Software Engineering & Architecture
Don’t let trigger take control
In earlier times of Database Systems, as triggers were proposed (e.g. by Eswaran1, Eswaran2 ), the goal of such DB mechanisms like trigger, was clear. Triggers appears for extending of Integrity control in Database Systems and became following definition: … Database Trigger is predefined database procedure, conditionally or unconditionally succeeding or preceding other database operations [...]
How to test J2EE Applications
Most java developers use (ok, ok maby just know about ) Junit. JUnit provides an effective and easy way to unit test client-side Java applications. Here is an very short example, just to see how easy you can build client-side Junit tests: {[.junit1 /enzymes/s_java.php]} JunitEE But Junit has some limitations, therefore, testing in each application [...]
First Look at Java Persistence API (JPA)
The Java Persistence API page on java.sun.com describes the Persistence API as: The Java Persistence API provides a POJO persistence model for object-relational mapping. The Java Persistence API was developed by the EJB 3.0 software expert group as part of JSR 220, but its use is not limited to EJB software components. It can also [...]