The type of inheritance model supported by torque is one table per class hierarchy. torque objects cannot extend each other. Patches are welcome.
john mcnally "Janssen, Roger" wrote: > > Hi, > > i'm trying to generate the OM classes with torque for a simple object model, > consisting of two classes NUMBERED_OBJECT and MY_ASSET, where MY_ASSET is a > subclass of NUMBERED_OBJECT. > > The XML scheme i used is below: > _______________________start________________________________ > <?xml version="1.0" encoding="ISO-8859-1" standalone="no" ?> > <!DOCTYPE database SYSTEM " > http://jakarta.apache.org/turbine/dtd/database.dtd"; > <http://jakarta.apache.org/turbine/dtd/database.dtd> > > > <database > name="database2" > defaultIdMethod="idbroker" > package="demo.om"> > > <table > name="NUMBERED_OBJECT" > javaName="NumberedObject" > idMethod="idbroker" > skipSql="false"> > > <column name="NUMBER" primaryKey="true" required="true" size="20" > type="VARCHAR"/> > > <column name="ENTITY_TYPE" inheritance="single" primaryKey="false" > required="true" size="128" type="VARCHAR"> > <inheritance key="ENTITY_ASSET" class="MyAsset" > extends="demo.om.NumberedObject"/> > </column> > </table> > > <table > name="MY_ASSET" > javaName="MyAsset" > idMethod="idbroker" > skipSql="false"> > > <column name="TEST_01" primaryKey="true" required="true" size="50" > type="VARCHAR"/> > <column name="TEST_02" primaryKey="false" required="false" size="50" > type="VARCHAR"/> > </table> > > </database> > ________________________________END XML ____________________________________ > > The problem is that non-compilable java code is being generated. > Because of the inheritance, the generated class MyAsset now extends > NumberedObject: > public class MyAsset extends demo.om.NumberedObject > > This is what wanted, but normally MyAsset should extend BaseMyAsset, and in > fact it still should. > > Because of this, the generated OM base-peer classes are now non-compilable. > It looks like the > implemented inheritance model clashes with the implemented OM-peer model, > cause in java only > one class can be extended. > > I do need to use subclasses, but i do not know how to implement them if > above doesn't work! > > Are my observations correct? How can i implement class hierarchy? > > Roger Janssen > > ************************************************************************* > The information contained in this communication is confidential and is > intended solely for the use of the individual or entity to whom it is > addressed.You should not copy, disclose or distribute this communication > without the authority of iBanx bv. iBanx bv is neither liable for > the proper and complete transmission of the information has been maintained > nor that the communication is free of viruses, interceptions or interference. > > If you are not the intended recipient of this communication please return > the communication to the sender and delete and destroy all copies. -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
