Java / Java Transactions (JTA)

Difference between a transaction and distributed transaction.

A transaction defines a logical unit of work that either completely succeeds or produces no result at all.

A distributed transaction is simply a transaction that accesses and updates data on two or more networked resources, and therefore must be coordinated among those resources.

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Describe Java Transaction API (JTA). Define transaction demarcation. What are the different types of transaction demarcation? Explain bean-managed transaction. Difference between a transaction and distributed transaction. Name few components involved in the distributed transaction processing (DTP). Explain resource manager in JTA context. What is resource adapter in JTA context? Explain the transactional attribute Required in JTA. Explain the transactional attribute RequiredNew in JTA. Explain the transactional attribute Mandatory. What are the different transactional attributes? What is Java Transaction Service (JTS)? What is X/Open XA architecture? What is @Transactional annotation? Does the J2EE platform support nested transactions? Should I put a transactional attribute on an asynchronous action such as sending an email? Can an entity bean use bean-managed transaction demarcation? Difference between Global transaction and local transaction. Are JTA global transactions? What is XA transaction?

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Concurrent collections

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Java / Java Transactions (JTA)

Difference between a transaction and distributed transaction.

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