de.ruedigermoeller.heapoff

Class FSTCompressed<T>

java.lang.Object

de.ruedigermoeller.heapoff.FSTCompressed<T>

Type Parameters:

T -

Direct Known Subclasses:

FST2ByteCompressed

public abstract class FSTCompressed<T>
extends Object

allows to temporary compress a serializable Object to reduce instance count on the heap. When the compressed object is accessed it is deserialized and a WeakReference holds the deserialized objects to avoid multiple deserialization in a loop. Currently only implementation is FST2ByteCompressed, real offheap (direct buffer) should be easy to do.

Constructor Summary

Constructors

Constructor and Description
FSTCompressed()

Method Summary

Modifier and Type	Method and Description
T	get()
abstract byte[]	getArray()
protected abstract FSTConfiguration	getConf()
abstract int	getLen()
abstract int	getOffset()
void	set(T object)
protected abstract void	storeArray(byte[] buffer, int written)

Methods inherited from class java.lang.Object

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

Constructor Detail

FSTCompressed

public FSTCompressed()

Method Detail

get

public T get()

set

public void set(T object)
         throws IOException

Throws:

IOException

storeArray

protected abstract void storeArray(byte[] buffer,
                                   int written)

getConf

protected abstract FSTConfiguration getConf()

getArray

public abstract byte[] getArray()

getLen

public abstract int getLen()

getOffset

public abstract int getOffset()