删除jbpm流程实例出错，那位帮我看看

我使用spring-module工具，调用jBPM提供的方法 GraphSession.deleteProcessInstance()。按理说，既然jBPM提供了方法来删除流程实例，那么就应该把相关的东西统统都删掉才对，可是看错误信息，似乎还得调用这个方法的人来删除相关对象。

是不是我不应该调用这个方法？是不是jBPM提供了其他的删除流程实例的方法我没有找到呢？


代码如下：

	public void deleteProcessInstance(final Long processInstanceId) {
		this.jbpmTemplate.execute(new JbpmCallback() {
			@Override
			public Object doInJbpm(JbpmContext context) throws JbpmException {
				context.getGraphSession().deleteProcessInstance(processInstanceId);
				return null;
			}
		});
	}

错误信息如下：

2007-11-12 11:11:55,859 ERROR [org.hibernate.event.def.AbstractFlushingEventListener] - Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:92)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:87)
	at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:222)
	at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2479)
	at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2697)
	at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:74)
	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:146)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
	at org.springframework.orm.hibernate3.SpringSessionSynchronization.beforeCommit(SpringSessionSynchronization.java:126)
	at org.springframework.transaction.support.TransactionSynchronizationUtils.triggerBeforeCommit(TransactionSynchronizationUtils.java:48)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerBeforeCommit(AbstractPlatformTransactionManager.java:835)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:645)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:632)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:314)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:117)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy16.removeRequestOrderByBusinessDpt(Unknown Source)
	at cn.com.gxlu.fiberscheduler.web.controller.fiberapply.FiberApplyController.deleteFiberApply(FiberApplyController.java:202)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:428)
	at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:366)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:857)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:475)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:440)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at cn.com.gxlu.fiberscheduler.web.util.CharactorEncodingFilter.doFilter(CharactorEncodingFilter.java:32)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.BatchUpdateException: ORA-02292: 违反完整约束条件 (FIBERSCHEDULERJBPM.FK_LOG_TASKINST) - 已找到子记录日志

	at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367)
	at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:8727)
	at org.apache.tomcat.dbcp.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
	... 52 more