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    1   /*
    2    * Copyright 2002,2004 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  import org.apache.commons.jexl.util.Coercion;
    20
    21  /***
    22   *  && and 'and'
    23   *
    24   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    25   *  @version $Id: ASTAndNode.java,v 1.4 2004/08/17 13:20:47 dion Exp $
    26   */
    27  public class ASTAndNode extends SimpleNode
    28  {
    29      public ASTAndNode(int id)
    30      {
    31          super(id);
    32      }
    33
    34      public ASTAndNode(Parser p, int id)
    35      {
    36          super(p, id);
    37      }
    38
    39
    40      /*** Accept the visitor. **/
    41      public Object jjtAccept(ParserVisitor visitor, Object data)
    42      {
    43          return visitor.visit(this, data);
    44      }
    45
    46      public Object value(JexlContext jc)
    47          throws Exception
    48      {
    49          Object left = ((SimpleNode) jjtGetChild(0)).value(jc);
    50          boolean leftValue = Coercion.coerceBoolean(left).booleanValue();
    51
    52          /*
    53           * coercion rules
    54           */
    55          return (leftValue
    56          		&&
    57  				Coercion.coerceBoolean(
    58  						((SimpleNode) jjtGetChild(1)).value(jc)).booleanValue()) ?
    59              Boolean.TRUE : Boolean.FALSE;
    60      }
    61  }