Documentation
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Overview ¶
Package query implements the custom query format used to filter event subscriptions in Tendermint.
Query expressions describe properties of events and their attributes, using strings like:
abci.invoice.number = 22 AND abci.invoice.owner = 'Ivan'
Query expressions can handle attribute values encoding numbers, strings, dates, and timestamps. The complete query grammar is described in the query/syntax package.
Index ¶
Constants ¶
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Functions ¶
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Types ¶
type Query ¶
type Query struct {
// contains filtered or unexported fields
}
A Query is the compiled form of a query.
var All *Query
All is a query that matches all events.
func Compile ¶ added in v0.35.1
Compile compiles the given query AST so it can be used to match events.
func MustCompile ¶ added in v0.35.1
MustCompile compiles the query expression into an executable query. In case of error, MustCompile will panic.
This is intended for use in program initialization; use query.New if you need to check errors.
func (*Query) Matches ¶
Matches satisfies part of the pubsub.Query interface. This implementation never reports an error. A nil *Query matches all events.
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