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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 org.jbind.xml.base.IHasLocation;
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import org.jbind.xml.core.cmp.IUseStateIterator;
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import org.jbind.xml.core.content.IContentDesc;
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import org.jbind.xml.core.content.IElemDesc;
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import org.jbind.xml.core.content.IElemRefOrDecl;
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import org.jbind.xml.core.content.IElemUseState;
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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 UseStateIterator implements IUseStateIterator {
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private IUseState myState = null;
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private IElemRefOrDecl mySubstitutionHead = null;
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public UseStateIterator(IContentDesc aContent) {
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myState = aContent.createUseState(null);
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}
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public IElemDesc getNextElemDesc(String aNamespace, String aName, IAnyType anOverloadingType, IHasLocation aHasLocation) throws XmlException {
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IElemUseState nextState = null;
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do {
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nextState = myState.getNextUseState(aNamespace, aName, anOverloadingType, aHasLocation);
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if (null == nextState) {
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if (myState.getUseCounter() < myState.getContentDesc().getRange().getMinOccurs()) {
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throw new XmlException(XmlMessages.cmUnexpectedElement(aNamespace + "::" + aName, aHasLocation));
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}
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IUseState parent = myState.getParent();
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if (null == parent) {
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throw new XmlException(XmlMessages.cmUnexpectedElement(aNamespace + "::" + aName, aHasLocation));
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}
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myState.reset();
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myState = parent;
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}
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} while (null == nextState);
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myState = nextState;
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mySubstitutionHead = nextState.getSubstitutionHead();
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return nextState.getElemDesc();
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}
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/**
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*
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*/
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public void isValidEnd(IHasLocation aHasLocation) throws XmlException {
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for (IUseState s = myState; s != null; s = s.getParent()) {
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s.isValidEnd(aHasLocation);
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}
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}
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public IElemRefOrDecl getSubstitutionHead() {
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return mySubstitutionHead;
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}
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}
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