View Javadoc

    1   /*
    2    * Copyright 2002-2006 The Apache Software Foundation.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  package org.apache.commons.jexl.parser;
    17
    18  import org.apache.commons.jexl.JexlContext;
    19
    20  /***
    21   * represents Boolean false.
    22   *
    23   * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    24   * @version $Id: ASTFalseNode.java 398194 2006-04-29 16:14:58Z dion $
    25   */
    26  public class ASTFalseNode extends SimpleNode {
    27
    28      /***
    29       * Create the node given an id.
    30       *
    31       * @param id node id.
    32       */
    33      public ASTFalseNode(int id) {
    34          super(id);
    35      }
    36
    37      /***
    38       * Create a node with the given parser and id.
    39       *
    40       * @param p a parser.
    41       * @param id node id.
    42       */
    43      public ASTFalseNode(Parser p, int id) {
    44          super(p, id);
    45      }
    46
    47      /*** {@inheritDoc} */
    48      public Object jjtAccept(ParserVisitor visitor, Object data) {
    49          return visitor.visit(this, data);
    50      }
    51
    52      /*** {@inheritDoc} */
    53      public Object value(JexlContext jc) throws Exception {
    54          return Boolean.FALSE;
    55      }
    56  }