| // Copyright 2004 The Apache Software Foundation |
| // |
| // 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.apache.tapestry.script; |
| |
| import org.apache.tapestry.ILocation; |
| |
| /** |
| * |
| * Like {@link org.apache.tapestry.script.LetToken}, but sets the value |
| * from an expression attribute, rather than a body of full content. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 2.2 |
| * |
| **/ |
| |
| class SetToken extends AbstractToken |
| { |
| private String _key; |
| private String _expression; |
| |
| SetToken(String key, String expression, ILocation location) |
| { |
| super(location); |
| _key = key; |
| _expression = expression; |
| } |
| |
| /** |
| * |
| * Doesn't <em>write</em>, it evaluates the expression and assigns |
| * the result back to the key. |
| * |
| **/ |
| |
| public void write(StringBuffer buffer, ScriptSession session) |
| { |
| |
| Object value = evaluate(_expression, session); |
| |
| session.getSymbols().put(_key, value); |
| } |
| |
| } |