    001// Copyright 2008, 2011 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;
    016
    017/**
    018 * Meta-data keys that are applied to components and pages.  In addition, in many cases a {@linkplain
    019 * org.apache.tapestry5.SymbolConstants symbol constant key} is also a meta data key (where the symbol value is the
    020 * ultimate default).
    021 *
    022 * @see org.apache.tapestry5.services.MetaDataLocator
    023 * @see org.apache.tapestry5.MetaDataConstants
    024 */
    025public class MetaDataConstants
    026{
    027    /**
    028     * Meta data key applied to pages that sets the response content type. A factory default provides the value
    029     * "text/html" when not overridden.
    030     */
    031    public static final String RESPONSE_CONTENT_TYPE = "tapestry.response-content-type";
    032
    033    /**
    034     * Meta data key applied to pages that may only be accessed via secure methods (HTTPS).
    035     */
    036    public static final String SECURE_PAGE = "tapestry.secure-page";
    037
    038    /**
    039     * Meta-data for identifying pages that should only be accessible from clients on the whitelist.
    040     * The meta-default is "false".
    041     *
    042     * @see org.apache.tapestry5.services.security.ClientWhitelist
    043     * @since 5.3
    044     */
    045    public static final String WHITELIST_ONLY_PAGE = "tapestry.white-list-only-page";
    046
    047    /**
    048     * Meta data key applied to pages that may only be accessed with a exact activation context.
    049     *
    050     * @since 5.4
    051     */
    052    public static final String UNKNOWN_ACTIVATION_CONTEXT_CHECK = "tapestry.unknwon-activation-context-check";
    053}