private StoreData buildStoreDataWithTable(ClassMetaData cmd, DatastoreTable table) {
MappedStoreData sd = new MappedStoreData(cmd, table, false);
registerStoreData(sd);
sd.setDatastoreContainerObject(table);
table.manageClass(cmd);
return sd;
}
/**
* This method requires synchronization so that we don't end up registering the same property more
* than once.
*/
@Override
protected synchronized StoreData newStoreData(ClassMetaData cmd, ClassLoaderResolver clr) {
InheritanceStrategy strat = cmd.getInheritanceMetaData().getStrategy();
// The overarching rule for supported inheritance strategies is that we
// don't split the state of an object across multiple entities.
// TODO This is all nonsense. This datastore only allows "COMPLETE_TABLE" really so ignore the
// inheritance
// and remove the need for DatastoreClass
if (strat == InheritanceStrategy.SUBCLASS_TABLE) {
// Table mapped into the table(s) of subclass(es)
// Just add the SchemaData entry with no table - managed by subclass
return buildStoreDataWithNoTable(cmd);
} else if (strat == InheritanceStrategy.COMPLETE_TABLE) {
if (cmd.isAbstract()) {
// Abstract class with "complete-table" so gets no table
return buildStoreDataWithNoTable(cmd);
}
return buildStoreData(cmd, clr);
} else if (strat == InheritanceStrategy.NEW_TABLE
&& (cmd.getSuperAbstractClassMetaData() == null
|| cmd.getSuperAbstractClassMetaData().getInheritanceMetaData().getStrategy()
== InheritanceStrategy.SUBCLASS_TABLE)) {
// New Table means you store your fields and your fields only (no fields from superclasses).
// This only ok if you don't have a persistent superclass or your persistent superclass has
// delegated responsibility for storing its fields to you.
return buildStoreData(cmd, clr);
} else if (MetaDataUtils.isNewOrSuperclassTableInheritanceStrategy(cmd)) {
// Table mapped into table of superclass
// Find the superclass - should have been created first
AbstractClassMetaData[] managingCmds = getClassesManagingTableForClass(cmd, clr);
DatastoreTable superTable;
if (managingCmds != null && managingCmds.length == 1) {
MappedStoreData superData =
(MappedStoreData) storeDataMgr.get(managingCmds[0].getFullClassName());
if (superData != null) {
// Specify the table if it already exists
superTable = (DatastoreTable) superData.getDatastoreContainerObject();
return buildStoreDataWithTable(cmd, superTable);
}
}
}
// TODO Don't do this. GAE basically supports "complete-table" always so we should just ignore
// any
// inheritance metadata that implies otherwise.
boolean jpa = getApiAdapter().getName().equalsIgnoreCase("JPA");
String unsupportedMsg =
GAE_LOCALISER.msg(
jpa ? "AppEngine.BadInheritance.JPA" : "AppEngine.BadInheritance.JDO",
cmd.getInheritanceMetaData().getStrategy().toString(),
cmd.getFullClassName(),
getApiAdapter().getName());
throw new UnsupportedInheritanceStrategyException(unsupportedMsg);
}
