Examples of org.datanucleus.store.mapped.mapping.EmbeddedElementPCMapping

Package org.datanucleus.store.mapped.mapping

Examples of org.datanucleus.store.mapped.mapping.EmbeddedElementPCMapping

org.datanucleus.store.mapped.mapping.EmbeddedElementPCMapping
Mapping for a PersistenceCapable object stored in an embedded collection within a PersistenceCapable object. Provides mapping for a single Java type (the element PC type) to multiple datastore columns.

     */
    public static int populateEmbeddedElementFieldsInStatement(ObjectProvider sm, Object element, Object ps,
            int jdbcPosition, AbstractMemberMetaData ownerFieldMetaData, JavaTypeMapping elementMapping,
            AbstractClassMetaData emd, BaseContainerStore bcs)
    {
        EmbeddedElementPCMapping embeddedMapping = (EmbeddedElementPCMapping) elementMapping;
        StatementClassMapping mappingDefinition = new StatementClassMapping();
        int[] elementFieldNumbers = new int[embeddedMapping.getNumberOfJavaTypeMappings()];
        for (int i = 0; i < embeddedMapping.getNumberOfJavaTypeMappings(); i++)
        {
            JavaTypeMapping fieldMapping = embeddedMapping.getJavaTypeMapping(i);
            int absFieldNum = emd.getAbsolutePositionOfMember(fieldMapping.getMemberMetaData().getName());
            elementFieldNumbers[i] = absFieldNum;
            StatementMappingIndex stmtMapping = new StatementMappingIndex(fieldMapping);
            int[] jdbcParamPositions = new int[fieldMapping.getNumberOfDatastoreMappings()];
            for (int j = 0; j < fieldMapping.getNumberOfDatastoreMappings(); j++)

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            stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
            stmt.append(" = ");
            stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
        }


        EmbeddedElementPCMapping embeddedMapping = (EmbeddedElementPCMapping) elementMapping;
        for (int i = 0; i < embeddedMapping.getNumberOfJavaTypeMappings(); i++)
        {
            JavaTypeMapping m = embeddedMapping.getJavaTypeMapping(i);
            if (m != null)
            {
                for (int j = 0; j < m.getNumberOfDatastoreMappings(); j++)
                {
                    stmt.append(" AND ");

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                // Do nothing since no element table
            }
            else if (elementMapping instanceof EmbeddedElementPCMapping)
            {
                // Add any FKs for the fields of the (embedded) element
                EmbeddedElementPCMapping embMapping = (EmbeddedElementPCMapping)elementMapping;
                for (int i=0;i<embMapping.getNumberOfJavaTypeMappings();i++)
                {
                    JavaTypeMapping embFieldMapping = embMapping.getJavaTypeMapping(i);
                    AbstractMemberMetaData embFmd = embFieldMapping.getMemberMetaData();
                    if (ClassUtils.isReferenceType(embFmd.getType()) && 
                        embFieldMapping instanceof ReferenceMapping)
                    {
                        // Field is a reference type, so add a FK to the table of the PC for each PC implementation

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        // Check element for specified indices
        if (elementMapping instanceof EmbeddedElementPCMapping)
        {
            // Add all indices required by fields of the embedded element
            EmbeddedElementPCMapping embMapping = (EmbeddedElementPCMapping)elementMapping;
            for (int i=0;i<embMapping.getNumberOfJavaTypeMappings();i++)
            {
                // Add indexes for fields of this embedded PC object
                JavaTypeMapping embFieldMapping = embMapping.getJavaTypeMapping(i);
                IndexMetaData imd = embFieldMapping.getMemberMetaData().getIndexMetaData();
                if (imd != null)
                {
                    Index index = TableUtils.getIndexForField(this, imd, embFieldMapping);
                    if (index != null)

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        List candidateKeys = super.getExpectedCandidateKeys();


        if (elementMapping instanceof EmbeddedElementPCMapping)
        {
            // Add all candidate keys required by fields of the embedded element
            EmbeddedElementPCMapping embMapping = (EmbeddedElementPCMapping)elementMapping;
            for (int i=0;i<embMapping.getNumberOfJavaTypeMappings();i++)
            {
                JavaTypeMapping embFieldMapping = embMapping.getJavaTypeMapping(i);
                UniqueMetaData umd = embFieldMapping.getMemberMetaData().getUniqueMetaData();
                if (umd != null)
                {
                    CandidateKey ck = TableUtils.getCandidateKeyForField(this, umd, embFieldMapping);
                    if (ck != null)

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Related Classes of org.datanucleus.store.mapped.mapping.EmbeddedElementPCMapping

org.datanucleus.store.rdbms.scostore.BackingStoreHelper

org.datanucleus.store.rdbms.scostore.RDBMSAbstractCollectionStoreSpecialization

org.datanucleus.store.rdbms.table.ElementContainerTable

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