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   *   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
   *
   *    https://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
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   ****************************************************************/
  package org.apache.cayenne.map;
  
  /**
   * @since 3.0
   */
  class RelationshipPathComponent<A extends Attribute<?, A, R>, R extends Relationship<?, A, R>>
          implements PathComponent<A, R> {
  
      private final R relationship;
      private final JoinType joinType;
      private final boolean last;
  
      RelationshipPathComponent(R relationship, JoinType joinType, boolean last) {
          this.relationship = relationship;
          this.joinType = joinType;
          this.last = last;
      }
  
      public A getAttribute() {
          return null;
      }
  
      public R getRelationship() {
          return relationship;
      }
  
      public JoinType getJoinType() {
          return joinType;
      }
  
      public String getName() {
          return relationship.getName();
      }
  
      public boolean isLast() {
          return last;
      }
  
      public boolean isAlias() {
          return false;
      }
  
      public Iterable<PathComponent<A, R>> getAliasedPath() {
          return null;
      }
  }
  