Package eu.bandm.tools.util.java

Interface Iterators.PushbackIterator<A>

Type Parameters:

A - the element type

All Superinterfaces:

Iterator<A>, Iterators.LookaheadIterator<A>

Enclosing class:

Iterators

public static interface Iterators.PushbackIterator<A>
extends Iterators.LookaheadIterator<A>

Iterators that can push an element back into the sequence.

Method Summary

Modifier and Type	Method	Description
void	pushback(A elem)	Push an element back into the sequence.

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Methods inherited from interface eu.bandm.tools.util.java.Iterators.LookaheadIterator

lookahead

Method Details

pushback

void pushback(A elem)

Push an element back into the sequence.

This method may be called either when the iterator is in its initial state, or after next and/or remove have been called. It may not be called after lookahead, or twice in a row.

Conversely, pushed back elements may not be removed.

Parameters:

elem - the element to push back

Throws:

IllegalStateException - if the method may not be called just now