JOTM :: Core's distributed transaction processing technology revealed the secret

JOTM :: Core's distributed transaction processing technology revealed the secret Distributed transactions are one of the key technologies for data consistency in distributed environments.JOTM :: Core framework is an open source Java transaction manager, which provides strong support to handle distributed transactions.This article will reveal the distributed transaction processing technology in the JOTM :: core framework, and provide related programming code and configuration. 1. What is distributed transaction processing? Distributed transactions refer to the operation involving multiple resources. It is necessary to ensure that these operations are either successful or all failed.Distributed transactions refer to managing and handling these cross -multiple resources in distributed systems. 2. JOTM :: Core Framework Overview JOTM :: Core is a Java transaction manager, which provides a reliable mechanism to achieve distributed transactions.It has the following characteristics: -JOTM :: Core supports JTA (Java Transaction API) specifications, which means that it can integrate with applications that meet the JTA specifications. -In it provides an integrated architecture that can be integrated with different resource managers (such as databases, message queues, etc.). -JOTM :: Core also uses an embedded design that can be easily embedded in the application without having to run independently. 3. JOTM :: Core Framework Steps The following is the basic steps for processing distributed transactions in JOTM :: CORE framework: Step 1: Introduce JOTM :: CORE framework First of all, you need to introduce the JOTM :: core framework in the dependence of the project. For example, add the following dependencies through Maven: <dependency> <groupId>org.objectweb.jotm</groupId> <artifactId>jotm-core</artifactId> <version>2.1.11</version> </dependency> Step 2: Create a resource manager In distributed transactions, multiple resources (such as databases, message queues, etc.) may be involved.For each resource, a corresponding resource manager needs to be created.The resource manager is responsible for tracking and managing the status of resources. Step 3: Start the transaction In JOTM :: CORE, you can use the `JOTM.START () method to start a new distributed transaction.This will create a transaction context and associate it to the current thread. Step 4: Executive transaction operation Inside the transaction, a series of operations can be performed (such as database operations, message sending, etc.).All these operations will be performed in the same transaction, either successful or rolling. Step 5: Submit or roll back transactions After completing all transaction operations, you can submit transactions by calling the method of calling `JOTM.com Mit ()`, or call the method to roll back the transaction back and forth.Submitting operations will make all operations take effect, and the rollback operation will revoke all operations. 4. Example code The following is a simple sample code that uses JOTM :: CORE framework to process distributed transactions: // Step 2: Create a resource manager ResourceManager resourceManager = new ResourceManager(); ResourceManager.setConnectionProvider ResourceManager.SettransactionManager ResourceManager.start (); // Start the resource manager // Step 3: Start the transaction TransactionManager jotm = TransactionManager.getTransactionManager(); jotm.start (); // Starting transactions try { // Step 4: Executive transaction operation // Execute the database operation Connection conn = resourceManager.getConnection(); Statement stmt = conn.createStatement(); stmt.executeUpdate("INSERT INTO table_name (column1, column2) VALUES ('value1', 'value2')"); stmt.close(); conn.close(); // Execute other operations ... // Step 5: Submit transaction jotm.commit(); } catch (Exception e) { // Abnormal treatment jotm.rollback(); } finally { // Clean up resources resourceManager.stop(); } The above example code shows how to use JOTM :: CORE framework to handle distributed transactions.In practical applications, more operations and abnormal processing logic can be added as needed. Summarize: Distributed transactions are one of the core technologies for building a reliable distributed system.JOTM :: Core framework, as a powerful Java transaction manager, provides reliable support to handle distributed transactions.By introducing frameworks, creating resource managers, starting transactions, executing transactions, and submitting or rolling transactions, you can effectively use JOTM :: Core framework to handle distributed transactions.