Database Adapter Problem

Hi, I have a BPEL process that whenever I try to edit any of the database adapters I get an "java.lang.nullpointerexception" error. The only place where I can think the problem could be is at the toplink mappings, as when I go there I get the error "There was a problem encountered loading the TopLink Mappings project: null". I have redone the process, and then it works, only to give the same error again later, without any changes begin made.
Please Help

I found the solotion!!
Create the view with a sqript and from sqlplus and NOT from Toad.
or
Goto <Project Folder> -> <database> -> <apps> -> <xxxx.view> ,go to the end, and remove the NUL value.
Thanks for the help any way!
Rafikki

Similar Messages

Problem with database adapter on plsql procedure with in/out parameters

running BPEL 10.1.3.1 and using the database adapter on a plsql procedure with in/out parameters I get errors
the plsql procedure:
create or replace procedure proc_with_clob_inout_parameter(
p_string in varchar2,
p_clob in out clob)
is
begin
p_clob := p_string;
end proc_with_clob_inout_parameter;
In BPEL I call this procedure. When I only assign a value to the p_string parameters (in a BPEL assign) all is well. When I also assign a value to the p_clob parameter the error occurs:
<part name="summary">
<summary>
file:/ora1/app/oracle/as101.3/bpel/domains/digitaaldossier/tmp/.bpel_janb_inout_1.0_f6908ccf864581b7265c362444e88075.tmp/twee.wsdl
[ twee_ptt::twee(InputParameters,OutputParameters) ] - WSIF JCA Execute of
operation 'twee' failed due to: Error while trying to prepare and execute
an API.
An error occurred while preparing and executing the
JANB.PROC_WITH_CLOB_PARAMETER2 API. Cause: java.sql.SQLException: Parameter
Type Conflict [Caused by: Parameter Type Conflict]
; nested exception is:
ORABPEL-11811
Error while trying to prepare and execute an API.
An error occurred while preparing and executing the
JANB.PROC_WITH_CLOB_INOUT_PARAMETER API. Cause: java.sql.SQLException: Parameter
Type Conflict [Caused by: Parameter Type Conflict]
Check to ensure that the API is defined in the database and that the
parameters match the signature of the API. Contact oracle support if error
is not fixable.
</summary>
</part>
In BPEL 10.1.2.0 this isn't a problem. I tested it against a 10.2.0.1 and a 10.2.0.2 database and in both situations I get the error with BPEL 10.1.3.1 and no error with BPEL 10.1.2.0
it appears to be a problem in the database adapter...
anyone with the same problems and/or a solution?

Not of any use to you, but we had exactly the same problem on Friday when we applied AS 10.1.2.2 Patchset on top of BPEL 10.1.2.0.2.
The clob in our pl/sql proc wan't declared as in/out but for some reasons JDeveloper had created a clob on the Output Parameter type in the db partner link xsd. I removed this and it worked. This code had been untouched , and working fine, for months.
I'll be raising an SR today.
Rob J

Database Adapter: Insert, relationships, sequences and problems of course

Hello Everyone!!
I'm trying to do an insert in an Oracle Express Database with a database adapter. I'm trying to do the insert in two tables: SOLICITUDES with a column called NUMSOLICITUD that is also the primary key of the table and it's populated from its own sequence and the other table whose name is DOCJUST with a field NUMSOL. SOLICITUDES has a 1:M relationship with DOCJUST and the fields used in this relationship are NUMSOLICITUD and NUMSOL. The problem is that when the adapter do the insert, the first insert made on SOLICITUDES is correct, but when it tries to insert in the DOCJUST table, when it's supposed to insert in NUMSOL the same value inserted in NUMSOLICITUDES instead of that, a NULL value is inserted in NUMSOL so the process fails. Is it because the NUMSOLICITUDES column is populated from a sequence? How can I resolve that?
Thanks!!

Hi,
OK, I found the following article: http://soa-bpel-esb.blogspot.com/2010/04/understanding-catch-and-catchall.html
Using the info from that article I have created a test flow, which contains the same insert database adapter as the production flow. I have placed the Invoke within its own scope and attached a "CatchAll" block to this scope. To this block I have added a "empty" step (do nothing).
In my tests, I see the desired results i.e. the second time I initiate the flow with the same data, the CatchAll block executes, which does nothing, and processing continues after the scope.
So far so good - my query is how would I catch the specific error of unique index violation rather than general catchall?
As before, and assistance/comments greatly appreciated.
Anit

Access to package through database adapter in Soa suite problems

Hi,
We have to build a bpel process that inserts data in Oracle EBS custom tables. We have to use Soa suite 10.1.3.4.0.
In Oracle EBS we have made a custom api with a pl/sql record and 2 pl/sql tables as argument.
When i made a database adapter, Jdeveloper made a wrapper package to translate to this custom api.
Under the user apps this works fine.
But I have the following problem: Our customer does not want us to connect to apps schema direct.
So we made another user that is granted to the custom api , the wrapper api and the types for the wrapper api.
I even created public synonyms for all these objects.
But still runtime in BPEL console these errors occurs:
An error occurred while preparing and executing the APPS.XXEPF_BPEL_VERWERK_ASSIGNMENT.XXEPF_INHUUR_ASS_BERICHT_PKG$ API. Cause: java.sql.SQLException: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
[Caused by: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'XXEPF_INHUUR_ASS_BERICHT_PKG$'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
When i update only the location in the wsdl:
     <jca:address location="eis/DB/inflex" UIConnectionName="eli_apps_ontw2"
          ManagedConnectionFactory="oracle.tip.adapter.db.DBManagedConnectionFactory" />
        </port>
to "eis/DB/inflex2" the same proces runs fine.
(inflex2 connects to apps and inflex2 to XXEBSBPELQ)
Anybody an idea?
Thanks, JD

Are the types defined in the same way in both schema's?
Vaguely remember that there was some restriction to use DB and EBS adapter that types had to be owned by the schema that was connecting to it. Please check the docs for this.
hth

Problem after restart of a database used by a database adapter in SOA suite

We are migration from Oracle interconnect to SOA suite. I am a bit worried that I am taking a backwards step in robust drift. I restarted a Oracle database that is used as an end point in both interconnect and SOA. In both cases the database adapter in interconnect and the partner link in SOA start throwing java error messages. This is not the problem, what worries me is that with Interconnect restarting the database adapter allows queued messages to be written to the database, nothing goes missing. But with SOA suite the messages that could not be delivered before restarting SOA suite end as "canceled" that is to say they do NOT get completed. What happened to guaranteed transaction delivery? or am i missing something.

Hi,
The JNDI Name to use for the service connection is "eis/DB/soademoDatabase".
This Database is a requirement of the course... (Chapter 4 of Getting Started with Oracle SOA Suite 11g R1 - A Hands-On Tutorial).

Problems while compiling a project that uses Database Adapter

Hi,
I am working on a small WebService that uses the Database Adapter to connect with the Oracle-Lite database. The process is a synchronous process which has client and DatabaseService as the partner link. The goal of this project is to get two inputs from the user and send it over to the DatabaseService for it to select the rows from the table based on the inputs sent. The process activity has an invoke function which had two varibles Invoke_1_inputVarible and Invoke_1_outputVarible. I have included the *.xds that contains the database schema. When I compile the project i get the following error
Error(38): [Error ORABPEL-10035]: wrong messageType [Description]: in line 38 of "D:\OraBPELPM_2\integration\jdev\jdev\mywork\Workspace1\Login\Login.bpel", messageType "{http://xmlns.oracle.com/pcbpel/adapter/db/ds/}EmployeeRole_msg" of variable "Invoke_1_dsSelect_InputVariable" does not match the expected messageType "{http://xmlns.oracle.com/pcbpel/adapter/db/ds/}dsSelect_inparameters" in <invoke>. [Potential fix]: make sure the correct variable is used in invoke.
My question is how do I assign correct messageType for the variables.
XSD File:
<?xml version = '1.0' encoding = 'UTF-8'?>
<xs:schema targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/Login" xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/top/Login" elementFormDefault="unqualified" attributeFormDefault="unqualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="EmployeeRoleCollection" type="EmployeeRoleCollection"/>
<xs:element name="EmployeeRole" type="EmployeeRole"/>
<xs:complexType name="EmployeeRoleCollection">
<xs:sequence>
<xs:element name="EmployeeRole" type="EmployeeRole" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="EmployeeRole">
<xs:sequence>
<xs:element name="empid" type="xs:decimal" minOccurs="0" nillable="true"/>
<xs:element name="password" type="xs:string" minOccurs="0" nillable="true"/>
<xs:element name="role" type="xs:string" minOccurs="0" nillable="true"/>
<xs:element name="uid" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:element name="findAllInputParameters" type="findAll"/>
<xs:complexType name="findAll">
<xs:sequence/>
</xs:complexType>
<xs:element name="dsSelectInputParameters" type="dsSelect"/>
<xs:complexType name="dsSelect">
<xs:sequence/>
</xs:complexType>
</xs:schema>
DatabaseService.wsdl
<?xml version="1.0" encoding="UTF-8"?>
<definitions
>
<types>
<schema xmlns="http://www.w3.org/2001/XMLSchema">
<import namespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/Login"
schemaLocation="EmployeeRole_table.xsd"/>
</schema>
</types>
<message name="EmployeeRoleCollection_msg">
<part name="EmployeeRoleCollection" element="top:EmployeeRoleCollection"/>
</message>
<message name="dsSelect_inparameters">
<part name="dsSelect_inparameters" element="top:dsSelectInputParameters"/>
</message>
<message name="EmployeeRole_msg">
<part name="EmployeeRole" element="top:EmployeeRole"/>
</message>
<portType name="ds_ptt">
<operation name="dsSelect">
<input message="tns:dsSelect_inparameters"/>
<output message="tns:EmployeeRoleCollection_msg"/>
</operation>
<operation name="queryByExample">
<input message="tns:EmployeeRole_msg"/>
<output message="tns:EmployeeRoleCollection_msg"/>
</operation>
</portType>
<binding name="ds_binding" type="tns:ds_ptt">
</binding>
<service name="ds">
<port name="ds_pt" binding="tns:ds_binding">
<jca:address location="eis/DB/BPELSamples"
/>
</port>
</service>
</definitions>
<b>Login.bpel</b>
<process name="Login" targetNamespace="http://xmlns.oracle.com/Login" xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/" xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20" xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/" xmlns:ns1="http://xmlns.oracle.com/pcbpel/adapter/db/ds/" xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:ns2="http://xmlns.oracle.com/pcbpel/adapter/db/top/Login" xmlns:client="http://xmlns.oracle.com/Login" xmlns:bpelx="http://schemas.oracle.com/bpel/extension" xmlns:ora="http://schemas.oracle.com/xpath/extension" xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc">
<partnerLinks>
<partnerLink name="client" partnerLinkType="client:Login" myRole="LoginProvider"/>
<partnerLink name="PartnerLink_1" partnerRole="ds_role" partnerLinkType="ns1:ds_plt"/>
</partnerLinks>
<variables>
<variable name="inputVariable" messageType="client:LoginRequestMessage"/>
<variable name="outputVariable" messageType="client:LoginResponseMessage"/>
<variable name="Invoke_1_dsSelect_InputVariable" messageType="ns1:EmployeeRole_msg"/>
<variable name="Invoke_1_dsSelect_OutputVariable" messageType="ns1:EmployeeRoleCollection_msg"/>
</variables>
<sequence name="main">
<receive name="receiveInput" partnerLink="client" portType="client:Login" operation="process" variable="inputVariable" createInstance="yes"/>
<assign name="Assign_1">
<copy>
<from variable="inputVariable" part="payload"/>
<to variable="Invoke_1_dsSelect_InputVariable" query="/ns2:EmployeeRole"/>
</copy>
</assign>
<invoke name="Invoke_1" partnerLink="PartnerLink_1" portType="ns1:ds_ptt" operation="dsSelect" inputVariable="Invoke_1_dsSelect_InputVariable" outputVariable="Invoke_1_dsSelect_OutputVariable"/>
<assign name="Assign_2">
<copy>
<from variable="Invoke_1_dsSelect_OutputVariable" part="EmployeeRoleCollection"/>
<to variable="outputVariable" part="payload"/>
</copy>
</assign>
<reply name="replyOutput" partnerLink="client" portType="client:Login" operation="process" variable="outputVariable"/>
</sequence>
</process>
Thanks,
Niv

Help! SOS....
Niv

Problem with Merge in database adapter

Hi Everyone,
For my Bpel process I have the following:
1) File adapter
2) Receive activity
3) Transforms activity
4) Invoke activity
5) Database adapter
My Bpel process is working fine, no errors. It pick up the file ---> sends it to receive --> then transform the records --> then Invoke sends it to DB adapter to presist the records.
For the setting of my DB adapter, to preform an operation on my table I chose Insert or update option.
when running the same process multipul times my records in the table get duplicated. I dont understand why that is happening since I chose insert or update option in the DB adapter ??
How can I make my DB adapter overwrites the same records in the database if my file adapter picked up the same file that contains the same records ??
Thanks in Advanced,
AJ

Are you talking of a one off exercise, or is this something you want to happen every time a file is received.
Yes, what I mean if you want this as an on going step in your process then you would need to modify your existing process to add a new DB partnerlink that deletes the records. You could create a stored procedure that does both insert and delete if you only want one DB call though. This would replace your existing Db partner link that does the inserts.
cheers
James

Database Adapter ORA-00923 problem...

I made "Execute custom SQL" in database adapter and this shows this error "ORA-00923: FROM keyword not found where expected", the Query works perfect in SQLDeveloper..
This is the Query:
SELECT
id_tarea,
SUBSTR(MAX(REPLACE(
SYS_CONNECT_BY_PATH(mail_responsable, '/')
,'/',', ')),2) Concatenated_String
FROM (
select a.id_cambio, a.id_tarea, a.mail_responsable,
row_number() OVER (Partition by id_cambio, id_tarea order by id_cambio) ROW#
FROM tareas_cambio A where a.id_cambio = 2 and a.id_tarea in (1, 2, 8))
START WITH ROW#=1
CONNECT BY PRIOR id_cambio=id_cambio AND PRIOR row# = row# -1
GROUP BY id_tarea;
Thanks for your help..

I found the solotion!!
Create the view with a sqript and from sqlplus and NOT from Toad.
or
Goto <Project Folder> -> <database> -> <apps> -> <xxxx.view> ,go to the end, and remove the NUL value.
Thanks for the help any way!
Rafikki

BPEL process initiated by a database adapter causing problems in HA environ

We are having a High Availability architecture configuration(active - active) for the BPEL System in our production environment.
The BPEL servers are clustered in the middle tier of the architecture and RAC is used in the database tier of the architecture.
We have a BPEL process which is initiated by a database adapter.
This BPEL process polls a source database, reads the data, writes it into a JMS Topic and marks flag as read back to the table.
A Message Driven Bean(MDB) listens to the JMS Topic, and writes the data in the destination database.
We have the polling process and the MDB deployed to both the nodes of the BPEL server.
We have noticed that some records are getting processed by both the nodes.
This is resulting in duplicate records at the destination tables.
Kindly advise how we can resolve this issue.

The BPEL servers are configured with active - active topology and RAC is used in the database tier of the architecture.
BPEL Servers is not clustered. Load Balancer is used in front of the two nodes of the BPEL servers.

Problem inserting a clob using bpel and database adapter

We are having issues inserting a clob field into the database when the data is over 4000 characters. Anything under 4000 characters works fine.
The error we are seeing is "Error while converting to a Java struct object. Unable to convert XSD element P_RESPONSE_ARRAY_ITEM whole user defined type is QC_CRCBT_PKG_RESPONSE_TYPE. Cause: java.lang.ClassCastException: oracle.sql.CLOB; nested exception is: ORABPEL-11802"
We are using BPEL 10.1.3.3 and a database adapter. THE PL/SQL parameter decomposes to a clob type. Again, anything under 4000 characters works fine.
Any ideas?

This is likely due to Bug-6629539, which has just been identified and fixed in 11. You can request a one-off patch for this bug (i.e. a BLR off of the 10.1.3.3.0 release label).

OVD: Database Adapter Query Problem

Hey Everyone,
I am using a database adapter in OVD 10g and am not able to get the proper results from a query. We have created a view in the database and have pointed OVD at the view. We then set up 7 objectclasses using the DB Attribute Mapping Wizard. When doing a query on the base of the DB adapters we are not getting back all of the proper results one would expect. For instance if I query for objectclass=* I only get back 2 of the 7 objectclasses. Another example would be a query for mail=[email protected] will only return the attributes from the mailRecipient objectclass when normally in LDAP the entire record would be returned.
Does anyone have an idea as to what could be going on? Does anyone have additional resources (beyond the OVD manual) for creating a database adapter?
Thanks,
Stephen

Sorted this out:
Used custom URL and made sure that the OVD Manager IDE was not appending any additional information following the closing bracket of the URL.
The full successful URL was as follows with no values in any of the other fields:
jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=on)(ADDRESS = (PROTOCOL = TCP)(HOST = host1)(PORT = 1540))(ADDRESS = (PROTOCOL = TCP)(HOST = host2)(PORT = 1540))(CONNECT_DATA=(SERVICE_NAME=SNAME)))

Logical delete in database adapter

Hello
I was wondering if someone has solution the problem with polling database. You can specify the logical delete column and you can give values for READ, UNREAD and RESERVED states. The problem is that when for example ESB project polls some specific table and starts an instance for every new row with specified logical delete field with value UNREAD, when something unexpected happens and something goes wrong the database adapter updates the row with READ value. This is problematic if we have thousands of rows, and we would like to separate the errored rows from the successfully read rows. Is there anyway (easy) way to update those rows that went wrong to some other value than READ?
I don't know if anyone understood me, but just for clarification here's a example:
I have a ESB-project which poll specific database table and parses and XML from the data. After this the ESB-project sends the data to some Web Service. The database table has column CONDITION_CODE in which value 0 means unread and value 1 means read. Now if everything goes fine there is no problems. But if the Web Service is unavailable or the data is malformed, the database adapter still updates the CONDITION_CODE to 1! We have no ways (except to listen ESB_ERROR topic and implement some error handling there) to know what rows were successfully delivered and which were not...
Hope I was able to clarify the problem... And I hope someone could be able to provide me with answer.
Best Regards Tuomas

Did you use the RESERVED value property? How about the transaction mechanism? Do you have global transactions? I gues you would have to use them!

How to delete the content of a datatable by the "Database Adapter"

Hello,
i want to delete all entries in a table by a database adapter - like "DELETE FROM table" in SQL. (Oracle SOA Suite 11g SR1, with Oracle DB over JDBC))
When i create a new Database adapter i can select standard functions for "insert, select, delete". The function delete does have the disadvantage, that it needs a input message with the key values of the data entry which have to be deleted, which i don't have and don't want to get.
So i tried the "Pure SQL" mode for the adapter with the SQL string "DELETE FROM table" but this instruction is somehow not commited to the database.
My questions are:
- Is there any commit needed for the pure sql instructions? How is the syntax to write several SQL instructions for one Database Adapter?
- Does anyone have another solution to delete the entries?
Thanx in advance
Tobias

Hi Shishir,
it is a pretty simple example. I think the problem is that the Database Adapter is not commiting.
The BPEL is simple sending an empty message to the adapter which should trigger the SQL execution (See Code below)
The PURE SQL String i'm using is "DELETE FROM table"
Thanks Tobias
<?xml version = "1.0" encoding = "UTF-8" ?>

<process name="BPELProcess1"
targetNamespace="http://xmlns.oracle.com/App_DWH_Prototype/TestDELETE/BPELProcess1"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:client="http://xmlns.oracle.com/App_DWH_Prototype/TestDELETE/BPELProcess1"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:oraext="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
xmlns:xpath20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:ui="http://xmlns.oracle.com/soa/designer/"
xmlns:task="http://xmlns.oracle.com/bpel/workflow/task"
xmlns:taskservice="http://xmlns.oracle.com/bpel/workflow/taskService"
xmlns:wfcommon="http://xmlns.oracle.com/bpel/workflow/common"
xmlns:wf="http://schemas.oracle.com/bpel/extension/workflow"
xmlns:xdk="http://schemas.oracle.com/bpel/extension/xpath/function/xdk"
xmlns:dvm="http://www.oracle.com/XSL/Transform/java/oracle.tip.dvm.LookupValue"
xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
xmlns:bpelx="http://schemas.oracle.com/bpel/extension"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:ns1="http://xmlns.oracle.com/pcbpel/adapter/db/App_DWH_Prototype/TestDELETE/TestDelete%2F"
xmlns:ns2="http://xmlns.oracle.com/pcbpel/adapter/db/top/TestDelete">

<partnerLinks>

<partnerLink name="bpelprocess1_client" partnerLinkType="client:BPELProcess1" myRole="BPELProcess1Provider" partnerRole="BPELProcess1Requester"/>
<partnerLink name="TestDelete" partnerRole="TestDelete_role"
partnerLinkType="ns1:TestDelete_plt"/>
</partnerLinks>

<variables>

<variable name="inputVariable" messageType="client:BPELProcess1RequestMessage"/>

<variable name="outputVariable" messageType="client:BPELProcess1ResponseMessage"/>
<variable name="Invoke_1_delete_InputVariable"
messageType="ns1:TActIngredientCollection_msg"/>
</variables>

<sequence name="main">

<receive name="receiveInput" partnerLink="bpelprocess1_client" portType="client:BPELProcess1" operation="process" variable="inputVariable" createInstance="yes"/>

<assign name="Assign_1">
<copy>
<from expression="''"/>
<to variable="Invoke_1_delete_InputVariable"
part="TActIngredientCollection"
query="/ns2:TActIngredientCollection/ns2:TActIngredient/ns2:plotNo"/>
</copy>
<copy>
<from variable="inputVariable" part="payload"
query="/client:process/client:input"/>
<to variable="outputVariable" part="payload"
query="/client:processResponse/client:result"/>
</copy>
</assign>
<invoke name="Invoke_1" inputVariable="Invoke_1_delete_InputVariable"
partnerLink="TestDelete" portType="ns1:TestDelete_ptt"
operation="delete"/>
<invoke name="callbackClient" partnerLink="bpelprocess1_client" portType="client:BPELProcess1Callback" operation="processResponse" inputVariable="outputVariable"/>
</sequence>
</process>

How to use Database adapter as inbound adapter without having polling strategies?

Hi All,
I have a requirement wherein I have to use Database adapter to retrieve the data for every half an hour from one(X app) database and update that data into another application(Y app) .That database adapter will be along with BPEL process.My Flow would be like this:
Database Adapter( In 'exposed services' section) ----->   BPEL (in 'Components') -----> Y app service( in 'External References' section)
My questions for each step are below
     1) I have to retrieve the data from database(x app database) for every half an hour.So I have to schedule my whole process such that it should execute for every half an hour.
Means I have to get whatever the data is updated in the last half an hour in that database.
      The database adapter should be inbound in SOA composite editor(in 'Exposed services' section).
But in order to have inbound adapter,we have select the 'Poll for New or Changed Records in a Table' option in turn we have to select one of polling operations below:
         Delete the Row(s) that were Read
Update a Field in the [Table_Name] Table (Logical Delete)
Update a Sequencing Table
Update an External Sequencing Table on a Different Database
Control Table Strategy
But the problem is I don't have any control on the database(X app database) ,So (I can't update any data on that table,because that table may not have a field or table to update the processed rows)I can't choose any of the above operations.
How can I achieve what I want that is to retrieve the data and schedule the process?
Thanks in advance.

Hi Heckler,
Thank you very much for your answer that I can proceed further somehow.
I still need to have some clarifications.
In order to have a process which retrieves the data (Inbound operation) and updates the data into other application, the data(from X app) should be the request(through DB adapter) of the BPEL process.
X app does not do anything to send.We have(the BPEL process) to receive the data (or) no event is triggered.
The flow :
Database Adapter( In 'exposed services' section to retrieve data) ----->   BPEL (in 'Components') -----> Y app service( in 'External References' section)
How can we ensure the data will be request to BPEL process(means it will be in 'exposed services' section in SOA composite editor) for every half an hour if we use pick activity and database adapter as first activity?
When we use ''Poll for New or Changed Records in a Table' ,then only adapter becomes inbound and comes into the 'exposed services' section.I can't use it as I don't have any control on the source table.
I have this confusion before starting the process.Please help me to clear out the doubts.
And this whole process should be executed automaticallly for every half an hour(means it creates instance for every half an hour) Once we build the BPEL process.
How to schedule it?
And where do I need to create control table ?You mean I have to use some different database where in I have to create the table?

Error while invoking custom API using Database Adapter

Hi,
I've a requirement where in I need to fetch the data returned by a recordtype of a custom API. I've implemented this by invoking the custom API using Database Adapter. I'm facing a problem while performing this.
The custom API holds the signature as:
PROCEDURE EMP_DET
Argument Name Type      In/Out Default?
P_DEPTNO NUMBER IN
L_LINE_TBL TABLE OF RECORD OUT
I've a schema with which it needs to be validated. It looks like:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:po="http://www.mycompany.com/ns/sales" targetNamespace="http://www.mycompany.com/ns/sales" elementFormDefault="qualified">
<element name="EmployeeDetails">
<complexType>
<sequence>
<element name="EmpNo" type="integer"/>                    <element name="EName" type="string"/>                    <element name="Job" type="string"/>                    <element name="Mgr" type="integer"/>                    <element name="HireDate" type="date"/>                    <element name="Sal" type="decimal"/>                    <element name="Comm" type="decimal"/>               </sequence>
</complexType>
</element>
</schema>
I did a transformation to the above stated Emp.xsd with the xsd created for my custom API by the BPEL process. I could create the process and deploy successfully, but while invoking I get the following error. (I'm using BPM 10.1.3.1 with JDev 10.1.3.1)
<remoteFault xmlns="http://schemas.oracle.com/bpel/extension"><part name="code"><code>6502</code>
</part><part name="summary"><summary>file:/D:/OraBPEL/bpel/domains/default/tmp/.bpel_my_poc_1.0_16c5d0f7b937c780d27d8975726a15cb.tmp/emp_details.wsdl [ emp_details_ptt::emp_details(InputParameters,OutputParameters) ] - WSIF JCA Execute of operation 'emp_details' failed due to: Error while trying to prepare and execute an API.
An error occurred while preparing and executing the SCOTT.BPEL_EMP_DETAILS.EMP_PKG$EMP_DET API. Cause: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
[Caused by: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
; nested exception is:
     ORABPEL-11811
Error while trying to prepare and execute an API.
An error occurred while preparing and executing the SCOTT.BPEL_EMP_DETAILS.EMP_PKG$EMP_DET API. Cause: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
[Caused by: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
Check to ensure that the API is defined in the database and that the parameters match the signature of the API. Contact oracle support if error is not fixable.
</summary>
</part><part name="detail"><detail>
Internal Exception: java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at "SCOTT.BPEL_EMP_DETAILS", line 1
ORA-06512: at line 1
Error Code: 6502</detail>
</part></remoteFault>
Can someone let me know as to why I'm getting this error? Also lemme know if such an approach is valid to do, if not please suggest me alternate methods to do this.
Thanks in advance,
Gayathri

The 'numeric or value error' is one we have seen many times. The problem has been identified and fixed. Refer to this thread for more information.
Issue with DB Adapter - ORABPEL-11811

Database Adapter Problem

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