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61 lines
1.9 KiB
61 lines
1.9 KiB
// kelondroRotateIterator.java
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// (C) 2007 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
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// first published 08.03.2007 on http://www.anomic.de
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package de.anomic.kelondro;
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public class kelondroRotateIterator implements kelondroCloneableIterator {
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kelondroCloneableIterator a, clone;
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Object modifier;
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public kelondroRotateIterator(kelondroCloneableIterator a, Object modifier) {
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// this works currently only for String-type key iterations
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this.a = a;
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this.modifier = modifier;
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this.clone = (kelondroCloneableIterator) a.clone(modifier);
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}
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public Object clone(Object modifier) {
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return new kelondroRotateIterator(a, modifier);
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}
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public boolean hasNext() {
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return true;
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}
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public Object next() {
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if (!(a.hasNext())) {
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a = (kelondroCloneableIterator) clone.clone(modifier);
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}
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return a.next();
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}
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public void remove() {
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a.remove();
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}
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}
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