org.jpox.store
Class AbstractExtent

java.lang.Object
  org.jpox.store.AbstractExtent

All Implemented Interfaces:

Extent

public abstract class AbstractExtent
extends java.lang.Object
implements Extent

Abstract representation of a JDO Extent. Suitable for use with all datastores.

Version:

$Revision: 1.5 $

Field Summary

protected java.lang.Class	candidateClass The candidate class.
protected AbstractClassMetaData	cmd ClassMetaData for the candidate class.
protected static Localiser	LOCALISER Localised messages source
protected ObjectManager	om ObjectManager for the Extent.
protected StoreManager	storeMgr Manager for the Store.
protected boolean	subclasses Whether to include subclasses.

Constructor Summary

AbstractExtent(ObjectManager om, java.lang.Class cls, boolean subclasses, AbstractClassMetaData cmd)
Constructor.

Method Summary

java.lang.Class	getCandidateClass() Accessor for the class of instances in this Extent.
ObjectManager	getObjectManager() Accessor for the owning PersistenceManager.
boolean	hasSubclasses() Returns whether this Extent was defined to contain subclasses.
java.lang.String	toString() Stringifier method.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jpox.store.Extent

close, closeAll, getFetchPlan, iterator

Field Detail

LOCALISER

protected static final Localiser LOCALISER

Localised messages source

om

protected final ObjectManager om

ObjectManager for the Extent.

candidateClass

protected final java.lang.Class candidateClass

The candidate class. We store the class since we need to retain it for class loading.

subclasses

protected final boolean subclasses

Whether to include subclasses.

cmd

protected final AbstractClassMetaData cmd

ClassMetaData for the candidate class.

storeMgr

protected final StoreManager storeMgr

Manager for the Store.

Constructor Detail

AbstractExtent

public AbstractExtent(ObjectManager om,
                      java.lang.Class cls,
                      boolean subclasses,
                      AbstractClassMetaData cmd)

Constructor.

Parameters:

om - Object Manager

cls - candidate class

subclasses - Whether to include subclasses

cmd - MetaData for the candidate class

Method Detail

hasSubclasses

public boolean hasSubclasses()

Returns whether this Extent was defined to contain subclasses.

Specified by:

hasSubclasses in interface Extent

Returns:

true if this Extent was defined to include subclasses.

getCandidateClass

public java.lang.Class getCandidateClass()

Accessor for the class of instances in this Extent.

Specified by:

getCandidateClass in interface Extent

Returns:

the Class of instances of this Extent

getObjectManager

public ObjectManager getObjectManager()

Accessor for the owning PersistenceManager.

Specified by:

getObjectManager in interface Extent

Returns:

the owning PersistenceManager

toString

public java.lang.String toString()

Stringifier method.

Overrides:

toString in class java.lang.Object

Returns:

Stringified form of this object