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/*******************************************************************************
* Copyright (c) 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.html.core.internal.contentmodel;
import org.eclipse.wst.xml.core.internal.contentmodel.CMGroup;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNodeList;
/**
*/
class CMGroupImpl extends CMContentImpl implements CMGroup {
private int operator = CMGroup.SEQUENCE;
private CMNodeListImpl children = null;
/**
* CMGroupImpl constructor comment.
*/
public CMGroupImpl(int op, int minOccur, int maxOccur) {
super(null, minOccur, maxOccur);
switch (op) {
case CMGroup.ALL :
case CMGroup.CHOICE :
case CMGroup.SEQUENCE :
operator = op;
break;
default :
// should warn.
break;
}
}
/**
* @return org.eclipse.wst.xml.core.internal.contentmodel.CMNode
* @param org.eclipse.wst.xml.core.internal.contentmodel.CMNode
*/
protected CMNode appendChild(CMNode child) {
if (child == null)
return null;
if (children == null)
children = new CMNodeListImpl();
return children.appendNode(child);
}
/**
* @return org.eclipse.wst.xml.core.internal.contentmodel.CMNodeList
*/
public CMNodeList getChildNodes() {
return children;
}
/**
* getNodeType method
* @return int
*
* Returns one of :
* ELEMENT_DECLARATION, ATTRIBUTE_DECLARATION, GROUP, ENTITY_DECLARATION.
*/
public int getNodeType() {
return CMNode.GROUP;
}
/**
* getOperation method
* @return int
*
* Returns one of :
* ALONE (a), SEQUENCE (a,b), CHOICE (a|b), ALL (a&b).
*/
public int getOperator() {
return operator;
}
}
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