querybuilder

Documentation

Index

• func RegisterBuilderFactory(metricSource metricquery.MetricSource, initFunc BuilderFactoryFunc)
• type BuildQueryBehavior
• type Builder
• type BuilderFactoryFunc
  • func GetBuilderFactory(metricSource metricquery.MetricSource) BuilderFactoryFunc
• type QueryBuilder

Functions

func RegisterBuilderFactory

func RegisterBuilderFactory(metricSource metricquery.MetricSource, initFunc BuilderFactoryFunc)

Types

type BuildQueryBehavior

type BuildQueryBehavior struct {
	// FederatedClusterScope means this query data source supports multiple clusters data query.
	// false means do not need use cluster as query param.
	// true means the data source maybe has multiple clusters, so must require cluster param. it will inject cluster param to the query when build query
	FederatedClusterScope bool
}

type Builder

type Builder interface {
	BuildQuery(behavior BuildQueryBehavior) (*metricquery.Query, error)
}

Builder is an interface which is used to build query for different data sources according a context info about the query.

type BuilderFactoryFunc

type BuilderFactoryFunc func(metric *metricquery.Metric) Builder

func GetBuilderFactory

func GetBuilderFactory(metricSource metricquery.MetricSource) BuilderFactoryFunc

type QueryBuilder

type QueryBuilder interface {
	Builder(source metricquery.MetricSource) Builder
}

QueryBuilder is an Builder factory to make Builders