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    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.util.Coercion;
    19  import org.apache.commons.jexl.JexlContext;
    20
    21  /***
    22   * || and 'or'.
    23   *
    24   * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    25   * @version $Id: ASTOrNode.java 398272 2006-04-30 03:14:01Z dion $
    26   */
    27  public class ASTOrNode extends SimpleNode {
    28      /***
    29       * Create the node given an id.
    30       *
    31       * @param id node id.
    32       */
    33      public ASTOrNode(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 ASTOrNode(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          Object left = ((SimpleNode) jjtGetChild(0)).value(jc);
    55          boolean leftValue = Coercion.coerceBoolean(left).booleanValue();
    56
    57          /*
    58           * coercion rules
    59           */
    60          return (leftValue || Coercion.coerceBoolean(((SimpleNode) jjtGetChild(1)).value(jc)).booleanValue())
    61              ? Boolean.TRUE
    62              : Boolean.FALSE;
    63      }
    64  }