com.phloc.commons.annotations.IsSPIImplementation Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2015 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* 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.phloc.commons.annotations;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Marker interface that claims that this class implements an SPI interface that
* is resolved via the {@link java.util.ServiceLoader}. This is mainly for
* checking that this class must be public and requires a public no-argument
* constructor and that no references from any other Java source file may be
* present. If this annotation is used, it implies that the semantics of
* {@link UsedViaReflection} also apply.
*
* @author Philip Helger
*/
@Retention (RetentionPolicy.CLASS)
@Target ({ ElementType.TYPE })
@Documented
// IFJDK5
// @SuppressWarnings ("javadoc")
// ELSE
// ENDIF
public @interface IsSPIImplementation
{
String value() default "";
}