Examples of JavaTypeMapping

org.datanucleus.store.mapped.mapping.JavaTypeMapping
Representation of the mapping of a Java type. The java type maps to one or more datastore mappings. This means that a field/property in a java class can be mapped to many columns in a table (in an RDBMS). A JavaTypeMapping can exist in 2 forms
- Constructed for a field/property managed by a datastore container, and so has metadata/container information
- Constructed to represent a parameter in a query, so has no metadata and container information.
org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping
org.jpox.store.mapped.mapping.JavaTypeMapping
Representation of the mapping of a Java type. The java type maps to one or more datastore mappings. This means that a field in a java class can be mapped to many columns in a table (in an RDBMS). A JavaTypeMapping can exist in 2 forms
- Constructed for the java type on its own to represent a literal in a JDOQL query, and consequently has no metadata/container information
- Constructed for a field managed by a datastore container, and so has metadata/container information
@version $Revision: 1.33 $

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


            Iterator<AbstractMemberMetaData> iter = externalFkMappings.keySet().iterator();
            while (iter.hasNext())
            {
                AbstractMemberMetaData fmd = iter.next();
                JavaTypeMapping fieldMapping = externalFkMappings.get(fmd);
                if (fieldMapping != null)
                {
                    consumer.consumeMapping(fieldMapping, MappingConsumer.MAPPING_TYPE_EXTERNAL_FK);
                }
            }
        }
        else if (mappingType == MappingConsumer.MAPPING_TYPE_EXTERNAL_FK_DISCRIM && externalFkDiscriminatorMappings != null)
        {
            consumer.preConsumeMapping(highestMemberNumber + 1);


            Iterator<AbstractMemberMetaData> iter = externalFkDiscriminatorMappings.keySet().iterator();
            while (iter.hasNext())
            {
                AbstractMemberMetaData fmd = iter.next();
                JavaTypeMapping fieldMapping = externalFkDiscriminatorMappings.get(fmd);
                if (fieldMapping != null)
                {
                    consumer.consumeMapping(fieldMapping, MappingConsumer.MAPPING_TYPE_EXTERNAL_FK_DISCRIM);
                }
            }
        }
        else if (mappingType == MappingConsumer.MAPPING_TYPE_EXTERNAL_INDEX && externalOrderMappings != null)
        {
            consumer.preConsumeMapping(highestMemberNumber + 1);


            Iterator<AbstractMemberMetaData> iter = externalOrderMappings.keySet().iterator();
            while (iter.hasNext())
            {
                AbstractMemberMetaData fmd = iter.next();
                JavaTypeMapping fieldMapping = externalOrderMappings.get(fmd);
                if (fieldMapping != null)
                {
                    consumer.consumeMapping(fieldMapping, MappingConsumer.MAPPING_TYPE_EXTERNAL_INDEX);
                }
            }

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

                {
                    // Add any FKs for the fields of the (embedded) value
                    EmbeddedValuePCMapping embMapping = (EmbeddedValuePCMapping)valueMapping;
                    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
                            Collection fks = TableUtils.getForeignKeysForReferenceField(embFieldMapping, embFmd, 
                                autoMode, storeMgr, clr);
                            foreignKeys.addAll(fks);
                        }
                        else if (storeMgr.getNucleusContext().getMetaDataManager().getMetaDataForClass(embFmd.getType(), clr) != null &&
                                embFieldMapping.getNumberOfDatastoreMappings() > 0 &&
                                embFieldMapping instanceof PersistableMapping)
                        {
                            // Field is for a PC class with the FK at this side, so add a FK to the table of this PC
                            ForeignKey fk = TableUtils.getForeignKeyForPCField(embFieldMapping, embFmd, 
                                autoMode, storeMgr, clr);
                            if (fk != null)
                            {
                                foreignKeys.add(fk);
                            }
                        }
                    }
                }
                else if (mmd.getMap().valueIsPersistent())
                {
                    // FK from join table to value table
                    referencedTable = storeMgr.getDatastoreClass(mmd.getMap().getValueType(), clr);
                    if (referencedTable != null)
                    {
                        // Take <foreign-key> from <value>
                        ForeignKeyMetaData fkmd = null;
                        if (mmd.getValueMetaData() != null)
                        {
                            fkmd = mmd.getValueMetaData().getForeignKeyMetaData();
                        }
                        if (fkmd != null || autoMode)
                        {
                            ForeignKey fk = new ForeignKey(valueMapping, dba, referencedTable, true);
                            fk.setForMetaData(fkmd);
                            foreignKeys.add(fk);
                        }
                    }
                }
            }


            if (!isSerialisedKeyPC())
            {
                if (isEmbeddedKeyPC())
                {
                    // Add any FKs for the fields of the (embedded) key
                    EmbeddedKeyPCMapping embMapping = (EmbeddedKeyPCMapping)keyMapping;
                    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
                            Collection fks = TableUtils.getForeignKeysForReferenceField(embFieldMapping, embFmd, 
                                autoMode, storeMgr, clr);
                            foreignKeys.addAll(fks);
                        }
                        else if (storeMgr.getNucleusContext().getMetaDataManager().getMetaDataForClass(embFmd.getType(), clr) != null &&
                                embFieldMapping.getNumberOfDatastoreMappings() > 0 &&
                                embFieldMapping instanceof PersistableMapping)
                        {
                            // Field is for a PC class with the FK at this side, so add a FK to the table of this PC
                            ForeignKey fk = TableUtils.getForeignKeyForPCField(embFieldMapping, embFmd, 
                                autoMode, storeMgr, clr);

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

        {
            // Add all indices required by fields of the embedded key
            EmbeddedKeyPCMapping embMapping = (EmbeddedKeyPCMapping)keyMapping;
            for (int i=0;i<embMapping.getNumberOfJavaTypeMappings();i++)
            {
                JavaTypeMapping embFieldMapping = embMapping.getJavaTypeMapping(i);
                IndexMetaData imd = embFieldMapping.getMemberMetaData().getIndexMetaData();
                if (imd != null)
                {
                    Index index = TableUtils.getIndexForField(this, imd, embFieldMapping);
                    if (index != null)
                    {
                        indices.add(index);
                    }
                }
            }
        }


        if (valueMapping instanceof EmbeddedValuePCMapping)
        {
            // Add all indices required by fields of the embedded value
            EmbeddedValuePCMapping embMapping = (EmbeddedValuePCMapping)valueMapping;
            for (int i=0;i<embMapping.getNumberOfJavaTypeMappings();i++)
            {
                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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Examples of org.datanucleus.store.mapped.mapping.JavaTypeMapping

        {
            // Add all candidate keys required by fields of the embedded key
            EmbeddedKeyPCMapping embMapping = (EmbeddedKeyPCMapping)keyMapping;
            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)
                    {
                        candidateKeys.add(ck);
                    }
                }
            }
        }


        if (valueMapping instanceof EmbeddedValuePCMapping)
        {
            // Add all candidate keys required by fields of the embedded value
            EmbeddedValuePCMapping embMapping = (EmbeddedValuePCMapping)valueMapping;
            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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Examples of org.datanucleus.store.mapped.mapping.JavaTypeMapping

        JavaTypeMapping[] refJavaTypeMappings = refMapping.getJavaTypeMapping();
        List fks = new ArrayList();
        for (int i=0;i<refJavaTypeMappings.length;i++)
        {
            // If the implementation is of a PC class, look to add a FK to the PC class table
            final JavaTypeMapping implMapping = refJavaTypeMappings[i];
            if (storeMgr.getNucleusContext().getMetaDataManager().getMetaDataForClass(implMapping.getType(), clr) != null &&
                implMapping.getNumberOfDatastoreMappings() > 0)
            {
                DatastoreClass referencedTable = storeMgr.getDatastoreClass(implMapping.getType(), clr);
                if (referencedTable != null)
                {
                    ForeignKeyMetaData fkmd = mmd.getForeignKeyMetaData();
                    if ((fkmd != null && fkmd.getDeleteAction() != ForeignKeyAction.NONE) || autoMode)
                    {

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

                boolean[] orderDirs = new boolean[orderComponents.length];


                for (int i=0;i<orderComponents.length;i++)
                {
                    String fieldName = orderComponents[i].getFieldName();
                    JavaTypeMapping fieldMapping = elementTbl.getMemberMapping(elementInfo[0].getAbstractClassMetaData().getMetaDataForMember(fieldName));
                    orderDirs[i] = !orderComponents[i].isForward();
                    SQLTable fieldSqlTbl = SQLStatementHelper.getSQLTableForMappingOfTable(sqlStmt, sqlStmt.getPrimaryTable(), fieldMapping);
                    orderExprs[i] = exprFactory.newExpression(sqlStmt, fieldSqlTbl, fieldMapping);
                }

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

     **/
    public void initialize(ClassLoaderResolver clr)
    {
        assertIsUninitialized();


    JavaTypeMapping mapping = storeMgr.getMappingManager().getMapping(int.class);
    DatastoreField column = addDatastoreField(int.class.getName(), 
            storeMgr.getIdentifierFactory().newDatastoreFieldIdentifier("UNUSED"), mapping, null);
    getStoreManager().getMappingManager().createDatastoreMapping(mapping, column, int.class.getName());


        state = TABLE_STATE_INITIALIZED;

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

    public static int populateElementDiscriminatorInStatement(ExecutionContext ec, PreparedStatement ps,
            int jdbcPosition, boolean includeSubclasses, ElementContainerStore.ElementInfo info,
            ClassLoaderResolver clr)
    {
        DiscriminatorStrategy strategy = info.getDiscriminatorStrategy();
        JavaTypeMapping discrimMapping = info.getDiscriminatorMapping();


        // Include element type
        if (strategy == DiscriminatorStrategy.CLASS_NAME)
        {
            discrimMapping.setObject(ec, ps, 
                MappingHelper.getMappingIndices(jdbcPosition, discrimMapping), info.getClassName());
            jdbcPosition += discrimMapping.getNumberOfDatastoreMappings();
        }
        else
        {
            if (strategy == DiscriminatorStrategy.VALUE_MAP)
            {
                discrimMapping.setObject(ec, ps, 
                    MappingHelper.getMappingIndices(jdbcPosition, discrimMapping),
                    info.getAbstractClassMetaData().getInheritanceMetaData().getDiscriminatorMetaData().getValue());
                jdbcPosition += discrimMapping.getNumberOfDatastoreMappings();
            }
        }


        // Include all subclasses
        if (includeSubclasses)
        {
            MappedStoreManager storeMgr = (MappedStoreManager)ec.getStoreManager();
            HashSet<String> subclasses = storeMgr.getSubClassesForClass(info.getClassName(), true, clr);
            if (subclasses != null && subclasses.size() > 0)
            {
                Iterator<String> iter = subclasses.iterator();
                while (iter.hasNext())
                {
                    String subclass = iter.next();
                    if (strategy == DiscriminatorStrategy.CLASS_NAME)
                    {
                        discrimMapping.setObject(ec, ps, MappingHelper.getMappingIndices(jdbcPosition,
                            discrimMapping), subclass);
                        jdbcPosition += discrimMapping.getNumberOfDatastoreMappings();
                    }
                    else
                    {
                        if (strategy == DiscriminatorStrategy.VALUE_MAP)
                        {
                            AbstractClassMetaData subclassCmd = storeMgr.getNucleusContext().getMetaDataManager()
                                .getMetaDataForClass(subclass, clr);
                            discrimMapping.setObject(ec, ps, MappingHelper.getMappingIndices(jdbcPosition,
                                discrimMapping),
                                subclassCmd.getInheritanceMetaData().getDiscriminatorMetaData().getValue());
                            jdbcPosition += discrimMapping.getNumberOfDatastoreMappings();
                        }
                    }
                }
            }
        }

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

        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++)
            {
                jdbcParamPositions[j] = jdbcPosition++;
            }
            stmtMapping.addParameterOccurrence(jdbcParamPositions);
            mappingDefinition.addMappingForMember(absFieldNum, stmtMapping);

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

        EmbeddedKeyPCMapping embeddedMapping = (EmbeddedKeyPCMapping)mapStore.getKeyMapping();
        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 = kmd.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++)
            {
                jdbcParamPositions[j] = jdbcPosition++;
            }
            stmtMapping.addParameterOccurrence(jdbcParamPositions);
            mappingDefinition.addMappingForMember(absFieldNum, stmtMapping);

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