I have a table called "TEST" which has column "Sample_ID" , and it can take values (ID's) from three tables "MATERIAL", "APPLIANCE", "PRODUCT", I have concrete class for all the tables, I used many to many relationship it didn't work. I know that a foreign key cannot have multiple parent key, is there any trick in hibernate where I can specify relationship in xml file, so that Sample_ID can take ID values from 3 concrete class.

To solve the above problem I used <any name="propertyType"> but Iam getting error element type <meta value > must be declared