org.springframework.web.bind.annotation.RestControllerAdvice Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* 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 org.springframework.web.bind.annotation;
import java.lang.annotation.Annotation;
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;
import org.springframework.core.annotation.AliasFor;
/**
* A convenience annotation that is itself annotated with
* {@link ControllerAdvice @ControllerAdvice}
* and {@link ResponseBody @ResponseBody}.
*
* Types that carry this annotation are treated as controller advice where
* {@link ExceptionHandler @ExceptionHandler} methods assume
* {@link ResponseBody @ResponseBody} semantics by default.
*
*
NOTE: {@code @RestControllerAdvice} is processed if an appropriate
* {@code HandlerMapping}-{@code HandlerAdapter} pair is configured such as the
* {@code RequestMappingHandlerMapping}-{@code RequestMappingHandlerAdapter} pair
* which are the default in the MVC Java config and the MVC namespace.
* In particular {@code @RestControllerAdvice} is not supported with the
* {@code DefaultAnnotationHandlerMapping}-{@code AnnotationMethodHandlerAdapter}
* pair both of which are also deprecated.
*
* @author Rossen Stoyanchev
* @since 4.3
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@ControllerAdvice
@ResponseBody
public @interface RestControllerAdvice {
/**
* Alias for the {@link #basePackages} attribute.
*
Allows for more concise annotation declarations e.g.:
* {@code @ControllerAdvice("org.my.pkg")} is equivalent to
* {@code @ControllerAdvice(basePackages="org.my.pkg")}.
* @see #basePackages()
*/
@AliasFor("basePackages")
String[] value() default {};
/**
* Array of base packages.
*
Controllers that belong to those base packages or sub-packages thereof
* will be included, e.g.: {@code @ControllerAdvice(basePackages="org.my.pkg")}
* or {@code @ControllerAdvice(basePackages={"org.my.pkg", "org.my.other.pkg"})}.
*
{@link #value} is an alias for this attribute, simply allowing for
* more concise use of the annotation.
*
Also consider using {@link #basePackageClasses()} as a type-safe
* alternative to String-based package names.
*/
@AliasFor("value")
String[] basePackages() default {};
/**
* Type-safe alternative to {@link #value()} for specifying the packages
* to select Controllers to be assisted by the {@code @ControllerAdvice}
* annotated class.
*
Consider creating a special no-op marker class or interface in each package
* that serves no purpose other than being referenced by this attribute.
*/
Class[] basePackageClasses() default {};
/**
* Array of classes.
*
Controllers that are assignable to at least one of the given types
* will be assisted by the {@code @ControllerAdvice} annotated class.
*/
Class[] assignableTypes() default {};
/**
* Array of annotations.
*
Controllers that are annotated with this/one of those annotation(s)
* will be assisted by the {@code @ControllerAdvice} annotated class.
*
Consider creating a special annotation or use a predefined one,
* like {@link RestController @RestController}.
*/
Class[] annotations() default {};
}