org.objectweb.speedo.query.jdo
Class JDOExtent

java.lang.Object
  extended by org.objectweb.speedo.query.jdo.JDOExtent
All Implemented Interfaces:
Extent

public class JDOExtent
extends java.lang.Object
implements Extent


Constructor Summary
JDOExtent(java.lang.Class candidateClass, boolean hasSubclasses, JDOPOManagerItf pm, JormFactory jf, boolean prefetch, org.objectweb.util.monolog.api.Logger logger)
          create a new SpeedoExtent object, this object is not obtained by a call to 'new' by the client application, but by the PersistenceManager object with getExtent() method
 
Method Summary
 void close(java.util.Iterator it)
          Close an Iterator associated with this Extent instance.
 void closeAll()
          Close all Iterators associated with this Extent instance.
 java.lang.Class getCandidateClass()
          An Extent contains all instances of a particular Class in the data store; this method returns the Class of the instances
 FetchPlan getFetchPlan()
           
 PersistenceManager getPersistenceManager()
          An Extent is managed by a PersistenceManager; this method gives access to the owning PersistenceManager.
 boolean hasSubclasses()
          Returns whether this Extent was defined to contain subclasses.
 java.util.Iterator iterator()
          Returns an iterator over all the instances in the Extent.
 void setFetchPlan(FetchPlan fp)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JDOExtent

public JDOExtent(java.lang.Class candidateClass,
                 boolean hasSubclasses,
                 JDOPOManagerItf pm,
                 JormFactory jf,
                 boolean prefetch,
                 org.objectweb.util.monolog.api.Logger logger)
create a new SpeedoExtent object, this object is not obtained by a call to 'new' by the client application, but by the PersistenceManager object with getExtent() method

Parameters:
candidateClass -
hasSubclasses -
pm -
Method Detail

iterator

public java.util.Iterator iterator()
Returns an iterator over all the instances in the Extent.

Specified by:
iterator in interface Extent
Returns:
an iterator over all instances in the Extent

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 contain instances that are of a subclass type

getCandidateClass

public java.lang.Class getCandidateClass()
An Extent contains all instances of a particular Class in the data store; this method returns the Class of the instances

Specified by:
getCandidateClass in interface Extent
Returns:
the Class of instances of this Extent

getPersistenceManager

public PersistenceManager getPersistenceManager()
An Extent is managed by a PersistenceManager; this method gives access to the owning PersistenceManager.

Specified by:
getPersistenceManager in interface Extent
Returns:
the owning PersistenceManager

getFetchPlan

public FetchPlan getFetchPlan()
Specified by:
getFetchPlan in interface Extent

setFetchPlan

public void setFetchPlan(FetchPlan fp)

closeAll

public void closeAll()
Close all Iterators associated with this Extent instance. Iterators closed by this method will return false to hasNext() and will throw NoSuchElementException on next(). The Extent instance can still be used as a parameter of Query.setExtent, and to get an Iterator.

Specified by:
closeAll in interface Extent

close

public void close(java.util.Iterator it)
Close an Iterator associated with this Extent instance. Iterators closed by this method will return false to hasNext() and will throw NoSuchElementException on next(). The Extent instance can still be used as a parameter of Query.setExtent, and to get an Iterator.

Specified by:
close in interface Extent
Parameters:
it - an iterator obtained by the method iterator() on this Extent instance.