01: // Copyright 2006 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.model.MutableComponentModel;
18:
19: /**
20: * Interface for a set of objects that can perform component class transformations. Implementations
21: * should be multithreaded, ideally they should be stateless (all necessary state can be stored in
22: * the {@link org.apache.tapestry.services.ClassTransformation}).
23: *
24: *
25: */
26: public interface ComponentClassTransformWorker {
27: /**
28: * Invoked to perform a transformation on an as-yet unloaded component class, represented by the
29: * {@link ClassTransformation} instance. In some cases, the worker may make changes to the
30: * component model -- for example, a worker that deals with parameters may update the model to
31: * reflect those parameters.
32: */
33: void transform(ClassTransformation transformation,
34: MutableComponentModel model);
35: }
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