org.jboss.util.collection
Class Iterators

java.lang.Object
  org.jboss.util.collection.Iterators

public final class Iterators
extends Object

A collection of Iterator and Enumeration utilities.

Version:

$Revision: 1.3.6.2 $

Author:

Jason Dillon

Field Summary

static Iterator

EMPTY_ITERATOR An empty Iterator

Constructor Summary

Iterators()

Method Summary

static Iterator	forEnumeration(Enumeration e) Return an Iterator wrapper for the given Enumeration
static Iterator	makeImmutable(Iterator iter) Make an Iterator immutable
static Enumeration	makeSynchronized(Enumeration e) Returns a synchronized version of the given Enumeration.
static Iterator	makeSynchronized(Iterator iter) Returns a synchronized version of the given Iterator.
static Enumeration	toEnumeration(Iterator iter) Return an Enumeration for the given Iterator.
static String	toString(Iterator iter) Return a comma delimited string representation of all of the elements in the given Iterator.
static String	toString(Iterator iter, String delim) Return a delimited string representation of all of the elements in the given Iterator.
static Iterator	union(Iterator[] iters) Returns an Iterator containing the union of all of the elements in the given iterator array.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_ITERATOR

public static final Iterator EMPTY_ITERATOR

An empty Iterator

Constructor Detail

Iterators

public Iterators()

Method Detail

forEnumeration

public static Iterator forEnumeration(Enumeration e)

Return an Iterator wrapper for the given Enumeration

Parameters:

enum - Enumeration to wrap

Returns:

Enumeration wrapped as an Iterator

toEnumeration

public static Enumeration toEnumeration(Iterator iter)

Return an Enumeration for the given Iterator.

Parameters:

iter - Iterator to wrap.

Returns:

Enumeration wrapper.

makeImmutable

public static Iterator makeImmutable(Iterator iter)

Make an Iterator immutable

Parameters:

iter - Iterator to make immutable

Returns:

Imutable iterator

makeSynchronized

public static Iterator makeSynchronized(Iterator iter)

Returns a synchronized version of the given Iterator.

Parameters:

iter - Iterator to synchronize.

Returns:

Synchronized Iterator.

makeSynchronized

public static Enumeration makeSynchronized(Enumeration e)

Returns a synchronized version of the given Enumeration.

Parameters:

enum - Enumeration to synchronize.

Returns:

Synchronized Enumeration.

union

public static Iterator union(Iterator[] iters)

Returns an Iterator containing the union of all of the elements in the given iterator array.

Parameters:

iters - Array of iterators.

Returns:

Iterator containing the union.

toString

public static String toString(Iterator iter,
                              String delim)

Return a delimited string representation of all of the elements in the given Iterator.

Parameters:

iter - Iterator to convert to string.

delim - Elemement delimiter.

Returns:

Delimited string value.

toString

public static String toString(Iterator iter)

Return a comma delimited string representation of all of the elements in the given Iterator.

Parameters:

iter - Iterator to convert to string.

Returns:

Delimited string value.