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: import org.apache.tapestry.runtime.Component;
18:
19: /**
20: * Responsible for handling the return value provided by a component event handler.
21: *
22: * @param <T>
23: */
24: public interface ComponentEventResultProcessor<T> {
25: /**
26: * For a given, non-null return value, provide a corresponding Link object (which will
27: * ultimately be transformed into a URL and sent to the client as a redirect).
28: *
29: * @param value
30: * the value returned from a method
31: * @param component
32: * the component on which a method was invoked
33: * @param methodDescripion
34: * a description of method which provided the value
35: * @return an object that can send the request to the client
36: * @throws RuntimeException
37: * if the value can not be converted into a link
38: */
39: ActionResponseGenerator processComponentEvent(T value,
40: Component component, String methodDescripion);
41: }
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