45 lines
2.0 KiB
Java
45 lines
2.0 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.controls.api.bean;
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import com.sun.mirror.apt.AnnotationProcessorEnvironment;
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import com.sun.mirror.declaration.Declaration;
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/**
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* The ControlChecker interface is implemented by control authors wishing to
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* enforce rich semantic validation on extension and field instance declarations of
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* their controls. By supplying a ControlChecker implementation (a "checker")
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* and associating it with your control's public interface, when an extension (.jcx)
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* of your control is processed at build-time, the checker will be invoked and
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* can do rich validation of the jcx type and field instances via introspection and
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* analysis of the jcx's type structure, signatures and annotations.
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* <p>
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* Checkers are instantiated by, and required to implement, a no-arg constructor.
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* They are provided with type information and context via the Sun mirror API.
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*/
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public interface ControlChecker
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{
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/**
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* Invoked by the control build-time infrastructure to process a declaration of
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* a control extension (ie, an interface annotated with @ControlExtension), or
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* a field instance of a control type.
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*/
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public void check(Declaration decl, AnnotationProcessorEnvironment env);
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}
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