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| org.apache.commons.jexl.parser.ASTAssignment | 
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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 | ||
| 17 |  package org.apache.commons.jexl.parser; | |
| 18 | ||
| 19 |  import org.apache.commons.jexl.JexlContext; | |
| 20 | ||
| 21 |  /** | |
| 22 |   * x = y, assigns a value to a variable in the context. | |
| 23 |   *  | |
| 24 |   * @author Dion Gillard | |
| 25 |   *  | |
| 26 |   */ | |
| 27 | public class ASTAssignment extends SimpleNode { | |
| 28 |      /** | |
| 29 |       * Create the node given an id. | |
| 30 |       *  | |
| 31 |       * @param id node id. | |
| 32 |       */ | |
| 33 | public ASTAssignment(int id) { | |
| 34 | 0 |          super(id); | 
| 35 | 0 |      } | 
| 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 ASTAssignment(Parser p, int id) { | |
| 44 | 35 |          super(p, id); | 
| 45 | 35 | } | 
| 46 | ||
| 47 |      /** {@inheritDoc} */ | |
| 48 |      public Object jjtAccept(ParserVisitor visitor, Object data) { | |
| 49 | 0 |          return visitor.visit(this, data); | 
| 50 | } | |
| 51 | ||
| 52 |      /** {@inheritDoc} */ | |
| 53 |      public Object value(JexlContext context) throws Exception { | |
| 54 |          // left should be the variable (reference) to assign to | |
| 55 | 53 | SimpleNode left = (SimpleNode) jjtGetChild(0); | 
| 56 |          // right should be the expression to evaluate | |
| 57 | 53 | Object right = ((SimpleNode) jjtGetChild(1)).value(context); | 
| 58 | 53 |          if (left instanceof ASTReference) { | 
| 59 | 53 | ASTReference reference = (ASTReference) left; | 
| 60 | 53 | left = (SimpleNode) reference.jjtGetChild(0); | 
| 61 | 53 | if (left instanceof ASTIdentclass="keyword">ifier) { | 
| 62 | 53 | String identifier = ((ASTIdentifier) left) | 
| 63 | .getIdentifierString(); | |
| 64 | 53 | context.getVars().put(identifier, right); | 
| 65 | } | |
| 66 | } | |
| 67 | 53 |          return right; | 
| 68 | } | |
| 69 | } | 
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |