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

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 -