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How to maintain history of tables in Hibernate

To Maintain history of database or keep track of modification of database table row , we create a version table that contains fields identical to original table.Whenever original table ...
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Core Java Interview Questions

Tip Are you looking for career opportunities in Java?   Visit our Job Board to search and review a hand-picked selection of Java jobs for IT professionals around the world.   Additionally ...
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Speed Up with Fast Java and File Serialization

Since the first version of Java, day-by-day many developers have been trying to achieve at least as good of performance as in C/C++. JVM vendors are doing their best by implementing ...
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Backreferences in Java Regular Expressions

Backreferences in Java Regular Expressions is another important feature provided by Java. To understand backreferences, we need to understand group first. Group in regular expression ...
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Testing Java EE 6 with Arquillian (incl. JPA, EJB, Bean Validation and CDI)

For a very long time, I heard quite a lot of people saying good things about Arquillian. Whilst I have been reading articles around its use, I couldn’t really find one that covers ...
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A clean approach to Wicket models

One of the core concepts of Apache Wicket web framework is the model and IModel as its programming interface. Wicket components rely heavily on models, which makes them important ...
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Reasons to consider spring-boot for your next Spring based application!

Spring-boot  provides a quick way to create a Spring based application. There are some very compelling reasons to consider spring-boot for your next project: Reason 1 : Simpler Dependency ...
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Batch Writing, and Dynamic vs Parametrized SQL, how well does your database perform?

One of the most effective database optimizations is batch writing. Batch writing is supported by most modern databases and part of the JDBC standard and is supported by most JPA providers. Normal ...
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Java 7 vs Groovy 2.1 Performance Comparison

I haven’t used Groovy for 2 years, since my last touch with Grails. I get stuck in (hard)core Enterprise Java, with some performance aspects in background. I’ve almost missed ...
spring-interview-questions-answers

Spring Interview Questions

Also check our latest article 69 Spring Interview Questions and Answers – The ULTIMATE List. 1) What is Spring? Answer: Spring is a lightweight inversion of control and aspect-oriented ...
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