Setting up JBoss database for deployment

[hattifnat]

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)?

[kukeltje]

if you read the documentation, you'll see that:
- you have to point jbpm to a database in the hibernate config file (hibernate is no database!!) either by configuring a database directly or by pointing to a datasource.
- jbpm (hibernate) will create the tables if they do not exist

[hattifnat]

Thanks a lot - now I understand how it should work and what is happening here. But the current state is such:
I started the JBoss server, so I presume I have the Hypersonic database running (my web browser jmx console shows it as StateString: Running).
I should link the hypersonic.cfg.xml to this database.
I can see that DatabasePath of the HypersonicDB is "/usr/local/jbpm-starters-kit-3.1.4/jbpm-server/server/jbpm/data/hypersonic/localDB". I should point the cfg file to this path.
I open the default src/main/config/hibernate.cfg.xml file from the project which contains such entries:

<property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
 <property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="hibernate.connection.url">jdbc:hsqldb:mem:.;sql.enforce_strict_size=true</property>
 <property name="hibernate.connection.username">sa</property>
 <property name="hibernate.connection.password"></property>

 <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>

As much as I understand the crucial is the entry

<property name="hibernate.connection.url">jdbc:hsqldb:mem:.;sql.enforce_strict_size=true</property>

So try to put there "jdbc:hsqldb:/usr/local/jbpm-starters-kit-3.1.4/jbpm-server/server/jbpm/data/hypersonic/localDB"
but this doesn't work...
I'm sure I still don't quite understand how this database should be linked. Could someone explain it to me? Am I going the right way at all? Thanks for any help :)

[hattifnat]

Alright, I did one more thing - in HSQL Database Manager from jmx console I did File > Connect with default settings - which are exactly the same as the defaults in hibernate.cfg.xml (password, user, driver and URL - jdbc:hsqldb:mem:.). I restored the default cfg file, so now I have

<property name="hibernate.connection.url">jdbc:hsqldb:mem:.;sql.enforce_strict_size=true</property>

back. But it still doesn't work. What am I missing now?

[hattifnat]

Doh.. that was more stupid than I could think ;( I simply was editing a hibernate.cfg.xml file from another project... Anyway, for future generations - the "jdbc:hsqldb:/usr/local/jbpm-starters-kit-3.1.4/jbpm-server/server/jbpm/data/hypersonic/localDB" is working fine.