com.datadoghq.sketch.ddsketch.store

Class SparseStore

java.lang.Object

com.datadoghq.sketch.ddsketch.store.SparseStore

All Implemented Interfaces:

Store

public class SparseStore
extends java.lang.Object
implements Store

Constructor Summary

Constructors

Constructor and Description
SparseStore()

Method Summary

Modifier and Type	Method and Description
void	add(Bin bin) Updates the counter at the specified index.
void	add(int index) Increments the counter at the specified index.
void	add(int index, double count) Updates the counter at the specified index.
void	clear() Zeros all counts in the store.
Store	copy()
void	encode(Output output, Flag.Type storeFlagType)
void	forEach(BinAcceptor acceptor) Supplies each bin to the acceptor
java.util.Iterator<Bin>	getAscendingIterator()
java.util.Iterator<Bin>	getDescendingIterator()
int	getMaxIndex()
int	getMinIndex()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.datadoghq.sketch.ddsketch.store.Store

add, decodeAndMergeWith, getAscendingStream, getDescendingStream, getStream, getTotalCount, isEmpty, mergeWith, serialize, serializedSize

Constructor Detail

SparseStore

public SparseStore()

Method Detail

add

public void add(int index)

Description copied from interface: Store

Increments the counter at the specified index.

Specified by:

add in interface Store

Parameters:

index - the index of the counter to be incremented

add

public void add(int index,
                double count)

Description copied from interface: Store

Updates the counter at the specified index.

Specified by:

add in interface Store

Parameters:

index - the index of the counter to be updated

count - a non-negative value

add

public void add(Bin bin)

Description copied from interface: Store

Updates the counter at the specified index.

Specified by:

add in interface Store

Parameters:

bin - the bin to be used for updating the counter

copy

public Store copy()

Specified by:

copy in interface Store

Returns:

a (deep) copy of this store

clear

public void clear()

Description copied from interface: Store

Zeros all counts in the store. The store behaves as if empty after this call, but no underlying storage is released.

Specified by:

clear in interface Store

getMinIndex

public int getMinIndex()

Specified by:

getMinIndex in interface Store

Returns:

the index of the lowest non-zero counter

getMaxIndex

public int getMaxIndex()

Specified by:

getMaxIndex in interface Store

Returns:

the index of the highest non-zero counter

forEach

public void forEach(BinAcceptor acceptor)

Description copied from interface: Store

Supplies each bin to the acceptor

Specified by:

forEach in interface Store

Parameters:

acceptor - consumes this store's bins

getAscendingIterator

public java.util.Iterator<Bin> getAscendingIterator()

Specified by:

getAscendingIterator in interface Store

Returns:

an iterator that iterates over the non-empty bins of this store, from lowest to highest index

getDescendingIterator

public java.util.Iterator<Bin> getDescendingIterator()

Specified by:

getDescendingIterator in interface Store

Returns:

an iterator that iterates over the non-empty bins of this store, from highest to lowest index

encode

public void encode(Output output,
                   Flag.Type storeFlagType)
            throws java.io.IOException

Specified by:

encode in interface Store

Throws:

java.io.IOException