5:14 a.m.
Hello!
As a fresh Jboss user I came to a problem that is basic probably for most of you, but I
cannot find a solution anywhere.
I am using jBPM-starters kit 3.1.4 and working in Eclipse with the JBoss plugin.
I try to create two processes, where one is nested in another as a subflow. The very
simplified version of the problem is such:
Super-process:
<?xml version="1.0" encoding="UTF-8"?>
|
| <process-definition
| xmlns="urn:jbpm.org:jpdl-3.1" name="Super">
| <start-state name="start">
| <transition name="" to="process1"></transition>
| </start-state>
| <process-state name="process1">
| <sub-process name="Sub" />
| <transition name="" to="end1"></transition>
| </process-state>
| <end-state name="end1"></end-state>
| </process-definition>
Sub-process:
<?xml version="1.0" encoding="UTF-8"?>
|
| <process-definition
| xmlns="urn:jbpm.org:jpdl-3.1" name="Sub">
| <start-state name="start">
| <transition name="" to="end1"></transition>
| </start-state>
| <end-state name="end1"></end-state>
| </process-definition>
Then I try to run the super-process in a way suggested in this thread:
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=93504
public class Test {
|
| public static void main(String[] args) {
|
| JbpmContext context = JbpmConfiguration.getInstance()
| .createJbpmContext();
|
| try {
| FileInputStream fis_super = new FileInputStream(
|
"/path/Eclipse/workspace/SubflowTest/src/main/Super/processdefinition.xml");
| FileInputStream fis_sub = new FileInputStream(
|
"/path/Eclipse/workspace/SubflowTest/src/main/Sub/processdefinition.xml");
|
| ProcessDefinition pdload_sub = ProcessDefinition
| .parseXmlInputStream(fis_sub);
| context.deployProcessDefinition(pdload_sub);
|
| ProcessDefinition pdload_super = ProcessDefinition
| .parseXmlInputStream(fis_super);
| context.deployProcessDefinition(pdload_super);
|
| GraphSession gs_caller = context.getGraphSession();
|
| // don't think I necessarily need to reload the process definitions
| // from the session but it doesn't make a difference
| ProcessDefinition pd_sub = gs_caller
| .findLatestProcessDefinition("Sub");
| ProcessDefinition pd_super = gs_caller
| .findLatestProcessDefinition("Super");
|
| ProcessInstance inst = new ProcessInstance(pd_super);
|
| // begin
| Token token = inst.getRootToken();
| ContextInstance contextInst = (ContextInstance) inst
| .getInstance(ContextInstance.class);
|
| System.out.println("getNode().getName(): "
| + token.getNode().getName());
|
| token.signal();
| System.out.println("getNode().getName(): "
| + token.getNode().getName());
| } catch (Exception e) {
| e.printStackTrace();
| } finally {
| context.close();
| }
| }
| }
The result of the execution is the well known "table JBPM_PROCESSDEFINITION not
found" error (exactly:
10:49:44,916 [main] DEBUG DbPersistenceService : beginning hibernate transaction
| 10:49:44,959 [main] WARN JDBCExceptionReporter : SQL Error: -22, SQLState: S0002
| 10:49:44,960 [main] ERROR JDBCExceptionReporter : Table not found in statement [select
top ? processdef0_.ID_ as ID1_4_, processdef0_.NAME_ as NAME2_4_, processdef0_.VERSION_ as
VERSION3_4_, processdef0_.ISTERMINATIONIMPLICIT_ as ISTERMIN4_4_, processdef0_.STARTSTATE_
as STARTSTATE5_4_ from JBPM_PROCESSDEFINITION processdef0_ where processdef0_.NAME_=?
order by processdef0_.VERSION_ desc]
| org.hibernate.exception.SQLGrammarException: could not execute query
| at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:65)
| at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
| at org.hibernate.loader.Loader.doList(Loader.java:2153)
| (...)
| Caused by: java.sql.SQLException: Table not found in statement [select top ?
processdef0_.ID_ as ID1_4_, processdef0_.NAME_ as NAME2_4_, processdef0_.VERSION_ as
VERSION3_4_, processdef0_.ISTERMINATIONIMPLICIT_ as ISTERMIN4_4_, processdef0_.STARTSTATE_
as STARTSTATE5_4_ from JBPM_PROCESSDEFINITION processdef0_ where processdef0_.NAME_=?
order by processdef0_.VERSION_ desc]
| at org.hsqldb.jdbc.Util.throwError(Unknown Source)
| at org.hsqldb.jdbc.jdbcPreparedStatement.<init>(Unknown Source)
| at org.hsqldb.jdbc.jdbcConnection.prepareStatement(Unknown Source)
| (...)
| 10:49:44,968 [main] ERROR GraphSession : org.hibernate.exception.SQLGrammarException:
could not execute query
| org.jbpm.JbpmException: couldn't find process definition 'Sub'
| at org.jbpm.db.GraphSession.findLatestProcessDefinition(GraphSession.java:157)
| at org.jbpm.db.GraphSession.deployProcessDefinition(GraphSession.java:67)
| at org.jbpm.JbpmContext.deployProcessDefinition(JbpmContext.java:173)
| at Test.main(Test.java:26)
| Caused by: org.hibernate.exception.SQLGrammarException: could not execute query
| at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:65)
| at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
| (...)
| Caused by: java.sql.SQLException: Table not found in statement [select top ?
processdef0_.ID_ as ID1_4_, processdef0_.NAME_ as NAME2_4_, processdef0_.VERSION_ as
VERSION3_4_, processdef0_.ISTERMINATIONIMPLICIT_ as ISTERMIN4_4_, processdef0_.STARTSTATE_
as STARTSTATE5_4_ from JBPM_PROCESSDEFINITION processdef0_ where processdef0_.NAME_=?
order by processdef0_.VERSION_ desc]
| at org.hsqldb.jdbc.Util.throwError(Unknown Source)
| at org.hsqldb.jdbc.jdbcPreparedStatement.<init>(Unknown Source)
| at org.hsqldb.jdbc.jdbcConnection.prepareStatement(Unknown Source)
| (...)
| (I trimmed the log)
So one thing I understood from what I read in the forum and in the Internet - i have to
set up the Hibernate database and create a table JBPM_PROCESSDEFINITION. But I
couldn't find a hint on how to to it. Can it be done programatticaly? Or how should I
do it in any other way (preferably nice and easy :P)?
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