a begginer Conceptual question!
Dear friends,
I am a begginer with JBPM , I have some conceptual questions and I'll be so thankful if some one can help me:)
I can't understand the difference between hypersonic in memory data base and the real database(e.g MySql),must we use both of them for running a java application or a web application?
for example when we use jbpmSession.getGraphSession().saveProcessDefinition(processDefinition),
where are the process definition will be saved?on a hypersonic sql data base or in our database?I know the form parameters and process variables are saving in our real database.
I wrote a web application like WebSale application and
make a (process project)in eclipse which contains all the needed libraries,
and wrote the following code in my struts Action class
:
static JbpmSessionFactory jbpmSessionFactory =
JbpmSessionFactory.buildJbpmSessionFactory();
static
{
jbpmSessionFactory.getJbpmSchema().createSchema();
}
ProcessDefinition processDefinition=
ProcessDefinition.parseXmlString("//..the xml defenition...");
JbpmSession jbpmSession = jbpmSessionFactory.openJbpmSession();
jbpmSession.beginTransaction();
jbpmSession.getGraphSession().saveProcessDefinition(processDefinition);
jbpmSession.commitTransaction();
jbpmSession.close();
when I tried to run it following exception has been occured
java.sql.SQLException: socket creation error
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.jdbcConnection.(Unknown Source)
at org.hsqldb.jdbcDriver.getConnection(Unknown Source)
at org.hsqldb.jdbcDriver.connect(Unknown Source)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:68)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:87)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1.acquireResource(C3P0PooledConnectionPool.java:83)
at com.mchange.v2.resourcepool.BasicResourcePool.assimilateResource(BasicResourcePool.java:884)
at com.mchange.v2.resourcepool.BasicResourcePool.acquireUntil(BasicResourcePool.java:601)
at com.mchange.v2.resourcepool.BasicResourcePool.access$400(BasicResourcePool.java:31)
at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1079)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:354)
...
1-should I include more extra settings?
2-Is it a hibernate problem? I'm begginer with hibernate too.
3-what are the refrences I should study to find the answers?
