org.apache.jcs.auxiliary.disk.indexed
Class IndexedDiskElementDescriptor

java.lang.Object
  org.apache.jcs.auxiliary.disk.indexed.IndexedDiskElementDescriptor

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable

public class IndexedDiskElementDescriptor
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable

Disk objects are located by descriptor entries. These are saved on shutdown and loaded into memory on startup.

See Also:

Serialized Form

Field Summary

int	len Number of bytes the serialized form of the cache data takes.

Constructor Summary

IndexedDiskElementDescriptor()
Constructor for the DiskElementDescriptor object

IndexedDiskElementDescriptor(long pos, int len)
Constructs a usable disk element descriptor.

Method Summary

int	compareTo(java.lang.Object o) Compares based on length.
void	init(long pos, byte[] data) Set the offset (i.e. position, and the size of the element)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

len

public int len

Number of bytes the serialized form of the cache data takes.

Constructor Detail

IndexedDiskElementDescriptor

public IndexedDiskElementDescriptor()

Constructor for the DiskElementDescriptor object

IndexedDiskElementDescriptor

public IndexedDiskElementDescriptor(long pos,
                                    int len)

Constructs a usable disk element descriptor.

Parameters:

pos -

len -

Method Detail

init

public void init(long pos,
                 byte[] data)

Set the offset (i.e. position, and the size of the element)

Parameters:

pos -

data -

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

compareTo

public int compareTo(java.lang.Object o)

Compares based on length.

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

o - Object

Returns:

int