Difference between CMT and BMT
Laxmi Raghu
Ranch Hand
Posts: 218
posted 11 years ago
What is Container managed transaction and bean managed transactions?
Which type of ejbs (session, entity, message driven) implement them?
What's the imapact of them on each bean type?
In which context each is used?
Pls specify the answers for the above. It will be a great help to me.
Which type of ejbs (session, entity, message driven) implement them?
What's the imapact of them on each bean type?
In which context each is used?
Pls specify the answers for the above. It will be a great help to me.
madhav kamal
Greenhorn
Posts: 18
posted 11 years ago
Hi
EJB container provide 6 primary services ,Transactions is one of them
check EJBContext interface [having 3 transaction related methods 1 for BMT 2 for CMT] extended by SessionContext,EntityContext,MessageDrivenContext. depending on the bean kind u will set the context.
2 types of transactions .CMT container will take care,BMT you can useUserTransaction interface to demark the transaction
Session,Message beans can partcipate CMT BMT
Entity only CMT
-------------
BeanContext
[ October 21, 2005: Message edited by: madhav kamal ]
EJB container provide 6 primary services ,Transactions is one of them
check EJBContext interface [having 3 transaction related methods 1 for BMT 2 for CMT] extended by SessionContext,EntityContext,MessageDrivenContext. depending on the bean kind u will set the context.
Originally posted by Laxmi:
What is Container managed transaction and bean managed transactions?
2 types of transactions .CMT container will take care,BMT you can useUserTransaction interface to demark the transaction
Transaction
Which type of ejbs (session, entity, message driven) implement them?
Session,Message beans can partcipate CMT BMT
Entity only CMT
What's the imapact of them on each bean type?
-------------
In which context each is used?
BeanContext
Pls specify the answers for the above. It will be a great help to me.
[ October 21, 2005: Message edited by: madhav kamal ]
Regards<br /> <br /><br />##################################<br />When making a decision of minor importance I have always found it advantageous to consider all the pros and cons. In vital matters, however, such as the choice of a mate or profession, the decisions should come from the unconscious, from somewhere within ourselves<br />Sigmund Freud
madhav kamal
Greenhorn
Posts: 18
posted 11 years ago
Hi
EJB supports both declarative n programmatic.
declarative in ejb-jar.xml <transaction-type>,<transaction-attribues>rs
EJB supports both declarative n programmatic.
declarative in ejb-jar.xml <transaction-type>,<transaction-attribues>rs
Regards<br /> <br /><br />##################################<br />When making a decision of minor importance I have always found it advantageous to consider all the pros and cons. In vital matters, however, such as the choice of a mate or profession, the decisions should come from the unconscious, from somewhere within ourselves<br />Sigmund Freud
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