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Siva kumar VP via JavaKB. · Guest

hello help

I have worked out 1 project using MVC

jsp - servlet - POJO's - own data manager - oracle - web logic

now i have to start a new project with

(Spring/Tapestry)-POJO's-hibernate-oracle-JBOSS

i am facing many problems

what are the main differences between JBOSS & TOMCAT ?

I am not using EJB i am using POJO's then why do I go for JBOSS instead
of TOMCAT??

what is the advantage of O/R mapping provided by hibernate what are all
the different tools available automaticatically produce XML mapping files
and classes for the tables when i use hibernate ??

what is the best thing for front end java script validations in model
applications they are using POJO's for that whether to follow that or it is
good to use java script files for validations??

if we use hibernate it in turn uses JBOSS connection pool to connect to
database or ??

how to call stored procedures using hibernate??

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Main Question - except oracle everything mentioned above is fully
free , i mean open source right ???

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when using Spring with Hibernate how to disable auto commit so that
i want to explicitly commit each transaction
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Totally confused

also if u know suggest me some books where can i get all the answers

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