/*
* Copyright 2002-2007 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.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation that binds a method parameter or method return value
* to a named model attribute, exposed to a web view. Supported
* for {@link RequestMapping} annotated handler classes.
*
* <p>Can be used to expose command objects to a web view, using
* specific attribute names, through annotating corresponding
* parameters of a {@link RequestMapping} annotated handler method).
*
* <p>Can also be used to expose reference data to a web view
* through annotating accessor methods in a controller class which
* is based on {@link RequestMapping} annotated handler methods,
* with such accessor methods allowed to have any arguments that
* {@link RequestMapping} supports for handler methods, returning
* the model attribute value to expose.
*
* @author Juergen Hoeller
* @since 2.5
*/
@Target({ElementType.PARAMETER, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ModelAttribute {
/**
* The name of the model attribute to bind to.
* <p>The default model attribute name is inferred from the declared
* attribute type (i.e. the method parameter type or method return type),
* based on the non-qualified class name:
* e.g. "orderAddress" for class "mypackage.OrderAddress",
* or "orderAddressList" for "List<mypackage.OrderAddress>".
*/
String value() default "";
}
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