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Extends.java
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package act.plugin;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import act.app.ProjectLayoutProbe;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Mark the extended class. This is used by plugin class which does not
* extends a certain class directly.
* <p>For example, suppose a plugin developer created a class
* {@code MyProjLayoutProbe} extends {@link ProjectLayoutProbe},
* the class could be sensed by Act directly; however if the developer decide
* extend {@code MyProjLayoutProbe} and create another class
* {@code MySubProjLayoutProbe} then this {@code Extends @Extends}
* annotation needs to be used to mark on the new class. Otherwise, the plugin detector
* will not be able to detect the second class that does not extends the
* {@link ProjectLayoutProbe} class directly
* </p>
*/
@Retention(RetentionPolicy.CLASS)
@Target(ElementType.TYPE)
public @interface Extends {
/**
* Mark the class that the underline type will extends directly or
* indirectly
*/
Class<?> value();
}