sample

package

v0.0.1 Latest Latest Go to latest Published: May 27, 2017 License: GPL-3.0 Imports: 3 Imported by: 0

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Repository

github.com/mongoeye/mongoeye

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Documentation ¶

Overview ¶

Package sample represents sample stage of analysis. Task of the sample stage is to select the desired sample of documents from the collection and pass them to next stages of analysis.

Index ¶

func BsonChannelToSlice(ch <-chan bson.M) []interface{}
func RawToBsonChannel(input interface{}) <-chan bson.M
type AnalysisScope
type Options
type StageFactory

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func BsonChannelToSlice ¶

func BsonChannelToSlice(ch <-chan bson.M) []interface{}

BsonChannelToSlice reads BSON documents from channel into slice.

func RawToBsonChannel ¶

func RawToBsonChannel(input interface{}) <-chan bson.M

RawToBsonChannel converts the channel of raw (binary) data from DB to channel of BSON documents.

Types ¶

type AnalysisScope ¶

type AnalysisScope uint8

AnalysisScope defines the method of sampling.

const (
	// All - analyse all documents in collection
	All AnalysisScope = iota

	// First - analyse first N documents in collection
	First

	// Last - analyse last N documents in collection
	Last

	// Random - analyse random N documents in collection
	Random
)

type Options ¶

type Options struct {
	Query bson.M
	Scope AnalysisScope
	Limit uint64
}

Options of sample stage.

type StageFactory ¶

type StageFactory func(sampleOptions *Options) *analysis.Stage

StageFactory prototype.

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
sampleInDB Package sampleInDB is the implementation of the sampling stage.	Package sampleInDB is the implementation of the sampling stage.
tests Package sampleTests contains common tests for sample stage.	Package sampleTests contains common tests for sample stage.

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