Package org.nustaq.serialization.simpleapi

Class OnHeapCoder

java.lang.Object

org.nustaq.serialization.simpleapi.OnHeapCoder

All Implemented Interfaces:

FSTCoder

public class OnHeapCoder
extends Object
implements FSTCoder

Created by ruedi on 13.11.14. A coder writing fast binary encoding using unsafe to an underlying byte array ZERO COPY. Future version may choose to operate on DirectByteBuffer in case unsafe vanishes Note there is some copied code from OffHeaüCoder to avoid losing performance caused by polymorphic method dispatch. *********************************************************************** USE ONLY IF DEFAULTCODER (no unsafe) HAS BEEN PROVEN TO SLOW YOU DOWN. ***********************************************************************

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	buff
protected FSTConfiguration	conf
protected FSTObjectInput	in
protected FSTObjectOutput	out
protected HeapBytez	readTarget
protected HeapBytez	writeTarget

Constructor Summary

Constructors

Constructor	Description
OnHeapCoder()
OnHeapCoder(boolean sharedRefs)
OnHeapCoder(boolean sharedRefs, Class... preregister)
OnHeapCoder(Class... preregister)	throw

Method Summary

Modifier and Type	Method	Description
FSTConfiguration	getConf()
byte[]	toByteArray(Object o)
int	toByteArray(Object o, byte[] arr, int startIndex, int availableSize)	throws FSTBufferTooSmallExcpetion in case object does not fit into given range Zero Copy method
Object	toObject(byte[] arr)	decode object into byte array (at position null)
Object	toObject(byte[] arr, int startIndex, int availableSize)	throws FSTBufferTooSmallExcpetion in case object does not fit into given range

Methods inherited from class java.lang.Object

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

Field Details

conf

protected FSTConfiguration conf

writeTarget

protected HeapBytez writeTarget

readTarget

protected HeapBytez readTarget

out

protected FSTObjectOutput out

in

protected FSTObjectInput in

buff

protected byte[] buff

Constructor Details

OnHeapCoder

public OnHeapCoder()

OnHeapCoder

public OnHeapCoder(boolean sharedRefs)

OnHeapCoder

public OnHeapCoder(Class... preregister)

throw

Parameters:

preregister -

OnHeapCoder

public OnHeapCoder(boolean sharedRefs,
 Class... preregister)

Method Details

toByteArray

public int toByteArray(Object o,
 byte[] arr,
 int startIndex,
 int availableSize)

throws FSTBufferTooSmallExcpetion in case object does not fit into given range Zero Copy method

Specified by:

toByteArray in interface FSTCoder

Parameters:

o -

availableSize -

Returns:

number of bytes written to the memory region

Throws:

IOException

toByteArray

public byte[] toByteArray(Object o)

Specified by:

toByteArray in interface FSTCoder

getConf

public FSTConfiguration getConf()

Specified by:

getConf in interface FSTCoder

toObject

public Object toObject(byte[] arr,
 int startIndex,
 int availableSize)

throws FSTBufferTooSmallExcpetion in case object does not fit into given range

Specified by:

toObject in interface FSTCoder

Parameters:

arr -

startIndex -

availableSize -

Returns:

Throws:

Exception

toObject

public Object toObject(byte[] arr)

decode object into byte array (at position null)

Specified by:

toObject in interface FSTCoder

Parameters:

arr -

Returns:

Throws:

Exception