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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.instance.use;
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import java.util.Iterator;
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import org.jbind.xml.base.IHasLocation;
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import org.jbind.xml.core.content.IElemUseState;
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import org.jbind.xml.core.content.ISequenceDesc;
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import org.jbind.xml.core.content.IUseState;
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import org.jbind.xml.core.type.IAnyType;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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public class SequenceUseState extends GroupUseState {
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private Iterator myIterator = null;
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1933
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public SequenceUseState(ISequenceDesc aContent, IUseState aParent) {
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1933
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super(aContent, aParent);
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}
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protected void doReset() {
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super.doReset();
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myIterator = null;
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}
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1835
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public IElemUseState getNextUseState(String aNamespace, String aName, IAnyType anOverloadingType, IHasLocation aHasLocation) throws XmlException {
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1835
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IElemUseState res = null;
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boolean startedFromBeginning = false;
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while (((null != myIterator) || mayIncrementUseCounter()) && (res == null) && !startedFromBeginning) {
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if (null == myIterator) {
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1564
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myIterator = iterUseStates();
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1564
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startedFromBeginning = true;
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}
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1957
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while ((null == res) && myIterator.hasNext()) {
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2370
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IUseState us = (IUseState)myIterator.next();
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res = us.getNextUseState(aNamespace, aName, anOverloadingType, aHasLocation);
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2367
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if (null == res) {
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if (!us.getContentDesc().isEmptiable()) {
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if (startedFromBeginning) {
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// The iterated use state in the sequence must not be skipped.
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// -> The sequence use state can not return the next use state
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myIterator = null;
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break;
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} else {
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throw new XmlException(XmlMessages.cmSequenceGroupNotSatisfied(us.getContentDesc().getDesc(), getContentDesc().getLocation(), aHasLocation));
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}
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}
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}
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}
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if ((null != res) && startedFromBeginning) {
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1374
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incrementUseCounter();
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}
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if ((null != myIterator) && !myIterator.hasNext()) {
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// By setting the iterator to null the sequence use state is iterated
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// again when this method is called the next time (if the use counter may
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// be incremented).
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myIterator = null;
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}
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}
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return res;
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}
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protected void doIsValidEnd(IHasLocation aHasLocation) throws XmlException {
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StringBuffer descriptions = new StringBuffer();
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while ((null != myIterator) && myIterator.hasNext()) {
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IUseState us = (IUseState)myIterator.next();
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if (!us.getContentDesc().isEmptiable()) {
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if (descriptions.length() > 0) {
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0
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descriptions.append(", ");
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}
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descriptions.append(us.getContentDesc().getDesc());
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}
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}
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if (descriptions.length() > 0) {
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throw new XmlException(XmlMessages.cmSequenceGroupNotSatisfied(descriptions, getContentDesc().getLocation(), aHasLocation));
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}
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}
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}
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