/* * Copyright 2002-2008 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.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.FactoryBean; import org.springframework.beans.factory.InitializingBean; /** * Factory bean for * commons-logging * {@link org.apache.commons.logging.Log} instances. * *
Useful for sharing Log instances among multiple beans instead of using
* one Log instance per class name, e.g. for common log topics.
*
* @author Juergen Hoeller
* @since 16.11.2003
* @see org.apache.commons.logging.Log
*/
public class CommonsLogFactoryBean implements FactoryBean This property is required.
* @param logName the name of the log
*/
public void setLogName(String logName) {
this.log = LogFactory.getLog(logName);
}
public void afterPropertiesSet() {
if (this.log == null) {
throw new IllegalArgumentException("'logName' is required");
}
}
public Log getObject() {
return this.log;
}
public Class extends Log> getObjectType() {
return (this.log != null ? this.log.getClass() : Log.class);
}
public boolean isSingleton() {
return true;
}
}