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

Package org.datanucleus.store.mapped.mapping

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

org.datanucleus.store.mapped.mapping.CorrespondentColumnsMapper
Class to make correspondence between columns in one side of an association to the mapping at the other side. The 2 sides of the association are referred to as "sideA" and "sideB". The JDO 2 metadata allows definition of the correspondence using the syntax.
This means that the column specified on sideA will be mapped to the specified "target" column on sideB. If no target is provided then the first available sideB column is used for the mapping. Where no columns are defined on sideA, then they will be created to match those on sideB. Checks are made for consistency of the sideA data. When there is insufficient ColumnMetaData on sideA then a new ColumnMetaData is added to the column container.

                                else if (ownerFmd.hasMap() && ownerFmd.getValueMetaData() != null && ownerFmd.getValueMetaData().getMappedBy() != null)
                                {
                                    // 1-N Map with value stored in the key
                                    colmdContainer = ownerFmd.getKeyMetaData();
                                }
                                CorrespondentColumnsMapper correspondentColumnsMapping = 
                                    new CorrespondentColumnsMapper(colmdContainer, ownerIdMapping, true);
                                int countIdFields = ownerIdMapping.getNumberOfDatastoreMappings();
                                for (int i=0; i<countIdFields; i++)
                                {
                                    DatastoreMapping refDatastoreMapping = ownerIdMapping.getDatastoreMapping(i);
                                    JavaTypeMapping mapping = storeMgr.getMappingManager().getMapping(refDatastoreMapping.getJavaTypeMapping().getJavaType());
                                    ColumnMetaData colmd = correspondentColumnsMapping.getColumnMetaDataByIdentifier(((Column)refDatastoreMapping.getDatastoreField()).getIdentifier());
                                    if (colmd == null)
                                    {
                                        throw new NucleusUserException(LOCALISER.msg("057035",
                                            ((Column)refDatastoreMapping.getDatastoreField()).getIdentifier(), toString())).setFatal();
                                    }

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          } else if (ownerFmd.hasMap() && ownerFmd.getValueMetaData() != null
                     && ownerFmd.getValueMetaData().getMappedBy() != null) {
            // 1-N Map with value stored in the key
            colmdContainer = ownerFmd.getKeyMetaData();
          }
          CorrespondentColumnsMapper correspondentColumnsMapping =
              new CorrespondentColumnsMapper(colmdContainer, ownerIdMapping, true);
          int countIdFields = ownerIdMapping.getNumberOfDatastoreMappings();
          for (int i = 0; i < countIdFields; i++) {
            DatastoreMapping refDatastoreMapping = ownerIdMapping.getDatastoreMapping(i);
            JavaTypeMapping mapping = storeMgr.getMappingManager()
                    .getMapping(refDatastoreMapping.getJavaTypeMapping().getJavaType());
            ColumnMetaData colmd = correspondentColumnsMapping.getColumnMetaDataByIdentifier(
                    refDatastoreMapping.getDatastoreField().getIdentifier());
            if (colmd == null) {
              throw new NucleusFatalUserException(
                  String.format("Primary Key column \"%s\" for table \"%s\" is not mapped.",
                  refDatastoreMapping.getDatastoreField().getIdentifier(),

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          } else if (ownerFmd.hasMap() && ownerFmd.getValueMetaData() != null
                     && ownerFmd.getValueMetaData().getMappedBy() != null) {
            // 1-N Map with value stored in the key
            colmdContainer = ownerFmd.getKeyMetaData();
          }
          CorrespondentColumnsMapper correspondentColumnsMapping =
              new CorrespondentColumnsMapper(colmdContainer, ownerIdMapping, true);
          int countIdFields = ownerIdMapping.getNumberOfDatastoreFields();
          for (int i = 0; i < countIdFields; i++) {
            DatastoreMapping refDatastoreMapping = ownerIdMapping.getDataStoreMapping(i);
            JavaTypeMapping mapping = storeMgr.getMappingManager()
                    .getMapping(refDatastoreMapping.getJavaTypeMapping().getJavaType());
            ColumnMetaData colmd = correspondentColumnsMapping.getColumnMetaDataByIdentifier(
                    refDatastoreMapping.getDatastoreField().getIdentifier());
            if (colmd == null) {
              throw new FatalNucleusUserException(
                  String.format("Primary Key column \"%s\" for table \"%s\" is not mapped.",
                  refDatastoreMapping.getDatastoreField().getIdentifier(),

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                ColumnMetaDataContainer columnContainer = null;
                if (columnMetaData != null && columnMetaData.length > 0)
                {
                    columnContainer = (ColumnMetaDataContainer)columnMetaData[0].getParent();
                }
                CorrespondentColumnsMapper correspondentColumnsMapping =
                    new CorrespondentColumnsMapper(columnContainer, columnMetaData, m, true);
                for (int i=0; i<m.getNumberOfDatastoreFields(); i++)
                {
                    JavaTypeMapping refDatastoreMapping =
                        storeMgr.getMappingManager().getMapping(m.getDataStoreMapping(i).getJavaTypeMapping().getJavaType());
                    ColumnMetaData colmd = correspondentColumnsMapping.getColumnMetaDataByIdentifier(
                        m.getDataStoreMapping(i).getDatastoreField().getIdentifier());
                    try
                    {
                        DatastoreIdentifier identifier = null;
                        if (colmd.getName() == null)

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

com.google.appengine.datanucleus.mapping.DatastoreTable

org.datanucleus.metadata.ColumnMetaData

org.datanucleus.store.appengine.DatastoreTable

org.datanucleus.store.mapped.ColumnCreator

org.datanucleus.store.mapped.DatastoreIdentifier

org.datanucleus.store.rdbms.table.ClassTable

org.datanucleus.exceptions.NucleusUserException

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