bond

package module
v0.1.51 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Apr 19, 2024 License: Apache-2.0 Imports: 29 Imported by: 2

README

bond

Bond is database built on Pebble the key-value store that's based on LevelDB/RocksDB and is used in CockroachDB as a storage engine. It leverages Pebbles SSTables in order to provide efficient query execution times in comparison to other solutions on the market.

Bond features:

  • Tables
  • Indexes
  • Ordered Indexes
  • Partial Indexes
  • Queries
  • Custom Serialization / Deserialization
Basics:

The example data structure:

type ExampleStruct struct {
    Id          uint64 `json:"id"`
    Type        string `json:"type"`
    IsActive    bool   `json:"isActive"`
    Description string `json:"description"`
    Amount      uint64 `json:"amount"`
}

The Bond database open / close:

db, err := bond.Open("example", &bond.Options{})
if err != nil {
    panic(err)
}

defer func() { _ = db.Close() }()

Table create:

const (
    ExampleStructTableId bond.TableID = 1
)

ExampleStructTable := bond.NewTable[*ExampleStruct](bond.TableOptions[*ExampleStruct]{
    // The database instance
    DB:        db,
    // The unique table identifier
    TableID:   ExampleStructTableID,
    // The table name for inspect purposes
    TableName: "example_stuct_table",
    TablePrimaryKeyFunc: func(b bond.KeyBuilder, es *ExampleStruct) []byte {
        return b.AddUint64Field(es.Id).Bytes()
    },
})

The index creation:

ExampleStructTypeIndex := bond.NewIndex[*ExampleStruct](bond.IndexOptions[*ExampleStruct]{
    // The unique index identifier
    IndexID:   bond.PrimaryIndexID + 1,
    // The index name for inspect purposes
    IndexName: "type_idx",
    // The function that determines index key
    IndexKeyFunc: func(b bond.KeyBuilder, es *ExampleStruct) []byte {
        return b.AddBytesField([]byte(es.Type)).Bytes()
    },
    IndexOrderFunc: bond.IndexOrderDefault[*ExampleStruct],
})

Insert:

exapleStructs := []*ExampleStruct{
    {
        Id:          1,
        Type:        "test",
        IsActive:    true,
        Description: "test description",
        Amount:      1,
    },
}

err := ExampleStructTable.Insert(context.Background(), exapleStructs)
if err != nil {
    panic(err)
}

Update:

exapleStructs := []*ExampleStruct{
    {
        Id:          1,
        Type:        "test",
        IsActive:    true,
        Description: "test description",
        Amount:      1,
    },
}

err := ExampleStructTable.Update(context.Background(), exapleStructs)
if err != nil {
    panic(err)
}

Delete:

err := ExampleStructTable.Delete(context.Background(), &ExampleStruct{Id: 1})
if err != nil {
    panic(err)
}

Query:

var exampleStructsFromQuery []*ExampleStruct
err := ExampleStructTable.Query().Execute(context.Background(), bond.NewSelectorPoint(&exampleStructsFromQuery))
if err != nil {
    panic(err)
}

Query using index:

err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(&ExampleStruct{Type: "test"})).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

Query using index with filter:

err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(&ExampleStruct{Type: "test"})).
    Filter(cond.Func(func(es *ExampleStruct) bool {
        return es.Amount > 5
    })).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

Query using index with filter and order:

err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(&ExampleStruct{Type: "test"})).
    Filter(cond.Func(func(es *ExampleStruct) bool {
        return es.Amount > 5
    })).
    Order(func(es *ExampleStruct, es2 *ExampleStruct) bool {
        return es.Amount < es2.Amount
    }).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

Query using index with offset and limit:

err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(&ExampleStruct{Type: "test"})).
    Offset(1).
    Limit(2).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

Query using index with cursor:

var exampleStructsFromQuery []*ExampleStruct

// page 1, page size 10
err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(&ExampleStruct{Type: "test"})).
    Limit(10).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

// page 2, page size 10
err := ExampleStructTable.Query().
    With(ExampleStructTypeIndex, bond.NewSelectorPoint(exampleStructsFromQuery[9])).
    Limit(10).
    Execute(context.Background(), &exampleStructsFromQuery)
if err != nil {
    panic(err)
}

Please see working example: here

Advanced:

TODO

Benchmarks:
goos: darwin
goarch: amd64
pkg: github.com/go-bond/bond/_benchmarks
cpu: Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_1                                                                                      55      21435621 ns/op               46.65 op/s          46761 B/op          8 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_10                                                                                     57      22982539 ns/op               43.51 op/s          48793 B/op          9 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_100                                                                                    51      22071951 ns/op               45.31 op/s          76952 B/op         15 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_1000                                                                                   56      25474395 ns/op               39.26 op/s         437938 B/op         38 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_10000                                                                                   9     126136403 ns/op                7.928 op/s       5600129 B/op        348 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_100000                                                                                  4     257728666 ns/op                3.880 op/s      38339220 B/op        473 allocs/op   
BenchmarkTableDeleteSuite/MsgpackSerializer/Delete_1000000                                                                                 1    1779859111 ns/op                0.5618 op/s     443109856 B/op      2174 allocs/op  
BenchmarkTableExistSuite/MsgpackSerializer/Exist_True                                                                                 356911          3507 ns/op           285225 op/s             21776 B/op          2 allocs/op   
BenchmarkTableExistSuite/MsgpackSerializer/Exist_False                                                                                327555          3341 ns/op           299312 op/s             21776 B/op          2 allocs/op   
BenchmarkTableGetSuite/MsgpackSerializer/Get_Row_Exist                                                                                274851          4608 ns/op           217061 op/s             21929 B/op          7 allocs/op   
BenchmarkTableGetSuite/MsgpackSerializer/Get_Row_Does_Not_Exist                                                                       214294          5513 ns/op           181389 op/s             22794 B/op         19 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_1                                                                                      52      22040371 ns/op               45.37 op/s          46106 B/op         15 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_10                                                                                     52      21085066 ns/op               47.43 op/s          55167 B/op         71 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_100                                                                                    55      22587303 ns/op               44.27 op/s         172031 B/op        618 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_1000                                                                                   39      33895317 ns/op               29.50 op/s        1328954 B/op       6052 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_10000                                                                                  10     167267479 ns/op                5.978 op/s      12690833 B/op      64187 allocs/op   
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_100000                                                                                  3     478770643 ns/op                2.089 op/s      135244917 B/op    604687 allocs/op  
BenchmarkTableInsertSuite/MsgpackSerializer/Insert_1000000                                                                                 1    4105578035 ns/op                0.2436 op/s     1316474888 B/op  6000308 allocs/op 
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_0                                                            1    30996623071 ns/op               0.03226 op/s   4271256224 B/op  100038541 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_500                                                       1918        700731 ns/op             1427 op/s            132644 B/op       2519 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_1000                                                       914       1329632 ns/op              752.1 op/s          229947 B/op       5021 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_5000                                                       175       6398196 ns/op              156.3 op/s          971058 B/op      25023 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_10000                                                       81      13246979 ns/op               75.49 op/s        2000515 B/op      50026 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_100000                                                       7     181796024 ns/op                5.501 op/s      20148132 B/op     500042 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_0                                                            1    27678424450 ns/op               0.03613 op/s   4162342944 B/op  100005887 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_500_Limit_1000                                                     927       1288063 ns/op              776.4 op/s          228820 B/op       5019 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_1000_Limit_1000                                                    968       1233684 ns/op              810.6 op/s          228819 B/op       5019 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_5000_Limit_1000                                                    772       1658814 ns/op              602.8 op/s          228824 B/op       5019 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_10000_Limit_1000                                                   500       2269328 ns/op              440.7 op/s          228838 B/op       5019 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_100000_Limit_1000                                                   56      23033768 ns/op               43.41 op/s         229017 B/op       5019 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_1000000_Limit_1000                                                   5     244945729 ns/op                4.083 op/s        233812 B/op       5027 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_Default_Offset_10000000_Limit_1000                                                  1    2597524128 ns/op                0.3850 op/s       233384 B/op       5029 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_0                                                     1    68874325866 ns/op               0.01452 op/s   4482103144 B/op  120003295 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_500                                                 780       1629769 ns/op              613.6 op/s          139004 B/op       3014 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_1000                                                367       3318433 ns/op              301.3 op/s          244011 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_5000                                                 69      15977567 ns/op               62.59 op/s        1051362 B/op      30020 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_10000                                                34      35823646 ns/op               27.91 op/s        2161064 B/op      60023 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_100000                                                3     355105585 ns/op                2.816 op/s      21754522 B/op     600052 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_0                                                     1    67871699169 ns/op               0.01473 op/s   4481792008 B/op  120000143 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_500_Limit_1000                                              345       3480769 ns/op              287.3 op/s          244864 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_1000_Limit_1000                                             351       3515941 ns/op              284.4 op/s          244885 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_5000_Limit_1000                                             292       4063913 ns/op              246.1 op/s          244875 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_10000_Limit_1000                                            259       4656679 ns/op              214.7 op/s          244910 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_100000_Limit_1000                                            75      13553063 ns/op               73.78 op/s         244986 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_1000000_Limit_1000                                            8     134739117 ns/op                7.422 op/s        247848 B/op       6024 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_10000000_Limit_1000                                           1    1259131522 ns/op                0.7942 op/s       268176 B/op       6053 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_0                                     1    155749201000 ns/op              0.006421 op/s 4482067744 B/op   120002569 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_500                                 741       1702388 ns/op              587.4 op/s          139803 B/op       3014 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_1000                                338       3654652 ns/op              273.6 op/s          244804 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_5000                                 27      45435742 ns/op               22.01 op/s        1052697 B/op      30021 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_10000                                15      79228908 ns/op               12.62 op/s        2162754 B/op      60025 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_100000                                2     839746535 ns/op                1.191 op/s      21759216 B/op     600056 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_0                                     1    151634938487 ns/op              0.006595 op/s 4481832976 B/op   120000234 allocs/op
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_500_Limit_1000                              357       3392862 ns/op              294.7 op/s          244861 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_1000_Limit_1000                             307       4006004 ns/op              249.6 op/s          244871 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_5000_Limit_1000                             279       4404264 ns/op              227.1 op/s          244896 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_10000_Limit_1000                            249       4896684 ns/op              204.2 op/s          244908 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_100000_Limit_1000                            87      13176678 ns/op               75.89 op/s         245055 B/op       6016 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_1000000_Limit_1000                            9     117464379 ns/op                8.513 op/s        341324 B/op       6111 allocs/op   
BenchmarkTableQuerySuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_10000000_Limit_1000                           1    1149570525 ns/op                0.8699 op/s       277512 B/op       6132 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_0                                         1    13473462540 ns/op               0.07422 op/s   3258296152 B/op  80018131 allocs/op 
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_500                                    4354        302066 ns/op             3311 op/s            108045 B/op       2020 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_1000                                   2012        573114 ns/op             1745 op/s            181893 B/op       4022 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_5000                                    469       2644978 ns/op              378.1 op/s          740143 B/op      20028 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_10000                                   205       5600330 ns/op              178.6 op/s         1541788 B/op      40033 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_100000                                   21      54555322 ns/op               18.33 op/s       15534291 B/op     400083 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_0_Limit_0                                         1    8372340234 ns/op                0.1194 op/s     3224929720 B/op 80020549 allocs/op 
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_500_Limit_1000                                 3174        406053 ns/op             2463 op/s            181538 B/op       4020 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_1000_Limit_1000                                2667        472707 ns/op             2115 op/s            180805 B/op       4019 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_5000_Limit_1000                                1539        864022 ns/op             1157 op/s            180808 B/op       4019 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_10000_Limit_1000                                783       1398672 ns/op              715.0 op/s          180817 B/op       4019 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_100000_Limit_1000                                60      20634266 ns/op               48.46 op/s         181116 B/op       4019 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_1000000_Limit_1000                                5     227228841 ns/op                4.401 op/s        184054 B/op       4027 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_Default_Offset_10000000_Limit_1000                               1    2277793494 ns/op                0.4390 op/s       197448 B/op       4133 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_0                                  1    48164156295 ns/op               0.02076 op/s   3522612528 B/op  100008652 allocs/op
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_500                             1213       1177553 ns/op              849.2 op/s          114989 B/op       2514 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_1000                             480       2845872 ns/op              351.4 op/s          196006 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_5000                              99      11917934 ns/op               83.91 op/s         811226 B/op      25020 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_10000                             45      23932712 ns/op               41.78 op/s        1680789 B/op      50023 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_100000                             4     258984731 ns/op                3.861 op/s      16945386 B/op     500038 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_0_Limit_0                                  1    47339128888 ns/op               0.02112 op/s   3521755360 B/op  100000087 allocs/op
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_500_Limit_1000                           568       2154471 ns/op              464.2 op/s          196829 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_1000_Limit_1000                          600       2182465 ns/op              458.2 op/s          196827 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_5000_Limit_1000                          398       3152631 ns/op              317.2 op/s          196842 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_10000_Limit_1000                         361       3346484 ns/op              298.8 op/s          196852 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_100000_Limit_1000                         86      12360362 ns/op               80.90 op/s         196877 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_1000000_Limit_1000                         9     130624754 ns/op                7.656 op/s        198771 B/op       5019 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddress_Offset_10000000_Limit_1000                        1    1320082639 ns/op                0.7575 op/s       214544 B/op       5043 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_0                  1    132789792932 ns/op              0.007531 op/s 3521987768 B/op   100002214 allocs/op
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_500             1106       1133327 ns/op              882.4 op/s          115783 B/op       2514 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_1000             429       2616724 ns/op              382.2 op/s          196834 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_5000              38      31323974 ns/op               31.92 op/s         812298 B/op      25020 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_10000             16      68928247 ns/op               14.51 op/s        1682340 B/op      50025 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_100000             2     718200814 ns/op                1.392 op/s      16947612 B/op     500045 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_0_Limit_0                  1    131208252426 ns/op              0.007621 op/s 3521783120 B/op   100000178 allocs/op
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_500_Limit_1000           484       2566719 ns/op              389.6 op/s          196834 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_1000_Limit_1000          498       3012091 ns/op              332.0 op/s          196809 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_5000_Limit_1000          344       3427806 ns/op              291.7 op/s          196844 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_10000_Limit_1000         296       4036202 ns/op              247.8 op/s          198722 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_100000_Limit_1000         82      14511872 ns/op               68.91 op/s         196840 B/op       5016 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_1000000_Limit_1000         8     143265253 ns/op                6.980 op/s        199461 B/op       5024 allocs/op   
BenchmarkTableQueryWithTableSerializerSuite/MsgpackSerializer/Query_Index_AccountAddressOrderBalanceDESC_Offset_10000000_Limit_1000        1    1289410439 ns/op                0.7755 op/s       213304 B/op       5041 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_1                                                                                      112639         14949 ns/op            66894 op/s             43744 B/op         13 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_10                                                                                      70560         18569 ns/op            53856 op/s             45352 B/op         62 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_1000                                                                                     1080       1369065 ns/op              730.4 op/s          228055 B/op       5022 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_10000                                                                                     100      10793037 ns/op               92.65 op/s        2004723 B/op      50028 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_100000                                                                                     10     125962566 ns/op                7.939 op/s      20234629 B/op     500086 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_1000000                                                                                     1    1088019188 ns/op                0.9191 op/s     208238184 B/op   5001535 allocs/op  
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_1                                                                                 187689         18730 ns/op            53393 op/s             43760 B/op         11 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_10                                                                                 44625         26748 ns/op            37386 op/s             45512 B/op         69 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_1000                                                                                 625       2119371 ns/op              471.8 op/s          244672 B/op       6016 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_10000                                                                                 63      31597260 ns/op               31.65 op/s        2246877 B/op      60475 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_100000                                                                                 3     349450438 ns/op                2.862 op/s      27028565 B/op     628569 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_1000000                                                                                1    5135691707 ns/op                0.1947 op/s     356617224 B/op   6750521 allocs/op  
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_0_Read_0                                                                          100496         13555 ns/op            73779 op/s             43849 B/op          9 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_1000_Read_0                                                                        10000        109424 ns/op             9139 op/s             44177 B/op          9 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_10000_Read_0                                                                        1396        896962 ns/op             1115 op/s             48114 B/op          9 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_100000_Read_0                                                                        126       9501140 ns/op              105.3 op/s           88855 B/op         19 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_1000000_Read_0                                                                        12      91755776 ns/op               10.90 op/s         344361 B/op         79 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_0_Read_1000                                                                          931       1309299 ns/op              763.8 op/s          231218 B/op       5016 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_1000_Read_1000                                                                       789       2159174 ns/op              463.1 op/s          228639 B/op       5013 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_10000_Read_1000                                                                      246      10723794 ns/op               93.25 op/s         228690 B/op       5013 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_100000_Read_1000                                                                      33      31780862 ns/op               31.47 op/s         229070 B/op       5013 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/Scan_Skip_1000000_Read_1000                                                                      4     261022972 ns/op                3.831 op/s        235722 B/op       5024 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_0_Read_0                                                                      32185         39069 ns/op            25596 op/s             43903 B/op          6 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_1000_Read_0                                                                   10000        127520 ns/op             7842 op/s             43954 B/op          3 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_10000_Read_0                                                                   1000       1128521 ns/op              886.1 op/s           45716 B/op          4 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_100000_Read_0                                                                   117      10272669 ns/op               97.35 op/s          43682 B/op          3 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_1000000_Read_0                                                                   10     108041116 ns/op                9.256 op/s         45021 B/op          5 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_0_Read_1000                                                                     210       5467755 ns/op              182.9 op/s          244368 B/op       6003 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_1000_Read_1000                                                                  225       5480393 ns/op              182.5 op/s          244697 B/op       6009 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_10000_Read_1000                                                                 187       6353224 ns/op              157.4 op/s          244741 B/op       6009 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_100000_Read_1000                                                                 57      18664344 ns/op               53.58 op/s         244983 B/op       6009 allocs/op   
BenchmarkTableScanSuite/MsgpackSerializer/ScanIndex_Skip_1000000_Read_1000                                                                 9     114901596 ns/op                8.703 op/s        247905 B/op       6013 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_1                                                                                      55      24977718 ns/op               40.04 op/s          89446 B/op         23 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_10                                                                                     55      20944039 ns/op               47.75 op/s          82883 B/op        139 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_100                                                                                    49      22186017 ns/op               45.07 op/s         187637 B/op       1317 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_1000                                                                                   42      32783521 ns/op               30.50 op/s        1446429 B/op      13070 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_10000                                                                                   8     158237332 ns/op                6.320 op/s      14846201 B/op     139094 allocs/op   
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_100000                                                                                  2     536754324 ns/op                1.863 op/s      115795248 B/op   1320747 allocs/op  
BenchmarkTableUpdateSuite/MsgpackSerializer/Update_1000000                                                                                 1    5807789010 ns/op                0.1722 op/s     1374315704 B/op 13000591 allocs/op 
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_1                                                                                      57      21369676 ns/op               46.80 op/s          97086 B/op         26 allocs/op   
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_10                                                                                     57      21444930 ns/op               46.63 op/s         303898 B/op        184 allocs/op   
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_100                                                                                    54      24032799 ns/op               41.61 op/s        2387705 B/op       1725 allocs/op   
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_1000                                                                                   42      34393250 ns/op               29.08 op/s       23415072 B/op      17060 allocs/op   
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_10000                                                                                   7     164457707 ns/op                6.081 op/s      235914947 B/op    184559 allocs/op  
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_100000                                                                                  1    1043953019 ns/op                0.9579 op/s     2337483320 B/op  1070225 allocs/op 
BenchmarkTableUpsertSuite/MsgpackSerializer/Upsert_1000000                                                                                 1    19010319722 ns/op               0.05260 op/s   23349540512 B/op 10700424 allocs/op

Documentation

Index

Constants

View Source 
const (
	// BOND_DB_DATA_TABLE_ID ..
	BOND_DB_DATA_TABLE_ID = 0x0

	// BOND_DB_DATA_USER_SPACE_INDEX_ID
	BOND_DB_DATA_USER_SPACE_INDEX_ID = 0xFF
)
View Source 
const (
	// BOND_DB_DATA_VERSION ..
	BOND_DB_DATA_VERSION = 1
)
View Source 
const DefaultKeyBufferSize = 2048
View Source 
const DefaultMaxConcurrentCompactions = 4
View Source 
const DefaultMaxWriterConcurrency = 8
View Source 
const DefaultNumberOfKeyBuffersInMultiKeyBuffer = 1000
View Source 
const DefaultNumberOfPreAllocBytesArrays = 50
View Source 
const DefaultNumberOfPreAllocKeyBuffers = 2 * persistentBatchSize
View Source 
const DefaultNumberOfPreAllocMultiKeyBuffers = 10
View Source 
const DefaultNumberOfPreAllocValueBuffers = 10 * DefaultScanPrefetchSize
View Source 
const DefaultScanPrefetchSize = 100
View Source 
const DefaultValueBufferSize = 2048
View Source 
const NumberSequenceBitShift = 24
View Source 
const NumberSequenceSequenceNumberMask = 0x0000000000FFFFFF
View Source 
const NumberSequenceTimestampMask = 0xFFFFFFFFFF000000
View Source 
const PebbleFormatFile = "PEBBLE_FORMAT_VERSION"
View Source 
const PrimaryIndexID = IndexID(0)
View Source 
const PrimaryIndexName = "primary"
View Source 
const ReindexBatchSize = 10_000

Variables

View Source 
var (
	Sync   = WriteOptions{Sync: true}
	NoSync = WriteOptions{Sync: false}
)
View Source 
var (
	ErrNotFound = fmt.Errorf("bond: not found")
)

Functions

func ContextWithBatch 

func ContextWithBatch(ctx context.Context, batch Batch) context.Context

func ContextWithSyncBatch 

func ContextWithSyncBatch(ctx context.Context, batch *SyncBatch) context.Context

func DefaultKeyComparer 

func DefaultKeyComparer() *pebble.Comparer

func DefaultPebbleOptions 

func DefaultPebbleOptions() *pebble.Options

func FilterInitialize 

func FilterInitialize(ctx context.Context, filter Filter, filterStorer FilterStorer, scanners []TableScanner[any]) error

func KeyEncode 

func KeyEncode(key Key, rawBuffs ...[]byte) []byte

func KeyEncodeRaw 

func KeyEncodeRaw(tableID TableID, indexID IndexID, indexFunc, indexOrderFunc, primaryKeyFunc func(buff []byte) []byte, buffs ...[]byte) []byte

func MigratePebbleFormatVersion added in v0.1.48 

func MigratePebbleFormatVersion(dir string, upgradeVersion uint64) error

func PebbleFormatVersion added in v0.1.48 

func PebbleFormatVersion(dir string) (uint64, error)

func TableUpsertOnConflictReplace 

func TableUpsertOnConflictReplace[T any](_, new T) T

Types

type Applier 

type Applier interface {
	Apply(b Batch, opt WriteOptions) error
}

type Backup added in v0.1.44 

type Backup interface {
	Dump(ctx context.Context, dir string, tables []TableID, withIndex bool) error
	Restore(ctx context.Context, dir string, tables []TableID, withIndex bool) error
}

type Batch 

type Batch interface {
	ID() uint64
	Len() int
	Empty() bool
	Reset()

	Type() BatchType

	Getter
	Setter
	Deleter
	DeleterWithRange
	Iterationer

	Applier
	Committer
	Closer
}

func ContextRetrieveBatch 

func ContextRetrieveBatch(ctx context.Context) Batch

type BatchType added in v0.1.50 

type BatchType int
const (
	BatchTypeWriteOnly BatchType = iota
	BatchTypeReadWrite
)

type Batcher 

type Batcher interface {
	Batch(bType BatchType) Batch
}

type Closer 

type Closer io.Closer

type Committer 

type Committer interface {
	Commit(opt WriteOptions) error

	OnCommit(func(b Batch) error)
	OnCommitted(func(b Batch))
	OnError(func(b Batch, err error))
	OnClose(func(b Batch))
}

type DB 

type DB interface {
	Backend() *pebble.DB
	Serializer() Serializer[any]

	Getter
	Setter
	Deleter
	DeleterWithRange
	Iterationer

	Batcher
	Applier

	Closer
	Backup

	OnClose(func(db DB))
	// contains filtered or unexported methods
}

func Open 

func Open(dirname string, opts *Options) (DB, error)

type Deleter 

type Deleter interface {
	Delete(key []byte, opt WriteOptions, batch ...Batch) error
}

type DeleterWithRange 

type DeleterWithRange interface {
	DeleteRange(start []byte, end []byte, opt WriteOptions, batch ...Batch) error
}

type Filter 

type Filter interface {
	Add(ctx context.Context, key []byte)
	MayContain(ctx context.Context, key []byte) bool

	Load(ctx context.Context, store FilterStorer) error
	Save(ctx context.Context, store FilterStorer) error
	Clear(ctx context.Context, store FilterStorer) error
}

type FilterInitializable 

type FilterInitializable struct {
	Filter
	// contains filtered or unexported fields
}

func (*FilterInitializable) Initialize 

func (f *FilterInitializable) Initialize(ctx context.Context, filterStorer FilterStorer, scanners []TableScanner[any]) error

func (*FilterInitializable) MayContain 

func (f *FilterInitializable) MayContain(ctx context.Context, key []byte) bool

func (*FilterInitializable) Save 

func (f *FilterInitializable) Save(ctx context.Context, store FilterStorer) error

type FilterStorer 

type FilterStorer interface {
	Getter
	Setter
	DeleterWithRange
}

type Getter 

type Getter interface {
	Get(key []byte, batch ...Batch) (data []byte, closer io.Closer, err error)
}

type Index 

type Index[T any] struct {
	IndexID   IndexID
	IndexName string

	IndexKeyFunction    IndexKeyFunction[T]
	IndexFilterFunction IndexFilterFunction[T]
	IndexOrderFunction  IndexOrderFunction[T]
}

func NewIndex 

func NewIndex[T any](opt IndexOptions[T]) *Index[T]

func (*Index[T]) ID 

func (idx *Index[T]) ID() IndexID

func (*Index[T]) Intersect 

func (idx *Index[T]) Intersect(ctx context.Context, table Table[T], sel Selector[T], indexes []*Index[T], sels []Selector[T], optBatch ...Batch) ([][]byte, error)

func (*Index[T]) Iter 

func (idx *Index[T]) Iter(table Table[T], selector Selector[T], optBatch ...Batch) Iterator

Iter returns an iterator for the index.

func (*Index[T]) Name 

func (idx *Index[T]) Name() string

func (*Index[T]) OnDelete 

func (idx *Index[T]) OnDelete(table Table[T], tr T, batch Batch, buffs ...[]byte) error

func (*Index[T]) OnInsert 

func (idx *Index[T]) OnInsert(table Table[T], tr T, batch Batch, buffs ...[]byte) error

func (*Index[T]) OnUpdate 

func (idx *Index[T]) OnUpdate(table Table[T], oldTr T, tr T, batch Batch, buffs ...[]byte) error

type IndexFilterFunction 

type IndexFilterFunction[T any] func(t T) bool

type IndexID 

type IndexID uint8

type IndexInfo 

type IndexInfo interface {
	ID() IndexID
	Name() string
}

type IndexKeyFunction 

type IndexKeyFunction[T any] func(builder KeyBuilder, t T) []byte

type IndexOptions 

type IndexOptions[T any] struct {
	IndexID         IndexID
	IndexName       string
	IndexKeyFunc    IndexKeyFunction[T]
	IndexOrderFunc  IndexOrderFunction[T]
	IndexFilterFunc IndexFilterFunction[T]
}

type IndexOrder 

type IndexOrder struct {
	KeyBuilder KeyBuilder
}

func IndexOrderDefault 

func IndexOrderDefault[T any](o IndexOrder, t T) IndexOrder

func (IndexOrder) Bytes 

func (o IndexOrder) Bytes() []byte

func (IndexOrder) OrderBigInt 

func (o IndexOrder) OrderBigInt(b *big.Int, bits int, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderByte 

func (o IndexOrder) OrderByte(b byte, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderBytes 

func (o IndexOrder) OrderBytes(b []byte, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderInt16 

func (o IndexOrder) OrderInt16(i int16, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderInt32 

func (o IndexOrder) OrderInt32(i int32, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderInt64 

func (o IndexOrder) OrderInt64(i int64, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderUint16 

func (o IndexOrder) OrderUint16(i uint16, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderUint32 

func (o IndexOrder) OrderUint32(i uint32, orderType IndexOrderType) IndexOrder

func (IndexOrder) OrderUint64 

func (o IndexOrder) OrderUint64(i uint64, orderType IndexOrderType) IndexOrder

type IndexOrderFunction 

type IndexOrderFunction[T any] func(o IndexOrder, t T) IndexOrder

type IndexOrderType 

type IndexOrderType bool
const (
	IndexOrderTypeASC  IndexOrderType = false
	IndexOrderTypeDESC                = true
)

type IterOptions 

type IterOptions struct {
	pebble.IterOptions
	// contains filtered or unexported fields
}

type Iterationer 

type Iterationer interface {
	Iter(opt *IterOptions, batch ...Batch) Iterator
}

type Iterator 

type Iterator interface {
	First() bool
	Last() bool
	Prev() bool
	Next() bool
	Valid() bool
	Error() error

	SeekGE(key []byte) bool
	SeekPrefixGE(key []byte) bool
	SeekLT(key []byte) bool

	Key() []byte
	Value() []byte

	Close() error
}

type Key 

type Key struct {
	TableID    TableID
	IndexID    IndexID
	Index      []byte
	IndexOrder []byte
	PrimaryKey []byte
}

func KeyDecode 

func KeyDecode(keyBytes []byte) Key

func (Key) IsDataKey 

func (k Key) IsDataKey() bool

func (Key) IsIndexKey 

func (k Key) IsIndexKey() bool

func (Key) IsKeyPrefix 

func (k Key) IsKeyPrefix() bool

func (Key) ToDataKey 

func (k Key) ToDataKey() Key

func (Key) ToKeyPrefix 

func (k Key) ToKeyPrefix() Key

type KeyBuilder 

type KeyBuilder struct {
	// contains filtered or unexported fields
}

func NewKeyBuilder 

func NewKeyBuilder(buff []byte) KeyBuilder

func (KeyBuilder) AddBigIntField 

func (b KeyBuilder) AddBigIntField(bi *big.Int, bits int) KeyBuilder

func (KeyBuilder) AddByteField 

func (b KeyBuilder) AddByteField(btt byte) KeyBuilder

func (KeyBuilder) AddBytesField 

func (b KeyBuilder) AddBytesField(bs []byte) KeyBuilder

func (KeyBuilder) AddInt16Field 

func (b KeyBuilder) AddInt16Field(i int16) KeyBuilder

func (KeyBuilder) AddInt32Field 

func (b KeyBuilder) AddInt32Field(i int32) KeyBuilder

func (KeyBuilder) AddInt64Field 

func (b KeyBuilder) AddInt64Field(i int64) KeyBuilder

func (KeyBuilder) AddStringField 

func (b KeyBuilder) AddStringField(s string) KeyBuilder

func (KeyBuilder) AddUint16Field 

func (b KeyBuilder) AddUint16Field(i uint16) KeyBuilder

func (KeyBuilder) AddUint32Field 

func (b KeyBuilder) AddUint32Field(i uint32) KeyBuilder

func (KeyBuilder) AddUint64Field 

func (b KeyBuilder) AddUint64Field(i uint64) KeyBuilder

func (KeyBuilder) Bytes 

func (b KeyBuilder) Bytes() []byte

type KeyBytes 

type KeyBytes []byte

func NewUserKey 

func NewUserKey(key string) KeyBytes

func (KeyBytes) Index 

func (key KeyBytes) Index() []byte

func (KeyBytes) IndexID 

func (key KeyBytes) IndexID() IndexID

func (KeyBytes) IsDataKey 

func (key KeyBytes) IsDataKey() bool

func (KeyBytes) IsIndexKey 

func (key KeyBytes) IsIndexKey() bool

func (KeyBytes) TableID 

func (key KeyBytes) TableID() TableID

func (KeyBytes) ToDataKeyBytes 

func (key KeyBytes) ToDataKeyBytes(rawBuffs ...[]byte) KeyBytes

func (KeyBytes) ToKey 

func (key KeyBytes) ToKey() Key

type Lazy 

type Lazy[T any] struct {
	GetFunc func() (T, error)
}

func (Lazy[T]) Get 

func (l Lazy[T]) Get() (T, error)

type NumberSequence 

type NumberSequence struct {
	// contains filtered or unexported fields
}

func (*NumberSequence) Next 

func (n *NumberSequence) Next() (uint64, error)

func (*NumberSequence) SequenceNumber 

func (n *NumberSequence) SequenceNumber(ns uint64) uint64

func (*NumberSequence) Timestamp 

func (n *NumberSequence) Timestamp(ns uint64) uint64

type Options 

type Options struct {
	PebbleOptions *pebble.Options

	Serializer Serializer[any]
}

func DefaultOptions 

func DefaultOptions() *Options

type OrderLessFunc 

type OrderLessFunc[R any] func(r, r2 R) bool

OrderLessFunc is the function template to be used for record sorting.

type Query 

type Query[T any] struct {
	// contains filtered or unexported fields
}

Query is the structure that is used to build record query.

Example: 

t.Query().
	With(ContractTypeIndex, bond.NewSelectorPoint(&Contract{ContractType: ContractTypeERC20})).
	Filter(cond.Func(func(c *Contract) bool {
		return c.Balance > 25
	})).
	Limit(50)

func (Query[T]) After 

func (q Query[T]) After(sel T) Query[T]

After sets the query to start after the row provided in argument.

func (Query[T]) CondFuncType 

func (q Query[T]) CondFuncType() reflect.Type

CondFuncType returns the type of the filter function.

func (Query[T]) Execute 

func (q Query[T]) Execute(ctx context.Context, r *[]T, optBatch ...Batch) error

Execute the built query.

func (Query[T]) Filter 

func (q Query[T]) Filter(cond cond.Cond[T]) Query[T]

Filter adds additional filtering to the query. The conditions can be built with structures that implement Cond interface.

func (Query[T]) Intersects 

func (q Query[T]) Intersects(queries ...Query[T]) Query[T]

func (Query[T]) Limit 

func (q Query[T]) Limit(limit uint64) Query[T]

Limit sets the maximal number of records returned.

WARNING: If not defined it will return all rows. Please be mindful of your memory constrains.

func (Query[T]) Offset 

func (q Query[T]) Offset(offset uint64) Query[T]

Offset sets offset of the records.

WARNING: Using Offset requires traversing through all the rows that are skipped. This may take a long time. Bond allows to use more efficient way to do that by passing last received row to With method as a selector. This will jump to that row instantly and start iterating from that point.

func (Query[T]) Order 

func (q Query[T]) Order(less OrderLessFunc[T]) Query[T]

Order sets order of the records.

func (Query[T]) Reverse 

func (q Query[T]) Reverse() Query[T]

Reverse reverses the order of the records. If not defined the order will be ASC. If defined it will be DESC. If defined twice it will be ASC again.

func (Query[T]) Table 

func (q Query[T]) Table() Table[T]

Table returns table that is used by this query.

func (Query[T]) With 

func (q Query[T]) With(idx *Index[T], selector Selector[T]) Query[T]

With selects index for query execution. If not stated the default index will be used. The index need to be supplemented with a record selector that has indexed and order fields set. This is very important as selector also defines the row at which we start the query.

WARNING: if we have DESC order on ID field, and we try to query with a selector that has ID set to 0 it will start from the last row.

type Selector 

type Selector[T any] interface {
	Type() SelectorType
}

Selector is the interface for all selectors.

type SelectorPoint 

type SelectorPoint[T any] interface {
	Selector[T]
	Point() T
	SetPoint(p T)
}

SelectorPoint is the interface for point selector.

func NewSelectorPoint 

func NewSelectorPoint[T any](point T) SelectorPoint[T]

NewSelectorPoint creates a new point selector.

type SelectorPoints 

type SelectorPoints[T any] interface {
	Selector[T]
	Points() []T
	SetPoints(p ...T)
}

SelectorPoints is the interface for multi-point selector.

func NewSelectorPoints 

func NewSelectorPoints[T any](points ...T) SelectorPoints[T]

NewSelectorPoints creates a new multi-point selector.

type SelectorRange 

type SelectorRange[T any] interface {
	Selector[T]
	Range() (T, T)
	SetRange(start, end T)
}

SelectorRange is the interface for range selector. The range is represented as a two-element slice. The first element is the start of the range, and the second element is the end of the range. The range is inclusive on both ends.

func NewSelectorRange 

func NewSelectorRange[T any](start, end T) SelectorRange[T]

NewSelectorRange creates a new range selector.

type SelectorRanges 

type SelectorRanges[T any] interface {
	Selector[T]
	Ranges() [][]T
	SetRanges(ranges ...[]T)
}

SelectorRanges is the interface for multi-range selector. The ranges are represented as a slice of two-element slices. The first element of each slice is the start of the range, and the second element is the end of the range. The range is inclusive on both ends.

func NewSelectorRanges 

func NewSelectorRanges[T any](ranges ...[]T) SelectorRanges[T]

NewSelectorRanges creates a new multi-range selector.

type SelectorType 

type SelectorType uint8

SelectorType is the type of selector. 

const (
	SelectorTypePoint SelectorType = iota
	SelectorTypePoints
	SelectorTypeRange
	SelectorTypeRanges
)

type Serializer 

type Serializer[T any] interface {
	Serialize(t T) ([]byte, error)
	Deserialize(b []byte, t T) error
}

type SerializerAnyWrapper 

type SerializerAnyWrapper[T any] struct {
	Serializer Serializer[any]
}

func (*SerializerAnyWrapper[T]) Deserialize 

func (s *SerializerAnyWrapper[T]) Deserialize(b []byte, t T) error

func (*SerializerAnyWrapper[T]) Serialize 

func (s *SerializerAnyWrapper[T]) Serialize(t T) ([]byte, error)

type SerializerWithBuffer 

type SerializerWithBuffer[T any] interface {
	SerializeFuncWithBuffer(buff *bytes.Buffer) func(T any) ([]byte, error)
}

type SerializerWithClosable 

type SerializerWithClosable[T any] interface {
	SerializerWithCloseable(t T) ([]byte, func(), error)
}

type Setter 

type Setter interface {
	Set(key []byte, value []byte, opt WriteOptions, batch ...Batch) error
}

type SyncBatch 

type SyncBatch struct {
	// contains filtered or unexported fields
}

func ContextRetrieveSyncBatch 

func ContextRetrieveSyncBatch(ctx context.Context) *SyncBatch

func NewSyncBatch 

func NewSyncBatch(batch Batch) *SyncBatch

func (*SyncBatch) WithSync 

func (s *SyncBatch) WithSync(f func(batch Batch) error) error

type Table 

type Table[T any] interface {
	TableReader[T]
	TableWriter[T]
}

func NewTable 

func NewTable[T any](opt TableOptions[T]) Table[T]

type TableDeleter 

type TableDeleter[T any] interface {
	Delete(ctx context.Context, trs []T, optBatch ...Batch) error
}

type TableExistChecker 

type TableExistChecker[T any] interface {
	Exist(tr T, optBatch ...Batch) bool
}

type TableGetter 

type TableGetter[T any] interface {
	Get(ctx context.Context, sel Selector[T], optBatch ...Batch) ([]T, error)
	GetPoint(ctx context.Context, sel T, optBatch ...Batch) (T, error)
}

type TableID 

type TableID uint8

type TableInfo 

type TableInfo interface {
	ID() TableID
	Name() string
	Indexes() []IndexInfo
	EntryType() reflect.Type
	SelectorPointType() reflect.Type
}

type TableInserter 

type TableInserter[T any] interface {
	Insert(ctx context.Context, trs []T, optBatch ...Batch) error
}

type TableIterationer 

type TableIterationer[T any] interface {
	Iter(sel Selector[T], optBatch ...Batch) Iterator
}

type TableOptions 

type TableOptions[T any] struct {
	DB DB

	TableID             TableID
	TableName           string
	TablePrimaryKeyFunc TablePrimaryKeyFunc[T]
	Serializer          Serializer[any]

	ScanPrefetchSize int

	Filter Filter
}

type TablePrimaryKeyFunc 

type TablePrimaryKeyFunc[T any] func(builder KeyBuilder, t T) []byte

type TableQuerier 

type TableQuerier[T any] interface {
	Query() Query[T]
}

type TableReader 

type TableReader[T any] interface {
	TableInfo

	DB() DB
	PrimaryKey(builder KeyBuilder, tr T) []byte
	PrimaryIndex() *Index[T]
	SecondaryIndexes() []*Index[T]
	Serializer() Serializer[*T]

	TableGetter[T]
	TableExistChecker[T]
	TableQuerier[T]

	TableScanner[T]
	TableIterationer[T]
}

type TableScanner 

type TableScanner[T any] interface {
	Scan(ctx context.Context, tr *[]T, reverse bool, optBatch ...Batch) error
	ScanIndex(ctx context.Context, i *Index[T], s Selector[T], tr *[]T, reverse bool, optBatch ...Batch) error
	ScanForEach(ctx context.Context, f func(keyBytes KeyBytes, l Lazy[T]) (bool, error), reverse bool, optBatch ...Batch) error
	ScanIndexForEach(ctx context.Context, idx *Index[T], s Selector[T], f func(keyBytes KeyBytes, t Lazy[T]) (bool, error), reverse bool, optBatch ...Batch) error
}

func TableAnyScanner 

func TableAnyScanner[T any](scanner TableScanner[T]) TableScanner[any]

type TableUnsafeInserter added in v0.1.51 

type TableUnsafeInserter[T any] interface {
	UnsafeInsert(ctx context.Context, trs []T, optBatch ...Batch) error
}

Warning: The indices of the records won't be updated properly if the records already exist.

type TableUnsafeUpdater 

type TableUnsafeUpdater[T any] interface {
	UnsafeUpdate(ctx context.Context, trs []T, oldTrs []T, optBatch ...Batch) error
}

TableUnsafeUpdater provides access to UnsafeUpdate method that allows to reduce number of database calls if you already have original version of the entry.

Warning: If you provide outdated rows the table indexes may be corrupted.

type TableUpdater 

type TableUpdater[T any] interface {
	Update(ctx context.Context, trs []T, optBatch ...Batch) error
}

type TableUpserter 

type TableUpserter[T any] interface {
	Upsert(ctx context.Context, trs []T, onConflict func(old, new T) T, optBatch ...Batch) error
}

type TableWriter 

type TableWriter[T any] interface {
	AddIndex(idxs []*Index[T], reIndex ...bool) error
	ReIndex(idxs []*Index[T]) error

	TableInserter[T]
	TableUpdater[T]
	TableUpserter[T]
	TableDeleter[T]
}

type UUIDGenerator 

type UUIDGenerator struct {
}

func (*UUIDGenerator) Next 

func (n *UUIDGenerator) Next() (uuid.UUID, error)

type UniqueKeyGenerator 

type UniqueKeyGenerator[T any] interface {
	Next() (T, error)
}

type WriteOptions 

type WriteOptions struct {
	Sync bool
}

Source Files

View all Source files

Directories

Path Synopsis
bench
reporters
suites
_examples
cli
cli_direct
simple
cmd
bond-cli
tools/immense_bench

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