Examples of javax.jdo.Transaction

javax.jdo.Transaction
The JDO Transaction interface provides for initiation and completion of transactions under user control. It is a sub-interface of the {@link PersistenceManager}that deals with options and transaction demarcation.
Transaction options include whether optimistic concurrency control should be used for the current transaction, whether instances may hold values in the cache outside transactions, and whether values should be retained in the cache after transaction completion. These options are valid for both managed and non-managed transactions.
Transaction initiation and completion methods have similar semantics to javax.transaction.UserTransaction when used outside a managed environment. When used in a managed environment, transaction initiation and completion methods may only be used with bean-managed transaction semantics. @version 2.3

    public Map<Integer, Object> getProjectIdsAndBuildDefinitionsIdsBySchedule( int scheduleId )
        throws ContinuumStoreException
    {
        PersistenceManager pm = getPersistenceManager();


        Transaction tx = pm.currentTransaction();


        try
        {
            tx.begin();


            Extent extent = pm.getExtent( Project.class, true );


            Query query = pm.newQuery( extent );


            query.declareParameters( "int scheduleId" );


            query.declareImports( "import org.apache.maven.continuum.model.project.BuildDefinition" );


            query.declareVariables( "BuildDefinition buildDef" );


            query.setFilter( "buildDefinitions.contains(buildDef) && buildDef.schedule.id == scheduleId" );


            query.setResult( "this.id, buildDef.id" );


            List result = (List) query.execute( scheduleId );


            Map projects = new HashMap();


            if ( result != null && !result.isEmpty() )
            {
                for ( Iterator i = result.iterator(); i.hasNext(); )
                {
                    Object[] obj = (Object[]) i.next();


                    List buildDefinitions;


                    if ( projects.get( obj[0] ) != null )
                    {
                        buildDefinitions = (List) projects.get( obj[0] );
                    }
                    else
                    {
                        buildDefinitions = new ArrayList();


                        projects.put( obj[0], buildDefinitions );
                    }


                    buildDefinitions.add( obj[1] );
                }


                return projects;
            }
            if ( !projects.isEmpty() )
            {
                return projects;
            }
        }
        finally
        {
            tx.commit();


            rollback( tx );
        }


        return null;

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    public Map<Integer, Object> getProjectGroupIdsAndBuildDefinitionsIdsBySchedule( int scheduleId )
        throws ContinuumStoreException
    {
        PersistenceManager pm = getPersistenceManager();


        Transaction tx = pm.currentTransaction();


        try
        {
            tx.begin();


            Extent extent = pm.getExtent( ProjectGroup.class, true );


            Query query = pm.newQuery( extent );


            query.declareParameters( "int scheduleId" );


            query.declareImports( "import org.apache.maven.continuum.model.project.BuildDefinition" );


            query.declareVariables( "BuildDefinition buildDef" );


            query.setFilter( "buildDefinitions.contains(buildDef) && buildDef.schedule.id == scheduleId" );


            query.setResult( "this.id, buildDef.id" );


            List result = (List) query.execute( scheduleId );


            Map projectGroups = new HashMap();


            if ( result != null && !result.isEmpty() )
            {
                for ( Iterator i = result.iterator(); i.hasNext(); )
                {
                    Object[] obj = (Object[]) i.next();


                    List buildDefinitions;


                    if ( projectGroups.get( obj[0] ) != null )
                    {
                        buildDefinitions = (List) projectGroups.get( obj[0] );
                    }
                    else
                    {
                        buildDefinitions = new ArrayList();


                        projectGroups.put( obj[0], buildDefinitions );
                    }


                    buildDefinitions.add( obj[1] );
                }


                return projectGroups;
            }
        }
        finally
        {
            tx.commit();


            rollback( tx );
        }
        return null;
    }

View Full Code Here

    public List<BuildDefinition> getAllBuildDefinitions()
        throws ContinuumStoreException
    {
        PersistenceManager pm = getPersistenceManager();


        Transaction tx = pm.currentTransaction();


        try
        {
            tx.begin();


            Extent extent = pm.getExtent( BuildDefinition.class, true );


            Query query = pm.newQuery( extent );


            List result = (List) query.execute();


            return result == null ? Collections.EMPTY_LIST : (List<BuildDefinition>) pm.detachCopyAll( result );
        }
        finally
        {
            tx.commit();


            rollback( tx );
        }
    }

View Full Code Here

        }
    }
    
    /** */
    private void  createObjects(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            p1 = new PCPoint(1,3);
            p2 = new PCPoint(2,4);
            p3 = new PCPoint(3,5);
            p4 = new PCPoint(4,6);
            p5 = new PCPoint(5,7);
            
            pm.makePersistent(p1);
            pm.makePersistent(p2);
            pm.makePersistent(p3);
            pm.makePersistent(p4);
            pm.makePersistent(p5);
            tx.commit();
        }
        finally {
            if ((tx != null) && tx.isActive())
                tx.rollback();
        }
    }

View Full Code Here

        }
    }


    /* test deletePersistent (Object pc) */
    private void runTestDeletePersistent(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            try {
                pm.deletePersistent(p1);
                fail(ASSERTION_FAILED,
                     "pm.deletePersistent(Object) with pc instance managed by another pm should throw exception");
            }
            catch (JDOUserException ex) {
                // expected exception
            }
            tx.rollback();
        }
        finally {
            if (tx.isActive())
                tx.rollback();
        }
    }

View Full Code Here

        }
    }
    
    /* test deletePersistentAll (Collection pcs) */
    private void runTestDeletePersistentAll1(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            Collection col1 = new HashSet();
            col1.add(p2);
            col1.add(p3);


            try {
                pm.deletePersistentAll(col1);
                fail(ASSERTION_FAILED,
                     "pm.deletePersistent(Collection) with pc instance(s) managed by another pm should throw exception");
            }
            catch (JDOUserException ex) {
                // expected exception
            } 
            tx.rollback();
        }
        finally {
            if (tx.isActive())
                tx.rollback();
        }
    }

View Full Code Here

        }
    }


    /* test deletePersistentAll (Object[] o) */
    private void runTestDeletePersistentAll2(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();


            Collection col1 = new HashSet();
            col1.add(p4);
            col1.add(p5);
            Object[] obj1= col1.toArray();
            try {
                pm.deletePersistentAll(obj1);
                fail(ASSERTION_FAILED,
                     "pm.deletePersistent(Object[]) with pc instance(s) managed by another pm should throw exception");
            }
            catch (JDOUserException ex) {
                // expected exception
            } 
            tx.rollback();
        }
        finally {
            if (tx.isActive())
                tx.rollback();
        }
    }

View Full Code Here

        }


        /** */
        public void run() {
            String threadName = Thread.currentThread().getName();
            Transaction tx = pm.currentTransaction();
            try {
                ThreadSafe.this.logger.debug("[" + threadName + "]: running");
                tx.begin();
                pm.makePersistent(pc);
                tx.commit();
                tx = null;
                winning((PCPoint) pc);
                complete();
            } 
            catch (JDOUserException ex) {
                ThreadSafe.this.logger.debug("[" + threadName +
                                             "]: throws expected " + ex);
                catchNumber++;
                complete();
            } 
            finally {
                if ((tx != null) && tx.isActive()) {
                    tx.rollback();
                }
                pm.close();
            }
        }    // run

View Full Code Here

    /** */
    public void test() {
      Properties pmfProperties = loadPMF2Properties();
        PersistenceManagerFactory pmf2 = JDOHelper.getPersistenceManagerFactory(pmfProperties);
        PersistenceManager pm2 = pmf2.getPersistenceManager();
        Transaction tx2 = pm2.currentTransaction();
        
        pm = getPM();
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            tx2.begin();
            
            PCPoint p11 = new PCPoint(110, 120);
            PCPoint p12 = new PCPoint(120, 140);
            PCRect rect1 = new PCRect (0, p11, p12);
            pm.makePersistent (rect1);
            
            PCPoint p21 = new PCPoint(210, 220);
            PCPoint p22 = new PCPoint(220, 240);
            PCRect rect2 = new PCRect (0, p21, p22);
            pm2.makePersistent (rect2);
            
            tx.commit();
            tx2.commit();
        
            tx.begin();
            tx2.begin();
            
            PCPoint p11a = findPoint (pm, 110, 120);
            if (p11a != p11) {
                fail(ASSERTION_FAILED, 
                     "unexpected PCPoint instance, expected: 110, 120, found: " + p11a.getX() + ", " + p11a.getY());
            }
            
            PCPoint p21a = findPoint (pm2, 210, 220);
            if (p21a != p21) {
                fail(ASSERTION_FAILED, 
                     "unexpected PCPoint instance, expected: 210, 220, found: " + p21a.getX() + ", " + p21a.getY());
            }
            
            tx.commit();
            tx = null;
            tx2.commit();
            tx2 = null;
        }
        finally {

View Full Code Here

    /** */
    private void generatePersistentInstances()
    {
        if( doPersistentInstancesExist() ) return;
        int i;
        Transaction t = pm.currentTransaction();
        t.begin();
        for( i = 0; i < 50; ++i ){
            StateTransitionObj sto = new StateTransitionObj(i);
            sto.writeField(i);
            pm.makePersistent(sto);
        }
        t.commit();
        if( !doPersistentInstancesExist() )
            if (debug)
                logger.debug("StateTransitions unable to create instances of StateTransitionsObj");
    }

View Full Code Here

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