net.sf.composite.util
Class ContainerUtils

java.lang.Object
  net.sf.composite.util.ContainerUtils

public class ContainerUtils
extends java.lang.Object

Utility functions for working with container-like objects such as Collections and arrays.

Since:

Mar 11, 2005

Author:

Matt Sgarlata

Constructor Summary

ContainerUtils()

Method Summary

static java.util.List	getElementsOfType(java.util.Collection collection, java.lang.Class type)
static java.lang.Object[]	getElementsOfType(java.lang.Object[] array, java.lang.Class type)
static java.util.Iterator	getIterator(java.lang.Object container) Returns an iterator over the contents of the given container.
static boolean	hasElementOfType(java.lang.Object container, java.lang.Class type)

Methods inherited from class java.lang.Object

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

Constructor Detail

ContainerUtils

public ContainerUtils()

Method Detail

getElementsOfType

public static java.lang.Object[] getElementsOfType(java.lang.Object[] array,
                                                   java.lang.Class type)

getElementsOfType

public static java.util.List getElementsOfType(java.util.Collection collection,
                                               java.lang.Class type)

hasElementOfType

public static boolean hasElementOfType(java.lang.Object container,
                                       java.lang.Class type)

getIterator

public static java.util.Iterator getIterator(java.lang.Object container)

Returns an iterator over the contents of the given container.

Parameters:

container - the container

Returns:

null, if container is null or
an iterator over the contents of the container, otherwise

Throws:

java.lang.IllegalArgumentException - if an iterator over the contents of the container could not be constructed