org.apache.lucene.store

Class RAMFile

java.lang.Object

org.apache.lucene.store.RAMFile

All Implemented Interfaces:

Accountable

public class RAMFile
extends java.lang.Object
implements Accountable

Represents a file in RAM as a list of byte[] buffers.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.ArrayList<byte[]>	buffers
(package private) RAMDirectory	directory
(package private) long	length
protected long	sizeInBytes

Constructor Summary

Constructors

Constructor and Description
RAMFile()
RAMFile(RAMDirectory directory)

Method Summary

Modifier and Type	Method and Description
protected byte[]	addBuffer(int size)
boolean	equals(java.lang.Object obj)
protected byte[]	getBuffer(int index)
long	getLength()
int	hashCode()
protected byte[]	newBuffer(int size) Expert: allocate a new buffer.
protected int	numBuffers()
long	ramBytesUsed() Return the memory usage of this object in bytes.
protected void	setLength(long length)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Detail

buffers

protected final java.util.ArrayList<byte[]> buffers

length

long length

directory

RAMDirectory directory

sizeInBytes

protected long sizeInBytes

Constructor Detail

RAMFile

public RAMFile()

RAMFile

RAMFile(RAMDirectory directory)

Method Detail

getLength

public long getLength()

setLength

protected void setLength(long length)

addBuffer

protected final byte[] addBuffer(int size)

getBuffer

protected final byte[] getBuffer(int index)

numBuffers

protected final int numBuffers()

newBuffer

protected byte[] newBuffer(int size)

Expert: allocate a new buffer. Subclasses can allocate differently.

Parameters:

size - size of allocated buffer.

Returns:

allocated buffer.

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object