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

     * with the given oid.
     */
    private void updateInverse(StoreContext ctx, Object inverse,
        ClassMapping rel, RowManager rm, OpenJPAStateManager sm, int idx)
        throws SQLException {
        OpenJPAStateManager invsm = RelationStrategies.getStateManager(inverse,
            ctx);
        if (invsm == null)
            return;


        ValueMapping elem = field.getElementMapping();
        ForeignKey fk = elem.getForeignKey();
        ColumnIO io = elem.getColumnIO();
        Column order = field.getOrderColumn();


        int action;
        boolean writeable;
        boolean orderWriteable;
        if (invsm.isNew() && !invsm.isFlushed()) {
            // no need to null inverse columns of new instance
            if (sm == null || sm.isDeleted())
                return;
            writeable = io.isAnyInsertable(fk, false);
            orderWriteable = _orderInsert;
            action = Row.ACTION_INSERT;
        } else if (invsm.isDeleted()) {
            // no need to null inverse columns of deleted instance
            if (invsm.isFlushed() || sm == null || !sm.isDeleted())
                return;
            writeable = true;
            orderWriteable = false;
            action = Row.ACTION_DELETE;
        } else {

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    public void insert(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)
            updateInverse(sm, rel, store, rm);
        else {
            Row row = field.getRow(sm, store, rm, Row.ACTION_INSERT);

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        throws SQLException {
        Row row = field.getRow(sm, store, rm, Row.ACTION_INSERT);
        if (row == null)
            return;


        OpenJPAStateManager em = store.getContext().getStateManager
            (sm.fetchObject(field.getIndex()));
        insert(sm, em, store, rm, row);
    }

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     * @param row expected row for this embedded value
     */
    public void insert(OpenJPAStateManager owner, OpenJPAStateManager sm,
        JDBCStore store, RowManager rm, Row row)
        throws SQLException {
        OpenJPAStateManager em = sm;
        if (em == null)
            em = new NullEmbeddedStateManager(owner, field);
        rm = new EmbeddedRowManager(rm, row);
        FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
        for (int i = 0; i < fields.length; i++)

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            setNullIndicatorColumn(sm, row);
    }


    public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
        throws SQLException {
        OpenJPAStateManager em = store.getContext().getStateManager
            (sm.fetchObject(field.getIndex()));
        boolean newVal = em == null || em.getPCState() == PCState.ECOPY;


        Row row = null;
        if (newVal && field.getJoinForeignKey() != null
            && field.isJoinOuter()) {
            // if our record is in an outer-joined related table and we're not

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     * @param row expected row for this embedded value
     */
    public void update(OpenJPAStateManager owner, OpenJPAStateManager sm,
        JDBCStore store, RowManager rm, Row row)
        throws SQLException {
        OpenJPAStateManager em = sm;
        if (em == null)
            em = new NullEmbeddedStateManager(owner, field);
        rm = new EmbeddedRowManager(rm, row);
        FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
        for (int i = 0; i < fields.length; i++)
            if (em.getDirty().get(i)
                && !em.getFlushed().get(i)
                && !Boolean.TRUE.equals(fields[i].isCustomUpdate(em, store)))
                fields[i].update(em, store, rm);


        if (field.getColumnIO().isUpdatable(0, true))
            setNullIndicatorColumn(sm, row);

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            setNullIndicatorColumn(sm, row);
    }


    public void delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
        throws SQLException {
        OpenJPAStateManager em = null;
        if (sm.getLoaded().get(field.getIndex()))
            em = store.getContext().getStateManager(sm.fetchObject
                (field.getIndex()));
        Row row = field.getRow(sm, store, rm, Row.ACTION_DELETE);
        delete(sm, em, store, rm, row);

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        else
            row.setObject(col, val);
    }


    public Boolean isCustomInsert(OpenJPAStateManager sm, JDBCStore store) {
        OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
            (field.getIndex()));
        Boolean custom = isCustom(INSERT, sm, em, store);
        if (Boolean.TRUE.equals(custom) && _synthetic)
            return null;
        return custom;

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            return null;
        return custom;
    }


    public Boolean isCustomUpdate(OpenJPAStateManager sm, JDBCStore store) {
        OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
            (field.getIndex()));
        Boolean custom = isCustom(UPDATE, sm, em, store);
        if (Boolean.TRUE.equals(custom) && _synthetic)
            return null;
        return custom;

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            return null;
        return custom;
    }


    public Boolean isCustomDelete(OpenJPAStateManager sm, JDBCStore store) {
        OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
            (field.getIndex()));
        return isCustom(DELETE, sm, em, store);
    }

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