code: /*
   * The contents of this file are subject to the terms
   * of the Common Development and Distribution License
   * (the "License").  You may not use this file except
   * in compliance with the License.
   * 
   * You can obtain a copy of the license at
   * https://jwsdp.dev.java.net/CDDLv1.0.html
   * See the License for the specific language governing
   * permissions and limitations under the License.
   * 
   * When distributing Covered Code, include this CDDL
   * HEADER in each file and include the License file at
   * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
   * add the following below this CDDL HEADER, with the
   * fields enclosed by brackets "[]" replaced with your
   * own identifying information: Portions Copyright [yyyy]
   * [name of copyright owner]
   */
  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.XSParticle;
  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;
  
  import java.util.Arrays;
  import java.util.Iterator;
  
  public class ModelGroupImpl extends ComponentImpl implements XSModelGroup, Ref.Term
  {
      public ModelGroupImpl( SchemaDocumentImpl owner, AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl _fa,
                             Compositor _compositor, ParticleImpl[] _children ) {
  
          super(owner,_annon,_loc,_fa);
          this.compositor = _compositor;
          this.children = _children;
  
          if(compositor==null)
              throw new IllegalArgumentException();
          for( int i=children.length-1; i>=0; i-- )
              if(children[i]==null)
                  throw new IllegalArgumentException();
      }
  
      private final ParticleImpl[] children;
      public ParticleImpl getChild( int idx ) { return children[idx]; }
      public int getSize() { return children.length; }
  
      public ParticleImpl[] getChildren() { return children; }
  
  
      private final Compositor compositor;
      public Compositor getCompositor() { return compositor; }
  
  
      public void redefine(ModelGroupDeclImpl oldMG) {
          for (ParticleImpl p : children)
              p.redefine(oldMG);
      }
  
      public Iterator<XSParticle> iterator() {
          return Arrays.asList((XSParticle[])children).iterator();
      }
  
  
      public boolean isWildcard()                 { return false; }
      public boolean isModelGroupDecl()           { return false; }
      public boolean isModelGroup()               { return true; }
      public boolean isElementDecl()              { return false; }
  
      public XSWildcard asWildcard()              { return null; }
      public XSModelGroupDecl asModelGroupDecl()  { return null; }
      public XSModelGroup asModelGroup()          { return this; }
      public XSElementDecl asElementDecl()        { return null; }
  
  
  
      public void visit( XSVisitor visitor ) {
          visitor.modelGroup(this);
      }
      public void visit( XSTermVisitor visitor ) {
          visitor.modelGroup(this);
      }
      public Object apply( XSTermFunction function ) {
          return function.modelGroup(this);
      }
  
      public <T,P> T apply(XSTermFunctionWithParam<T, P> function, P param) {
          return function.modelGroup(this,param);
      }
  
      public Object apply( XSFunction function ) {
          return function.modelGroup(this);
      }
  
      // Ref.Term implementation
      public XSTerm getTerm() { return this; }
  }
  