12 the most important J2EE optimal practice (2)

In addition, to optimize your EJB component completely, want special attention when assigning segregation rank. Use segregation level of lowest as far as possible, and still maintain the integrality of your data. Inferior segregation level can provide first-rate performance, and can be reduced appear the danger that the database locks up to death.

This is current the most open to question optimal practice. Already many literary works praises CMP EJB, demote likewise incessant also Yu Er. However, the mainest problem is a database here development is difficulty. Before you begin to use any endurance solutions, you need to master inquiry and database lock how to work surely these ABC. If you choose to use CMP EJB, you should ensure you had carried a few books (for example [Brown] and [Barcia] ) know how to use them. Reach contention respect to have a few surely in the lock delicate understand hard interactively, but, what master its is meet after you expend proper time and effort.

Last word

In this brief summary, we had introduced the core mode in J2EE and optimal practice to you, this makes the process that J2EE development makes a kind can manage. Although we did not give out all necessary detail that use these pattern in practice, but our hope can give directions enoughly to you and coach, want in order to help you what to do next surely definitely. (full text is over)