com.databasesandlife.util

Class ResourceClosingIterator<T>

java.lang.Object

com.databasesandlife.util.ResourceClosingIterator<T>

All Implemented Interfaces:

Iterator<T>

public class ResourceClosingIterator<T>
extends Object
implements Iterator<T>

Wraps an Iterator, such that as soon as the iterator's hasNext method returns false, user-supplied code is executed. This can be used for closing JDBC Connections, Statements, etc.

Author:

This source is copyright Adrian Smith and licensed under the LGPL 3.

See Also:

Project on GitHub

Constructor Summary

Constructors

Constructor and Description
ResourceClosingIterator(Runnable onClose, Iterator<T> source)

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
T	next()
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

ResourceClosingIterator

public ResourceClosingIterator(Runnable onClose,
                               Iterator<T> source)

Parameters:

onClose - to be run when the iterator's hasNext method returns false

source - the iterator to supply the data which will be returned from this iterator

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Specified by:

remove in interface Iterator<T>