| // 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; |
| |
| import java.io.IOException; |
| |
| /** |
| * Interface which defines a class used to convert data for a specific |
| * Java type into a String format (squeeze it), |
| * or convert from a String back into a Java type (unsqueeze). |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| public interface ISqueezeAdaptor |
| { |
| /** |
| * Converts the data object into a String. |
| * |
| * @throws IOException if the object can't be converted. |
| **/ |
| |
| public String squeeze(DataSqueezer squeezer, Object data) throws IOException; |
| |
| /** |
| * Converts a String back into an appropriate object. |
| * |
| * @throws IOException if the String can't be converted. |
| * |
| **/ |
| |
| public Object unsqueeze(DataSqueezer squeezer, String string) |
| throws IOException; |
| |
| /** |
| * Invoked to ask an adaptor to register itself to the squeezer. |
| * |
| **/ |
| |
| public void register(DataSqueezer squeezer); |
| } |