oracle-databaseibatisibatis.netmybatis

iBatis.NET to insert record with Oracle stored procedure, return record ID


I am attempting to insert a record in an Oracle table with a Function, which would be called through iBatis.NET. Function works as expected in Oracle when called directly.

I have tried using <statement> and <insert> SqlMap but I can't get iBatis.NET to call the function, and Oracle doesn't support returning anything from Stored Procedure.

I would need to pass properties of my object as parameters to a function/sproc and get back the ID of this new record.

What would be a good combination of iBatis.NET call / SQLMap / Sproc or Function signature in Oracle?

The documentation only has examples of in-line SQL and I can only use sprocs.

Due to the number of properties in real objects, the hash-map and number of parameters is in the 30+.

Ideally I would be able to do this (doesn't work):

<procedure id="InsertPerson" parameterClass="BOM.Person"> TestDB.PERSON_PKG.InsertPerson(#Name#, #Age#) </procedure>

Domain object:

public class Person
{
    int ID { get; set; }
    string Name { get; set; }
    decimal Age { get; set; }
}

iBatis.NET call:

int personID = mapper.Insert("InsertPerson", person);

Oracle Stored Procedure:

   FUNCTION InsertPerson(
             p_Name IN Persons.Name%TYPE,
             p_Age IN Persons.Age%TYPE,
             ) RETURN NUMBER
   IS
             NEW_ID Persons.ID%TYPE;
   BEGIN
            SELECT Persons_SEQ.NEXTVAL INTO NEW_ID FROM DUAL; /* Get new ID*/

            INSERT INTO Persons(ID, Name, Age)
            SELECT NEW_ID, p_Name, p_Age from dual; /* Insert record */
            COMMIT;

            RETURN NEW_ID;
   END;

Solution

  • In case this helps someone else, I was unable to find a workaround to my problem.

    I ended up implementing this as a Stored Procedure which takes input parameters for all fields to be inserted in to a table, and one output parameter which returns the unique ID generated by sequence.

    After executing mapper.Insert(...) I simply read the output parameter and return it.

    C#:

    mapper.BeginTransaction(System.Data.IsolationLevel.Serializable);
    
    // Add new Record
    Hashtable param = new Hashtable();
    param.Add("ID", user.ID); // Output
    param.Add("DeptID", user.DeptID);
    param.Add("RightID", user.RightID);
    
    mapper.Insert("AddUserRight", param);
    
    user.ID = Convert.ToInt32(param["ID"]);
    

    MyBATIS map:

    <?xml version="1.0" encoding="utf-8" ?>
    <sqlMap namespace="CCP" xmlns="http://ibatis.apache.org/mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <statements>
            <procedure id="AddUserRight" parameterMap="AddUserRight-param">
                Database.USER_PKG.ADDUSERRIGHT
            </procedure>
        </statements>
    
        <parameterMaps>
            <parameterMap id="AddUserRight-param">
                <parameter property="ID" column="ID" direction="Output" />
                <parameter property="DeptID" column="DeptID" direction="Input" />
                <parameter property="RightID" column="RightID" direction="Input" />
            </parameterMap>
        </parameterMaps>
    </sqlMap>
    

    Sproc (Oracle):

       PROCEDURE AddUserRight(
                ID OUT USERRIGHTS.USERID%TYPE,
                DEPTID IN USERRIGHTS.DEPTID%TYPE,
                RIGHTID IN USERRIGHTS.RIGHTID%TYPE)
       IS
       BEGIN
            SELECT USERRIGHTS_UNQ_SEQ.NEXTVAL INTO ID FROM DUAL;
    
                 INSERT INTO USERRIGHTS(ID, DEPTID, RIGHTID)
                 VALUES (ID, DEPTID, RIGHTID);
       END;