freenet.support.io

Class ByteArrayRandomAccessBufferFactory

java.lang.Object

freenet.support.io.ByteArrayRandomAccessBufferFactory

All Implemented Interfaces:

LockableRandomAccessBufferFactory

public class ByteArrayRandomAccessBufferFactory
extends java.lang.Object
implements LockableRandomAccessBufferFactory

Constructor Summary

Constructors

Constructor and Description
ByteArrayRandomAccessBufferFactory()

Method Summary

Modifier and Type	Method and Description
LockableRandomAccessBuffer	makeRAF(byte[] initialContents, int offset, int size, boolean readOnly) Create a bucket with specified initial contents.
LockableRandomAccessBuffer	makeRAF(long size) Create a bucket.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteArrayRandomAccessBufferFactory

public ByteArrayRandomAccessBufferFactory()

Method Detail

makeRAF

public LockableRandomAccessBuffer makeRAF(long size)
                                   throws java.io.IOException

Description copied from interface: LockableRandomAccessBufferFactory

Create a bucket.

Specified by:

makeRAF in interface LockableRandomAccessBufferFactory

Parameters:

size - The maximum size of the data. Most factories will pre-allocate this space, and it may not be exceeded. However we do not guarantee that any I/O operation will complete; even if we have pre-allocated the disk space, we may be unable to write to it because of e.g. a hardware error.

Returns:

A LockableRandomAccessBuffer of the requested size.

Throws:

java.io.IOException - If an I/O error prevented the operation.

makeRAF

public LockableRandomAccessBuffer makeRAF(byte[] initialContents,
                                          int offset,
                                          int size,
                                          boolean readOnly)
                                   throws java.io.IOException

Description copied from interface: LockableRandomAccessBufferFactory

Create a bucket with specified initial contents.

Specified by:

makeRAF in interface LockableRandomAccessBufferFactory

Parameters:

initialContents - Byte array from which to copy data. Data will be copied even if the underlying implementation is a byte array, for reasons of consistency.

offset - Offset within the array to start copying data from.

size - Number of bytes to copy i.e. length of the new RandomAccessBuffer.

Returns:

Throws:

java.io.IOException - If an I/O error prevented the operation.