Package net.sourceforge.pmd.util

Class IteratorUtil.AbstractIterator<T>

java.lang.Object

net.sourceforge.pmd.util.IteratorUtil.AbstractIterator<T>

Type Parameters:

T - the type of the elements

All Implemented Interfaces:

Iterator<T>

Direct Known Subclasses:

IteratorUtil.AbstractPausingIterator

Enclosing class:

IteratorUtil

public abstract static class IteratorUtil.AbstractIterator<T>
extends Object
implements Iterator<T>

Note, that this iterator doesn't support the remove operation.

Constructor Summary

Constructors

Constructor	Description
AbstractIterator()

Method Summary

Modifier and Type	Method	Description
protected abstract void	computeNext()	Compute the next element.
protected final void	done()
boolean	hasNext()
T	next()
final void	remove()	This implementation throws an instance of UnsupportedOperationException and performs no other action.
protected final void	setNext(T t)

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

Constructor Details

AbstractIterator

public AbstractIterator()

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

setNext

protected final void setNext(T t)

done

protected final void done()

computeNext

protected abstract void computeNext()

Compute the next element. Implementations must call either done() or setNext(Object) exactly once.

remove

public final void remove()

This implementation throws an instance of UnsupportedOperationException and performs no other action.

Specified by:

remove in interface Iterator<T>

Throws:

UnsupportedOperationException - always, as the remove operation is not supported by this iterator