| // 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.util.io; |
| |
| /** |
| * Squeezes a String (which is pretty simple, most of the time). |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| class StringAdaptor implements ISqueezeAdaptor |
| { |
| private static final String PREFIX = "S"; |
| |
| public void register(DataSqueezer squeezer) |
| { |
| squeezer.register(PREFIX, String.class, this); |
| } |
| |
| public String squeeze(DataSqueezer squeezer, Object data) |
| { |
| String string = (String) data; |
| |
| return PREFIX + string; |
| } |
| |
| /** |
| * Strips the prefix from the string. This method is only |
| * invoked by the {@link DataSqueezer} if the string leads |
| * with its normal prefix (an 'S'). |
| * |
| **/ |
| |
| public Object unsqueeze(DataSqueezer squeezer, String string) |
| { |
| if (string.length() == 1) |
| return ""; |
| |
| return string.substring(1); |
| } |
| } |