I'm trying to create a simple web app using ejb3, jboss and the jbosside. The files come mainly from the persistence trailblazer. I'm trying to use a Mysql database in a persistence context ( and not using the jboss default datasource) as discussed in the TrailBlazer, found here:
http://trailblazer.demo.jboss.com/EJB3Trail/persistence/config/index.html where it says: anonymous wrote : "It would be nice to configure the database and connections settings for each | application or any set of entity beans. EJB 3.0 allows you do exactly via the | concept of persistence context." However, no matter what I do the persistent context is, apparently, not injected into the slsb. I get the errors during deployment as follows: anonymous wrote : | . | . | . | 08:21:59,515 WARN [ServiceController] Problem starting service jboss.j2ee:service=EJB3,name=org.jboss.ejb3demo.CalculatorBean | java.lang.RuntimeException: unable to find: java:/managedEntityFactories/CalcPersistenceContext | at org.jboss.ejb3.injection.PersistenceContextHandler.getManagedEntityManagerFactory(PersistenceContextHandler.java:85) | at org.jboss.ejb3.injection.PersistenceContextHandler.loadFieldInjectors(PersistenceContextHandler.java:169) | at org.jboss.ejb3.injection.PersistenceContextHandler.loadInjectors(PersistenceContextHandler.java:134) | at org.jboss.ejb3.EJBContainer.resolveInjectors(EJBContainer.java:397) | at org.jboss.ejb3.EJBContainer.initializePool(EJBContainer.java:330) | at org.jboss.ejb3.EJBContainer.start(EJBContainer.java:283) | at org.jboss.ejb3.SessionContainer.start(SessionContainer.java:48) | at org.jboss.ejb3.stateless.StatelessContainer.start(StatelessContainer.java:63) | at org.jboss.ejb3.stateless.StatelessManager.startService(StatelessManager.java:93) | . | . | . | at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:203) | at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:182) | Caused by: javax.naming.NameNotFoundException: CalcPersistenceContext not bound | at org.jnp.server.NamingServer.getBinding(NamingServer.java:514) | at org.jnp.server.NamingServer.getBinding(NamingServer.java:522) | at org.jnp.server.NamingServer.getObject(NamingServer.java:528) | at org.jnp.server.NamingServer.lookup(NamingServer.java:281) | | I'm confused about how to package the files, about which dtd is valid for persistence.xml, persistence.xml location, the use/non-use of .par/.ear files, -ds.xml files, etc. My question is how do you package an EJB 3.0 project in JBoss that uses a persistence context, as in the code below? And, what am I doing wrong such that the persistent context is not being injected? Environment: Windows XP JBoss 4.0.3 SP1 Java 1.5.0_05 Here are the project files SLSB: Calculator.java package org.jboss.ejb3demo; | | import java.util.Collection; | | | public interface Calculator { | | public void addFund (String name, double growthrate); | public void addInvestor (String name, int start, int end); | | public double calculate (int fundId, int personId, double saving); | | public Collection<Fund> getFunds (); | public Collection <Investor> getInvestors (); | public Collection <TimedRecord> getRecords (); | public Collection <TimedRecord> filterRecords (double low, double high); | public Collection<TimedRecord> getRecordsById (); | public void updateExchangeRate (double newrate); | | } | CalculatorBean.java package org.jboss.ejb3demo; | | import javax.ejb.*; | import javax.persistence.*; | | import java.sql.Timestamp; | import java.util.Collection; | import java.util.Iterator; | | @Stateless | public class CalculatorBean implements Calculator { | | @PersistenceContext (unitName="CalcPersistenceContext") | protected EntityManager em; | | public void addFund (String name, double growthrate) { | Fund fund = new Fund (name, growthrate); | em.persist (fund); | } | | public void addInvestor (String name, int start, int end) { | Investor investor = new Investor (name, start, end); | em.persist (investor); | } | | public double calculate (int fundId, int investorId, double saving) { | | Investor investor = | em.find(Investor.class, | Integer.valueOf(investorId)); | Fund fund = | em.find(Fund.class, | Integer.valueOf(fundId)); | | int start = investor.getStartAge(); | int end = investor.getEndAge(); | double growthrate = fund.getGrowthrate(); | | double tmp = Math.pow(1. + growthrate / 12., 12. * (end - start) + 1); | double result = saving * 12. * (tmp - 1) / growthrate; | Timestamp ts = new Timestamp (System.currentTimeMillis()); | | TimedRecord rec = | new TimedRecord (fund, investor, saving, result, ts); | em.persist (rec); | | return result; | } | | public Collection<Fund> getFunds () { | return em.createQuery("from Fund f").getResultList(); | } | public Collection <Investor> getInvestors () { | return em.createQuery("from Investor p").getResultList(); | } | public Collection <TimedRecord> getRecords () { | return em.createQuery("from TimedRecord r order by r.ts desc").getResultList(); | } | public Collection <TimedRecord> filterRecords (double low, double high) { | return em.createQuery( | "from TimedRecord r where r.result > :low AND r.result < :high") | .setParameter ("low", new Double (low)) | .setParameter ("high", new Double (high)) | .getResultList(); | } | public Collection <TimedRecord> getRecordsById () { | return em.createQuery("from TimedRecord r order by r.id desc").getResultList(); | } | | public void updateExchangeRate (double newrate) { | Collection <TimedRecord> rc = em.createQuery("from TimedRecord r").getResultList(); | for (Iterator iter = rc.iterator(); iter.hasNext();) { | TimedRecord r = (TimedRecord) iter.next(); | r.setSaving(r.getSaving() * newrate); | r.setResult(r.getResult() * newrate); | } | // em.flush(); | } | | } | Entity Beans: Fund.java package org.jboss.ejb3demo; | | import javax.persistence.*; | import java.io.Serializable; | | @Entity | @Table(name = "fund") | public class Fund implements Serializable { | private int id; | private String name; | private double growthrate; | | public Fund () { } | | public Fund (String name, double growthrate) { | this.name = name; | this.growthrate = growthrate; | } | | @Id(generate = GeneratorType.AUTO) | public int getId () { | return id; | } | | public void setId (int id) { | this.id = id; | } | | public String getName () { | return name; | } | | public void setName (String name) { | this.name = name; | } | | public double getGrowthrate () { | return growthrate; | } | | public void setGrowthrate (double growthrate) { | this.growthrate = growthrate; | } | | } Investor.java package org.jboss.ejb3demo; | | import javax.persistence.*; | import java.io.Serializable; | | @Entity | @Table(name = "investor") | public class Investor implements Serializable { | private int id; | private String name; | private int startAge; | private int endAge; | | public Investor () { } | | public Investor (String name, int startAge, int endAge) { | this.name = name; | this.startAge = startAge; | this.endAge = endAge; | } | | @Id(generate = GeneratorType.AUTO) | public int getId () { | return id; | } | | public void setId (int id) { | this.id = id; | } | | public String getName () { | return name; | } | | public void setName (String name) { | this.name = name; | } | | public int getStartAge () { | return startAge; | } | public void setStartAge (int startAge) { | this.startAge = startAge; | } | | public int getEndAge () { | return endAge; | } | public void setEndAge (int endAge) { | this.endAge = endAge; | } | | } Record.java package org.jboss.ejb3demo; | | import javax.persistence.*; | import java.io.Serializable; | | @Entity | @Table(name = "record") | @Inheritance(discriminatorValue="B") | @DiscriminatorColumn(name="record_type") | public class Record implements Serializable { | protected int id; | protected Fund fund; | protected Investor investor; | protected double saving; | protected double result; | | public Record () { } | | public Record (Fund fund, Investor investor, double saving, double result) { | this.fund = fund; | this.investor = investor; | this.saving = saving; | this.result = result; | } | | @Id(generate = GeneratorType.AUTO) | public int getId () { | return id; | } | | public void setId (int id) { | this.id = id; | } | | @ManyToOne(optional=false) | @JoinColumn(name="my_fundid") | public Fund getFund () { | return fund; | } | | public void setFund (Fund fund) { | this.fund = fund; | } | | @ManyToOne(optional=false) | // Use the system-specified join column | public Investor getInvestor () { | return investor; | } | | public void setInvestor (Investor investor) { | this.investor = investor; | } | | public double getSaving () { | return saving; | } | | public void setSaving (double saving) { | this.saving = saving; | } | | public double getResult () { | return result; | } | | public void setResult (double result) { | this.result = result; | } | | } TimedRecord.java package org.jboss.ejb3demo; | | import javax.persistence.*; | import java.sql.Timestamp; | import java.io.Serializable; | | @Entity | @Inheritance(discriminatorValue="T") | public class TimedRecord extends Record | implements Serializable { | | private Timestamp ts; | | public TimedRecord () { } | | public TimedRecord (Fund fund, Investor investor, | double saving, double result, | Timestamp ts) { | this.fund = fund; | this.investor = investor; | this.saving = saving; | this.result = result; | this.ts = ts; | } | | public Timestamp getTs () { | return ts; | } | | public void setTs (Timestamp ts) { | this.ts = ts; | } | | } JSP: ( I will elide these files for now, as I believe my problem is elsewhere ) addfund.jsp addinvestor.jsp calculator.jsp filter.jsp hello.jsp update.jsp Other Files: web.xml | <?xml version="1.0" encoding="UTF-8"?> | <web-app version="2.4" | xmlns="http://java.sun.com/xml/ns/j2ee"; | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; | xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";> | | </web-app> persistence.xml <persistence> | <persistence-unit name="CalcPersistenceContext"> | <jta-data-source>java:/MySqlDS</jta-data-source> | <jar-file>../authors-beans.ejb3</jar-file> | <properties> | <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/> | <property name="hibernate.hbm2ddl.auto" value="create"/> | <property name="hibernate.connection.driver_class" | value="com.mysql.jdbc.Driver"/> | <property name="hibernate.connection.username" | value="root"/> | <property name="hibernate.connection.password" | value="root"/> | <property name="hibernate.connection.url" | value="jdbc:mysql://localhost:3306/calc"/> | <property name="hibernate.show_sql" value="true"/> | </properties> | </persistence-unit> | </persistence> mysql-ds.xml in jbosshome/server/default/deploy (is this needed?) <?xml version="1.0" encoding="UTF-8"?> | | <!-- $Id: mysql-ds.xml,v 1.3.2.1 2004/12/01 11:46:00 schrouf Exp $ --> | <!-- Datasource config for MySQL using 3.0.9 available from: | http://www.mysql.com/downloads/api-jdbc-stable.html | --> | | <datasources> | <local-tx-datasource> | <jndi-name>MySqlDS</jndi-name> | <connection-url>jdbc:mysql://localhost:3306/calc</connection-url> | <driver-class>com.mysql.jdbc.Driver</driver-class> | <user-name>root</user-name> | <password>root</password> | <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name> | <!-- sql to call when connection is created | <new-connection-sql>some arbitrary sql</new-connection-sql> | --> | <!-- sql to call on an existing pooled connection when it is obtained from pool | <check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql> | --> | | <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) --> | <metadata> | <type-mapping>mySQL</type-mapping> | </metadata> | </local-tx-datasource> | </datasources> I'm new to JBoss and EJB 3.0. I have used Hibernate in other projects. If this discussion has already been had, please give me short/terse answer letting me know where. I searched this forum and googled persistence context, but I haven't seen any definitive answer concerning my questions. One thing that has made this particularly confusing is that, given the recent release of the spec., I am not sure what I'm reading (in the forum/on the web) is for the new spec. or is out of date. Any help whatever is appreciated DJ View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3921499#3921499 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3921499 ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. 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