JDBC abstraction and DAO module
Illustrate JDBC abstraction and DAO module?
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Using DAO module you can keep up a database code simple and clean, and prevent problems which result from a failure to close database resources. A new layer of important exceptions on the top of error messages given by many database servers is bought in DAO module. In addition, DAO module uses Spring’s AOP module to provide transaction management services for the objects in a Spring application.
Describe the AOP module?
Elaborate the states associated in the thread?
Illustrate the features of Spring ?
Illustrate the Core container module?
Elaborate synchronized methods and synchronized statements?
Differentiate between the methods sleep() and wait()?
Define exception? Demonstrate the working of nested try blocks, with suitable examples?
Describe the advantages of JMS?
Elaborate JMS?
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