- /*
- * Copyright 2001-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*
- * $Id: AbsoluteIterator.java,v 1.11 2004/02/16 22:54:59 minchau 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();
- }
- }