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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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 org.apache.atlas.groovy;
  
  import java.util.Collections;
  import java.util.List;
  
  /**
   * Groovy expression that references the variable with the given name.
   *
   */
  public class IdentifierExpression extends AbstractGroovyExpression {
      private       TraversalStepType type = TraversalStepType.NONE;
      private final String            varName;
  
      public IdentifierExpression(String varName) {
          this.varName = varName;
      }
  
      public IdentifierExpression(TraversalStepType type, String varName) {
          this.type    = type;
          this.varName = varName;
      }
  
      public String getVariableName() {
          return varName;
      }
  
      @Override
      public void generateGroovy(GroovyGenerationContext context) {
          context.append(varName);
      }
  
      @Override
      public List<GroovyExpression> getChildren() {
          return Collections.emptyList();
      }
  
      @Override
      public GroovyExpression copy(List<GroovyExpression> newChildren) {
          return new IdentifierExpression(type, varName);
      }
  
      @Override
      public TraversalStepType getType() {
          return type;
      }
  
      public void setType(TraversalStepType type) {
          this.type = type;
      }
  }
  