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Borland® JBuilder™ Developer’s Guide by Jeff Swisher, Saleem Siddiqui, Michael Landy

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Transactions

Transactions play an important role in most application development projects. This is not different when developing an EJB-based solution. Transactions can be complex features to implement, but EJB-based systems require that the vendors implement transaction processing within the container. This does not mean, however, that you do not have to be concerned about transactions.

Simply put, a transaction is a grouping of work that represents a single unit or task. This single unit may contain something as simple as one step or many complex steps to be treated as one. Many times, people ask “Why do I need transactions?” Transactions help to alleviate the complexity of coordinating data or resource access across many clients.

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