JavaBeat

a4j:support and action attribute This example program demonstrates how to use action attribute to update the server values and display in the screen. In this example user inputs are passed to update method and processed. The values are updated in the h:panelGrid component. The advantage of using a4j:support tag is it can be updated the [...]

a4j:support This example program demonstrates how to get started with a4j:support tag in the RiachFaces tag libraray. This is part of Ajax4jsf libraray. But, from RiachFaces 3.0, Ajax4jsf is merged with RichFaces tag libraray. a4j:support is used inside any component to provide ajax support on that particular field. In our example a4j:support allows user developer [...]

Throws Advice Example Throws Advice is used when throwing exception from the business methods. This interceptor will be called when there is any exception, so one can do any logic to candle the exception. For writing the Throws Advice implementation you have to implement ThrowsAdvice interface. This is typed or marker interface. Marker interface doesn’t [...]

Interception Around Advice Example In this tips we explore how to use the Interception Around Advice in Spring’s Aspect Oriented Programming(AOP). Interception Around Advice is fundamental advice type in the Spring framework. Also this advice type is derived from other frameworks like AspectJ. So it is interoporable with other frameworks, other advices in the Spring [...]

BeforeAdvice and AfterReturningAdvice This tips presents a very simple program for invoking the Before Advice and After Returning Advice in the Spring Framework. Thsese two methods are part of Spring’s AOP implementation and used as interceptor methods. the following program create spring beans using the standalone java program and invokes the business logic method. Business [...]

While creating a project in Eclipse, by default it creates a .classpath file in the project directory. That file will be usedfor storing file names and other dependent files needed in the classpath to compile and execute the project successfully. Normally this file will be updated automatically when ever you update the project libraries here [...]

This example demonstrated how to configure Log4j setup using the Properties file and XML file. These are the two most widely used techniques for configuring the Log4j for your application. But, in the recent days configuring with properties files are considered to be old technique and recommended using XML. This example program uses simple standalone [...]

This example program shows how to insert multiple rows using the batch processing in hibernate. when there are thousand of rows to be persisted, everytime iterating and inserting will cause the memory problem. Hibernate stores all the persisted objects in the memory. To avoid this problem use batch processing in the hibernate. To use the [...]

Hibernate Configuration This example demonstrates how to configure hibernate framework for running a simple standalone program. Here the sample program uses programmatic configuration to set all the properties required for running hibernate. Also the example uses derby as the database to connect and update the values. This is not the big change, you only have [...]

Access Managed Bean methods As we know JSF managed beans are mostly access only through the JSP pages are faces-config.xml.But, there is some schenarios where you will need information stored in the managed beans for the business logic in some other beans. JSF provides API to access those values where ever you want. Note that [...]