com.solarmetric.rd.kodo.runtime
Class ExtentImpl

java.lang.Object
  |
  +--com.solarmetric.rd.kodo.runtime.ExtentImpl

All Implemented Interfaces:

javax.jdo.Extent

public abstract class ExtentImpl

extends java.lang.Object

implements javax.jdo.Extent

Abstract Extent implementation that takes care of everything but creating and closing iterators.

Constructor Summary

ExtentImpl(com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm, java.lang.Class type, boolean subs)
Constructor.

Method Summary

void	close(java.util.Iterator itr)
void	closeAll()
protected void	closeIterator(java.util.Iterator iter) Close the given iterator.
java.lang.Class	getCandidateClass()
int	getFetchBatchSize() Return the fetch batch size for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchBatchSize setting.
int	getFetchThreshold() Return the fetch threshold for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchThreshold setting.
protected abstract java.util.Iterator	getIterator() Return an iterator over this extent.
javax.jdo.PersistenceManager	getPersistenceManager()
boolean	hasSubclasses()
java.util.Iterator	iterator()
java.util.List	list() API extension.
void	setFetchBatchSize(int fetchBatchSize) Set the fetch batch size for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchBatchSize setting.
void	setFetchThreshold(int fetchThreshold) Set the fetch threshold for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchThreshold setting.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtentImpl

public ExtentImpl(com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm,
                  java.lang.Class type,
                  boolean subs)

Constructor.

Parameters:

pm - the owning persistence manager

type - the candidate class

subs - whether subclasses are included in the extent

Method Detail

getFetchThreshold

public int getFetchThreshold()

Return the fetch threshold for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchThreshold setting.

setFetchThreshold

public void setFetchThreshold(int fetchThreshold)

Set the fetch threshold for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchThreshold setting.

getFetchBatchSize

public int getFetchBatchSize()

Return the fetch batch size for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchBatchSize setting. Note that this property will be ignored under some data stores.

setFetchBatchSize

public void setFetchBatchSize(int fetchBatchSize)

Set the fetch batch size for large result set support on this extent; defaults to the com.solarmetric.kodo.FetchBatchSize setting. Note that this property will be ignored under some data stores.

list

public java.util.List list()

API extension. Returns a list of all objects represented by this extent. This method creates a List by traversing the entire iterator returned by a call to iterator(). This means that Collection.size() will work correctly, but if the extent represents a large data set, this method may be quite slow and may consume quite a bit of memory.

iterator

public java.util.Iterator iterator()

Specified by:

iterator in interface javax.jdo.Extent

getPersistenceManager

public javax.jdo.PersistenceManager getPersistenceManager()

Specified by:

getPersistenceManager in interface javax.jdo.Extent

getCandidateClass

public java.lang.Class getCandidateClass()

Specified by:

getCandidateClass in interface javax.jdo.Extent

hasSubclasses

public boolean hasSubclasses()

Specified by:

hasSubclasses in interface javax.jdo.Extent

closeAll

public void closeAll()

Specified by:

closeAll in interface javax.jdo.Extent

close

public void close(java.util.Iterator itr)

Specified by:

close in interface javax.jdo.Extent

getIterator

protected abstract java.util.Iterator getIterator()

Return an iterator over this extent.

closeIterator

protected void closeIterator(java.util.Iterator iter)

Close the given iterator. Does nothing by default.