Package org.apache.openjpa.jdbc.meta

Examples of org.apache.openjpa.jdbc.meta.ValueMapping

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     * given columns.
     */
    private void where(Object oid, ClassMapping mapping, Column[] toCols,
        Column[] fromCols, Object[] vals, Column[] constCols, PathJoins pj,
        JDBCStore store) {
        ValueMapping embed = mapping.getEmbeddingMapping();
        if (embed != null) {
            where(oid, embed.getFieldMapping().getDefiningMapping(),
                toCols, fromCols, vals, constCols, pj, store);
            return;
        }

        // only bother to pack pk values into array if app id
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            elem = field.getElementMapping().getIndependentTypeMappings()[0];
        return res.load(elem, store, fetch, joins);
    }

    protected Joins join(Joins joins, ClassMapping elem) {
        ValueMapping vm = field.getElementMapping();
        ForeignKey fk = vm.getForeignKey(elem);
        ClassMapping owner = field.getDefiningMapping();
        while (fk.getPrimaryKeyTable() != owner.getTable()) {
            joins = owner.joinSuperclass(joins, false);
            owner = owner.getJoinablePCSuperclassMapping();
            if (owner == null)
                throw new InternalException();
        }
        return joins.joinRelation(field.getName(), fk, elem,
            vm.getSelectSubclasses(), true, true);
    }
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    public void map(boolean adapt) {
        field.getValueInfo().assertNoSchemaComponents(field, !adapt);
        field.getKeyMapping().getValueInfo().assertNoSchemaComponents
            (field.getKey(), !adapt);

        ValueMapping elem = field.getElementMapping();
        if (elem.getTypeCode() != JavaTypes.PC || elem.isEmbeddedPC()
            || !elem.getTypeMapping().isMapped())
            throw new MetaDataException(_loc.get("not-elem-relation", field));

        // check for named inverse
        FieldMapping mapped = field.getMappedByMapping();
        FieldMappingInfo finfo = field.getMappingInfo();
        ValueMappingInfo vinfo = elem.getValueInfo();
        boolean criteria = vinfo.getUseClassCriteria();
        if (mapped != null) {
            mapped.resolve(mapped.MODE_META | mapped.MODE_MAPPING);
            if (!(mapped.getStrategy() instanceof RelationFieldStrategy))
                throw new MetaDataException(_loc.get("not-inv-relation",
                    field, mapped));
            vinfo.assertNoSchemaComponents(elem, !adapt);
            elem.setForeignKey(mapped.getForeignKey
                (field.getDefiningMapping()));
            elem.setColumns(mapped.getDefiningMapping().
                getPrimaryKeyColumns());
            elem.setJoinDirection(ValueMapping.JOIN_EXPECTED_INVERSE);
            elem.setUseClassCriteria(criteria);

            field.setOrderColumn(finfo.getOrderColumn(field,
                mapped.getForeignKey().getTable(), adapt));
            field.setOrderColumnIO(finfo.getColumnIO());
            return;
        }

        // map inverse foreign key in related table
        ForeignKey fk = vinfo.getInverseTypeJoin(elem, field.getName(), adapt);
        elem.setForeignKey(fk);
        elem.setColumnIO(vinfo.getColumnIO());
        elem.setColumns(elem.getTypeMapping().getPrimaryKeyColumns());
        elem.setJoinDirection(ValueMapping.JOIN_EXPECTED_INVERSE);
        elem.setUseClassCriteria(criteria);
        elem.mapConstraints(field.getName(), adapt);

        field.setOrderColumn(finfo.getOrderColumn(field, fk.getTable(),
            adapt));
        field.setOrderColumnIO(finfo.getColumnIO());
    }
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    public void initialize() {
        Column order = field.getOrderColumn();
        _orderInsert = field.getOrderColumnIO().isInsertable(order, false);
        _orderUpdate = field.getOrderColumnIO().isUpdatable(order, false);

        ValueMapping elem = field.getElementMapping();
        Log log = field.getRepository().getLog();
        if (field.getMappedBy() == null
            && elem.getUseClassCriteria() && log.isWarnEnabled()) {
            ForeignKey fk = elem.getForeignKey();
            if (elem.getColumnIO().isAnyUpdatable(fk, false))
                log.warn(_loc.get("class-crit-owner", field));
        }
    }
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        throws SQLException {
        if (field.getMappedBy() != null)
            return;

        // if nullable, null any existing inverse columns that refer to this obj
        ValueMapping elem = field.getElementMapping();
        ColumnIO io = elem.getColumnIO();
        ForeignKey fk = elem.getForeignKey();
        if (!elem.getUseClassCriteria() && io.isAnyUpdatable(fk, true)) {
            assertInversable();
            Row row = rm.getAllRows(fk.getTable(), Row.ACTION_UPDATE);
            row.setForeignKey(fk, io, null);
            row.whereForeignKey(fk, sm);
            rm.flushAllRows(row);
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        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;
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        ClassMapping cm = field.getElementMapping().getTypeMapping();
        return cm.toDataStoreValue(val, cm.getPrimaryKeyColumns(), store);
    }

    public Joins join(Joins joins, boolean forceOuter) {
        ValueMapping elem = field.getElementMapping();
        ClassMapping[] clss = elem.getIndependentTypeMappings();
        if (clss.length != 1)
            throw RelationStrategies.unjoinable(elem);
        if (forceOuter)
            return joins.outerJoinRelation(field.getName(),
                elem.getForeignKey(clss[0]), clss[0],
                elem.getSelectSubclasses(), true, true);
        return joins.joinRelation(field.getName(), elem.getForeignKey(clss[0]),
            clss[0], elem.getSelectSubclasses(), true, true);
    }
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        return joins.joinRelation(field.getName(), elem.getForeignKey(clss[0]),
            clss[0], elem.getSelectSubclasses(), true, true);
    }

    private void assertInversable() {
        ValueMapping elem = field.getElementMapping();
        if (elem.getIndependentTypeMappings().length != 1)
            throw RelationStrategies.uninversable(elem);
    }
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        if (pstate.field != null) {
            switch (pstate.field.getTypeCode()) {
                case JavaTypes.MAP:
                case JavaTypes.ARRAY:
                case JavaTypes.COLLECTION:
                    ValueMapping elem = pstate.field.getElementMapping();
                    if (pstate.joinedRel && elem.getTypeCode() == JavaTypes.PC)
                        return elem.getTypeMapping().getPrimaryKeyColumns();
                    if (elem.getColumns().length > 0)
                        return elem.getColumns();
                    return pstate.field.getColumns();
                case JavaTypes.PC:
                    if (pstate.joinedRel)
                        return pstate.field.getTypeMapping().
                            getPrimaryKeyColumns();
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    /**
     * Return whether the given source field joins to the given target field.
     */
    private static boolean isJoinedField(FieldMapping src, boolean key,
        FieldMapping target) {
        ValueMapping vm;
        switch (src.getTypeCode()) {
            case JavaTypes.ARRAY:
            case JavaTypes.COLLECTION:
                vm = src.getElementMapping();
                break;
            case JavaTypes.MAP:
                vm = (key) ? src.getKeyMapping() : src.getElementMapping();
                break;
            default:
                vm = src;
        }
        if (vm.getJoinDirection() != ValueMapping.JOIN_FORWARD)
            return false;
        ForeignKey fk = vm.getForeignKey();
        if (fk == null)
            return false;
       
        // foreign key must join to target columns
        Column[] rels = fk.getColumns();
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Related Classes of org.apache.openjpa.jdbc.meta.ValueMapping

  • org.apache.openjpa.jdbc.kernel.exps.PCPath
  • org.apache.openjpa.jdbc.meta.strats.EmbeddedClassStrategy
  • org.apache.openjpa.jdbc.meta.strats.EmbedValueHandler
  • org.apache.openjpa.jdbc.meta.strats.MapTableFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.ObjectIdClassStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationMapInverseKeyFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationMapTableFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationToManyInverseKeyFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationToManyTableFieldStrategy
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