使用JPA 2.1 / Hibernate 4将值列表传递给存储过程

Question

I have a stored procedure that takes in a list of strings (and follows limitations on stored procedures, according to Hibernate docs ):

PROCEDURE count_active_esc(p_count OUT NUMBER, p_codes IN string_list);

where string_list is a custom type:

CREATE OR REPLACE TYPE string_list IS TABLE OF VARCHAR(100)

and want to to call it from JPA entity manager ( a new feature in JPA 2.1 ).

I tried to use an array:

StoredProcedreQuery query = entityManager.createNamedStoredProcedureQuery("count_active_esc");
query.registerStoredProcedureParameter("p_count", Integer.class, ParameterMode.OUT);
query.registerStoredProcedureParameter("p_codes", String[].class, ParameterMode.IN);
query.setParameter("p_codes", new String[] { "AEST" });

query.getOutputParameterValue("p_count"); // <<<<< throws an exception

and got an exception:

    PLS-00306: wrong number or types of arguments in call to 'COUNT_ACTIVE_ESC'
    ORA-06550: line 1, column 7:
    PL/SQL: Statement ignored

And if I pass in a list:

StoredProcedreQuery query = entityManager.createNamedStoredProcedureQuery("count_active_esc");
query.registerStoredProcedureParameter("p_count", Integer.class, ParameterMode.OUT);
query.registerStoredProcedureParameter("p_codes", List.class, ParameterMode.IN); // <<<<< throws an exception
query.setParameter("p_codes", new ArrayList<String> {{ "AEST" }});

query.getOutputParameterValue("p_count");

it throws java.lang.IllegalArgumentException: Type cannot be null

Also adding query.setHint("org.hibernate.callable", "true") didn't help.

What is the correct way of doing this in JPA or Hibernate? Is it at all possible without resorting to JDBC?

Environment: JPA 2.1, Hibernate 4.3.5, Oracle

Answer 1

将Integer.class更改为Types.INTEGER