org.apache.jcs.auxiliary.disk.block
Class BlockDiskElementDescriptor<K extends Serializable>

java.lang.Object
  org.apache.jcs.auxiliary.disk.block.BlockDiskElementDescriptor<K>

All Implemented Interfaces:

Externalizable, Serializable

public class BlockDiskElementDescriptor<K extends Serializable>
extends Object
implements Serializable, Externalizable

This represents an element on disk. This is used when we persist the keys. We only store the block addresses in memory. We don't need the length here, since all the blocks are the same size receyle bin.

Author:

Aaron Smuts

See Also:

Serialized Form

BlockDiskElementDescriptor

public BlockDiskElementDescriptor()

setKey

public void setKey(K key)

Parameters:

key - The key to set.

getKey

public K getKey()

Returns:

Returns the key.

setBlocks

public void setBlocks(int[] blocks)

Parameters:

blocks - The blocks to set.

getBlocks

public int[] getBlocks()

This holds the block numbers. An item my be dispersed between multiple blocks.

Returns:

Returns the blocks.

toString

public String toString()

For debugging.

Overrides:

toString in class Object

Returns:

Info on the descriptor.

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Saves on reflection.

(non-Javadoc)

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

See Also:

Externalizable.readExternal(java.io.ObjectInput)

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Saves on reflection.

(non-Javadoc)

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

See Also:

Externalizable.writeExternal(java.io.ObjectOutput)