org.datanucleus.store

Interface Extent<T>

Type Parameters:

T - The type of the candidate

All Known Implementing Classes:

AbstractExtent, DefaultCandidateExtent

public interface Extent<T>

Extent of objects within DataNucleus. Represents objects of a type, optionally including the subclasses of that type.

Method Summary

Modifier and Type	Method and Description
void	close(Iterator<T> iterator) Close the specified iterator.
void	closeAll() Close all iterators and all resources for this extent.
Class<T>	getCandidateClass() Accessor for candidate class of the extent.
ExecutionContext	getExecutionContext()
FetchPlan	getFetchPlan()
boolean	hasSubclasses() Accessor for whether this extent includes subclasses.
Iterator<T>	iterator() Accessor for an iterator over the extent.

Method Detail

getCandidateClass

Class<T> getCandidateClass()

Accessor for candidate class of the extent.

Returns:

Candidate class

hasSubclasses

boolean hasSubclasses()

Accessor for whether this extent includes subclasses.

Returns:

Whether subclasses are contained

getExecutionContext

ExecutionContext getExecutionContext()

getFetchPlan

FetchPlan getFetchPlan()

iterator

Iterator<T> iterator()

Accessor for an iterator over the extent.

Returns:

The iterator

closeAll

void closeAll()

Close all iterators and all resources for this extent.

close

void close(Iterator<T> iterator)

Close the specified iterator.

Parameters:

iterator - The iterator