JSR-227 defines a standard way for tools to implement the interactions between user interfaces and services, doing this in a way that will work for any user interface and any service technology. MVC is application design pattern in this.Primary supported by Sun+oracle. JSR 227 defines an abstraction mechanism. We are accessing data from JavaBeans, EJB, [...]

Serialization is the process of converting an object into a sequence of bits so that it can be persisted on a storage medium (such as a file, or a memory buffer) or transmitted across a network connection link. This process of serializing an object is also called deflating or marshalling an object. The serialization mechanism [...]

Ext-JS is a open source JavaScript library for building interactive web applications[2] using techniques such as AJAX, DHTML and DOM scripting.It is easy to use,rich user interface and more it can be a desktop application. It includes: • High performance, customizable UI widgets • Well designed and extensible Component model • An intuitive, easy to [...]

In my previous post of thread pool (http://www.techartifact.com/blogs/2009/06/what-is-thread-pool-in-java.html),I have given the theoritcal knowledge.now I came with code.Hope it will help a lot. Java’s implementation of thread pool is based on an executor. Executor is a generic concept modeled by this interface. You simple have to create the task and pass it on execute() method of [...]

Entity object – ADF entity object are business components that encapsulate the business model, including data, rules, and persistence behavior, for items that are used in your application. Entity object definitions map to single objects in the data source. In the vast majority of cases, these are tables, views, synonyms, or snapshots in a database. [...]

Threads are a very important Part of Java, but creating large numbers of threads can degrade the performance of application.By thread pools, which allow you to maintain fixed number of threads running assigned tasks to each of the threads. Suppose A thing may have to visit tens of thousands of pages, and you will not [...]

jQuery is a lightweight JavaScript library that emphasizes interaction between JavaScript and HTML. jQuery is an amazing JavaScript library that makes it easy to create wonderful web effects in just a few lines of code. jQuery is a new type of Javascript library. It is not a huge, bloated framework promising the best in AJAX [...]

Some time, in our application we need to display some table cells highlighted with some colours.for different condition we need Different colour of row or some particular cell. This can be possible by using expression language(EL) .We can write an ternary operation in expression language(EL).For example if we are displaying data in tabular structure .And [...]

In Oracle ADF, for refreshing the page after doing some operation in database we need to refresh the Page ,which is very needed to display the right content.For this we need to write java method in page.java file. Write that method anywhere in java file and call that method anywhere where you want to refresh [...]

In oracle ADF, for executing the view object query we need to write code for that.This code is needed for refreshing the table content after executing some DML operation.For that we need to execute the query of view object.For that write an in application module Impl.java file.For an example look the below code- After writing [...]