content: /*
   * Portions Copyright (c) 2009-10 Zepheira LLC, Some Rights Reserved
   * Portions Copyright (c) 2010-11 Talis Inc, Some Rights Reserved
   *
   * Licensed 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 org.callimachusproject.engine.helpers;
  
  import org.callimachusproject.engine.model.Var;
  
  /**
   * Flags a variable as not being used in a join.
   * 
   * @author James Leigh
   *
   */
  public class BlankOrLiteralVar extends Var {
  	private String name;
  
  	public BlankOrLiteralVar(String name) {
  		this.name = name;
  	}
  
  	@Override
  	public String prefix() {
  		return "?";
  	}
  
  	@Override
  	public String stringValue() {
  		return name;
  	}
  
  }
  