Strategy pattern Transaction Manager in Spring Framework

The Strategy pattern transaction manager is a design mode used to manage transactions in the Spring framework. It encapsulates the logic of transaction management into different policies, and the client selects appropriate policies to manage transactions at runtime. In the Spring framework, the Strategy pattern transaction manager is implemented through the interface org. springframework. transaction. PlatformTransactionManager. This interface defines a series of methods for opening, committing, and rolling back transactions, and can interact with different transaction managers. The following is the complete source code of the Strategy pattern transaction manager in the Spring framework: package org.springframework.transaction; public interface PlatformTransactionManager { TransactionStatus getTransaction(TransactionDefinition definition) throws TransactionException; void commit(TransactionStatus status) throws TransactionException; void rollback(TransactionStatus status) throws TransactionException; } In the above code, the PlatformTransactionManager interface defines three methods: 1. getTransaction: Retrieves a new transaction based on the given transaction definition and returns a TransactionStatus object representing the current transaction status. 2. commit: Commit the status of a given transaction, marking it as completed. 3. Rollback: Rolls back the state of a given transaction and marks it as rolled back. Summary: The Strategy pattern transaction manager in the Spring framework implements the PlatformTransactionManager interface, which provides methods to manage the opening, submission and rollback of transactions. The Strategy pattern decouples the specific implementation of transaction management logic from the client code, and different transaction management strategies can be selected according to needs. This design pattern makes transaction management more flexible and extensible, and conforms to Object-oriented design principles.