store

package
v0.17.0 Latest Latest
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Published: Jul 29, 2015 License: Apache-2.0 Imports: 5 Imported by: 0

Documentation

Overview

Package cache implements a cache for time series data.

Index

Constants

This section is empty.

Variables

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Functions

This section is empty.

Types

type TimePoint

type TimePoint struct {
	Timestamp time.Time
	Value     interface{}
}

TimePoint is a single point of a timeseries, representing a time-value pair.

type TimeStore

type TimeStore interface {
	// Put stores a TimePoint to the TimeStore. Returns error upon failure.
	// Ignores zero timestamps.
	Put(tp TimePoint) error
	// Get returns a slice of elements that were previously stored with timestamps
	// between 'start' and 'end'. 'start' is expected to be before 'end'.
	// If 'start' is zero, it returns all the elements up until 'end'.
	// If 'end' is zero, it returns all the elements from 'start'.
	// If both 'start' and 'end' are zero, it returns all the elements in the store.
	Get(start, end time.Time) []TimePoint
	// Delete removes all elements that were previously stored with timestamps
	// between 'start' and 'end'.
	Delete(start, end time.Time) error
}

TimeStore represents a timeseries storage. Implementations are expected to be thread safe.

func NewCMAStore added in v0.16.0

func NewCMAStore() TimeStore

func NewGCStore

func NewGCStore(store TimeStore, bufferDuration time.Duration) TimeStore

func NewTimeStore

func NewTimeStore() TimeStore

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