001// Copyright 2030 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry5.internal.services; 016 017import org.apache.tapestry5.ComponentResources; 018import org.apache.tapestry5.EventContext; 019 020import java.io.IOException; 021 022/** 023 * Responsible for handling the response for a page called with an unknown activation context when the check itself is 024 * enabled. 025 * The default implementation is to respond with a 404 NOT FOUND. 026 * 027 * @see http://issues.apache.org/jira/browse/TAP5-2070 028 * @see org.apache.tapestry5.annotations.UnknownActivationContextCheck 029 * @see org.apache.tapestry5.services.HttpError 030 * 031 * @since 5.4 032 */ 033public interface UnknownActivationContextHandler 034{ 035 /** 036 * Answer the client in the case of a request coming in with an unknown activation context. 037 */ 038 @SuppressWarnings("unchecked") 039 void handleUnknownContext(ComponentResources pageResources, EventContext activationContext) 040 throws IOException; 041}