Distributed Real-Time

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  • Multiple ear and shared dabase access problem

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    Hi Friends,

    Need urgent help.

    I working on a project where there will be multiple ear ,each for one application.

    There are 4 project and 4 ears and one common util war file which will be shared by all ears.

    Problem is : 3 of the projects will use same database tables. I am using hibernate ORM mapping for database table.

    Q1. In the above scenario db access table are 90% common in 3 projects. Should I go for instead of 3 ears club into 1 EAR and current 3 project as a 3 module in 1 club ear or per project one ear?

    Pls suggest me the approach and advantage and disadvantages of the approach.

    Q2 : Should I put the data-beans and table mapping files (e.g account.hbn.xml) & hibenate.cfg.xml file in common war(centralized or shared) or replicate the copies of all beans mapping xml and beans classes in every ear.

    If you suggesting to use the centralized/shared data configuration approach then how EAR 's jvms will handle Transaction for every ear.

    I am using Websphere app server6.1, hibernate3 and db2 8.0

    Waiting for your interesting replies.

    Thanking you in advance.

    Navin.

Re: Multiple ear and shared dabase access problem


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