org.springframework.beans.factory.config.ResourceFactoryBean Maven / Gradle / Ivy
/*
* 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.beans.factory.config;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.io.Resource;
/**
* {@link FactoryBean} for {@link Resource} descriptors,
* exposing a Resource object for a specific resource location.
*
* If used in the context of a surrounding
* {@link org.springframework.context.ApplicationContext},
* the resolution of a resource location String will be delegated
* to the ApplicationContext's getResource method.
* Resource loading behavior will thus be specific to the context implementation.
*
* @author Juergen Hoeller
* @author Rick Evans
* @since 28.12.2003
* @see org.springframework.context.ApplicationContext#getResource
*/
public class ResourceFactoryBean implements FactoryBean, InitializingBean {
private Resource resource;
/**
* Set the resource location. Can be populated with a String
* value in a bean definition, to be automatically translated via
* {@link org.springframework.context.ApplicationContext#getResource}
*
This property is required.
*/
public void setLocation(Resource location) {
this.resource = location;
}
public void afterPropertiesSet() {
if (this.resource == null) {
throw new IllegalArgumentException("'location' is required");
}
}
public Object getObject() {
return this.resource;
}
public Class getObjectType() {
return (this.resource != null ? this.resource.getClass() : Resource.class);
}
public boolean isSingleton() {
return true;
}
}