[JBoss Seam] - Injection not working calling methods between EJBs
by pierospinelli
I try to explain the situation in words as first, since the code would be too long.
I have a Statfull bean that is an abstract class (AB1).
I have:
- a Normal statless bean (SL1)
- a Statfull bean (SFa) that inherits from AB1 and Inject the local interface of SL1.
- a Statfull bean (SFb) that inherits from AB1 and keeps a reference to the local interface of SFa.
All works fine: JSF pages with references to SFa or SFb are able to call actions defined in them or in their superclass.
Even when SFa & SFb call one another using their local interfaces all works fine, except in case SFb calls SFa.methodX() and SFa.methodX() try to use the injected instance of SL1: it find it always null.
It seams as injection does not work when an EJB is called (through its local interface) by another EJB. There is some limit I do not know in doing this?
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18Â years, 11Â months
[JBoss Seam] - Re: extended persistence context with JavaBeans ?
by sirandreus
hi norman,
thank you for your quick help.
The requests happened inside a Session Scope, but (if I understand correctly) still in different conversations. Thus I added a @Begin annotation at the factory method, which is called once, when the page is loaded.
I haven´t annotated any method with @End. However, if the Session ends, will the Conversation end as well ? Will the persistence context be cleared as well ?
Here is the code: (the Message class and the xhtml code is like in the original tutorial)
| @Name("messageManager")
| @Scope(ScopeType.SESSION)
| @Transactional
| public class MessageManager {
|
| @DataModel
| private List<Message> messageList;
|
| @DataModelSelection
| @Out(required = false)
| private Message message;
|
| @In
| private EntityManager entityManager;
|
| @Logger
| private Log logger;
|
| @Begin
| @Factory("messageList")
| public void findMessages() {
|
| Message m1 = new Message("T1");
| m1.setTitle("T1");
| m1.setText("text1");
| m1.setDatetime(new Date());
|
| Message m2 = new Message("T2");
| m2.setTitle("T2");
| m2.setText("text2");
| m2.setDatetime(new Date());
|
| Message m3 = new Message("T3");
| m3.setTitle("T3");
| m3.setText("text3");
| m3.setDatetime(new Date());
|
| entityManager.persist(m1);
| entityManager.persist(m2);
| entityManager.persist(m3);
|
| this.messageList = entityManager.createQuery("from Message").getResultList();
| logger.info("messageList initialized");
| }
|
| public void select() {
| message.setRead(true);
| }
|
| public void delete() {
| entityManager.remove(message);
|
| messageList.remove(message);
| message = null;
| }
|
| }
|
|
|
thank you,
Andreas
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073848#4073848
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18Â years, 11Â months
[JBoss jBPM] - JBoss + JBPM + Mysql - Deployment is not going through
by jitendrasupe
I am new bee to JBPM. Trying to deploy the sample application given in the jbpm-jpdl-suite-3.2.1.
I am following documentation given for jbpm-jpdl-suite-3.2.1 Getting started but getting following errors while starting the server from the folder "jbpm-jpdl-suite-3.2.1\jbpm-jpdl-3.2.1\server\bin" with command "run -c jbpm".
2007-08-14 11:13:06,616 DEBUG [org.hibernate.loader.hql.QueryLoader] bindNamedParameters() Tue Aug 14 11:13:06 IST 2007 -> now [3]
2007-08-14 11:13:06,616 DEBUG [org.hibernate.loader.hql.QueryLoader] bindNamedParameters() JbpmJobExector:172.17.225.114:1 -> lockOwner [2]
2007-08-14 11:13:06,647 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
2007-08-14 11:13:06,663 DEBUG [org.hibernate.util.JDBCExceptionReporter] could not execute query [select job0_.ID_ as ID1_26_, job0_.VERSION_ as VERSION3_26_, job0_.DUEDATE_ as DUEDATE4_26_, job0_.PROCESSINSTANCE_ as PROCESSI5_26_, job0_.TOKEN_ as TOKEN6_26_, job0_.TASKINSTANCE_ as TASKINST7_26_, job0_.ISSUSPENDED_ as ISSUSPEN8_26_, job0_.ISEXCLUSIVE_ as ISEXCLUS9_26_, job0_.LOCKOWNER_ as LOCKOWNER10_26_, job0_.LOCKTIME_ as LOCKTIME11_26_, job0_.EXCEPTION_ as EXCEPTION12_26_, job0_.RETRIES_ as RETRIES13_26_, job0_.NAME_ as NAME14_26_, job0_.REPEAT_ as REPEAT15_26_, job0_.TRANSITIONNAME_ as TRANSIT16_26_, job0_.ACTION_ as ACTION17_26_, job0_.GRAPHELEMENTTYPE_ as GRAPHEL18_26_, job0_.GRAPHELEMENT_ as GRAPHEL19_26_, job0_.NODE_ as NODE20_26_, job0_.CLASS_ as CLASS2_26_ from JBPM_JOB job0_ where (job0_.LOCKOWNER_ is null or job0_.LOCKOWNER_=?) and job0_.RETRIES_>0 and job0_.DUEDATE_<=? and job0_.ISSUSPENDED_<>1 order by job0_.DUEDATE_ asc]
com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1 job0_.ID_ as ID1_26_, job0_.VERSION_ as VERSION3_26_, job0_.DUEDATE_ as DUEDAT' at line 1
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2941)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1623)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1715)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3249)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1268)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1403)
at org.jboss.resource.adapter.jdbc.CachedPreparedStatement.executeQuery(CachedPreparedStatement.java:90)
at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:236)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
at org.hibernate.loader.Loader.doQuery(Loader.java:662)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2145)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:756)
at org.jbpm.db.JobSession.getFirstAcquirableJob(JobSession.java:40)
at org.jbpm.job.executor.JobExecutorThread.acquireJobs(JobExecutorThread.java:111)
at org.jbpm.job.executor.JobExecutorThread.run(JobExecutorThread.java:56)
2007-08-14 11:13:06,663 WARN [org.hibernate.util.JDBCExceptionReporter] SQL Error: 1064, SQLState: 42000
2007-08-14 11:13:06,663 ERROR [org.hibernate.util.JDBCExceptionReporter] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1 job0_.ID_ as ID1_26_, job0_.VERSION_ as VERSION3_26_, job0_.DUEDATE_ as DUEDAT' at line 1
2007-08-14 11:13:06,663 ERROR [org.jbpm.db.JobSession] org.hibernate.exception.SQLGrammarException: could not execute query
2007-08-14 11:13:06,663 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
2007-08-14 11:13:06,663 DEBUG [org.jbpm.svc.Services] closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService@aa6635
2007-08-14 11:13:06,663 DEBUG [org.jbpm.persistence.db.DbPersistenceService] committing hibernate transaction org.hibernate.transaction.JDBCTransaction@11d5566
Here are configuration files I have changed for configuring Mysql DB
--- hibernate.cfg --
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- mysql dialect -->
org.hibernate.dialect.MySQLDialect
<!-- JDBC connection properties (begin) -->
com.mysql.jdbc.Driver
jdbc:mysql://172.17.225.171:3306/jbpm_sample
root
password
org.hibernate.transaction.JDBCTransactionFactory
<!-- JDBC connection properties (end) -->
org.hibernate.cache.HashtableCacheProvider
<!-- ############################################ -->
<!-- # mapping files with external dependencies # -->
<!-- ############################################ -->
<!-- following mapping file has a dependendy on -->
<!-- 'bsh-{version}.jar'. -->
<!-- uncomment this if you don't have bsh on your -->
<!-- classpath. you won't be able to use the -->
<!-- script element in process definition files -->
<!-- following mapping files have a dependendy on -->
<!-- 'jbpm-identity.jar', mapping files -->
<!-- of the pluggable jbpm identity component. -->
<!-- Uncomment the following 3 lines if you -->
<!-- want to use the jBPM identity mgmgt -->
<!-- component. -->
<!-- identity mappings (begin) -->
<!-- identity mappings (end) -->
<!-- following mapping files have a dependendy on -->
<!-- the JCR API -->
<!-- ###################### -->
<!-- # jbpm mapping files # -->
<!-- ###################### -->
<!-- hql queries and type defs -->
<!-- graph.action mapping files -->
<!-- graph.def mapping files -->
<!-- graph.node mapping files -->
<!-- context.def mapping files -->
<!-- taskmgmt.def mapping files -->
<!-- module.def mapping files -->
<!-- bytes mapping files -->
<!-- file.def mapping files -->
<!-- scheduler.def mapping files -->
<!-- graph.exe mapping files -->
<!-- module.exe mapping files -->
<!-- context.exe mapping files -->
<!-- job mapping files -->
<!-- taskmgmt.exe mapping files -->
<!-- logging mapping files -->
</session-factory>
</hibernate-configuration>
--- jbpm-ds.xml ----
<?xml version="1.0" encoding="UTF-8"?>
<local-tx-datasource>
<jndi-name>JbpmDS</jndi-name>
<connection-url>jdbc:mysql://172.17.225.171:3306/jbpm_sample</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>root</user-name>
password
<min-pool-size>1</min-pool-size>
<max-pool-size>5</max-pool-size>
<idle-timeout-minutes>0</idle-timeout-minutes>
<track-statements/>
<prepared-statement-cache-size>32</prepared-statement-cache-size>
<type-mapping>MySQL</type-mapping>
</local-tx-datasource>
Please help in solving this issue in case you are aware of .
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073840#4073840
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18Â years, 11Â months