CollectionUtil (ArgoUML Javadoc for internal use)

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org.argouml.util
Class CollectionUtil

java.lang.Object
  org.argouml.util.CollectionUtil

public final class CollectionUtil
extends Object

Some helper methods for dealing with collections.

Constructor Summary
`private`	`CollectionUtil()` Can't construct a utility.

Method Summary
`static Object`	`getFirstItem(Collection c)` Return the first item from a collection using the most efficient method possible.
`static Object`	`getFirstItemOrNull(Collection c)` Return the first item from a collection using the most efficient method possible.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionUtil

private CollectionUtil()

Can't construct a utility.

Method Detail

getFirstItem

public static Object getFirstItem(Collection c)

Return the first item from a collection using the most efficient method possible.

Parameters:: c - The Collection.
Returns:: the first element of a Collection.
Throws:: NoSuchElementException - if the collection is empty.

getFirstItemOrNull

public static Object getFirstItemOrNull(Collection c)

Return the first item from a collection using the most efficient method possible. Returns null for an empty collection.

Parameters:: c - The Collection.
Returns:: the first element of a Collection.