JTA

Transactions are provided as part of a JTA binding, which allows transactions to be acquired from an OSGi service.

This does not mean that application-managed entity managers cannot be configured as JTA entity managers.

The JDBC approach is attractive due to its simplicity; the JTA approach offers greater flexibility.

Typically, the only parts that needs changing are the JNDI references for the JTA and non-JTA datasources.

A typical configuration is a container environment for a JTA transaction with three JNDI-registered data sources.

A driver that implements these interfaces will be able to participate in JTA transactions.

This article only requires you to have a basic understanding of the JTA.

Transaction Management: The new JTA support enables the cache to participate as an XA resource in JTA transactions.

JDBC transaction demarcation is simpler than JTA transaction demarcation, but JTA provides greater flexibility.

There is a set of methods in JTA which "packages" your traditional JDBC calls into the Two-Phase-Commit protocol.

Use local transactions if you don't need to use JTA because JTA requires many more resources and is much slower than local transactions.

Always remember that XA connections are participating in a JTA transaction.

Updates to the cache and the database are wrapped in the same JTA transaction so that the cache and database are always synchronized.

To demarcate a transaction with JTA, the application invokes methods on the javax. transaction. UserTransaction interface.

Updates database in a JTA transaction; updates cache in the same transaction.

Other services and technologies that may be found in a J2EE Server bundle include EJBs, Connectors, JMS, JTA, etc.

However, as stated, the application-managed entity manager can still be configured using JTA.

We illustrate local transactions with JPA using the SAMPLE database, but we use both the databases for illustrating JTA transactions.

The servlet demonstrates how to combine the JTA-aware MovieDAO and the Java Message Service in a single transaction, as shown in Listing 8.

The following example ( Listing 3) demonstrates a small application that implements the Two-Phase-Commit protocol using JTA.

The above logic makes the act of processing a message a logical participant in the JTA transaction.

If a JTA manager is required, a simple yet elegant solution is to use the jca connector from Jackrabbit contrib package.

The JTA is a well-defined transaction service that provides J2EE application developers with a service they can use directly.

Next, we'll see how transaction demarcation is done using JTA.

The example in this article demonstrated you how to use JTA to realize the Two-Phase-Commit protocol in Java.

First of all, you need the right JDK when programming JTA applications.

Even when you have more than one datasource, you don't need JTA unless you have transactions spanning more than one datasource.

The Java application that contains SQL and JTA calls.

The classes imported in line 30-33 are necessary to work with JTA.

The method implementation uses the JTA API to start local transactions that control access to EIS1 and EIS2.

Both database and cache must support JTA.

Ehcache 2. 1 (beta version was recently released) provides the JTA support for Hibernate.

JTA is part of the J2EE specifications.

JTA is the J2EE solution to transaction services.

While in the J2EE domain the transaction model used is the JTA.

We've discussed how to demarcate transactions with both JDBC and JTA.

See Resources to learn more about transaction management with JTA.

When programming with JTA you have to use the Type 2 or 4 JDBC driver.

Both legacy and universal drivers have type 2 implementations that support JTA and are available in DB2 v8. 1. 2 and up.

Objective: To study the effect of JTA on the glucose tolerance and serum glucose level in normal animals.

To enable an ehcache as a participant in the JTA Transaction, just have the following attribute

Research on the JTA and Information Processing Standards

JTA methods for transaction control

Requirements for Two-Phase-Commit with JTA

Create the new JTA data source with the following properties