polyglot.util

Class ConcatenatedIterator<T>

java.lang.Object

polyglot.util.ConcatenatedIterator<T>

All Implemented Interfaces:

java.util.Iterator<T>

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

ConcatenatedIterator Overview: This iterator wraps other iterators, and returns all their elements in order. Does not support Remove.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Iterator<T>[]	backing_iterators
protected int	index
protected T	next_item

Constructor Summary

Constructors

Constructor and Description
ConcatenatedIterator(java.util.Collection<java.util.Iterator<T>> iters) Constructs a new ConcatenatedIterator which yields every element, in order, of every element of the collection iters, in order.
ConcatenatedIterator(java.util.Iterator<T>... iters) Constructs a new ConcatenatedIterator which yields every element, in order, of every element of the array iters, in order.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	hasNext()
T	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

next_item

protected T next_item

backing_iterators

protected java.util.Iterator<T>[] backing_iterators

index

protected int index

Constructor Detail

ConcatenatedIterator

@SafeVarargs
public ConcatenatedIterator(java.util.Iterator<T>... iters)

Constructs a new ConcatenatedIterator which yields every element, in order, of every element of the array iters, in order.

ConcatenatedIterator

public ConcatenatedIterator(java.util.Collection<java.util.Iterator<T>> iters)

Constructs a new ConcatenatedIterator which yields every element, in order, of every element of the collection iters, in order.

Method Detail

next

public T next()

Specified by:

next in interface java.util.Iterator<T>

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<T>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<T>