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Re: [eclipselink-users] About Oracle User defined types
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The Stored Procedures is in an oracle database. The procedure returns a sys_refcursor, where the cursor has the following fields:
ID: it's a number field type.
Prices List: It's a list of Price type. An oracle user defined type with te following structure:
* Id of price item: Number field
* priceAmount: amount. It's a NUMBER(12, 5) field.
If i used DataReadQuery with a StoredProcedureCall, the result list when the query is executed has a list of DatabaseRecord, where the records has an object array for the prices list.
I need to obtain the prices values, but using DataReadQuery the prices list is returned as an Object array, with Object type elements, and no possibilities to cast to the desired object.
Help.
2012/1/20 Tom Ware
<tom.ware@xxxxxxxxxx>
Can you explain a little more about what this custom type is? We provide a number of ways you can deal with special types and your choice will depend on how it is derived.
At the simplest level, you can specify a Converter on the object that maps to the special type. That will allow you do do some operations.
http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#Using_EclipseLink_JPA_Converters
Alternately, we have an event mechanism that will allow you to access the data at various points in the query.
http://www.eclipse.org/eclipselink/api/2.3/index.html
If the data structure is, in fact, a Struct, you may be able to make use of our StructConverter to operate on it as it enters and leaves the database.
http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_(ELUG)#How_to_Use_the_.40StructConverter_Annotation
-Tom
On 19/01/2012 4:08 PM, Luis Dominguez wrote:
Hi everybody.
I'm using eclipselink with JPA. Actually, i'm using eclipselink for a stored
procedure call. The results of the stored procedure have a "column", with a
custom type object value. The sentence
List<DatabaseRecord> queryResultList = (List) ((JpaEntityManager)
main.em.getDelegate()).getActiveSession().executeQuery(query, queryArgs);
recovers a list of DatabaseRecord, with a field as [Ljava.lang.Object;@10010ec
object. When i'm trying to iterate this array, only have a [Ljava.lang.Object;,
with no possibilities of see the data.
How i can do that?
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