org.objectweb.medor.eval.prefetch.lib
Class DummyPrefetchBuffer

java.lang.Object
  org.objectweb.medor.eval.prefetch.lib.DummyPrefetchBuffer

All Implemented Interfaces:

PrefetchBuffer

public class DummyPrefetchBuffer

extends java.lang.Object

implements PrefetchBuffer

This class represents dummy PrefetchBuffers in the case the transactional context is null.

Author:

A. Lefebvre

Constructor Summary

DummyPrefetchBuffer()

Method Summary

void	addPrefetchTuple() Adds to this cache a prefetched tuple that is the one which currently traversed within the associated tuple collection.
void	close()
Tuple	getTuple(java.lang.Object index)
TupleCollection	getTupleCollection(java.lang.Object index) Returns the tuple collection positionned on the tuple identified by index.
boolean	isClosed()
void	setTupleCollection(TupleCollection tc) Associates a tuple collection to this PrefetchBuffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyPrefetchBuffer

public DummyPrefetchBuffer()

Method Detail

addPrefetchTuple

public void addPrefetchTuple()
                      throws MedorException

Description copied from interface: PrefetchBuffer

Adds to this cache a prefetched tuple that is the one which currently traversed within the associated tuple collection.

Specified by:

addPrefetchTuple in interface PrefetchBuffer

Throws:

MedorException

setTupleCollection

public void setTupleCollection(TupleCollection tc)
                        throws MedorException

Description copied from interface: PrefetchBuffer

Associates a tuple collection to this PrefetchBuffer. It should contain the tuples that will be registered with the prefetch structure.

Specified by:

setTupleCollection in interface PrefetchBuffer

Parameters:

tc - The associated tuple collection.

Throws:

MedorException

close

public void close()
           throws MedorException

Specified by:

close in interface PrefetchBuffer

Throws:

MedorException

isClosed

public boolean isClosed()

Specified by:

isClosed in interface PrefetchBuffer

getTuple

public Tuple getTuple(java.lang.Object index)
               throws MedorException

Specified by:

getTuple in interface PrefetchBuffer

Throws:

MedorException

getTupleCollection

public TupleCollection getTupleCollection(java.lang.Object index)
                                   throws MedorException

Description copied from interface: PrefetchBuffer

Returns the tuple collection positionned on the tuple identified by index.

Specified by:

getTupleCollection in interface PrefetchBuffer

Throws:

MedorException