JBO-27022 within ADF Module, JHeadstart 10

Question

(oracle.jbo.AttributeLoadException) JBO-27022: Failed to load value at index 4 with java object of type java.lang.String due to java.sql.SQLException.
LEVEL 1: DETAIL 0
(java.sql.SQLException) Fail to convert to internal representation
The above is the error message received from within the ADF Module executed with Test. Using JDeveloper 10.1.3 4 with the latest Jheadstart 10 release. The application and ADF definitions are simple - one entity and six views of that entity differing only on a where clause which has the same form in all cases: "where status_ind = 'value'".
It is failing attempting to read the 10th record, having successfully read the first 9 records. For testing purposes (to isolate this problem) I constructed the test data from the original data. Using the original data, the test of the module failed on the 5th record. The original records contains a single integer surrogate key that is populated via an Oracle sequence number referenced within an Insert Trigger on the database. To determine if the failure was based on the record or the number of records read, I constructed the test data such that from the original data as follows:
Record 1, record 1, record 2, record 2, record 3, record 3, record 4, record 4, record 5, record 5 ...., where the record # refers to the original data. The Test of the Module again fails on the 5th record's data, but it read the 1st Record 5 correctly, while failing on the 2nd Record 5. Since these records are or should be identical, except for the integer sequence number field (which is in index 10 -- that is the key is not in index position 4).
The field in Index 4 is a varchar2(30) and whose value is BAV (that is, only 3 characters long, no padding). The base classes remain the standard oracle.jbo.xxxx classes and not any jhs classes.
I'm at a loss why the exception, especially since the fields contents are the same between Record 9 and Record 10, with the primary key of integer 9 and 10 respectively.
NB: Running under Mac OSX 10.5.7 and latest JVM 1.5 from Apple

Answer 1

Hi,
Jhsadfrt contains all the runtime components for JHS. For the model layer, this includes the JhsApplicationModuleImpl (which will be used as the superclass for your appmodule) and the JhsModelService, which will be used as a nested application module within your applicaton module. The last one will only be used when you use database-dynamic options such as flex fields, custom security and database-based internationalization. In those cases, JHeadstart provides its own screens which will use these business components to display their data.
Libraries such as Commons Logging, Oracle Intermedia and SQLJ Runtime (allthough I'm not 100% sure of the last) are used by these JHeadstart extensions to the model. So you will need them, otherwise your project might fail to run.
Hope this answers your question.
Regards,
Evert-Jan de Bruin
JHeadstart Team