Package org.datanucleus.store.mapped.mapping

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


  private void initializeIDMapping() {
    if (idMapping != null) {
      return;
    }

    final PersistenceCapableMapping mapping = new PersistenceCapableMapping();
    mapping.initialize(getStoreManager().getDatastoreAdapter(), cmd.getFullClassName());
    if (getIdentityType() == IdentityType.DATASTORE) {
      mapping.addJavaTypeMapping(datastoreIDMapping);
    } else if (getIdentityType() == IdentityType.APPLICATION) {
      for (JavaTypeMapping pkMapping : pkMappings) {
        mapping.addJavaTypeMapping(pkMapping);
      }
    } else {
      // Nothing to do for nondurable since no identity
    }
View Full Code Here


          // Add the order mapping as necessary
          addOrderMapping(ownerFmd, null);
        } else {
          // Unidirectional (element knows nothing about the owner)
          String ownerClassName = callback.ownerClassName;
          JavaTypeMapping fkMapping = new PersistenceCapableMapping();
          fkMapping.initialize(dba, ownerClassName);
          JavaTypeMapping orderMapping = null;

          // Get the owner id mapping of the "1" end
          JavaTypeMapping ownerIdMapping =
              storeMgr.getDatastoreClass(ownerClassName, clr).getIDMapping();
          ColumnMetaDataContainer colmdContainer = null;
          if (ownerFmd.hasCollection() || ownerFmd.hasArray()) {
            // 1-N Collection/array
            colmdContainer = ownerFmd.getElementMetaData();
          } else if (ownerFmd.hasMap() && ownerFmd.getKeyMetaData() != null
                     && ownerFmd.getKeyMetaData().getMappedBy() != null) {
            // 1-N Map with key stored in the value
            colmdContainer = ownerFmd.getValueMetaData();
          } 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(),
                  toString()));
            }

            DatastoreIdentifier identifier;
            IdentifierFactory idFactory = storeMgr.getIdentifierFactory();
            if (colmd.getName() == null || colmd.getName().length() < 1) {
              // No user provided name so generate one
              identifier = idFactory.newForeignKeyFieldIdentifier(
                  ownerFmd, null, refDatastoreMapping.getDatastoreField().getIdentifier(),
                  storeMgr.getOMFContext().getTypeManager().isDefaultEmbeddedType(mapping.getJavaType()),
                  FieldRole.ROLE_OWNER);
            } else {
              // User-defined name
              identifier = idFactory.newDatastoreFieldIdentifier(colmd.getName());
            }
            // When we have an inherited relationship we end up
            // trying to add an owner property twice - once from the super-class
            // and once from the sub-class.  This generates an exception for
            // duplicate property names.  To avoid this we check to see if
            // the table already has a property with this name before attempting
            // to add the mapping
            if (!datastorePropertiesByName.containsKey(identifier.getIdentifierName())) {
              DatastoreProperty refColumn =
                  addDatastoreField(mapping.getJavaType().getName(), identifier, mapping, colmd);
              refDatastoreMapping.getDatastoreField().copyConfigurationTo(refColumn);

              if ((colmd.getAllowsNull() == null) ||
                  (colmd.getAllowsNull() != null && colmd.isAllowsNull())) {
                // User either wants it nullable, or havent specified anything, so make it nullable
                refColumn.setNullable();
              }
              AbstractClassMetaData acmd =
                  storeMgr.getMetaDataManager().getMetaDataForClass(ownerIdMapping.getType(), clr);
              // this is needed for one-to-many sets
              addOwningClassMetaData(colmd.getName(), acmd);
              fkMapping.addDataStoreMapping(getStoreManager().getMappingManager()
                  .createDatastoreMapping(mapping, refColumn,
                                          refDatastoreMapping.getJavaTypeMapping().getJavaType().getName()));
              ((PersistenceCapableMapping) fkMapping).addJavaTypeMapping(mapping);
            }
          }
View Full Code Here

TOP

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

Copyright © 2018 www.massapicom. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.