// 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.tapestry5; | |
import org.apache.tapestry5.services.RequestExceptionHandler; | |
import java.io.IOException; | |
import java.util.List; | |
/** | |
* A contribution to the default {@link RequestExceptionHandler} service, this is mapped to an exception class, | |
* allowing class specific (based on an inheritance search) handling of an exception. | |
* | |
* @see ContextAwareException | |
*/ | |
public interface ExceptionHandlerAssistant | |
{ | |
/** | |
* Handles the exception, returning a page class or link to redirect to. | |
* | |
* @param exception | |
* the exception as thrown | |
* @param exceptionContext | |
* a page activation context that is derived from the root-most exception | |
* @return either a page class or a {@link Link}; a page will be redirected to, with the exception context | |
* as the page activation context | |
* @throws IOException | |
*/ | |
Object handleRequestException(Throwable exception, List<Object> exceptionContext) throws IOException; | |
} |