Flowable源码注释（五十六）事务上下文工厂类_flowable springtransactioncontext-优快云博客

本文主要探讨Flowable中用于处理事务的TransactionContextFactory类，包括SpringTransactionContextFactory和StandaloneMybatisTransactionContextFactory。这些工厂类在流程引擎的事务管理中扮演关键角色，确保在不同环境下正确地创建和管理事务上下文。

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Flowable源码地址：https://github.com/flowable/flowable-engine

Flowable-6.7.2 源码注释地址：https://github.com/solojin/flowable-6.7.2-annotated

事务上下文工厂类，包路径：org.flowable.common.engine.impl.cfg

TransactionContextFactory 事务上下文工厂类

/**
 * 事务上下文工厂类
 *
 * @author Tom Baeyens
 */
public interface TransactionContextFactory {

    TransactionContext openTransactionContext(CommandContext commandContext);

}

SpringTransactionContextFactory Spring事务上下文工厂类

package org.flowable.common.spring;

import org.flowable.common.engine.impl.cfg.TransactionContext;
import org.flowable.common.engine.impl.cfg.TransactionContextFactory;
import org.flowable.common.engine.impl.interceptor.CommandContext;
import org.springframework.transaction.PlatformTransactionManager;

/**
 * Spring事务上下文工厂类
 *
 * @author Frederik Heremans
 */
public class SpringTransactionContextFactory implements TransactionContextFactory {

    protected PlatformTransactionManager transactionManager;
    protected Integer transactionSynchronizationAdapterOrder;

    public SpringTransactionContextFactory(PlatformTransactionManager transactionManager) {
        this(transactionManager, null);
    }

    public SpringTransactionContextFactory(PlatformTransactionManager transactionManager, Integer transactionSynchronizationAdapterOrder) {
        this.transactionManager = transactionManager;
        this.transactionSynchronizationAdapterOrder = transactionSynchronizationAdapterOrder;
    }

    @Override
    public TransactionContext openTransactionContext(CommandContext commandContext) {
        return new SpringTransactionContext(transactionManager, commandContext, transactionSynchronizationAdapterOrder);
    }

}

StandaloneMybatisTransactionContextFactory 事务上下文工厂类

package org.flowable.common.engine.impl.cfg.standalone;

import org.flowable.common.engine.impl.cfg.TransactionContext;
import org.flowable.common.engine.impl.cfg.TransactionContextFactory;
import org.flowable.common.engine.impl.interceptor.CommandContext;

/**
 * Mybatis事务上下文工厂类
 *
 * @author Tom Baeyens
 */
public class StandaloneMybatisTransactionContextFactory implements TransactionContextFactory {

    @Override
    public TransactionContext openTransactionContext(CommandContext commandContext) {
        return new StandaloneMybatisTransactionContext(commandContext);
    }
}