content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package mf.org.apache.xerces.impl.xs.identity;
  
  import mf.org.apache.xerces.xs.XSIDCDefinition;
  
  /**
   * Schema key reference identity constraint.
   *
   * @author Andy Clark, IBM
   * @version $Id: KeyRef.java 572110 2007-09-02 19:04:44Z mrglavas $
   * @xerces.internal
   */
  public class KeyRef
          extends IdentityConstraint {
  
      //
      // Data
      //
  
      /**
       * The key (or unique) being referred to.
       */
      protected final UniqueOrKey fKey;
  
      //
      // Constructors
      //
  
      /**
       * Constructs a keyref with the specified name.
       */
      public KeyRef(String namespace, String identityConstraintName,
                    String elemName, UniqueOrKey key) {
          super(namespace, identityConstraintName, elemName);
          fKey = key;
          type = IC_KEYREF;
      } // <init>(String,String,String)
  
      //
      // Public methods
      //
  
      /**
       * Returns the key being referred to.
       */
      public UniqueOrKey getKey() {
          return fKey;
      } // getKey(): int
  
      /**
       * {referenced key} Required if {identity-constraint category} is keyref,
       * forbidden otherwise. An identity-constraint definition with
       * {identity-constraint category} equal to key or unique.
       */
      @Override
      public XSIDCDefinition getRefKey() {
          return fKey;
      }
  
  } // class KeyRef
  