Class Iterables

java.lang.Object

org.codehaus.commons.compiler.util.iterator.Iterables

public final class Iterables
extends Object

Utility method around Iterables and Iterators.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static enum	Iterables.State

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Iterables()

Method Summary

Modifier and Type	Method	Description
static <T> Iterable<T>	filter(Iterable<? extends T> delegate, Predicate<? super T> predicate)
static <T> Iterator<T>	filter(Iterator<? extends T> delegate, Predicate<? super T> predicate)
static <T> Iterable<T>	filter(T[] delegate, Predicate<? super T> predicate)
static <T> Iterable<T>	filterByClass(Iterable<?> delegate, Class<T> qualifyingClass)
static <T> Iterable<T>	filterByClass(Object[] delegate, Class<T> qualifyingClass)
static <T> Iterator<T>	filterByClass(Iterator<?> delegate, Class<T> qualifyingClass)
static <T> T[]	toArray(Iterable<T> delegate, Class<T> elementType)
static <T> T[]	toArray(Iterator<T> delegate, Class<T> componentType)

Methods inherited from class Object

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

Constructor Details

Iterables

private Iterables()

Method Details

filterByClass

public static <T> Iterable<T> filterByClass(Object[] delegate,
 Class<T> qualifyingClass)

Returns:

An Iterable that filters the delegate's elements by base class

filterByClass

public static <T> Iterable<T> filterByClass(Iterable<?> delegate,
 Class<T> qualifyingClass)

Returns:

An Iterable that filters the delegate's elements by base class

filterByClass

public static <T> Iterator<T> filterByClass(Iterator<?> delegate,
 Class<T> qualifyingClass)

Returns:

An Iterator that filters the delegate's products by base class

filter

public static <T> Iterable<T> filter(T[] delegate,
 Predicate<? super T> predicate)

Returns:

An Iterable that discriminates the delegate's elements with the predicate

filter

public static <T> Iterable<T> filter(Iterable<? extends T> delegate,
 Predicate<? super T> predicate)

Returns:

An Iterable that discriminates the delegate's elements with the predicate

filter

public static <T> Iterator<T> filter(Iterator<? extends T> delegate,
 Predicate<? super T> predicate)

Returns:

An Iterator that discriminates the delegate's products with the predicate

toArray

public static <T> T[] toArray(Iterable<T> delegate,
 Class<T> elementType)

Returns:

All elements of the delegate

toArray

public static <T> T[] toArray(Iterator<T> delegate,
 Class<T> componentType)

Returns:

All products of the delegate