Does TopLink support arrays of primitive types?

You must use a collection.
If you really wanted to you could store the data as an array and use get/set methods to convert between the array and collection, or customize your own ContainerPolicy, however arrays a very inefficent to add/remove from so TopLink only provides support for collections.

Similar Messages

Array Of Primitive Type (kodo3.4)

Hello,
I want to map an array of primitive type (double[] or double[][] or...) to
a blob, so I specified the mapping this way:
<extension vendor-name="kodo" key="jdbc-field-map-name" value="blob">
<extension vendor-name="kodo" key="column" value="DATA"/>
</extension>
As I use MySQL and not to have an exception, I have added:
kodo.jdbc.DBDictionary: DriverDeserializesBlobs=false
But when I tried to refresh using kodo.jdbc.meta.MappingTool, I get:
[refresh] Exception in thread "main" kodo.util.FatalInternalException:
Cannot map "fr.ifp.reservoir.model.business.geostat.Lithotype.facies".
Check the class and make sure you are using only supported types.
[refresh] at
kodo.jdbc.meta.DynamicMappingProvider.createFieldMapping(DynamicMappingProvider.java:336)
[refresh] at
kodo.jdbc.meta.DynamicMappingProvider.getFieldMapping(DynamicMappingProvider.java:118)
[refresh] at
kodo.jdbc.meta.MappingRepository.getFieldMapping(MappingRepository.java:470)
[refresh] at
kodo.jdbc.meta.AbstractClassMapping.getFieldMapping(AbstractClassMapping.java:993)
[refresh] at
kodo.jdbc.meta.AbstractClassMapping.getFieldMapping(AbstractClassMapping.java:973)
[refresh] at
kodo.jdbc.meta.AbstractClassMapping.getMappings(AbstractClassMapping.java:939)
[refresh] at
kodo.jdbc.meta.AbstractClassMapping.getDeclaredFieldMappings(AbstractClassMapping.java:659)
[refresh] at
kodo.jdbc.meta.AbstractClassMapping.resolve(AbstractClassMapping.java:801)
[refresh] at
kodo.jdbc.meta.BaseClassMapping.resolve(BaseClassMapping.java:341)
[refresh] at
kodo.jdbc.meta.MappingRepository.resolve(MappingRepository.java:431)
[refresh] at
kodo.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:349)
[refresh] at
kodo.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:177)
[refresh] at kodo.jdbc.meta.MappingTool.refresh(MappingTool.java:591)
[refresh] at kodo.jdbc.meta.MappingTool.run(MappingTool.java:941)
[refresh] at kodo.jdbc.meta.MappingTool.run(MappingTool.java:879)
[refresh] at kodo.jdbc.meta.MappingTool.main(MappingTool.java:802)
Thanks for your help.
nicolas

Hi,
No more succes with persistence-modifier="persistent"...
My class:
public class ArrayWrapper {
private String name;
private double[] array;
public ArrayWrapper(String name, double[] array) {
this.name = name;
this.array = array;
public double[] getValues() {
return array;
public String getName() {
return name;
My metadata file:
<jdo>
<package name="model">
<class name="ArrayWrapper">
<field name="array" persistence-modifier="persistent">
<extension vendor-name="kodo" key="jdbc-field-map-name" value="blob">
<extension vendor-name="kodo" key="column" value="DATA"/>
</extension>
</field>
</class>
</package>
</jdo>
My StackTrace:
refresh-mapping:
[java] Exception in thread "main" kodo.util.FatalInternalException:
Cannot map "model.ArrayWrapper.array". Check the class and make sure you
are using only supported types.
[java] at
kodo.jdbc.meta.DynamicMappingProvider.createFieldMapping(DynamicMappingProvider.java:336)
[java] at
kodo.jdbc.meta.DynamicMappingProvider.getFieldMapping(DynamicMappingProvider.java:118)
[java] at
kodo.jdbc.meta.MappingRepository.getFieldMapping(MappingRepository.java:470)
[java] at
kodo.jdbc.meta.AbstractClassMapping.getFieldMapping(AbstractClassMapping.java:993)
[java] at
kodo.jdbc.meta.AbstractClassMapping.getFieldMapping(AbstractClassMapping.java:973)
[java] at
kodo.jdbc.meta.AbstractClassMapping.getMappings(AbstractClassMapping.java:939)
[java] at
kodo.jdbc.meta.AbstractClassMapping.getDeclaredFieldMappings(AbstractClassMapping.java:659)
[java] at
kodo.jdbc.meta.AbstractClassMapping.resolve(AbstractClassMapping.java:801)
[java] at
kodo.jdbc.meta.BaseClassMapping.resolve(BaseClassMapping.java:341)
[java] at
kodo.jdbc.meta.MappingRepository.resolve(MappingRepository.java:431)
[java] at
kodo.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:349)
[java] at
kodo.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:177)
[java] at kodo.jdbc.meta.MappingTool.refresh(MappingTool.java:591)
[java] at kodo.jdbc.meta.MappingTool.run(MappingTool.java:941)
[java] at kodo.jdbc.meta.MappingTool.run(MappingTool.java:879)
[java] at kodo.jdbc.meta.MappingTool.main(MappingTool.java:802)

Xdb_installation_trigger does not support object creation of type SNAPSHOT

hi everyone, i'm using Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit on solaris sparc 5.10
we like to send an email through SSL, and after searching here and there I found out that oracle DB 11g able to go throught the SSL.
since upgrade our DB to 11g would not be an option, so i tried to export XDB of 11g and import it into XDB 10gR2 schema, it was a mess...
then i just reinstall XDB using catnoqm.sql & catqm.sql
and now one of our programmer cant run some script like above
CREATE MATERIALIZED VIEW FIFSYS_MKT_SCHEME_MV_COY
TABLESPACE MARKETING_TABLES
PCTUSED    40
PCTFREE    10
INITRANS   2
MAXTRANS   255
STORAGE    (
INITIAL          64K
MINEXTENTS       1
MAXEXTENTS       UNLIMITED
PCTINCREASE      0
FREELISTS        1
FREELIST GROUPS 1
BUFFER_POOL      DEFAULT
+)+
NOCACHE
LOGGING
NOCOMPRESS
NOPARALLEL
BUILD IMMEDIATE
REFRESH FORCE ON DEMAND
WITH PRIMARY KEY
AS
+/* Formatted on 9/23/2010 1:07:42 PM (QP5 v5.114.809.3010) */+
SELECT   coy_id,
appl_branch_id,
appl_object_code,
product_type,
ppdcf_paid_date,
SUM (scheme_adm) scheme_adm,
SUM (appl_unit) appl_unit,
SYSDATE mkt_sysdate
FROM   (SELECT   NVL (a.coy_id, '01') coy_id,
a.branch_id appl_branch_id,
DECODE (a.buss_unit, 'NMC', '2101', 'UMC', '2102', '2352')
appl_object_code,
a.platform product_type,
TRUNC (c.contract_active_date) ppdcf_paid_date,
NVL (s.ms_amt, 0) scheme_adm,
NVL (o.total_item, 0) appl_unit
FROM   ordmgmt.om_trn_appl_ms_lvl_object s,
ordmgmt.om_trn_appl_hdr a,
acctmgmt.ar_trn_sum_contracts c,
+( SELECT appl_no, COUNT ( * ) total_item+
FROM   ordmgmt.om_trn_appl_object
GROUP BY   appl_no) o
WHERE       s.appl_no = a.appl_no
AND a.appl_no = o.appl_no
AND s.ms_code IN ('MS03', 'MS14')
AND c.appl_no = a.appl_no
AND c.contract_no = a.contract_no
+/*AND c.office_code = a.branch_id*/+
AND NVL (a.coy_id, '01') = NVL (c.coy_id, '01'))
GROUP BY   coy_id,
appl_branch_id,
appl_object_code,
product_type,
ppdcf_paid_date;
COMMENT ON MATERIALIZED VIEW FIFSYS_MKT_SCHEME_MV_COY IS 'snapshot table for snapshot MARKETING.FIFSYS_MKT_SCHEME_MV_COY';
and this error shown:
ORA-00604 error occurred at recursive SQL level 1
ORA-20000 Trigger xdb_installation_trigger does not support object creation of type SNAPSHOT
ORA-06512 at line 32
maybe some of you know how to solve this problem??
and, this in the script of the xdb_installation_trigger
DROP TRIGGER SYS.XDB_INSTALLATION_TRIGGER;
CREATE OR REPLACE TRIGGER SYS.xdb_installation_trigger
BEFORE
CREATE ON DATABASE
DECLARE
sql_text varchar2(200);
val number;
BEGIN
if (dictionary_obj_owner != 'XDB') then
if (dictionary_obj_type = 'FUNCTION' or
dictionary_obj_type = 'INDEX' or
dictionary_obj_type = 'PACKAGE' or
dictionary_obj_type = 'PACKAGE BODY' or
dictionary_obj_type = 'PROCEDURE' or
dictionary_obj_type = 'SYNONYM' or
dictionary_obj_type = 'TABLE' or
dictionary_obj_type = 'TABLESPACE' or
dictionary_obj_type = 'TYPE' or
dictionary_obj_type = 'VIEW' or
dictionary_obj_type = 'USER'
+)then+
if (dictionary_obj_type != 'PACKAGE BODY'
+) then+
sql_text := 'select count(*) from ALL_OBJECTS where owner = :1 and object_name = :2 and object_type = :3';
execute immediate sql_text into val using dictionary_obj_owner, dictionary_obj_name, dictionary_obj_type;
if (val = 0) then
sql_text := 'select count(*) from dropped_xdb_instll_tab where owner = :1 and object_name = :2 and object_type = :3';
execute immediate sql_text into val using dictionary_obj_owner, dictionary_obj_name, dictionary_obj_type;
if (val = 0) then
insert into xdb_installation_tab values
+(dictionary_obj_owner, dictionary_obj_name, dictionary_obj_type);+
end if;
end if;
end if;
else
raise_application_error(-20000, 'Trigger xdb_installation_trigger does not support object creation of type '||dictionary_obj_type);
end if;
end if;
end;
+/+
/********************************************************************************/

i'm so careless, after checking a fresh installation of the same version DB, i dont found xdb_installation_trigger.
so just by simply remove that trigger & everything works just fine. :)

Need suggestion for variable size array of primitive type.

Hi all,
I am working on a problem in which I need to keep an array of primitive (type int) sorted. Also I insert new elements while keeping it sorted, and at times I merge two similar arrays with unique elements.
I would welcome suggestions on the implementation aspects as to which type/class to use. My primary consideration is performance. Here are my observations:
1. type int
Efficient operation, but arrays are fixed size so it makes clumsy code and overhead when the array is expanded or merged with another.
Methods in class Arrays can be used, incl. binary search and sort.
2. Vector, ArrayList, List, LinkedList
Accept objects only. I can use Integer instead of int, but it will involve overhead, and I'll need to write my own sort and search routines (already done).
For now, I choose option 2 using Vectors. Is there a better choice, or are there other options, given the conditions and consideration enumerated at the beginning?
Appreciate any input or comments.

mathmate wrote:
I have not had the occasion to use them in parallel to recognize the difference. It pays to talk to people!A small benchmark is easily constructed:
import bak.pcj.list.IntArrayList;
import java.util.Random;
import java.util.ArrayList;
public class CollectionTest {
    static void testObjectsList(ArrayList<Integer> list, int n, long seed) {
        long start = System.currentTimeMillis();
        Random rand = new Random(seed);
        for(int i = 0; i < n; i++)
            list.add(new Integer(rand.nextInt()));
        for(int i = 0; i < n/2; i++)
            list.remove(rand.nextInt(list.size()));
        long end = System.currentTimeMillis();
        System.out.println("objectsList -> "+(end-start)+" ms.");
    static void testPrimitiveList(IntArrayList list, int n, long seed) {
        long start = System.currentTimeMillis();
        Random rand = new Random(seed);
        for(int i = 0; i < n; i++)
            list.add(rand.nextInt());
        for(int i = 0; i < n/2; i++)
            list.remove(rand.nextInt(list.size()));
        long end = System.currentTimeMillis();
        System.out.println("primitiveList -> "+(end-start)+" ms.");
    public static void main(String[] args) {
        long seed = System.currentTimeMillis();
        int numTests = 100000;
        testObjectsList(new ArrayList<Integer>(), numTests, seed);
        testPrimitiveList(new IntArrayList(), numTests, seed);
}In the test above, Java's ArrayList is about 5 times faster. But when commenting out the remove(...) methods, the primitive 3rd party IntArrayList is about 4 to 5 times faster.
Give it a spin.
Again: just try to do it with the standard classes: if performance lacks, look at something else.

Software Component does not support selected Development Component Type...

Hi,
I have a problem, i want create a new project of Mobile Service Component, but, when i want select MyComponents [demo.sap.com], in the top appear:
"Software Component does not support selected Development Component Type. Required DCs are located in an SC that is not visible from the selected SC "
Why?
Thanks in advance,
Regards,

Hi Victor,
the issue is that the archive pool in your NWDS is not set up properly. Could you check the configuration of the development configuration? I guess you are developing in Local Development, right? Please check in the "Component Browser" that the two Software Components "NWMCLIENT" and "XOCA" are present and contain some DCs inside them. If this is not true, than something went wrong with your setup of the IDE. The modifications of the default.confdef are most likely not right.
Please come back to me if you don´t know how to proceed.
Regards,
Stefan

Does TopLink support JBoss App Server?

My company is a software development company. So, we use many application servers for our customers.
I found that TopLink supports OC4J, WebLogic and WebSphere, but I don't know, Does TopLink support JBoss? I just downloaded TopLink for test yesterday, so, I don't know much about TopLink, but my current project uses JBoss.
Please give me some suggestion that might help me to refine my project.
Thank you so much.

Yes it does and there are customers using JBOSS. TopLink supports any app server and, in fact, doesn't even require an app server -- and compliant JVM will do just fine.

Log onto incoming mail server (POP3): Your server does not support the connection encryption type you have specified. Try changing the encryption method. Contact your mail server administrator or Internet service provider (ISP) for additional assistance.

Hi All,
This is my first post to ms exchange forum am getting Log onto incoming mail server (POP3): Your server does not support the connection encryption type you have specified. Try changing the encryption method. Contact your mail server administrator
or Internet service provider (ISP) for additional assistance. in my outlook clients, till last Sunday (12.04.15) my exchange was well & good, Monday morning suddenly the problem started like none of our outlook pop3 clients are able to communicate
with exchange (rest IMAP, SMTP & Exchange accounts are working fine). i have tried with all port no but no luck. please help me to get raid of this one.
Exchange 2013 CU6 with server 2012 Std 64Bit
Thanks,
Murali

Dear All,
I have found the solution for above problem, the problem has occur due to PopProxy inactivity
please find relevant exchange management shell commends below.
1. Get-ServerComponentstate -Identity <yourmailserver.com>
Server Component State
yourmailserver.com ServerWideOffline Active
yourmailserver.com HubTransport Active
yourmailserver.com FrontendTransport Active
yourmailserver.com Monitoring Active
yourmailserver.com RecoveryActionsEnabled Active
yourmailserver.com AutoDiscoverProxy Active
yourmailserver.com ActiveSyncProxy Active
yourmailserver.com EcpProxy Active
yourmailserver.com EwsProxy Active
yourmailserver.com ImapProxy Active
yourmailserver.com OabProxy Active
yourmailserver.com OwaProxy Active
yourmailserver.com PopProxy Inactive
yourmailserver.com PushNotificationsProxy Active
yourmailserver.com RpsProxy Active
yourmailserver.com RwsProxy Active
yourmailserver.com RpcProxy Active
yourmailserver.com UMCallRouter Active
yourmailserver.com XropProxy Active
yourmailserver.com HttpProxyAvailabilityGroup Active
yourmailserver.com ForwardSyncDaemon Active
yourmailserver.com ProvisioningRps Active
yourmailserver.com MapiProxy Active
yourmailserver.com EdgeTransport Active
yourmailserver.com HighAvailability Active
yourmailserver.com SharedCache Active
2. Set-ServerComponentState -Identity <yourmailserver.com> -Component PopProxy -Requester HealthAPI
-State Active
3. Get-ServerComponentstate -Identity <yourmailserver.com>
Server Component State
yourmailserver.com ServerWideOffline Active
yourmailserver.com HubTransport Active
yourmailserver.com FrontendTransport Active
yourmailserver.com Monitoring Active
yourmailserver.com RecoveryActionsEnabled Active
yourmailserver.com AutoDiscoverProxy Active
yourmailserver.com ActiveSyncProxy Active
yourmailserver.com EcpProxy Active
yourmailserver.com EwsProxy Active
yourmailserver.com ImapProxy Active
yourmailserver.com OabProxy Active
yourmailserver.com OwaProxy Active
yourmailserver.com PopProxy Active
yourmailserver.com PushNotificationsProxy Active
yourmailserver.com RpsProxy Active
yourmailserver.com RwsProxy Active
yourmailserver.com RpcProxy Active
yourmailserver.com UMCallRouter Active
yourmailserver.com XropProxy Active
yourmailserver.com HttpProxyAvailabilityGroup Active
yourmailserver.com ForwardSyncDaemon Active
yourmailserver.com ProvisioningRps Active
yourmailserver.com MapiProxy Active
yourmailserver.com EdgeTransport Active
yourmailserver.com HighAvailability Active
yourmailserver.com SharedCache Activ
Replace yourmailserver.com with your server host name.
Thanks

Does OTL support array type?

My C++ code talks with PL/SQL through OTL. I want to define one of the input parameter of PL/SQL as array, can OTL support array? Is there any sample code? Thanks!

Hi,
I cannot find a OTL forum in OTN, so posted here.
That's because OTL is not an Oracle product.
The link you provided has a link to the OTL discussion forum:
http://sourceforge.net/forum/forum.php?forum_id=208859
Perhaps that would be a better place to post your question.
Regards,
Mark

Does oracle support array in SQL?

The follow syntax for postgresql works with good performance, does Oracle support? Thanks
select
     r.company_code,
     r.date,
     r.d5[1] as d5_udm,
     r.d5[2] as d5_ddm,
     r.d5[3] as d5_tr,
from (
     select
          q.company_code,
          q.date,
          (select array[avg(abs(highest_rate-opening_rate)), avg(abs(opening_rate-lowest_rate)), avg(highest_rate-lowest_rate)] from (select lowest_rate, highest_rate, opening_rate from hkex.quotation q1 where not q1.is_trade_suspend and q1.company_code=q.company_code and q1.date<=q.date order by q1.date desc limit 5) t) as d5
     from hkex.quotation q
     where not q.is_trade_suspend
) r;

Hi,
I'm not a postgresql exponent but the following query might work, though I haven't tested it.
select
r.company_code,
r.date,
udm as d5_udm,
ddm as d5_ddm,
tr as d5_tr,
from (
select
q.company_code,
q.date,
(select avg(abs(highest_rate-opening_rate)) udm,
          avg(abs(opening_rate-lowest_rate)) ddm,
          avg(highest_rate-lowest_rate) tr
from (select lowest_rate, highest_rate, opening_rate
        from hkex.quotation q1
        where not q1.is_trade_suspend = '0' -- as below
        and q1.company_code=q.company_code
        and q1.date<=q.date
        order by q1.date desc limit 5) t) as d5   -- not sure what limit 5 does (possibly first 5 rows?)
from hkex.quotation q
where q.is_trade_suspend = '0' -- Oracle does not support boolean data type for columns so change col to varchar2(1) with '0' and '1' for false and true
) r;Andre
Edited by: acadet on Mar 4, 2010 3:43 PM

Does reader support saveAs conversion file types ?

Hello,
The "JavaScript for Acrobat API Reference" doc specifies that second parameter 'cConvID' of the doc.saveAs function is conversion file type id. This method is supported since 5.0 version. There is no restrictions available for reader accept security.
I tried to convert pdf document to tiff using folder level script:
doc.saveAs("/e/test.tiff", "com.adobe.Acrobat.tiff");
This produced the following error: "An unimplemented or obsolete function was called". I'm sure this is not a security issue as I'm able to save the document as pdf if second parameter is not specifed.
From another side I tried to test which conversion types are supported and executed the following code:
for ( var i = 0; i < app.fromPDFConverters.length; i++)
app.alert(app.fromPDFConverters[i]);
In this case I got: "Get not possible, invalid or unknown" on app.fromPDFConverters. My document is not hidden and this app property is supported from 6.0 reader version without any restrictions.
I don't have an idea what's wrong here - the only explanation that reader scripting does not support conversions. Online Help states these features are supported:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.524.html
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.110.html
Reader versions I tested it: 9.3 and 9.3.3 with win7 and Snow Leopard. If you have any related info please share it with me.
Thank you a lot,
Alexey

Hi GKaiseril, thank you for reply,
There are my answers:
Have you read the section about the 'quick bar' which appears at the top of each object, property, or method page?
- yes, I read
What is the box at the far right of the bar for?
- Availability
What is the meaning of the black 'S' in that box mean?
- Requires the document save right, my document has extended usage rights including save. In addition, I'm able to save the document using saveAs function without second param specified. The problem is only reproduced if I specify conversion type id.
Have you looked in those references for the application object's 'viewerType' and 'viewerVariation' properties, and the description for the quick bars?
- Yes, I looked. There is no such restriction for the method and property specified.
What are the values for those properties?
The first box indicates that saveAs was first added to Acrobat/Reader in version 5.0. The box at the far right of the bar show S - means you need document save right only, so saveAs function will work in all versions and variations of Acrobat, including Adobe Reader since 5.0 version and if document have Save usage rights.
Have you read the section about trusted and privileged functions?
- yes, I read. Again, I'm able to save my document without specifying the second argument - it means my script environment and function call conditions satisfy the requirements.
The note for the 'saveAs' method:
"Note: This method can only be executed during a batch or console event. See Privileged versus non-privileged context for details. The event object contains a discussion of JavaScript events."
- it also can be executed from folder level scripts. For reader you need extended usage rights.
Reader can only save as a PDF.
- Could you please provide more info/links for this statement? Accordingly to online help it should be possible to use "saveAs" function with conversion type id for reader.
How to save a PDF with Acrobat JavaScript by Thom Parker - I read it sometime ago - did not find anything related to the issue.
Thank you,
Alexey

Configure array of primitive type for POF

My impression is that Coherence's POF implementation can handle Java primitive and String by default thus we don't need to provide a customized POF configuration file if the object been put into the cache is Java primitive type.
How about arrary of primitive type? For example, byte[]. Can Coherence's POF implementation handle byte[] as well?

Just asking since we plan to move from using Externalizable to POF and not sure if we need special handling for byte[] type.
Thanks for the reply.
Regards,
Chen

Does toplink support selecting an interval from a ResultSet ?

Hi,
I wonder if Toplink supports selecting an interval of rows before creating Java objects. I think I can do this myself using CursorStream but that would take more time to ignoring created java objects than ignoring items (rows) from query result.
actually the purpose is to simulate cursor. since a cursor is quite expensice to keep in memory for long time, but still the applications, working with a paging logic, want to select one page of objects each time they make a call to toplink, I need to provide them with this functionality.
for example there is a retrieve request that would result in 1000 objects. in the first call, they want to retrieve 0-50, in the second call 50-100, and so on.
ps : I don't let these applications keep a cursor on behald of them on the server.
thanks.
Erdem.

ScrollableCursors support intervals and positioning the result set.

Does toplink supports java 5

My application uses Java 5. So i want to use my classes in toplink workbench.
I wan to know whether toplink supports java 5 classes.
Thanks & Regards

Yes, As of the 10.1.3.0 release TopLink supports the usage of Java 5 classes.
Doug

Does Toplink support PL/SQL storedProcedure (cursor + join operation)

Hi,
Context:- There are two table with relation (Emp, Dept). I am getting data from both table by using Join opeation.
I am working on Toplink storedProcedureCall and want to get PL/SQL Cursor + join operation
for example:- select d.dname,e.ename,e.sal from emp e, dept d where e.deptno=d.deptno;
it's working fine but, when I am dragging DataControl on Form it's only showing EMP attribute but, I need to both EMP,DEPT attribute so that I can display ADF readonly Table control.
please, help me out. Thanking You.
regards,
sufi

Hello Adilz,
You seem to have posted a number of times trying to get cursors to work. Cursors do work, and in this case it looks like your stored proc is not working because the procedure you are calling does not accept any output variables - hence the error stating the wrong number of arguments.
Try defining read_emp and ename in your stored procedure definition in the database.
Best Regards,
Chris

Does toplink support MySQL database?

Toplink seems don't support mysql db, because there is no a mysqlplatform class.
Any idea?

I would recommend just trying the Sybase platform and Sybase Mapping Workbench configuration, I am told by some customers that it "just works".
The xxxPlatform.java class contains code that describes the unique properties of each database. If you look at the code, it is pretty self explanatory. It has for example what kind of braces "(" or "{" or "[" to use in what situations, how to format a date, and so on.
- Don

Does TopLink support arrays of primitive types?

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