public interface QueryRedirector
extends java.io.Serializable
Purpose: Query redirection allows for a named or parameterized query (or finder) to dynamically determine how the query is to be executed based on the arguments.
Description: An implementor of this interface can be given to a query to allow the user to have full control over the execution of the query. Redirection can be used to:
Note: If you execute the query on a UnitOfWork, the results register with that
UnitOfWork, so any objects you attempt to retrieve with the invoke
method must come from the Session Cache.
MethodBaseQueryRedirector
,
DatabaseQuery.setRedirector(org.eclipse.persistence.queries.QueryRedirector)
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
invokeQuery(DatabaseQuery query,
Record arguments,
Session session)
REQUIRED:
Perform the query.
|
java.lang.Object invokeQuery(DatabaseQuery query, Record arguments, Session session)