| // 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 {@link Boolean}. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| class BooleanAdaptor implements ISqueezeAdaptor |
| { |
| private static final String PREFIX = "TF"; |
| |
| /** |
| * Registers using the prefixes 'T' and 'F' (for TRUE and FALSE). |
| * |
| **/ |
| |
| public void register(DataSqueezer squeezer) |
| { |
| squeezer.register(PREFIX, Boolean.class, this); |
| } |
| |
| /** |
| * Squeezes the {@link Boolean} data to either 'T' or 'F'. |
| * |
| **/ |
| |
| public String squeeze(DataSqueezer squeezer, Object data) |
| { |
| Boolean bool = (Boolean) data; |
| |
| if (bool.booleanValue()) |
| return "T"; |
| else |
| return "F"; |
| } |
| |
| /** |
| * Unsqueezes the string to either {@link Boolean#TRUE} or {@link Boolean#FALSE}, |
| * depending on the prefix character. |
| * |
| **/ |
| |
| public Object unsqueeze(DataSqueezer squeezer, String string) |
| { |
| char ch = string.charAt(0); |
| |
| if (ch == 'T') |
| return Boolean.TRUE; |
| |
| return Boolean.FALSE; |
| } |
| |
| } |