jadex.commons.collection

Class MultiIterator<T>

java.lang.Object

jadex.commons.collection.MultiIterator<T>

All Implemented Interfaces:

java.util.Iterator<T>

public class MultiIterator<T>
extends java.lang.Object
implements java.util.Iterator<T>

Iterator that operates over multiple collections.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	collcnt The counter for the collection.
protected java.util.Iterator<T>	curit The current iterator.
protected java.util.List<java.util.Iterator<T>>	its The data collections.

Constructor Summary

Constructors

Constructor and Description
MultiIterator() Create a new MultiCollectionIterator.

Method Summary

Modifier and Type	Method and Description
void	addIterator(java.util.Iterator<T> it) Add a collection.
protected java.util.Iterator<T>	getCurrentIterator() Get the current iterator.
boolean	hasNext() Returns true if the iteration has more elements.
T	next() Returns the next element in the iteration.
void	remove() Removes from the underlying collection the last element returned by this iterator (optional operation).

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

its

protected java.util.List<java.util.Iterator<T>> its

The data collections.

collcnt

protected int collcnt

The counter for the collection.

curit

protected java.util.Iterator<T> curit

The current iterator.

Constructor Detail

MultiIterator

public MultiIterator()

Create a new MultiCollectionIterator.

Method Detail

addIterator

public void addIterator(java.util.Iterator<T> it)

Add a collection.

Parameters:

coll - The collection.

hasNext

public boolean hasNext()

Returns true if the iteration has more elements. (In other words, returns true if next() would return an element rather than throwing an exception.)

Specified by:

hasNext in interface java.util.Iterator<T>

Returns:

true if the iteration has more elements

next

public T next()

Returns the next element in the iteration.

Specified by:

next in interface java.util.Iterator<T>

Returns:

the next element in the iteration

Throws:

java.util.NoSuchElementException - if the iteration has no more elements

remove

public void remove()

Removes from the underlying collection the last element returned by this iterator (optional operation). This method can be called only once per call to next(). The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.

Specified by:

remove in interface java.util.Iterator<T>

Throws:

java.lang.UnsupportedOperationException - if the remove operation is not supported by this iterator

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method

getCurrentIterator

protected java.util.Iterator<T> getCurrentIterator()

Get the current iterator.