01: // Copyright 2006, 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.services;
16:
17: import org.apache.tapestry.services.Request;
18: import org.apache.tapestry.services.Session;
19:
20: /**
21: * A strategy for storing persistent page properties into the {@link Session session}.
22: * <p>
23: * Builds attribute names as:
24: * <code>state:<em>page-name</em>:<em>component-id</em>:<em>field-name</em></code>
25: */
26:
27: public class SessionPersistentFieldStrategy extends
28: AbstractSessionPersistentFieldStrategy {
29: /**
30: * Prefix used to identify keys stored in the session that are being used to store persistent
31: * field data.
32: */
33: static final String PREFIX = "state:";
34:
35: public SessionPersistentFieldStrategy(Request request) {
36: super(PREFIX, request);
37: }
38: }
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