Can I tag certain highlights
Can I tag certain highlights
It seems that we can do this only while using JBoss but not in a standalong env. I read another post somewhere else stating that its is bug in springframework where in we cannot register a MBean to a remote MBeanServer, since MBeanServerFactor only can get reference to a locally running MBean
I realy should use this more often.
nullIdeally, I we should be using this method of defining web servies - contract-first. Start with defining the XSD (i.e the contract) and then look into implementing either side of the the contract. -- 2009-11-11
Thinking about the contract driving webservices, this seems a lot similar to what osgi extensions has to offer i.e the osgi extension defines the contract. On these basis can we define the osgi contract using WS XSD? -- 2009-11-11
I was always looking for something on these lines.
Why should we go in for contract-first approach to designing web services.
When creating Web services, there are two development styles: Contract Last and Contract First. When using a contract-last approach, you start with the Java code, and let the Web service contract (WSDL, see sidebar) be generated from that. When using contract-first, you start with the WSDL contract, and use Java to implement said contract.
What is WSDL?
WSDL stands for Web Services Description Language. A WSDL file is an XML document that describes a Web service. It specifies the location of the service and the operations (or methods) the service exposes. For more information about WSDL, refer to the WSDL specification, or read the WSDL tutorial
Spring-WS only supports the contract-first development style, and this section explains why
A really good introduction to defining contract-first web services using spring framework. Less so on spring framework but more on the WS designing aspect.
I really wish I had read this back in Nov 07 - Jan 08 while I was working on creating the locate webservice.
binding, which tells the client how to invoke the operations you've just definedservice, which tells it where to invoke it
Search with in Spring Reference Doc: http://www.google.co.uk/search?hl=en&q=site%3Ahttp%3A%2F%2Fstatic.springsource.org%2Fspring%2Fdocs%2F2.5.x%2Freference%2F&btnG=Search&meta=&aq=f&oq=
Onto specifics... all that one need do is to declare a ContextLoaderListener in the standard J2EE servlet web.xml file of one's web application, and add a contextConfigLocation <context-param/> section (in the same file) that defines which set of Spring XML cpnfiguration files to load.
Find below the <listener/> configuration:
<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>
![]() | Note |
|---|---|
Listeners were added to the Servlet API in version 2.3; listener startup order was finally clarified in Servlet 2.4. If you have a Servlet 2.3 container, you can use the ContextLoaderServlet to achieve the same functionality in a 100% portable fashion (with respect to startup order). | |
Find below the <context-param/> configuration:
<context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext*.xml</param-value> </context-param>
If you don't specify the contextConfigLocation context parameter, the ContextLoaderListener will look for a file called /WEB-INF/applicationContext.xml to load. Once the context files are loaded, Spring creates a WebApplicationContext object based on the bean definitions and stores it in the ServletContext of one's web application.
All Java web frameworks are built on top of the Servlet API, and so one can use the following code snippet to get access to this 'business context' ApplicationContext created by the ContextLoaderListener
@Repository
public class ProductDaoImpl implements ProductDao {
// class body here...
}
<beans>
<!-- Exception translation bean post processor -->
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<bean id="myProductDao" class="product.ProductDaoImpl"/>
</beans>
The postprocessor will automatically look for all exception translators (implementations of the PersistenceExceptionTranslator interface) and advise all beans marked with the @Repository annotation so that the discovered translators can intercept and apply the appropriate translation on the thrown exceptions.
http://static.springsource.org/spring/docs/2.5.x/reference/orm.html#orm-jpa-exceptions
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