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

Package org.datanucleus.store.mapped.mapping

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

            {
                subExpr = new org.datanucleus.store.rdbms.sql.expression.SubqueryExpression(stmt, subStmt);
            }
            else
            {
                JavaTypeMapping subMapping = 
                    ((StatementMappingIndex)subqueryResultMapping.getMappingForResultExpression(0)).getMapping();
                if (subMapping instanceof TemporalMapping)
                {
                    subExpr = new TemporalSubqueryExpression(stmt, subStmt);
                }

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            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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                if (ownerMmd != null)
                {
                    ownerFieldNum = ownerMmd.getAbsoluteFieldNumber();
                }


                JavaTypeMapping keyMapping = setStore.getKeyMapping();
                if (keyMapping instanceof EmbeddedKeyPCMapping ||
                    keyMapping instanceof SerialisedPCMapping ||
                    keyMapping instanceof SerialisedReferenceMapping)
                {
                    key = keyMapping.getObject(ec, rs, keyResultCols, sm, ownerFieldNum);
                }
                else
                {
                    key = keyMapping.getObject(ec, rs, keyResultCols);
                }


                JavaTypeMapping valueMapping = setStore.getValueMapping();
                if (valueMapping instanceof EmbeddedValuePCMapping ||
                    valueMapping instanceof SerialisedPCMapping ||
                    valueMapping instanceof SerialisedReferenceMapping)
                {
                    value = valueMapping.getObject(ec, rs, valueResultCols, sm, ownerFieldNum);
                }
                else
                {
                    value = valueMapping.getObject(ec, rs, valueResultCols);
                }


                results.add(new EntryImpl(sm, key, value, setStore.getMapStore()));
            }

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     */
    protected String getSetStmt(ElementContainerStore ecs)
    {
        if (setStmt == null)
        {
            JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
            JavaTypeMapping orderMapping = ecs.getOrderMapping();
            DatastoreContainerObject containerTable = ecs.getContainerTable();
            JavaTypeMapping elementMapping = ecs.getElementMapping();
            JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


            StringBuffer stmt = new StringBuffer();
            stmt.append("UPDATE ");
            stmt.append(containerTable.toString()); // TODO Allow for multiple element tables
            stmt.append(" SET ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(",");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = ");
                stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
            }


            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) orderMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) relationDiscriminatorMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }


            stmt.append(" WHERE ");

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     */
    protected String getUnsetStmt(ElementContainerStore ecs)
    {
        if (unsetStmt == null)
        {
            JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
            JavaTypeMapping orderMapping = ecs.getOrderMapping();
            DatastoreContainerObject containerTable = ecs.getContainerTable();
            JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


            StringBuffer stmt = new StringBuffer();
            stmt.append("UPDATE ");
            // TODO Allow for multiple element tables
            stmt.append(containerTable.toString());
            stmt.append(" SET ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(",");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = NULL");
            }


            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append("=-1");
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = NULL");
                }
            }


            stmt.append(" WHERE ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(" AND ");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = ");
                stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
            }
            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(" AND ");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) orderMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(" AND ");
                    stmt.append(relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) relationDiscriminatorMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            unsetStmt = stmt.toString();
        }
        return unsetStmt;

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            ElementContainerStore ecs, Object obj)
    {
        String setStmt = getSetStmt(ecs);
        String unsetStmt = getUnsetStmt(ecs);


        JavaTypeMapping orderMapping = ecs.getOrderMapping();
        JavaTypeMapping elementMapping = ecs.getElementMapping();
        JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


        try
        {
            ExecutionContext ec = sm.getExecutionContext();
            ManagedConnection mconn = ecs.getStoreManager().getConnection(ec);

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     */
    private String getUpdateFkStmt(ElementContainerStore ecs)
    {
        if (updateFkStmt == null)
        {
            JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
            JavaTypeMapping orderMapping = ecs.getOrderMapping();
            DatastoreContainerObject containerTable = ecs.getContainerTable();
            JavaTypeMapping elementMapping = ecs.getElementMapping();
            ElementContainerStore.ElementInfo[] elementInfo = ecs.getElementInfo();
            JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


            StringBuffer stmt = new StringBuffer();
            stmt.append("UPDATE ");
            if (elementInfo.length > 1)
            {
                stmt.append("?");
            }
            else
            {
                // Could use elementInfo[0].getDatastoreClass but need to allow for relation in superclass table
                stmt.append(containerTable.toString());
            }
            stmt.append(" SET ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(",");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = ");
                stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
            }
            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) orderMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(",");
                    stmt.append(relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) relationDiscriminatorMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }


            stmt.append(" WHERE ");

View Full Code Here

    }


    public boolean updateElementFk(ObjectProvider sm, Object element, Object owner, int index, ExecutionContext ec, 
            ElementContainerStore ecs)
    {
        JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
        JavaTypeMapping orderMapping = ecs.getOrderMapping();
        JavaTypeMapping elementMapping = ecs.getElementMapping();
        ElementContainerStore.ElementInfo[] elementInfo = ecs.getElementInfo();
        JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();
        AbstractMemberMetaData ownerMemberMetaData = ecs.getOwnerMemberMetaData();


        String updateFkStmt = getUpdateFkStmt(ecs);
        boolean retval;
        try

View Full Code Here

     */
    protected String getRemoveAtNullifyStmt(ElementContainerStore ecs)
    {
        if (removeAtNullifyStmt == null)
        {
            JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
            JavaTypeMapping orderMapping = ecs.getOrderMapping();
            DatastoreContainerObject containerTable = ecs.getContainerTable();
            ElementContainerStore.ElementInfo[] elementInfo = ecs.getElementInfo();
            JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


            StringBuffer stmt = new StringBuffer();
            stmt.append("UPDATE ");
            if (elementInfo.length > 1)
            {
                stmt.append("?");
            }
            else
            {
                // Could use elementInfo[0].getDatastoreClass but need to allow for relation in superclass table
                stmt.append(containerTable.toString());
            }
            stmt.append(" SET ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(", ");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString() + "=NULL");
            }
            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(", ");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString() + "=-1");
                }
            }


            stmt.append(" WHERE ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(" AND ");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = ");
                stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
            }
            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(" AND ");
                    stmt.append(
                        orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) orderMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(" AND ");
                    stmt.append(
                        relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) relationDiscriminatorMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            removeAtNullifyStmt = stmt.toString();
        }
        return removeAtNullifyStmt;

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     */
    protected String getClearNullifyStmt(ElementContainerStore ecs)
    {
        if (clearNullifyStmt == null)
        {
            JavaTypeMapping ownerMapping = ecs.getOwnerMapping();
            JavaTypeMapping orderMapping = ecs.getOrderMapping();
            DatastoreContainerObject containerTable = ecs.getContainerTable();
            ElementContainerStore.ElementInfo[] elementInfo = ecs.getElementInfo();
            JavaTypeMapping relationDiscriminatorMapping = ecs.getRelationDiscriminatorMapping();


            StringBuffer stmt = new StringBuffer();
            stmt.append("UPDATE ");
            if (elementInfo.length > 1)
            {
                stmt.append("?");
            }
            else
            {
                // Could use elementInfo[0].getDatastoreClass but need to allow for relation in superclass table
                stmt.append(containerTable.toString());
            }
            stmt.append(" SET ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(", ");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString() + "=NULL");
            }
            if (orderMapping != null)
            {
                for (int i = 0; i < orderMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(", ");
                    stmt.append(orderMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString() + "=-1");
                }
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(", ");
                    stmt.append(
                        relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append("=NULL");
                }
            }


            stmt.append(" WHERE ");
            for (int i = 0; i < ownerMapping.getNumberOfDatastoreMappings(); i++)
            {
                if (i > 0)
                {
                    stmt.append(" AND ");
                }
                stmt.append(ownerMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                stmt.append(" = ");
                stmt.append(((RDBMSMapping) ownerMapping.getDatastoreMapping(i)).getUpdateInputParameter());
            }
            if (relationDiscriminatorMapping != null)
            {
                for (int i = 0; i < relationDiscriminatorMapping.getNumberOfDatastoreMappings(); i++)
                {
                    stmt.append(" AND ");
                    stmt.append(
                        relationDiscriminatorMapping.getDatastoreMapping(i).getDatastoreField().getIdentifier().toString());
                    stmt.append(" = ");
                    stmt.append(((RDBMSMapping) relationDiscriminatorMapping.getDatastoreMapping(i)).getUpdateInputParameter());
                }
            }
            clearNullifyStmt = stmt.toString();
        }
        return clearNullifyStmt;

View Full Code Here

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org.datanucleus.store.appengine.DatastoreTable

org.datanucleus.store.appengine.DependentDeleteRequest

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