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/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.xsom.impl;

import com.sun.xml.xsom.XSElementDecl;
import com.sun.xml.xsom.XSModelGroup;
import com.sun.xml.xsom.XSModelGroupDecl;
import com.sun.xml.xsom.XSTerm;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.impl.parser.SchemaDocumentImpl;
import com.sun.xml.xsom.visitor.XSFunction;
import com.sun.xml.xsom.visitor.XSTermFunction;
import com.sun.xml.xsom.visitor.XSTermFunctionWithParam;
import com.sun.xml.xsom.visitor.XSTermVisitor;
import com.sun.xml.xsom.visitor.XSVisitor;
import org.xml.sax.Locator;

public class ModelGroupDeclImpl extends DeclarationImpl implements XSModelGroupDecl, Ref.Term
{
    public ModelGroupDeclImpl( SchemaDocumentImpl owner,
        AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl _fa,
        String _targetNamespace, String _name,
        ModelGroupImpl _modelGroup ) {
        
        super(owner,_annon,_loc,_fa,_targetNamespace,_name,false);
        this.modelGroup = _modelGroup;
        
        if(modelGroup==null)
            throw new IllegalArgumentException();
    }
    
    private final ModelGroupImpl modelGroup;
    public XSModelGroup getModelGroup() { return modelGroup; }
    
    /**
     * This component is a redefinition of "oldMG". Fix up the internal state
     * as such. 
     */
    public void redefine( ModelGroupDeclImpl oldMG ) {
        modelGroup.redefine(oldMG);
    }
    
    
    public void visit( XSVisitor visitor ) {
        visitor.modelGroupDecl(this);
    }
    public void visit( XSTermVisitor visitor ) {
        visitor.modelGroupDecl(this);
    }
    public Object apply( XSTermFunction function ) {
        return function.modelGroupDecl(this);
    }

    public  T apply(XSTermFunctionWithParam function, P param) {
        return function.modelGroupDecl(this,param);
    }

    public Object apply( XSFunction function ) {
        return function.modelGroupDecl(this);
    }


    public boolean isWildcard()                 { return false; }
    public boolean isModelGroupDecl()           { return true; }
    public boolean isModelGroup()               { return false; }
    public boolean isElementDecl()              { return false; }

    public XSWildcard asWildcard()              { return null; }
    public XSModelGroupDecl asModelGroupDecl()  { return this; }
    public XSModelGroup asModelGroup()          { return null; }
    public XSElementDecl asElementDecl()        { return null; }


    // Ref.Term implementation
    public XSTerm getTerm() { return this; }
}