Code/Resource
Windows Develop
Linux-Unix program
Internet-Socket-Network
Web Server
Browser Client
Ftp Server
Ftp Client
Browser Plugins
Proxy Server
Email Server
Email Client
WEB Mail
Firewall-Security
Telnet Server
Telnet Client
ICQ-IM-Chat
Search Engine
Sniffer Package capture
Remote Control
xml-soap-webservice
P2P
WEB(ASP,PHP,...)
TCP/IP Stack
SNMP
Grid Computing
SilverLight
DNS
Cluster Service
Network Security
Communication-Mobile
Game Program
Editor
Multimedia program
Graph program
Compiler program
Compress-Decompress algrithms
Crypt_Decrypt algrithms
Mathimatics-Numerical algorithms
MultiLanguage
Disk/Storage
Java Develop
assembly language
Applications
Other systems
Database system
Embeded-SCM Develop
FlashMX/Flex
source in ebook
Delphi VCL
OS Develop
MiddleWare
MPI
MacOS develop
LabView
ELanguage
Software/Tools
E-Books
Artical/Document
SimpleRemoteStatelessSessionProxyFactoryBean.java
Upload User: jiancairen
Upload Date: 2007-08-27
Package Size: 26458k
Code Size: 4k
Category:
Java Develop
Development Platform:
Java
- /*
- * Copyright 2002-2004 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.ejb.access;
- import javax.naming.NamingException;
- import org.springframework.aop.framework.ProxyFactory;
- import org.springframework.beans.factory.FactoryBean;
- /**
- * <p>Convenient factory for remote SLSB proxies.
- * If you want control over interceptor chaining, use an AOP ProxyFactoryBean
- * with SimpleRemoteSlsbInvokerInterceptor rather than rely on this class.
- *
- * <p>See {@link org.springframework.jndi.JndiObjectLocator} for info on
- * how to specify the JNDI location of the target EJB.
- *
- * <p>In a bean container, this class is normally best used as a singleton. However,
- * if that bean container pre-instantiates singletons (as do the XML ApplicationContext
- * variants) you may have a problem if the bean container is loaded before the EJB
- * container loads the target EJB. That is because the JNDI lookup will be performed in
- * the init method of this class and cached, but the EJB will not have been bound at the
- * target location yet. The solution is to not pre-instantiate this factory object, but
- * allow it to be created on first use. In the XML containers, this is controlled via
- * the "lazy-init" attribute.
- *
- * <p>This proxy factory is typically used with an RMI business interface, which serves
- * as super-interface of the EJB component interface. Alternatively, this factory
- * can also proxy a remote SLSB with a matching non-RMI business interface, i.e. an
- * interface that mirrors the EJB business methods but does not declare RemoteExceptions.
- * In the latter case, RemoteExceptions thrown by the EJB stub will automatically get
- * converted to Spring's unchecked RemoteAccessException.
- *
- * @author Rod Johnson
- * @author Colin Sampaleanu
- * @author Juergen Hoeller
- * @since 09-May-2003
- * @see org.springframework.remoting.RemoteAccessException
- */
- public class SimpleRemoteStatelessSessionProxyFactoryBean extends SimpleRemoteSlsbInvokerInterceptor
- implements FactoryBean {
- /*
- * Instead of a separate subclass for each type of SLSBInvoker, we could have added
- * this functionality to AbstractSlsbInvokerInterceptor. However, the avoiding of
- * code duplication would be outweighed by the confusion this would produce over the
- * purpose of AbstractSlsbInvokerInterceptor.
- */
- /** The business interface of the EJB we're proxying */
- private Class businessInterface;
- /** EJBObject */
- private Object proxy;
- /**
- * Set the business interface of the EJB we're proxying.
- * This will normally be a super-interface of the EJB remote component interface.
- * Using a business methods interface is a best practice when implementing EJBs.
- * <p>You can also specify a matching non-RMI business interface, i.e. an interface
- * that mirrors the EJB business methods but does not declare RemoteExceptions.
- * In this case, RemoteExceptions thrown by the EJB stub will automatically get
- * converted to Spring's generic RemoteAccessException.
- * @param businessInterface the business interface of the EJB
- */
- public void setBusinessInterface(Class businessInterface) {
- this.businessInterface = businessInterface;
- }
- /**
- * Return the business interface of the EJB we're proxying.
- */
- public Class getBusinessInterface() {
- return businessInterface;
- }
- public void afterPropertiesSet() throws NamingException {
- super.afterPropertiesSet();
- if (this.businessInterface == null) {
- throw new IllegalArgumentException("businessInterface is required");
- }
- this.proxy = ProxyFactory.getProxy(this.businessInterface, this);
- }
- public Object getObject() {
- return this.proxy;
- }
- public Class getObjectType() {
- return (this.proxy != null) ? this.proxy.getClass() : this.businessInterface;
- }
- public boolean isSingleton() {
- return true;
- }
- }