Geronimo plug -in, connector 1.6: Implement efficient transaction management in the Java class library (JTA11)
Geronimo plug -in, connector 1.6: Implement efficient transaction management in the Java class library (JTA11)
Summary: In the development of Java, transaction management is a very important field, which can ensure the atomic, consistency, isolation and persistence of database operations.Geronimo plug -in and connectors 1.6 is a Java class library that provides efficient transaction management functions. It supports the implementation of the JTA (Java transaction API) 11 specifications.This article will introduce the characteristics and usage methods of Geronimo plug -in and connectors 1.6, and attach some Java code examples.
1. Geronimo plug -in, connector 1.6 Introduction
The Geronimo plug -in and connectors 1.6 is part of the Apache Geronimo project. It provides an efficient transaction management solution that helps developers to achieve complex transaction processing in Java applications.The plug -in is based on JTA 1.2 and JTS (Java transaction services) and supports the implementation of the JTA11 specification.
2. The characteristics of Geronimo plug -in, connector 1.6
-Profile distributed transaction processing: Geronimo plug -in, connectors 1.6 can handle transactions across multiple databases and resource managers to ensure the atomicity and consistency of the operation.
-Adrifying transaction isolation level: The plug -in supports multiple transaction isolation levels, including unsurremmming, reading, repeated read and serialization.
-Suka -recovery mechanism: When system failure or application crashes, the Geronimo plug -in and connectors 1.6 can restore interrupted transactions to ensure the durability of transactions.
-In support simple programming models: Developers can use simple programming models to manage affairs, including the operation of starting, submission and rollback transactions.
-Super with flexible resource management: The plug -in supports adding and managing different types of resources, such as database connections, JMS (Java message service) resources, and JCA (Java connection architecture) adapter.
3. How to use the Geronimo plug -in and connectors 1.6
The following are simple sample code that uses the Geronimo plug -in and connectors 1.6 to realize transaction management:
import javax.transaction.UserTransaction;
public class TransactionExample {
public void performTransaction() {
try {
// Get the usertransaction object
UserTransaction transaction = com.arjuna.ats.jta.UserTransaction.userTransaction();
// Starting transaction
transaction.begin();
// Execute the database operation
// ...
// Submit a transaction
transaction.commit();
} catch (Exception e) {
// Roll back transactions
transaction.rollback();
e.printStackTrace();
}
}
}
The above sample code demonstrates how to perform transactions with the userTransactions of the Geronimo plug -in and connectors 1.6.By obtaining the UserTransaction object, developers can start, submit or roll back transactions.When abnormalities occur, the code rolls back and prints abnormal information.
4. Summary
Geronimo plug -in and connectors 1.6 are a powerful transaction management solution that provides Java developers with efficient handling tools and libraries.By supporting the implementation of the JTA11 specification, the plug -in can meet the complex transaction processing needs.Using the Geronimo plug -in and connectors 1.6, developers can simplify the development process and ensure the consistency and atomicity of the database operation.
