kodo.runtime
Class ExtentImpl

java.lang.Object
  |
  +--kodo.runtime.ExtentImpl

All Implemented Interfaces:

Extent, KodoExtent

Direct Known Subclasses:

XMLStoreManager.XMLExtent

public abstract class ExtentImpl

extends Object

implements KodoExtent

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

Constructor Summary

ExtentImpl(KodoPersistenceManager pm, Class type, boolean subs)
Constructor.

Method Summary

void	close(Iterator itr)
void	closeAll()
Class	getCandidateClass()
FetchConfiguration	getFetchConfiguration() Return the (mutable) fetch configuration for this extent.
boolean	getIgnoreCache() Whether this extent will ignore the persistence manager cache.
PersistenceManager	getPersistenceManager()
protected abstract ResultObjectProvider	getResultObjectProvider(ClassMetaData meta) Return a result object provider for the given type.
boolean	hasSubclasses()
Iterator	iterator()
List	list() Returns a list of all objects represented by this extent.
void	setIgnoreCache(boolean ignoreCache) Whether this extent will ignore the persistence manager cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtentImpl

public ExtentImpl(KodoPersistenceManager pm,
                  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

getFetchConfiguration

public FetchConfiguration getFetchConfiguration()

Description copied from interface: KodoExtent

Return the (mutable) fetch configuration for this extent.

Specified by:

getFetchConfiguration in interface KodoExtent

getIgnoreCache

public boolean getIgnoreCache()

Description copied from interface: KodoExtent

Whether this extent will ignore the persistence manager cache.

Specified by:

getIgnoreCache in interface KodoExtent

setIgnoreCache

public void setIgnoreCache(boolean ignoreCache)

Description copied from interface: KodoExtent

Whether this extent will ignore the persistence manager cache.

Specified by:

setIgnoreCache in interface KodoExtent

list

public List list()

Description copied from interface: KodoExtent

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 Extent.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.

Specified by:

list in interface KodoExtent

iterator

public Iterator iterator()

Specified by:

iterator in interface Extent

getPersistenceManager

public PersistenceManager getPersistenceManager()

Specified by:

getPersistenceManager in interface Extent

getCandidateClass

public Class getCandidateClass()

Specified by:

getCandidateClass in interface Extent

hasSubclasses

public boolean hasSubclasses()

Specified by:

hasSubclasses in interface Extent

closeAll

public void closeAll()

Specified by:

closeAll in interface Extent

close

public void close(Iterator itr)

Specified by:

close in interface Extent

getResultObjectProvider

protected abstract ResultObjectProvider getResultObjectProvider(ClassMetaData meta)

Return a result object provider for the given type.