Package org.kuali.rice.krad.util

Class TransactionalServiceUtils

java.lang.Object

org.kuali.rice.krad.util.TransactionalServiceUtils

public final class TransactionalServiceUtils
extends Object

This class provides utility methods to support the operation of transactional services

Method Summary

Modifier and Type	Method	Description
static <E> Iterator<E>	copyToExternallyUsuableIterator(Iterator<E> iter)	Copys iterators so that they may be used outside of this class.
static void	exhaustIterator(Iterator<?> iterator)	Exhausts (i.e.
static <E> E	retrieveFirstAndExhaustIterator(Iterator<E> iterator)	Returns the first element and exhausts an iterator

Methods inherited from class java.lang.Object

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

Method Detail

copyToExternallyUsuableIterator

public static <E> Iterator<E> copyToExternallyUsuableIterator(Iterator<E> iter)

Copys iterators so that they may be used outside of this class. Often, the DAO may return iterators that may not be used outside of this class because the transaction/ connection may be automatically closed by Spring. This method copies all of the elements in the OJB backed iterators into list-based iterators by placing the returned BOs into a list

Parameters:

iter - an OJB backed iterator to copy

Returns:

an Iterator that may be used outside of this class

retrieveFirstAndExhaustIterator

public static <E> E retrieveFirstAndExhaustIterator(Iterator<E> iterator)

Returns the first element and exhausts an iterator

Type Parameters:

E - the type of elements in the iterator

Parameters:

iterator - the iterator to exhaust

Returns:

the first element of the iterator; null if the iterator's empty

exhaustIterator

public static void exhaustIterator(Iterator<?> iterator)

Exhausts (i.e. complete iterates through) an iterator

Parameters:

iterator -