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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
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* and therefore, elected the GPL Version 2 license, then the option applies
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* this work for additional information regarding copyright ownership.
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* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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/*
* $Id: AbsoluteIterator.java,v 1.10 2010-11-01 04:34:24 joehw Exp $
*/
package com.sun.org.apache.xalan.internal.xsltc.dom;
import com.sun.org.apache.xalan.internal.xsltc.runtime.BasisLibrary;
import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
import com.sun.org.apache.xml.internal.dtm.ref.DTMAxisIteratorBase;
import com.sun.org.apache.xml.internal.dtm.ref.DTMDefaultBase;
/**
* Absolute iterators ignore the node that is passed to setStartNode().
* Instead, they always start from the root node. The node passed to
* setStartNode() is not totally useless, though. It is needed to obtain the
* DOM mask, i.e. the index into the MultiDOM table that corresponds to the
* DOM "owning" the node.
*
* The DOM mask is cached, so successive calls to setStartNode() passing
* nodes from other DOMs will have no effect (i.e. this iterator cannot
* migrate between DOMs).
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
*/
public final class AbsoluteIterator extends DTMAxisIteratorBase {
/**
* Source for this iterator.
*/
private DTMAxisIterator _source;
public AbsoluteIterator(DTMAxisIterator source) {
_source = source;
// System.out.println("AI source = " + source + " this = " + this);
}
public void setRestartable(boolean isRestartable) {
_isRestartable = isRestartable;
_source.setRestartable(isRestartable);
}
public DTMAxisIterator setStartNode(int node) {
_startNode = DTMDefaultBase.ROOTNODE;
if (_isRestartable) {
_source.setStartNode(_startNode);
resetPosition();
}
return this;
}
public int next() {
return returnNode(_source.next());
}
public DTMAxisIterator cloneIterator() {
try {
final AbsoluteIterator clone = (AbsoluteIterator) super.clone();
clone._source = _source.cloneIterator(); // resets source
clone.resetPosition();
clone._isRestartable = false;
return clone;
}
catch (CloneNotSupportedException e) {
BasisLibrary.runTimeError(BasisLibrary.ITERATOR_CLONE_ERR,
e.toString());
return null;
}
}
public DTMAxisIterator reset() {
_source.reset();
return resetPosition();
}
public void setMark() {
_source.setMark();
}
public void gotoMark() {
_source.gotoMark();
}
}