Examples of org.apache.openjpa.kernel.OpenJPAStateManager

org.apache.openjpa.kernel.OpenJPAStateManager
Interface implemented by OpenJPA state managers. Each state manager manages the state of a single persistence capable instance. The state manager is also responsible for all communications about the instance to the {@link StoreManager}. The fetchXXXField and storeXXXField methods can be used to get and set fields of the managed persistent object. Most back-end code, however, should use the similar fetchXXX and storeXXX methods in place of the field methods. These methods function just like the field methods, but also pass the value through the externalizer and factory the field may have. @author Abe White

    public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
        throws SQLException {
        if (field.getMappedBy() != null)
            return;


        OpenJPAStateManager rel = RelationStrategies.getStateManager
            (sm.fetchObjectField(field.getIndex()), store.getContext());


        if (field.getJoinDirection() == field.JOIN_INVERSE) {
            nullInverse(sm, rm);
            updateInverse(sm, rel, store, rm);

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        if (field.getMappedBy() != null)
            return;


        if (field.getJoinDirection() == field.JOIN_INVERSE) {
            if (sm.getLoaded().get(field.getIndex())) {
                OpenJPAStateManager rel = RelationStrategies.getStateManager(sm.
                    fetchObjectField(field.getIndex()), store.getContext());
                updateInverse(sm, rel, store, rm);
            } else
                nullInverse(sm, rm);
        } else {
            field.deleteRow(sm, store, rm);


            // if our foreign key has a delete action, we need to set the
            // related object so constraints can be evaluated
            OpenJPAStateManager rel = RelationStrategies.getStateManager
                (sm.fetchObjectField(field.getIndex()), store.getContext());
            if (rel != null) {
                ForeignKey fk = field.getForeignKey((ClassMapping)
                    rel.getMetaData());
                if (fk.getDeleteAction() == ForeignKey.ACTION_RESTRICT ||
                    fk.getDeleteAction() == ForeignKey.ACTION_CASCADE) {
                    Row row = field.getRow(sm, store, rm, Row.ACTION_DELETE);
                    row.setForeignKey(fk, null, rel);
                }

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                        PersistenceCapable pc = (PersistenceCapable) itr.next();


                        if (pc == null)
                            continue;


                        OpenJPAStateManager sm = (OpenJPAStateManager) pc.
                            pcGetStateManager();
                        FieldMapping[] fmd = ((ClassMapping) sm.getMetaData()).
                            getFieldMappings();
                        for (int j = 0; j < fmd.length; j++) {
                            Object oid = sm.getIntermediate(fmd[j].getIndex());
                            // if oid was setIntermediate() previously
                            // and it is the same as the owner,
                            // then set the inverse relation
                            if (oid != null &&
                                oid.equals(owner.getObjectId())) {
                                sm.storeObject(fmd[j].getIndex(),
                                    owner.getPersistenceCapable());
                                break;
                            }
                        }
                    }

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        Object ret = (cols.length == 1) ? null : new Object[cols.length];


        // in the past we've been lenient about being able to translate objects
        // from other persistence contexts, so try to get sm directly from
        // instance before asking our context
        OpenJPAStateManager sm;
        if (ImplHelper.isManageable(obj)) {
          PersistenceCapable pc = ImplHelper.toPersistenceCapable(obj,
                    getRepository().getConfiguration());
            sm = (OpenJPAStateManager) pc.pcGetStateManager();
            if (sm == null) {
              ret = getValueFromUnmanagedInstance(obj, cols, true);
            } else if (sm.isDetached()) {
              obj = store.getContext().find(sm.getObjectId(), false, null);
              sm = store.getContext().getStateManager(obj);
            }
        } else {
            sm = store.getContext().getStateManager(obj);
        }

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        }


        // set auto assign values
        if (autoAssign != null && autoAssign.length > 0
            && row.getPrimaryKey() != null) {
            OpenJPAStateManager sm = row.getPrimaryKey();
            ClassMapping mapping = (ClassMapping) sm.getMetaData();
            Object val;
            for (int i = 0; i < autoAssign.length; i++) {
                val = _dict.getGeneratedKey(autoAssign[i], _conn);
                mapping.assertJoinable(autoAssign[i]).setAutoAssignedValue(sm,
                    _store, autoAssign[i], val);
            }
            sm.setObjectId(
                ApplicationIds.create(sm.getPersistenceCapable(), mapping));
        }
    }

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    public boolean contains(Object entity) {
        assertNotCloseInvoked();
        if (entity == null)
            return false;
        OpenJPAStateManager sm = _broker.getStateManager(entity);
        if (sm == null
            && !ImplHelper.isManagedType(getConfiguration(), entity.getClass()))
            throw new ArgumentException(_loc.get("not-entity",
                entity.getClass()), null, null, true);
        return sm != null && !sm.isDeleted();
    }

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        return !_broker.isCloseInvoked();
    }


    public void dirty(Object o, String field) {
        assertNotCloseInvoked();
        OpenJPAStateManager sm = _broker.getStateManager(o);
        try {
            if (sm != null)
                sm.dirty(field);
        } catch (Exception e) {
            throw PersistenceExceptions.toPersistenceException(e);
        }
    }

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        Object ret = (cols.length == 1) ? null : new Object[cols.length];


        // in the past we've been lenient about being able to translate objects
        // from other persistence contexts, so try to get sm directly from
        // instance before asking our context
        OpenJPAStateManager sm;
        if (ImplHelper.isManageable(obj))
            sm = (OpenJPAStateManager) (ImplHelper.toPersistenceCapable(obj,
                getRepository().getConfiguration()))
                .pcGetStateManager();
        else

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                    .getMetaDataRepositoryInstance().getMetaData(a.getClass(),
                    null, false);
            FieldMetaData fmd = meta.getField("date");
            d = (Date) data.getData(fmd.getIndex());
            Broker broker = JPAFacadeHelper.toBroker(em1);
            OpenJPAStateManager sm = broker.getStateManager(a);
            assertTrue(sm == ((ProxyDate) a.getDate()).getOwner());
            assertEquals(Date.class, d.getClass());
        }
        finally {
            endEm(em0);

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    public boolean contains(Object entity) {
        assertNotCloseInvoked();
        if (entity == null)
            return false;
        OpenJPAStateManager sm = _broker.getStateManager(entity);
        if (sm == null
            && !ImplHelper.isManagedType(getConfiguration(), entity.getClass()))
            throw new ArgumentException(_loc.get("not-entity",
                entity.getClass()), null, null, true);
        return sm != null && !sm.isDeleted();
    }

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