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Iterators (JBoss/Common API) - JBoss 4.0.1 sp1 common API Documentation 英文版文档

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org.jboss.util.collection
Class Iterators

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

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public final class Iterators

extends Object

A collection of Iterator and Enumeration utilities.

Version:

$Revision: 1.3 $

Author:

Jason Dillon

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Field Summary
static Iterator	EMPTY_ITERATOR           An empty Iterator

 

Constructor Summary

Iterators()

 

Method Summary
static Iterator	forEnumeration(Enumeration enum)           Return an Iterator wrapper for the given Enumeration
static Iterator	makeImmutable(Iterator iter)           Make an Iterator immutable
static Enumeration	makeSynchronized(Enumeration enum)           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 enum)

Return an Iterator wrapper for the given Enumeration

Parameters:

enum - Enumeration to wrap

Returns:

Enumeration wrapped as an Iterator

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toEnumeration

public static Enumeration toEnumeration(Iterator iter)

Return an Enumeration for the given Iterator.

Parameters:

iter - Iterator to wrap.

Returns:

Enumeration wrapper.

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makeImmutable

public static Iterator makeImmutable(Iterator iter)

Make an Iterator immutable

Parameters:

iter - Iterator to make immutable

Returns:

Imutable iterator

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makeSynchronized

public static Iterator makeSynchronized(Iterator iter)

Returns a synchronized version of the given Iterator.

Parameters:

iter - Iterator to synchronize.

Returns:

Synchronized Iterator.

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makeSynchronized

public static Enumeration makeSynchronized(Enumeration enum)

Returns a synchronized version of the given Enumeration.

Parameters:

enum - Enumeration to synchronize.

Returns:

Synchronized Enumeration.

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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.

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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.

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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.

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