promqlengine

Documentation

Overview

Package promqlengine contains utilities for PromQL engine.

Index

• type Cache
  • func NewCache(defaultEngines map[time.Duration]*promql.Engine, newEngineFn NewEngineFn) *Cache
  • func (c *Cache) Get(lookbackDelta time.Duration) (*promql.Engine, error)
• type NewEngineFn

Types

type Cache

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

Cache caches PromQL engines by lookback duration.

func NewCache

func NewCache(defaultEngines map[time.Duration]*promql.Engine, newEngineFn NewEngineFn) *Cache

NewCache creates a new Cache.

func (*Cache) Get

func (c *Cache) Get(lookbackDelta time.Duration) (*promql.Engine, error)

Get returns a new or cached promql.Engine.

type NewEngineFn

type NewEngineFn func(lookbackDelta time.Duration) (*promql.Engine, error)

NewEngineFn is a function to create a new promql.Engine with given lookback duration.