Returning multiple object types using hibernate using an inner join
I seem to be having some difficulty with a query in hibernate. I am performing an inner join on two tables.
SELECT * FROM product p INNER JOIN warehouse w ON
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As coding_idiot said, maybe you don't know the entity for your query result because they are from different classes, you can access to every object in the element.
- Create a
Listto retrieve the query result (Example:List) - Iterate through this array using a for (Example:
for (Object obj : objs){...}) - Every element of
Listhas got aObject[]so cast every element to this class (Example:Object[] o = (Object[]) obj;) - Access to the element through its index number (Example:
o[4])
Code sample:
Query query = JPA.em().createNativeQuery("SELECT * FROM product p INNER JOIN warehouse w ON p.wid = w.id"); /* I suppose that it return fields sorted by entities and field in database: * * 0: product.id | 1: product.name | 2: product.wid | 3: product.price | 4: product.stock | n-1: product.N-1Field * n: warehouse.id | n+1: name | n+2: warehouse.city | n+3: warehouse.lat | n+4: warehouse.long | m-1: warehouse.M-1Field * * Join result: id | name | wid | price | stock | ... | id | name | city | lat | long | ... */ List - Create a
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