Examples of javax.jdo.PersistenceManager.deletePersistent()

javax.jdo.PersistenceManager.deletePersistent()
Delete the persistent instance from the data store. This method must be called in an active transaction. The data store object will be removed at commit. Unlike makePersistent, which makes the closure of the instance persistent, the closure of the instance is not deleted from the data store. This method has no effect if the instance is already deleted in the current transaction. This method throws JDOUserException if the instance is transient or is managed by another PersistenceManager. @param pc a persistent instance

    Assert.assertEquals("Bad group name", gName, grp.getName());
    
    /* Delete the group.
     */
    pm.currentTransaction().begin();
    pm.deletePersistent(grp);
    pm.currentTransaction().commit();
        pm.close();
       
        // Check that the group has been deleted
        pm = pmf.getPersistenceManager();

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                Iterator it = col.iterator();
                while(it.hasNext()) {
                    Object o = it.next();
                    Assert.assertNotNull("null object in the query result"
                        + cs[i].getName(), o);
                    pm.deletePersistent(o);


                }
                query.close(col);
            }
          pm.currentTransaction().commit();

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    /* Delete the group :
     * this should delete the president.
     */
    pm.currentTransaction().begin();
    pm.deletePersistent(grp);
    pm.currentTransaction().commit();
        pm.close();
       
        // Check that the president has been deleted
        pm = pmf.getPersistenceManager();

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        r2 = (Registry) r1.lookup("a");
        Assert.assertNotNull("null instance returned by r1.lookup(a)", r2);
        r3 = (Registry) r1.lookup("b");
        Assert.assertNotNull("null instance returned by r1.lookup(b)", r3);
        pm.currentTransaction().begin();
        pm.deletePersistent(r1);
        pm.deletePersistent(r2);
        pm.deletePersistent(r3);
        pm.currentTransaction().commit();
        pm.close();
    }

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        Assert.assertNotNull("null instance returned by getObjectById", e1);
        Assert.assertEquals("Bad employee name", "e1", e1.getName());
        Assert.assertNotNull("null instance returned by getObjectById", e1.getBoss());
        Assert.assertEquals("Bad boss name", "e2", e1.getBoss().getName());
        pm.currentTransaction().begin();
        pm.deletePersistent(e1);
        pm.deletePersistent(e1.getBoss());
        pm.currentTransaction().commit();
        pm.close();
  }

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        r3 = (Registry) r1.lookup("b");
        Assert.assertNotNull("null instance returned by r1.lookup(b)", r3);
        pm.currentTransaction().begin();
        pm.deletePersistent(r1);
        pm.deletePersistent(r2);
        pm.deletePersistent(r3);
        pm.currentTransaction().commit();
        pm.close();
    }


  public void testA() {

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        Assert.assertEquals("Bad employee name", "e1", e1.getName());
        Assert.assertNotNull("null instance returned by getObjectById", e1.getBoss());
        Assert.assertEquals("Bad boss name", "e2", e1.getBoss().getName());
        pm.currentTransaction().begin();
        pm.deletePersistent(e1);
        pm.deletePersistent(e1.getBoss());
        pm.currentTransaction().commit();
        pm.close();
  }


    public void testCreation2() {

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    /* Delete the group :
     * this should delete both members.
     */
    pm.currentTransaction().begin();
    pm.deletePersistent(grp);
    pm.currentTransaction().commit();
        pm.close();
       
        // Check that the members have been deleted
        pm = pmf.getPersistenceManager();

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        try {
          mem1 = (Member) pm.getObjectById(m1Id, true);
          
          // Delete both members
          pm.currentTransaction().begin();
          pm.deletePersistent(mem1);
          pm.deletePersistent(mem2);
          pm.currentTransaction().commit();
          Assert.fail("Should have thrown a JDOUserException : member 1 has not been deleted");
        }
        catch (JDOUserException jdoEx) {

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        Assert.assertNotNull("null instance returned by getObjectById", e1);
        Assert.assertEquals("Bad employee name", "e1", e1.getName());
        Assert.assertNotNull("null instance returned by getObjectById", e1.getBoss());
        Assert.assertEquals("Bad boss", e1, e1.getBoss());
        pm.currentTransaction().begin();
        pm.deletePersistent(e1);
        pm.currentTransaction().commit();
        pm.close();
    }


    public void testCreation3() {

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