org.tukaani.xz

Class ResettableArrayCache

java.lang.Object

org.tukaani.xz.ArrayCache

org.tukaani.xz.ResettableArrayCache

public class ResettableArrayCache
extends ArrayCache

An ArrayCache wrapper that remembers what has been allocated and allows returning all allocations to the underlying cache at once.

Since:

1.7

Constructor Summary

Constructors

Constructor and Description
ResettableArrayCache(ArrayCache arrayCache) Creates a new ResettableArrayCache based on the given ArrayCache.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getByteArray(int size, boolean fillWithZeros) Allocates a new byte array.
int[]	getIntArray(int size, boolean fillWithZeros) Allocates a new int array.
void	putArray(byte[] array) Puts the given byte array to the cache.
void	putArray(int[] array) Puts the given int array to the cache.
void	reset() Puts all allocated arrays back to the underlying ArrayCache that haven't already been put there with a call to putArray.

Methods inherited from class org.tukaani.xz.ArrayCache

getDefaultCache, getDummyCache, setDefaultCache

Methods inherited from class java.lang.Object

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

Constructor Detail

ResettableArrayCache

public ResettableArrayCache(ArrayCache arrayCache)

Creates a new ResettableArrayCache based on the given ArrayCache.

Method Detail

getByteArray

public byte[] getByteArray(int size,
                  boolean fillWithZeros)

Description copied from class: ArrayCache

Allocates a new byte array.

This implementation simply returns new byte[size].

Overrides:

getByteArray in class ArrayCache

Parameters:

size - the minimum size of the array to allocate; an implementation may return an array that is larger than the given size

fillWithZeros - if true, the caller expects that the first size elements in the array are zero; if false, the array contents can be anything, which speeds things up when reusing a cached array

putArray

public void putArray(byte[] array)

Description copied from class: ArrayCache

Puts the given byte array to the cache. The caller must no longer use the array.

This implementation does nothing.

Overrides:

putArray in class ArrayCache

getIntArray

public int[] getIntArray(int size,
                boolean fillWithZeros)

Description copied from class: ArrayCache

Allocates a new int array.

This implementation simply returns new int[size].

Overrides:

getIntArray in class ArrayCache

Parameters:

size - the minimum size of the array to allocate; an implementation may return an array that is larger than the given size

fillWithZeros - if true, the caller expects that the first size elements in the array are zero; if false, the array contents can be anything, which speeds things up when reusing a cached array

putArray

public void putArray(int[] array)

Description copied from class: ArrayCache

Puts the given int array to the cache. The caller must no longer use the array.

This implementation does nothing.

Overrides:

putArray in class ArrayCache

reset

public void reset()

Puts all allocated arrays back to the underlying ArrayCache that haven't already been put there with a call to putArray.