Package com.tangosol.io.journal

Class FlashJournalRM.BufferPool

java.lang.Object

com.tangosol.io.journal.FlashJournalRM.BufferPool

Enclosing class:

FlashJournalRM

protected static class FlashJournalRM.BufferPool
extends Object

The BufferPool class recycles up to a maximum number of Buffer objects.

Constructor Summary

Constructors

Constructor	Description
BufferPool(int cbBuffer, int cMaxBuffers)	Instantiate a buffer pool to provide buffers to the journal appending process.

Method Summary

Modifier and Type	Method	Description
FlashJournalRM.Buffer	allocate(byte[] abOv)	Allocate a buffer from the buffer pool.
int	getSize()	Determine the current size of the pool.
void	release(FlashJournalRM.Buffer buf)	Return a buffer to the pool.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferPool

public BufferPool(int cbBuffer,
                  int cMaxBuffers)

Instantiate a buffer pool to provide buffers to the journal appending process.

Parameters:

cbBuffer - the size of each buffer

cMaxBuffers - the maximum number of buffers to hold on to

Method Detail

allocate

public FlashJournalRM.Buffer allocate(byte[] abOv)

Allocate a buffer from the buffer pool.

Parameters:

abOv - the overlay byte[]

Returns:

a Buffer instance

release

public void release(FlashJournalRM.Buffer buf)

Return a buffer to the pool. Note that this isn't a precisely limited pool; it's possible that it could hold slightly more than the maximum size due to the avoidance of synchronization.

Parameters:

buf - the Buffer to return to the pool

getSize

public int getSize()

Determine the current size of the pool.

Returns:

the number of buffers in the pool

toString

public String toString()

Overrides:

toString in class Object