Examples with ImplementsMetaData org.datanucleus.metadata.ImplementsMetaData used on opensource projects

Example 1 with ImplementsMetaData

use of org.datanucleus.metadata.ImplementsMetaData in project datanucleus-api-jdo by datanucleus.

the class JDOMetaDataManager method registerPersistentInterface.

/**
 * Method to register a persistent interface and its implementation with the MetaData system.
 * @param imd MetaData for the interface
 * @param implClass The implementation class
 * @param clr ClassLoader Resolver to use
 */
public void registerPersistentInterface(InterfaceMetaData imd, Class implClass, ClassLoaderResolver clr) {
    // Create ClassMetaData for the implementation
    ClassMetaData cmd = new ClassMetaData(imd, ClassUtils.getClassNameForClass(implClass), true);
    cmd.addImplements(new ImplementsMetaData(imd.getFullClassName()));
    // Register the ClassMetaData for the implementation
    registerMetaDataForClass(cmd.getFullClassName(), cmd);
    // Register the metadata for the implementation against this persistent interface
    classMetaDataByInterface.put(imd.getFullClassName(), cmd);
    initialiseClassMetaData(cmd, implClass, clr);
    // Deregister the metadata for the implementation from those "not found"
    if (NucleusLogger.METADATA.isDebugEnabled()) {
        NucleusLogger.METADATA.debug(Localiser.msg("044044", implClass.getName()));
    }
    classesWithoutPersistenceInfo.remove(implClass.getName());
}

Example 2 with ImplementsMetaData

use of org.datanucleus.metadata.ImplementsMetaData in project datanucleus-api-jdo by datanucleus.

the class JDOMetaDataHandler method startElement.

/**
 * Handler method called at the start of an element.
 * @param uri URI of the tag
 * @param localName Local name
 * @param qName Element name
 * @param attrs Attributes for this element
 * @throws SAXException in parsing errors
 */
public void startElement(String uri, String localName, String qName, Attributes attrs) throws SAXException {
    if (charactersBuffer.length() > 0) {
        // Cater for subelements that appear before the end of the body text (save the body text with the
        // parent)
        String currentString = getString().trim();
        if (getStack() instanceof QueryMetaData) {
            ((QueryMetaData) getStack()).setQuery(currentString.trim());
        }
    }
    if (localName.length() < 1) {
        localName = qName;
    }
    try {
        if (localName.equals("jdo")) {
            FileMetaData filemd = (FileMetaData) getStack();
            filemd.setType(MetadataFileType.JDO_FILE);
            filemd.setCatalog(getAttr(attrs, "catalog"));
            filemd.setSchema(getAttr(attrs, "schema"));
        } else if (localName.equals("orm")) {
            FileMetaData filemd = (FileMetaData) getStack();
            filemd.setType(MetadataFileType.JDO_ORM_FILE);
            filemd.setCatalog(getAttr(attrs, "catalog"));
            filemd.setSchema(getAttr(attrs, "schema"));
        } else if (localName.equals("jdoquery")) {
            FileMetaData filemd = (FileMetaData) getStack();
            filemd.setType(MetadataFileType.JDO_QUERY_FILE);
        } else if (localName.equals("fetch-plan")) {
            FileMetaData filemd = (FileMetaData) metadata;
            FetchPlanMetaData fpmd = filemd.newFetchPlanMetadata(getAttr(attrs, "name"));
            fpmd.setMaxFetchDepth(getAttr(attrs, "max-fetch-depth"));
            fpmd.setFetchSize(getAttr(attrs, "fetch-size"));
            pushStack(fpmd);
        } else if (localName.equals("package")) {
            FileMetaData filemd = (FileMetaData) getStack();
            PackageMetaData pmd = filemd.newPackageMetadata(getAttr(attrs, "name"));
            pmd.setCatalog(getAttr(attrs, "catalog"));
            pmd.setSchema(getAttr(attrs, "schema"));
            pushStack(pmd);
        } else if (localName.equals("class")) {
            PackageMetaData pmd = (PackageMetaData) getStack();
            ClassMetaData cmd = newClassObject(pmd, attrs);
            pmd.addClass(cmd);
            pushStack(cmd);
        } else if (localName.equals("interface")) {
            PackageMetaData pmd = (PackageMetaData) getStack();
            InterfaceMetaData imd = newInterfaceObject(pmd, attrs);
            pmd.addInterface(imd);
            pushStack(imd);
        } else if (localName.equals("primary-key")) {
            MetaData md = getStack();
            PrimaryKeyMetaData pkmd = new PrimaryKeyMetaData();
            pkmd.setName(getAttr(attrs, "name"));
            pkmd.setColumnName(getAttr(attrs, "column"));
            if (md instanceof AbstractClassMetaData) {
                ((AbstractClassMetaData) md).setPrimaryKeyMetaData(pkmd);
            } else if (md instanceof JoinMetaData) {
                ((JoinMetaData) md).setPrimaryKeyMetaData(pkmd);
            }
            pushStack(pkmd);
        } else if (localName.equals("implements")) {
            ClassMetaData cmd = (ClassMetaData) getStack();
            ImplementsMetaData imd = new ImplementsMetaData(getAttr(attrs, "name"));
            cmd.addImplements(imd);
            pushStack(imd);
        } else if (localName.equals("property")) {
            MetaData parent = getStack();
            if (parent instanceof AbstractClassMetaData) {
                AbstractClassMetaData acmd = (AbstractClassMetaData) parent;
                PropertyMetaData propmd = newPropertyObject(acmd, attrs);
                acmd.addMember(propmd);
                pushStack(propmd);
            } else if (parent instanceof EmbeddedMetaData) {
                EmbeddedMetaData emd = (EmbeddedMetaData) parent;
                PropertyMetaData propmd = newPropertyObject(emd, attrs);
                emd.addMember(propmd);
                pushStack(propmd);
            } else if (parent instanceof ImplementsMetaData) {
                ImplementsMetaData implmd = (ImplementsMetaData) parent;
                PropertyMetaData propmd = newPropertyObject(implmd, attrs);
                implmd.addProperty(propmd);
                pushStack(propmd);
            } else if (parent instanceof FetchGroupMetaData) {
                FetchGroupMetaData fgmd = (FetchGroupMetaData) parent;
                FetchGroupMemberMetaData fgmmd = new FetchGroupMemberMetaData(fgmd, getAttr(attrs, "name"));
                fgmmd.setRecursionDepth(getAttr(attrs, "recursion-depth"));
                fgmmd.setProperty();
                fgmd.addMember(fgmmd);
                pushStack(fgmmd);
            }
        } else if (localName.equals("datastore-identity")) {
            AbstractClassMetaData acmd = (AbstractClassMetaData) getStack();
            IdentityMetaData idmd = new IdentityMetaData();
            idmd.setColumnName(getAttr(attrs, "column"));
            idmd.setValueStrategy(ValueGenerationStrategy.getIdentityStrategy(getAttr(attrs, "strategy")));
            idmd.setSequence(getAttr(attrs, "sequence"));
            acmd.setIdentityMetaData(idmd);
            pushStack(idmd);
        } else if (localName.equals("inheritance")) {
            MetaData parent = getStack();
            AbstractClassMetaData acmd = (AbstractClassMetaData) parent;
            InheritanceMetaData inhmd = new InheritanceMetaData();
            inhmd.setStrategy(getAttr(attrs, "strategy"));
            acmd.setInheritanceMetaData(inhmd);
            pushStack(inhmd);
        } else if (localName.equals("discriminator")) {
            MetaData md = getStack();
            if (md instanceof InheritanceMetaData) {
                InheritanceMetaData inhmd = (InheritanceMetaData) md;
                DiscriminatorMetaData dismd = inhmd.newDiscriminatorMetadata();
                dismd.setColumnName(getAttr(attrs, "column"));
                dismd.setValue(getAttr(attrs, "value"));
                dismd.setStrategy(getAttr(attrs, "strategy"));
                dismd.setIndexed(getAttr(attrs, "indexed"));
                pushStack(dismd);
            } else if (md instanceof EmbeddedMetaData) {
                EmbeddedMetaData embmd = (EmbeddedMetaData) md;
                DiscriminatorMetaData dismd = embmd.newDiscriminatorMetadata();
                dismd.setColumnName(getAttr(attrs, "column"));
                dismd.setValue(getAttr(attrs, "value"));
                dismd.setStrategy(getAttr(attrs, "strategy"));
                dismd.setIndexed(getAttr(attrs, "indexed"));
                pushStack(dismd);
            }
        } else if (localName.equals("query")) {
            MetaData emd = getStack();
            String name = getAttr(attrs, "name");
            String lang = getAttr(attrs, "language");
            if (!StringUtils.isWhitespace(lang)) {
                if (// Convert to JDOQL
                lang.equals(JDOQuery.JDOQL_QUERY_LANGUAGE)) {
                    lang = QueryLanguage.JDOQL.toString();
                } else if (// Convert to SQL
                lang.equals(JDOQuery.SQL_QUERY_LANGUAGE)) {
                    lang = QueryLanguage.SQL.toString();
                } else if (// Convert to JPQL
                lang.equals(JDOQuery.JPQL_QUERY_LANGUAGE)) {
                    lang = QueryLanguage.JPQL.toString();
                }
            }
            if (emd instanceof ClassMetaData) {
                ClassMetaData cmd = (ClassMetaData) emd;
                if (StringUtils.isWhitespace(name)) {
                    throw new InvalidClassMetaDataException("044154", cmd.getFullClassName());
                }
                QueryMetaData qmd = new QueryMetaData(name);
                qmd.setScope(cmd.getFullClassName());
                qmd.setLanguage(lang);
                qmd.setUnmodifiable(getAttr(attrs, "unmodifiable"));
                qmd.setResultClass(getAttr(attrs, "result-class"));
                qmd.setUnique(getAttr(attrs, "unique"));
                qmd.setFetchPlanName(getAttr(attrs, "fetch-plan"));
                cmd.addQuery(qmd);
                pushStack(qmd);
            } else if (emd instanceof InterfaceMetaData) {
                InterfaceMetaData imd = (InterfaceMetaData) emd;
                if (StringUtils.isWhitespace(name)) {
                    throw new InvalidClassMetaDataException("044154", imd.getFullClassName());
                }
                QueryMetaData qmd = new QueryMetaData(name);
                qmd.setScope(imd.getFullClassName());
                qmd.setLanguage(lang);
                qmd.setUnmodifiable(getAttr(attrs, "unmodifiable"));
                qmd.setResultClass(getAttr(attrs, "result-class"));
                qmd.setUnique(getAttr(attrs, "unique"));
                qmd.setFetchPlanName(getAttr(attrs, "fetch-plan"));
                imd.addQuery(qmd);
                pushStack(qmd);
            } else if (emd instanceof FileMetaData) {
                FileMetaData filemd = (FileMetaData) emd;
                QueryMetaData qmd = filemd.newQueryMetadata(name);
                qmd.setLanguage(lang);
                qmd.setUnmodifiable(getAttr(attrs, "unmodifiable"));
                qmd.setResultClass(getAttr(attrs, "result-class"));
                qmd.setUnique(getAttr(attrs, "unique"));
                qmd.setFetchPlanName(getAttr(attrs, "fetch-plan"));
                pushStack(qmd);
            }
        } else if (localName.equals("sequence")) {
            PackageMetaData pmd = (PackageMetaData) getStack();
            SequenceMetaData seqmd = pmd.newSequenceMetadata(getAttr(attrs, "name"), getAttr(attrs, "strategy"));
            seqmd.setFactoryClass(getAttr(attrs, "factory-class"));
            seqmd.setDatastoreSequence(getAttr(attrs, "datastore-sequence"));
            String seqSize = getAttr(attrs, "allocation-size");
            if (seqSize != null) {
                seqmd.setAllocationSize(seqSize);
            }
            String seqStart = getAttr(attrs, "initial-value");
            if (seqStart != null) {
                seqmd.setInitialValue(seqStart);
            }
            pushStack(seqmd);
        } else if (localName.equals("field")) {
            MetaData md = getStack();
            if (md instanceof FetchGroupMetaData) {
                FetchGroupMetaData fgmd = (FetchGroupMetaData) md;
                FetchGroupMemberMetaData fgmmd = new FetchGroupMemberMetaData(md, getAttr(attrs, "name"));
                fgmmd.setRecursionDepth(getAttr(attrs, "recursion-depth"));
                fgmd.addMember(fgmmd);
                pushStack(fgmmd);
                return;
            }
            FieldMetaData fmd = newFieldObject(md, attrs);
            if (md instanceof ClassMetaData) {
                ClassMetaData cmd = (ClassMetaData) md;
                cmd.addMember(fmd);
            } else if (md instanceof EmbeddedMetaData) {
                EmbeddedMetaData emd = (EmbeddedMetaData) md;
                emd.addMember(fmd);
            } else if (md instanceof ForeignKeyMetaData) {
                ForeignKeyMetaData fkmd = (ForeignKeyMetaData) md;
                fkmd.addMember(fmd.getName());
            } else if (md instanceof IndexMetaData) {
                IndexMetaData imd = (IndexMetaData) md;
                imd.addMember(fmd.getName());
            } else if (md instanceof UniqueMetaData) {
                UniqueMetaData umd = (UniqueMetaData) md;
                umd.addMember(fmd.getName());
            }
            pushStack(fmd);
        } else if (localName.equals("join")) {
            MetaData parent = getStack();
            String tableName = getAttr(attrs, "table");
            String columnName = getAttr(attrs, "column");
            String outer = getAttr(attrs, "outer");
            IndexedValue indexed = IndexedValue.getIndexedValue(getAttr(attrs, "indexed"));
            String unique = getAttr(attrs, "unique");
            String deleteAction = getAttr(attrs, "delete-action");
            JoinMetaData joinmd = null;
            if (parent instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) parent;
                joinmd = fmd.newJoinMetaData();
            } else if (parent instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) parent;
                joinmd = new JoinMetaData();
                cmd.addJoin(joinmd);
            } else if (parent instanceof InheritanceMetaData) {
                InheritanceMetaData inhmd = (InheritanceMetaData) parent;
                joinmd = inhmd.newJoinMetadata();
            } else {
                throw new NucleusUserException("Error processing JDO XML metadata. Found \"join\" with parent " + StringUtils.toJVMIDString(parent) + " - not supported");
            }
            joinmd.setTable(tableName);
            joinmd.setColumnName(columnName);
            joinmd.setOuter(MetaDataUtils.getBooleanForString(outer, false));
            joinmd.setIndexed(indexed);
            joinmd.setUnique(unique);
            joinmd.setDeleteAction(deleteAction);
            pushStack(joinmd);
        } else if (localName.equals("map")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            MapMetaData mapmd = fmd.newMapMetaData();
            mapmd.setKeyType(getAttr(attrs, "key-type"));
            String embKeyStr = getAttr(attrs, "embedded-key");
            if (!StringUtils.isWhitespace(embKeyStr)) {
                mapmd.setEmbeddedKey(Boolean.valueOf(embKeyStr));
            }
            String serKeyStr = getAttr(attrs, "serialized-key");
            if (!StringUtils.isWhitespace(serKeyStr)) {
                mapmd.setSerializedKey(Boolean.valueOf(serKeyStr));
            }
            String depKeyStr = getAttr(attrs, "dependent-key");
            if (!StringUtils.isWhitespace(depKeyStr)) {
                mapmd.setDependentKey(Boolean.valueOf(depKeyStr));
            }
            mapmd.setValueType(getAttr(attrs, "value-type"));
            String embValStr = getAttr(attrs, "embedded-value");
            if (!StringUtils.isWhitespace(embValStr)) {
                mapmd.setEmbeddedValue(Boolean.valueOf(embValStr));
            }
            String serValStr = getAttr(attrs, "serialized-value");
            if (!StringUtils.isWhitespace(serValStr)) {
                mapmd.setSerializedValue(Boolean.valueOf(serValStr));
            }
            String depValStr = getAttr(attrs, "dependent-value");
            if (!StringUtils.isWhitespace(depValStr)) {
                mapmd.setDependentValue(Boolean.valueOf(depValStr));
            }
            pushStack(mapmd);
        } else if (localName.equals("array")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            ArrayMetaData arrmd = fmd.newArrayMetaData();
            arrmd.setElementType(getAttr(attrs, "element-type"));
            String embElemStr = getAttr(attrs, "embedded-element");
            if (!StringUtils.isWhitespace(embElemStr)) {
                arrmd.setEmbeddedElement(Boolean.valueOf(embElemStr));
            }
            String serElemStr = getAttr(attrs, "serialized-element");
            if (!StringUtils.isWhitespace(serElemStr)) {
                arrmd.setSerializedElement(Boolean.valueOf(serElemStr));
            }
            String depElemStr = getAttr(attrs, "dependent-element");
            if (!StringUtils.isWhitespace(depElemStr)) {
                arrmd.setDependentElement(Boolean.valueOf(depElemStr));
            }
            pushStack(arrmd);
        } else if (localName.equals("collection")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            CollectionMetaData collmd = fmd.newCollectionMetaData();
            collmd.setElementType(getAttr(attrs, "element-type"));
            String embElemStr = getAttr(attrs, "embedded-element");
            if (!StringUtils.isWhitespace(embElemStr)) {
                collmd.setEmbeddedElement(Boolean.valueOf(embElemStr));
            }
            String serElemStr = getAttr(attrs, "serialized-element");
            if (!StringUtils.isWhitespace(serElemStr)) {
                collmd.setSerializedElement(Boolean.valueOf(serElemStr));
            }
            String depElemStr = getAttr(attrs, "dependent-element");
            if (!StringUtils.isWhitespace(depElemStr)) {
                collmd.setDependentElement(Boolean.valueOf(depElemStr));
            }
            pushStack(collmd);
        } else if (localName.equals("column")) {
            MetaData md = getStack();
            ColumnMetaData colmd = new ColumnMetaData();
            colmd.setName(getAttr(attrs, "name"));
            colmd.setTarget(getAttr(attrs, "target"));
            colmd.setTargetMember(getAttr(attrs, "target-field"));
            colmd.setJdbcType(getAttr(attrs, "jdbc-type"));
            colmd.setSqlType(getAttr(attrs, "sql-type"));
            colmd.setLength(getAttr(attrs, "length"));
            colmd.setScale(getAttr(attrs, "scale"));
            colmd.setAllowsNull(getAttr(attrs, "allows-null"));
            colmd.setDefaultValue(getAttr(attrs, "default-value"));
            colmd.setInsertValue(getAttr(attrs, "insert-value"));
            // JDO 3.1+
            String pos = getAttr(attrs, "position");
            if (pos != null) {
                colmd.setPosition(pos);
            }
            if (md instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) md;
                fmd.addColumn(colmd);
            } else if (md instanceof AbstractElementMetaData) {
                AbstractElementMetaData elemd = (AbstractElementMetaData) md;
                elemd.addColumn(colmd);
            } else if (md instanceof JoinMetaData) {
                JoinMetaData jnmd = (JoinMetaData) md;
                jnmd.addColumn(colmd);
            } else if (md instanceof IdentityMetaData) {
                IdentityMetaData idmd = (IdentityMetaData) md;
                idmd.setColumnMetaData(colmd);
            } else if (md instanceof ForeignKeyMetaData) {
                ForeignKeyMetaData fkmd = (ForeignKeyMetaData) md;
                fkmd.addColumn(colmd);
            } else if (md instanceof IndexMetaData) {
                IndexMetaData idxmd = (IndexMetaData) md;
                idxmd.addColumn(colmd.getName());
            } else if (md instanceof UniqueMetaData) {
                UniqueMetaData unimd = (UniqueMetaData) md;
                unimd.addColumn(colmd.getName());
            } else if (md instanceof OrderMetaData) {
                OrderMetaData ormd = (OrderMetaData) md;
                ormd.addColumn(colmd);
            } else if (md instanceof DiscriminatorMetaData) {
                DiscriminatorMetaData dismd = (DiscriminatorMetaData) md;
                dismd.setColumnMetaData(colmd);
            } else if (md instanceof VersionMetaData) {
                VersionMetaData vermd = (VersionMetaData) md;
                vermd.setColumnMetaData(colmd);
            } else if (md instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) md;
                cmd.addUnmappedColumn(colmd);
            } else if (md instanceof PrimaryKeyMetaData) {
                PrimaryKeyMetaData pkmd = (PrimaryKeyMetaData) md;
                pkmd.addColumn(colmd);
            }
            pushStack(colmd);
        } else if (localName.equals("element")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            ElementMetaData elemmd = new ElementMetaData();
            elemmd.setTable(getAttr(attrs, "table"));
            elemmd.setColumnName(getAttr(attrs, "column"));
            elemmd.setDeleteAction(getAttr(attrs, "delete-action"));
            elemmd.setUpdateAction(getAttr(attrs, "update-action"));
            elemmd.setIndexed(IndexedValue.getIndexedValue(getAttr(attrs, "indexed")));
            elemmd.setUnique(MetaDataUtils.getBooleanForString(getAttr(attrs, "unique"), false));
            String mappedBy = getAttr(attrs, "mapped-by");
            elemmd.setMappedBy(mappedBy);
            if (!StringUtils.isWhitespace(mappedBy) && fmd.getMappedBy() == null) {
                // With collection/array this is the same as mapped-by on the field
                fmd.setMappedBy(mappedBy);
            }
            String converterAttr = getAttr(attrs, "converter");
            String disableConverterAttr = getAttr(attrs, "use-default-conversion");
            if (disableConverterAttr != null && Boolean.getBoolean(disableConverterAttr)) {
            // TODO Disable on the element?
            } else if (!StringUtils.isWhitespace(converterAttr)) {
                TypeManager typeMgr = mmgr.getNucleusContext().getTypeManager();
                ClassLoaderResolver clr = mmgr.getNucleusContext().getClassLoaderResolver(null);
                Class converterCls = clr.classForName(converterAttr);
                if (typeMgr.getTypeConverterForName(converterCls.getName()) == null) {
                    // Not yet cached an instance of this converter so create one
                    AttributeConverter conv = JDOTypeConverterUtils.createAttributeConverter((PersistenceNucleusContext) mmgr.getNucleusContext(), converterCls);
                    // TODO element type
                    Class attrType = JDOTypeConverterUtils.getAttributeTypeForAttributeConverter(converterCls, null);
                    Class dbType = JDOTypeConverterUtils.getDatastoreTypeForAttributeConverter(converterCls, attrType, null);
                    // Register the TypeConverter under the name of the AttributeConverter class
                    JDOTypeConverter typeConv = new JDOTypeConverter(conv);
                    typeMgr.registerConverter(converterAttr, typeConv, attrType, dbType, false, null);
                }
                elemmd.addExtension(MetaData.EXTENSION_MEMBER_TYPE_CONVERTER_NAME, converterAttr);
            }
            fmd.setElementMetaData(elemmd);
            pushStack(elemmd);
        } else if (localName.equals("key")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            KeyMetaData keymd = new KeyMetaData();
            keymd.setTable(getAttr(attrs, "table"));
            keymd.setColumnName(getAttr(attrs, "column"));
            keymd.setDeleteAction(getAttr(attrs, "delete-action"));
            keymd.setUpdateAction(getAttr(attrs, "update-action"));
            keymd.setIndexed(IndexedValue.getIndexedValue(getAttr(attrs, "indexed")));
            keymd.setUnique(MetaDataUtils.getBooleanForString(getAttr(attrs, "unique"), false));
            keymd.setMappedBy(getAttr(attrs, "mapped-by"));
            String converterAttr = getAttr(attrs, "converter");
            String disableConverterAttr = getAttr(attrs, "use-default-conversion");
            if (disableConverterAttr != null && Boolean.getBoolean(disableConverterAttr)) {
            // TODO Disable on the key?
            } else if (!StringUtils.isWhitespace(converterAttr)) {
                TypeManager typeMgr = mmgr.getNucleusContext().getTypeManager();
                ClassLoaderResolver clr = mmgr.getNucleusContext().getClassLoaderResolver(null);
                Class converterCls = clr.classForName(converterAttr);
                if (typeMgr.getTypeConverterForName(converterCls.getName()) == null) {
                    // Not yet cached an instance of this converter so create one
                    AttributeConverter conv = JDOTypeConverterUtils.createAttributeConverter((PersistenceNucleusContext) mmgr.getNucleusContext(), converterCls);
                    // TODO key type
                    Class attrType = JDOTypeConverterUtils.getAttributeTypeForAttributeConverter(converterCls, null);
                    Class dbType = JDOTypeConverterUtils.getDatastoreTypeForAttributeConverter(converterCls, attrType, null);
                    // Register the TypeConverter under the name of the AttributeConverter class
                    JDOTypeConverter typeConv = new JDOTypeConverter(conv);
                    typeMgr.registerConverter(converterAttr, typeConv, attrType, dbType, false, null);
                }
                keymd.addExtension(MetaData.EXTENSION_MEMBER_TYPE_CONVERTER_NAME, converterAttr);
            }
            fmd.setKeyMetaData(keymd);
            pushStack(keymd);
        } else // New value
        if (localName.equals("value")) {
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            ValueMetaData valuemd = new ValueMetaData();
            valuemd.setTable(getAttr(attrs, "table"));
            valuemd.setColumnName(getAttr(attrs, "column"));
            valuemd.setDeleteAction(getAttr(attrs, "delete-action"));
            valuemd.setUpdateAction(getAttr(attrs, "update-action"));
            valuemd.setIndexed(IndexedValue.getIndexedValue(getAttr(attrs, "indexed")));
            valuemd.setUnique(MetaDataUtils.getBooleanForString(getAttr(attrs, "unique"), false));
            valuemd.setMappedBy(getAttr(attrs, "mapped-by"));
            String converterAttr = getAttr(attrs, "converter");
            String disableConverterAttr = getAttr(attrs, "use-default-conversion");
            if (disableConverterAttr != null && Boolean.getBoolean(disableConverterAttr)) {
            // TODO Disable on the value?
            } else if (!StringUtils.isWhitespace(converterAttr)) {
                TypeManager typeMgr = mmgr.getNucleusContext().getTypeManager();
                ClassLoaderResolver clr = mmgr.getNucleusContext().getClassLoaderResolver(null);
                Class converterCls = clr.classForName(converterAttr);
                if (typeMgr.getTypeConverterForName(converterCls.getName()) == null) {
                    // Not yet cached an instance of this converter so create one
                    AttributeConverter conv = JDOTypeConverterUtils.createAttributeConverter((PersistenceNucleusContext) mmgr.getNucleusContext(), converterCls);
                    // TODO value type
                    Class attrType = JDOTypeConverterUtils.getAttributeTypeForAttributeConverter(converterCls, null);
                    Class dbType = JDOTypeConverterUtils.getDatastoreTypeForAttributeConverter(converterCls, attrType, null);
                    // Register the TypeConverter under the name of the AttributeConverter class
                    JDOTypeConverter typeConv = new JDOTypeConverter(conv);
                    typeMgr.registerConverter(converterAttr, typeConv, attrType, dbType, false, null);
                }
                valuemd.addExtension(MetaData.EXTENSION_MEMBER_TYPE_CONVERTER_NAME, converterAttr);
            }
            fmd.setValueMetaData(valuemd);
            pushStack(valuemd);
        } else // New fetch-group
        if (localName.equals("fetch-group")) {
            MetaData md = getStack();
            FetchGroupMetaData fgmd = new FetchGroupMetaData(getAttr(attrs, "name"));
            String postLoadStr = getAttr(attrs, "post-load");
            if (!StringUtils.isWhitespace(postLoadStr)) {
                fgmd.setPostLoad(Boolean.valueOf(postLoadStr));
            }
            if (md instanceof FetchGroupMetaData) {
                FetchGroupMetaData fgmdParent = (FetchGroupMetaData) md;
                fgmdParent.addFetchGroup(fgmd);
            } else if (md instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) md;
                cmd.addFetchGroup(fgmd);
            } else if (md instanceof FetchPlanMetaData) {
                FetchPlanMetaData fpmd = (FetchPlanMetaData) md;
                fpmd.addFetchGroup(fgmd);
            }
            pushStack(fgmd);
        } else if (localName.equals("extension")) {
            MetaData md = getStack();
            String vendorName = getAttr(attrs, "vendor-name");
            if (StringUtils.isWhitespace(vendorName)) {
                throw new InvalidMetaDataException("044160", vendorName, getAttr(attrs, "key"), getAttr(attrs, "value"));
            }
            if (vendorName != null && vendorName.equalsIgnoreCase(MetaData.VENDOR_NAME)) {
                md.addExtension(getAttr(attrs, "key"), getAttr(attrs, "value"));
            }
        } else if (localName.equals("version")) {
            AbstractClassMetaData cmd = (AbstractClassMetaData) getStack();
            VersionMetaData vermd = cmd.newVersionMetadata();
            String strategy = getAttr(attrs, "strategy");
            if (!StringUtils.isWhitespace(strategy)) {
                vermd.setStrategy(strategy);
            }
            vermd.setColumnName(getAttr(attrs, "column"));
            vermd.setIndexed(IndexedValue.getIndexedValue(getAttr(attrs, "indexed")));
            pushStack(vermd);
        } else if (localName.equals("index")) {
            MetaData md = getStack();
            IndexMetaData idxmd = new IndexMetaData();
            idxmd.setName(getAttr(attrs, "name"));
            idxmd.setTable(getAttr(attrs, "table"));
            String uniStr = getAttr(attrs, "unique");
            if (!StringUtils.isWhitespace(uniStr)) {
                idxmd.setUnique(Boolean.valueOf(uniStr));
            }
            if (md instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) md;
                cmd.addIndex(idxmd);
            } else if (md instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) md;
                fmd.setIndexMetaData(idxmd);
            } else if (md instanceof JoinMetaData) {
                JoinMetaData jmd = (JoinMetaData) md;
                jmd.setIndexMetaData(idxmd);
            } else if (md instanceof AbstractElementMetaData) {
                AbstractElementMetaData elmd = (AbstractElementMetaData) md;
                elmd.setIndexMetaData(idxmd);
            } else if (md instanceof OrderMetaData) {
                OrderMetaData omd = (OrderMetaData) md;
                omd.setIndexMetaData(idxmd);
            } else if (md instanceof VersionMetaData) {
                VersionMetaData vermd = (VersionMetaData) md;
                vermd.setIndexMetaData(idxmd);
            } else if (md instanceof DiscriminatorMetaData) {
                DiscriminatorMetaData dismd = (DiscriminatorMetaData) md;
                dismd.setIndexMetaData(idxmd);
            }
            pushStack(idxmd);
        } else if (localName.equals("unique")) {
            MetaData md = getStack();
            UniqueMetaData unimd = new UniqueMetaData();
            unimd.setName(getAttr(attrs, "name"));
            unimd.setTable(getAttr(attrs, "table"));
            String defStr = getAttr(attrs, "deferred");
            if (!StringUtils.isWhitespace(defStr)) {
                unimd.setDeferred(Boolean.valueOf(defStr));
            }
            if (md instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) md;
                cmd.addUniqueConstraint(unimd);
            } else if (md instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) md;
                fmd.setUniqueMetaData(unimd);
            } else if (md instanceof JoinMetaData) {
                JoinMetaData jmd = (JoinMetaData) md;
                jmd.setUniqueMetaData(unimd);
            } else if (md instanceof AbstractElementMetaData) {
                AbstractElementMetaData elmd = (AbstractElementMetaData) md;
                elmd.setUniqueMetaData(unimd);
            }
            pushStack(unimd);
        } else if (localName.equals("foreign-key")) {
            MetaData md = getStack();
            ForeignKeyMetaData fkmd = new ForeignKeyMetaData();
            fkmd.setName(getAttr(attrs, "name"));
            fkmd.setTable(getAttr(attrs, "table"));
            fkmd.setUnique(getAttr(attrs, "unique"));
            fkmd.setDeferred(getAttr(attrs, "deferred"));
            fkmd.setDeleteAction(ForeignKeyAction.getForeignKeyAction(getAttr(attrs, "delete-action")));
            fkmd.setUpdateAction(ForeignKeyAction.getForeignKeyAction(getAttr(attrs, "update-action")));
            if (md instanceof AbstractClassMetaData) {
                AbstractClassMetaData cmd = (AbstractClassMetaData) md;
                cmd.addForeignKey(fkmd);
            } else if (md instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) md;
                fmd.setForeignKeyMetaData(fkmd);
            } else if (md instanceof JoinMetaData) {
                JoinMetaData jmd = (JoinMetaData) md;
                jmd.setForeignKeyMetaData(fkmd);
            } else if (md instanceof AbstractElementMetaData) {
                AbstractElementMetaData elmd = (AbstractElementMetaData) md;
                elmd.setForeignKeyMetaData(fkmd);
            }
            pushStack(fkmd);
        } else if (localName.equals("order")) {
            OrderMetaData ordmd = new OrderMetaData();
            ordmd.setIndexed(IndexedValue.getIndexedValue(getAttr(attrs, "indexed")));
            ordmd.setColumnName(getAttr(attrs, "column"));
            ordmd.setMappedBy(getAttr(attrs, "mapped-by"));
            AbstractMemberMetaData fmd = (AbstractMemberMetaData) getStack();
            fmd.setOrderMetaData(ordmd);
            pushStack(ordmd);
        } else if (localName.equals("embedded")) {
            MetaData md = getStack();
            EmbeddedMetaData embmd = new EmbeddedMetaData();
            embmd.setOwnerMember(getAttr(attrs, "owner-field"));
            embmd.setNullIndicatorColumn(getAttr(attrs, "null-indicator-column"));
            embmd.setNullIndicatorValue(getAttr(attrs, "null-indicator-value"));
            if (md instanceof AbstractMemberMetaData) {
                AbstractMemberMetaData fmd = (AbstractMemberMetaData) md;
                fmd.setEmbeddedMetaData(embmd);
            } else if (md instanceof KeyMetaData) {
                KeyMetaData kmd = (KeyMetaData) md;
                kmd.setEmbeddedMetaData(embmd);
            } else if (md instanceof ValueMetaData) {
                ValueMetaData vmd = (ValueMetaData) md;
                vmd.setEmbeddedMetaData(embmd);
            } else if (md instanceof ElementMetaData) {
                ElementMetaData elmd = (ElementMetaData) md;
                elmd.setEmbeddedMetaData(embmd);
            }
            pushStack(embmd);
        } else {
            String message = Localiser.msg("044037", qName);
            NucleusLogger.METADATA.error(message);
            throw new RuntimeException(message);
        }
    } catch (RuntimeException ex) {
        NucleusLogger.METADATA.error(Localiser.msg("044042", qName, getStack(), uri), ex);
        throw ex;
    }
}