将Activiti 5 BPMN进程迁移到Flowable 6

Question

我正在将我的Activiti5流程实例迁移到Flowable6.5，请遵循https://blog.Flowable.org/2019/08/07/migration-of-a-bpmn-process/和https://Flowable.com/open-source/docs/bpmn/ch09-processinstanceMigration/#process-instance-migration-exportance的Flowable指南

由于创建ProcessInstanceMigrationBuilder的方法被移动到ProcessMigrationService，所以我的代码看起来像

processMigrationService
    .createProcessInstanceMigrationBuilder()
    .migrateToProcessDefinition(v6ProcessDefinition.getId()) // I checked it using engineVersion <> Flowable5Util.V5_ENGINE_TAG
    .migrate(processInstance.getId())

org.flowable.common.engine.api.FlowableException: Flowable 5 process definitions are not supported
    at org.flowable.engine.impl.dynamic.AbstractDynamicStateManager.resolveActiveExecution(AbstractDynamicStateManager.java:186) ~[flowable-engine-6.5.0.jar:6.5.0]
    at org.flowable.engine.impl.dynamic.AbstractDynamicStateManager.resolveMoveExecutionEntityContainers(AbstractDynamicStateManager.java:108) ~[flowable-engine-6.5.0.jar:6.5.0]
    at org.flowable.engine.impl.migration.ProcessInstanceMigrationManagerImpl.doMigrateProcessInstance(ProcessInstanceMigrationManagerImpl.java:425) ~[flowable-engine-6.5.0.jar:6.5.0]
    at org.flowable.engine.impl.migration.ProcessInstanceMigrationManagerImpl.migrateProcessInstance(ProcessInstanceMigrationManagerImpl.java:390) ~[flowable-engine-6.5.0.jar:6.5.0]
    at org.flowable.engine.impl.ProcessMigrationServiceImpl.migrateProcessInstance(ProcessMigrationServiceImpl.java:62) ~[flowable-engine-6.5.0.jar:6.5.0]
    at org.flowable.engine.impl.migration.ProcessInstanceMigrationBuilderImpl.migrate(ProcessInstanceMigrationBuilderImpl.java:138) ~[flowable-engine-6.5.0.jar:6.5.0]

但是当Flowable在我的v5 bpmn流程实例中执行一些逻辑时，我得到了一个异常，即“不支持Flowable 5流程定义”。我在这里感到困惑，Flowable提供的API的目的是将v5的bpmn流程实例迁移到v6，当我运行它时，它说我的流程定义不受支持。

Answer 1

迁移API的目的是支持在可流动的6个流程实例的不同流程定义版本之间进行迁移。

不支持将流程实例从Activiti/Flowable5迁移到Flowable6，因为它们具有不同的结构。兼容性层在那里，所以您可以保持旧的可流动的5个流程实例与可流动的6个流程实例并行运行。