gwtrpc.shaded.com.google.auto.service.AutoService Maven / Gradle / Ivy

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/*
 * Copyright (C) 2008 Google, Inc.
 *
 * 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.
 */
package com.google.auto.service;

import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.SOURCE;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**
 * An annotation for service providers as described in {@link java.util.ServiceLoader}. The {@link
 * com.google.auto.service.processor.AutoServiceProcessor} generates the configuration files which
 * allows service providers to be loaded with {@link java.util.ServiceLoader#load(Class)}.
 *
 * Service providers assert that they conform to the service provider specification.
 * Specifically, they must:
 *
 * 

 *   be a non-inner, non-anonymous, concrete class
 *   
have a publicly accessible no-arg constructor
 *   
implement the interface type returned by {@code value()}
 * 
 */
@Documented
@Retention(SOURCE)
@Target(TYPE)
public @interface AutoService {
  /** Returns the interfaces implemented by this service provider. */
  Class[] value();
}