001// Copyright 2005 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.tapestry.annotations;
016
017import java.lang.annotation.Documented;
018import java.lang.annotation.ElementType;
019import java.lang.annotation.Retention;
020import java.lang.annotation.RetentionPolicy;
021import java.lang.annotation.Target;
022
023/**
024 * Allows a property to be marked as persistent (and, optionally, provide control over how the
025 * property is persisted).
026 * 
027 * @author Howard M. Lewis Ship
028 * @since 4.0
029 */
030
031@Target(
032{ ElementType.METHOD })
033@Retention(RetentionPolicy.RUNTIME)
034@Documented
035public @interface Persist {
036
037    /**
038     * The persistence strategy, defaulting to "session" (meaning, in the HttpSession, as a session
039     * attribute). Tapestry includes another strategy, "client", and additional strategies can be
040     * defined.
041     */
042    String value() default "session";
043}