01: // Copyright 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.services;
16:
17: /**
18: * Used to provide access to stategies via a logical name for the stategy, such as "session".
19: * <p>
20: * Note: Ideally, this would just be internal to {@link ApplicationStateManager}, but Tapestry
21: * IOC's one-configuration-per-service makes that awkward, so this part of that functionality
22: * becomes its own service.
23: */
24: public interface ApplicationStatePersistenceStrategySource {
25: /**
26: * Returns the named strategy.
27: *
28: * @param name
29: * of strategy to access
30: * @return the strategy
31: * @throws RuntimeException
32: * if the name does not match a configured strategy
33: */
34: ApplicationStatePersistenceStrategy get(String name);
35: }
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