Exposing Database adapter as Webservice : Urgent

Hi
Is it possible to expose the Database Adapter as a web service using the polling strategies??
Thanks
Brett
Edited by: user11688998 on Oct 18, 2009 2:50 AM

yes u can create a BPEL Process in which use a database adapter to poll on the particular table and then invoke some process as pe your requirement
Every BPEL Process is deployes on the app server as a webservice

Similar Messages

Exposing DB adapter as webservice

Hi ,
Is it possible to expose DB adapter as webservice?
Thanks,
Ramesh

Yes it is possible. Create a new project in Jdeveloper. Create new dbadatpter. Then create a deployment profile and deploy it to the server.
Alternatively, if the dbadapter is deployed with the BPEL process, go to the BPEL Console and click the process. Click on the Descriptors tab and you can see a link to the wsdl of the dbadapter there.
Deepak

Database Adapter: exposing multiple operations using one PartnerLink

Hi,
I use the Database Adapter for accessing stored procedures in a package.
Using the wizard, I am able to specify a PartnerLink for one procedure in my package. However, the same package (my 'business service') contains multiple procedures I want to expose and call, preferably via the same PartnerLink.
Is this possible?
If so, what is the best strategy, e.g. use the wizard multiple times and merge the resulting wsdl files?
Thanks, Sjoerd

How do you do that?
I specifically want to Poll a table, with the wizard it doesn't give you any options to edit the query, I suppose you go into the generated files and edit the query that way?
As it happens I have actually worked around my specific issue using XSLT functions, I was actaully trying to convert DB2 JD Edwards dates using this table lookup) but once I understood how the date format is stored it was simple enough to do in XSLT.
However I'm still interested to know how this is done as I may have another requirement that requires SQL joining to the same table twice.
Regards
Stuart

Urgent: "where" clause for polling database Adapter

Hi
I am creating a database Polling (logical delete OPEN to CLOSED) adapter that polls a table for records which have a "SCHEDULED" date field.
The Polling Adapter should pick up those records where the status is OPEN and SCHEDULED<=SYSDATE.
DB Adapter wizard does not allows this where clause(SCHEDULED<=SYSDATE) to be set; so i tried modifying the Toplink SQL with custom SQL. But it does not works. Please suggest a workaround.
Please help.
Thanks
Debashis

Hi
Please refer ..\SOA_HOME\bpel\samples\tutorials\122.DBAdapter\advanced\polling\PollingPureSQLOtherTableInsert Readme.txt and Note 873991.1 How To Use Custom SQL To Poll Database Tables Via Database Adapter LogicalDeletePollingStrategy.
This works.
thanks
--debashis

Use of current time for polling Database Adapter query

I am writing a simple BPEL process with a Polling Database Adapter and a Recieve. The idea is that we are polling an XE database for any entries in a TRIP table which have an expiration date/time field that has passed.
The Adapter was build using JDeveloper 10.1.3.2 (with Oracle Application Server patched to 10.1.3.3.0) as a "Poll for New Changed Records in a Table" Operation type with a STATUS field (0 for live, 1 for expired) as the Logical Delete Field.
I was unable to find a way to generate a SELECT query expression with the wizard that would allow me to use current/system time as an attribute, so I finished the wizard and edited the Toplink Descriptor to use a custom SQL expression for the query. This resulted in the following code in the toplink_mappings.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<toplink:object-persistence version="Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)"
xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>ExpiredTripPoller</opm:name>
<opm:class-mapping-descriptors>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>ExpiredTripPoller.Trip</opm:class>
<opm:alias>Trip</opm:alias>
<opm:primary-key>
<opm:field table="TRIP" name="ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy">
<opm:queries>
<opm:query name="ExpiredTripPoller" xsi:type="toplink:read-all-query">
<toplink:timeout>0</toplink:timeout>
<toplink:call xsi:type="toplink:sql-call">
<toplink:sql>SELECT ID, LPN, START_TIME, EXPIRY_TIME, STATUS FROM TRIP WHERE ((STATUS = '0') AND (EXPIRY_TIME < SYSDATE)) ORDER BY EXPIRY_TIME ASC</toplink:sql>
</toplink:call>
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:cache-usage>primary-key</toplink:cache-usage>
<toplink:lock-mode>none</toplink:lock-mode>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</opm:query>
<opm:query name="findAllTrip" xsi:type="toplink:read-all-query">
<toplink:timeout>0</toplink:timeout>
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:cache-usage>primary-key</toplink:cache-usage>
<toplink:lock-mode>none</toplink:lock-mode>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</opm:query>
</opm:queries>
<toplink:does-exist-query xsi:type="toplink:does-exist-query">
<toplink:existence-check>check-database</toplink:existence-check>
</toplink:does-exist-query>
<toplink:read-all-query xsi:type="toplink:read-all-query">
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</toplink:read-all-query>
</opm:querying>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:field table="TRIP" name="ID" xsi:type="opm:column"/>
<opm:attribute-classification>java.math.BigDecimal</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>lpn</opm:attribute-name>
<opm:field table="TRIP" name="LPN" xsi:type="opm:column"/>
<opm:attribute-classification>java.lang.String</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>startTime</opm:attribute-name>
<opm:field table="TRIP" name="START_TIME" xsi:type="opm:column"/>
<opm:attribute-classification>java.sql.Timestamp</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>expiryTime</opm:attribute-name>
<opm:field table="TRIP" name="EXPIRY_TIME" xsi:type="opm:column"/>
<opm:attribute-classification>java.sql.Timestamp</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>status</opm:attribute-name>
<opm:field table="TRIP" name="STATUS" xsi:type="opm:column"/>
<opm:attribute-classification>java.math.BigDecimal</opm:attribute-classification>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
<toplink:always-refresh>true</toplink:always-refresh>
</toplink:caching>
<toplink:remote-caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
</toplink:remote-caching>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="TRIP"/>
</toplink:tables>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
</toplink:object-persistence>
To test I used the above custom SQL at the command line and it filtered the records by EXPIRY_TIME as expected.
When deployed, the polling process updates the STATUS file dof table entries, but all entries with status 0 regardless of EXPIRY_DATE. My modification appears to be being ignored. I was unsure as to whether the QUERY was being determined in some other way so I modified the descriptor (with the toplink expression editor) to compare against a literal time value, producing the following modified toplink_mappings.xml:
<?xml version="1.0" encoding="UTF-8"?>
<toplink:object-persistence version="Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)"
xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>ExpiredTripPoller</opm:name>
<opm:class-mapping-descriptors>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>ExpiredTripPoller.Trip</opm:class>
<opm:alias>Trip</opm:alias>
<opm:primary-key>
<opm:field table="TRIP" name="ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy">
<opm:queries>
<opm:query name="ExpiredTripPoller" xsi:type="toplink:read-all-query">
<opm:criteria operator="lessThan" xsi:type="toplink:relation-expression">
<toplink:left name="expiryTime" xsi:type="toplink:query-key-expression">
<toplink:base xsi:type="toplink:base-expression"/>
</toplink:left>
<toplink:right xsi:type="toplink:constant-expression">
<toplink:value xsi:type="xsd:date">2007-07-30</toplink:value>
</toplink:right>
</opm:criteria>
<toplink:timeout>0</toplink:timeout>
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:cache-usage>primary-key</toplink:cache-usage>
<toplink:lock-mode>none</toplink:lock-mode>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</opm:query>
<opm:query name="findAllTrip" xsi:type="toplink:read-all-query">
<toplink:timeout>0</toplink:timeout>
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:cache-usage>primary-key</toplink:cache-usage>
<toplink:lock-mode>none</toplink:lock-mode>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</opm:query>
</opm:queries>
<toplink:does-exist-query xsi:type="toplink:does-exist-query">
<toplink:existence-check>check-database</toplink:existence-check>
</toplink:does-exist-query>
<toplink:read-all-query xsi:type="toplink:read-all-query">
<toplink:reference-class>ExpiredTripPoller.Trip</toplink:reference-class>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</toplink:read-all-query>
</opm:querying>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:field table="TRIP" name="ID" xsi:type="opm:column"/>
<opm:attribute-classification>java.math.BigDecimal</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>lpn</opm:attribute-name>
<opm:field table="TRIP" name="LPN" xsi:type="opm:column"/>
<opm:attribute-classification>java.lang.String</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>startTime</opm:attribute-name>
<opm:field table="TRIP" name="START_TIME" xsi:type="opm:column"/>
<opm:attribute-classification>java.sql.Timestamp</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>expiryTime</opm:attribute-name>
<opm:field table="TRIP" name="EXPIRY_TIME" xsi:type="opm:column"/>
<opm:attribute-classification>java.sql.Timestamp</opm:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>status</opm:attribute-name>
<opm:field table="TRIP" name="STATUS" xsi:type="opm:column"/>
<opm:attribute-classification>java.math.BigDecimal</opm:attribute-classification>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
<toplink:always-refresh>true</toplink:always-refresh>
</toplink:caching>
<toplink:remote-caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
</toplink:remote-caching>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="TRIP"/>
</toplink:tables>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
</toplink:object-persistence>
On deployment, this version of the BPEL process behaved as expected - only modifying the records with EXPIRY_TIME less thatn the literal time specified. (Also, I can't really pass in the time as a parameter as this is a polling model).
Can anyone shed any light on what is happening or suggest how I might go about polling in the desired way?
Cheers

Please take a look at this article which states SYSDATE is not supported in a
where clause.
http://www.oracle.com/technology/pub/articles/bpel_cookbook/qualcomm-bpel.html
Excerpt from the article:
Here are three important things you should do in implementing the above design:
Have the status of the record being processed stored in the database. The status includes the process state, next process attempt time, and processing attempt count.
Create an updatable view that exposes only records that are ready to be processed. A view is needed because the database adapter cannot handle a where clause that compares against SYSDATE.
Design logic that determines if a process instance that has faulted should be retried and when the retry should occur. This information will be updated in the database by use of a stored procedure. This can also be done with an update partner link and additional logic in BPEL.
mahalo,
a iii

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?

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

Sql queries in database adapter

Hi,
I want to write, say, 2 select statements in the database adapter. How can I accomadate using "execute pure sql"?
Regards,
Aasta

maybe these links will help you :
Urgent : Fault Policies in 11g
http://download.oracle.com/docs/cd/E15523_01/integration.1111/e10226/soacompapp_mang.htm
http://www.it-eye.nl/weblog/2009/12/10/using-fault-management-framework-in-oracle-11g/
http://download.oracle.com/docs/cd/E12839_01/integration.1111/e10224/med_faulthandling.htm#SOASE274

Dynamically Pass sql query in Database adapter

hi',
How can we dynamically pass sql query in Database adapter, is there any way, I am using SOA 11G.
Thanks
Yatan

Hi,
Tried that too. No luck. Gives me this.
The selected operation process could not be invoked.
An exception occured while invoking the webservice operation. Please see logs for more details.
oracle.sysman.emSDK.webservices.wsdlapi.SoapTestException: Exception occured when binding was invoked.
Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'selectUsingIn' failed due to: Pure SQL Exception.
Pure SQL Execute of select interface_id, property_name, property_value from ( (?) ) failed.
Caused by java.sql.SQLSyntaxErrorException: ORA-00903: invalid table name
The invoked JCA adapter raised a resource exception.
Please examine the above error message carefully to determine a resolution.
Regards,
Neeraj Sehgal

Error with Database adapter

Hi All,
I am using a database adapter to write values to database.The build was successful.However when i test it in the console with the sameple input I am getting the below error.
ERROR:
java.lang.Exception: oracle.sysman.emSDK.webservices.wsdlapi.SoapTestException: Client received SOAP Fault from server : Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'insert' failed due to: JCA Binding Component connection issue. JCA Binding Component is unable to create an outbound JCA (CCI) connection. NGW_PP_DBAdapter:Write_DB_Adapter [ Write_DB_Adapter_ptt::insert(StgProductportfolioCollection) ] : The JCA Binding Component was unable to establish an outbound JCA CCI connection due to the following issue: BINDING.JCA-12510 JCA Resource Adapter location error. Unable to locate the JCA Resource Adapter via .jca binding file element <connection-factory/> The JCA Binding Component is unable to startup the Resource Adapter specified in the <connection-factory/> element: location='eis/DB/DB_Conn'. The reason for this is most likely that either 1) the Resource Adapters RAR file has not been deployed successfully to the WebLogic Application server or 2) the '<jndi-name>' element in weblogic-ra.xml has not been set to eis/DB/DB_Conn. In the last case you will have to add a new WebLogic JCA connection factory (deploy a RAR). Please correct this and then restart the Application Server Please make sure that the JCA connection factory and any dependent connection factories have been configured with a sufficient limit for max connections. Please also make sure that the physical connection to the backend EIS is available and the backend itself is accepting connections. ". The invoked JCA adapter raised a resource exception.
Can anyone help me out to fix this error.
Thanks in advance.

From the error it is clear that your composite is not able to find the DB jndi.The JCA Binding Component is unable to startup the Resource Adapter specified in the <connection-factory/> element: location='eis/DB/DB_Conn'.
Please follow these steps:
1) Have u created DB jndi eis/DB/DB_Conn that you are using on weblogic console.
2) After creating did you redeploy the DB adapter on weblogic console.
3) If you have done above 2 steps cross check your jndi exists in ur DB adapter or not on weblogic console.
That could only be the possible reasons for the error you are getting.
Hope this helps.
Regards,
Karan
Oracle Fusion Middleware Blog

Database adapter and commit

I am trying to use BPEL process manager to read many items from a database table, transform them and then write the transformed records to another table. I have found the database adapter demo very useful. However, I would like to commit the transformed data only when all the data has been succesfully transformed. Can anyone think of a way of doing this? I am new to BPEL and JCA, perhaps the wsdl for the database adapter could be changed to expose a commit method?
Thanks in advance for any advice.
Neil.

Hi Neil,
at the moment it is not possible to have the entire bpel process from db adapter receive to db adapter invoke inside a single jta/global transaction context. We are working on some ideas for next the release.
The best thing for now is to add exception handling to your business process and apply some compensation logic for the individual records which fail. I.e. if using the LogicalDeletePollingStrategy you could set the 'deleted' flag back to 'errored' for rows which are found to be invalid in the transform step and have a separate business process to deal with these.
You could also try a large maxRaiseSize setting. That way if you read 100 rows they will be raised as a single xml document. If the transform fails then no rows will be written to the target database. However the commit will still occur on the source database.
Finally, you could use a non-destructive polling strategy like the SequencingPollingStrategy or LogicalDeletePollingStrategy and a large maxRaiseSize. Your business process could look like this:
receive (non-destructive destroy)
transform
merge all rows - target db
delete all rows -source db
If the 'merge' operation is jta enabled then it will be rolled back if either the transform or the delete fails.
This above idea is like a two stage polling strategy. First the rows are marked as being processed by the receive, but only when they arrive at the target db are they marked a final time as being completed or deleted completely.
Let us know if you need help implementing these ideas. To jta enable the merge see the recent thread 'oc4j-ra and data-sources.xml'.
Thanks
Steve

Oracle database Adapter polling in OSB Cluster

Hi,
I have OSB 11g with two nodes. I have a database adapter that polls a table after every 30 seconds and perform logical delete on the rows read. I came across interesting situation. When one node is up and PollingInterval=30, it works okay and polling is done right after 30 seconds but when both nodes are up the PollingInterval property doesnt work as expected.
First node will poll after 24 seconds and then second node will again poll after 6 seconds (node1+node2=30 seconds in total).
and After i restart the servers the first node is polling at 18 sec and second node is polling at 12 sec (node1 +node2=30 sec), so different polling intervals.
How does it determines the first server should poll at 24 or 18 sec and second node should poll at 6 or 12 sec?
I would like to know is there any property or configuration required to poll the table for each node for every 15 seconds (node1(15sec)+node2(15sec)=30 sec)?
Please help me, It is very urgent?
Thanks
Rajesh.

Hi,
If any one has the same issue, please let me know.
Also if you know the solution, can you please update here, it's very helpful for me.
Thanks,
Rejesh.

Database Adapter Poll doubt

My requirement is, when ever a new recored inserted to CREDITCARDINFOPARENT table need to insert the same record to CREDITCARDINFORESULT;
desc CREDITCARDINFOPARENT;
Name Null? Type
SNO NUMBER
SSN NOT NULL VARCHAR2(15)
FIRST_NAME VARCHAR2(30)
LAST_NAME VARCHAR2(30)
CCNUMBER NOT NULL VARCHAR2(20)
CREDITRATING NUMBER
STATUS NOT NULL VARCHAR2(20)
CCNumber is my primary key
desc CREDITCARDINFORESULT;
Name Null? Type
NO NUMBER
SN NOT NULL VARCHAR2(15)
FIRSTNAME VARCHAR2(30)
LASTNAME VARCHAR2(30)
CCNUMBER VARCHAR2(20)
CRATING NUMBER
CCSTATUS NOT NULL VARCHAR2(20)
CCNUMBER is Foreign Key.
I tried Poll DB adapter example in the following way
Created a project with "Composite with Mediator"
under exposed services I dragged DB Adapter
Service Name-> Example Service
Step 4 of 13 -> selected Poll or Changed Records in a table
step 5 of 13 -> imported 2 tables (CREDITCARDINFOPARENT, CREDITCARDINFORESULT)
step 6 of 13 -> displayed the Relationships
step 8 of 13 -> After Read -> selected Update a Sequencing Table
step 9 of 13 -> Sequencing Table: CREDITCARDINFORESULT
     Sequence Name Field: CCNUMBER
     Sequence Value Field: STATUS
     Sequence ID Field: CCNUMBER
step 10 of 13 -> Polling Options: SQL
          Pre Polling SQL:
SELECT STATUS FROM CREDITCARDINFORESULT WHERE (CCNUMBER = 'CREDITCARDINFOPARENT')
Polling SQL:
SELECT SNO, SSN, FIRST_NAME, LAST_NAME, CCNUMBER, CREDITRATING, STATUS FROM CREDITCARDINFOPARENT WHERE ((STATUS = 'VALID') AND (CCNUMBER > #STATUS)) ORDER BY CCNUMBER ASC
After Read SQL:
UPDATE CREDITCARDINFORESULT SET STATUS = #STATUS WHERE (CCNUMBER = 'CREDITCARDINFOPARENT')
step 11 of 13 ->Define Selection Criteria:
          Parameters:ccno
          SQL: SELECT SNO, SSN, FIRST_NAME, LAST_NAME, CCNUMBER, CREDITRATING, STATUS FROM CREDITCARDINFOPARENT WHERE ((STATUS = 'VALID') AND (CCNUMBER > #STATUS)) ORDER BY CCNUMBER ASC
Under External Services : I dragged DB Adapter and i selected Perform an Operation on a table as Insert Only. and I imported CREDITCARDINFORESULT
I deployed the the Project. Project depolyed successfully;
under EnterpriseManager command prompt I got
<Jun 29, 2010 2:25:46 PM IST> <Warning> <oracle.soa.adapter> <BEA-000000> <JCABinding=> ExampleProject JNDI lookup of 'eis/DB/soademodatabase' f
ailed due to: Unable to resolve 'eis.DB.soademodatabase'. Resolved 'eis.DB'>
<Jun 29, 2010 2:25:46 PM IST> <Error> <oracle.soa.adapter> <BEA-000000> <JCABinding=> ExampleProject Error while performing endpoint Activation:
BINDING.JCA-12561
JCA Resource Adapter location error (WebLogic).
Unable to locate the JCA Resource Adapter via .jca binding file element <connection-factory/>
The JCA Binding Component is unable to startup the Resource Adapter specified in the <connection-factory/> element: location='eis/DB/soademodata
base'.
The reason for this is most likely that either
1) the Resource Adapters RAR file has not been deployed successfully to the WebLogic J2EE Application server or
2) the JNDI <jndi-name> setting in the WebLogic JCA deployment descriptor has not been set to eis/DB/soademodatabase. In the last case you might
have to add a new 'connector-factory' entry (connection) to the deployment descriptor.
Please correct this and then restart the WebLogic Application Server
>
I confugired the Connection factory properly; I checked at DB Adapter -> Configuration -> Outbound Connection Pools -> xADataSourceName -     jdbc/soadeoDatabase
when I checked at JNDI tree I dont have any value under it.
in Firefox EM, when I clicked on Example Project Test button is disabled. and I inserted one record to CREDITCARDINFOPARENT; but CREDITCARDINFORESULT table is not updated.
can any body help me in this?
Please let me know whether I follwed correct procedure or not?
If I am wrong, please provide me the correct steps.
Thanks in Advance.

This error is usually raised if there is no outbound pool connections with the "eis/db/soademodata" name in the database adapter.
First create a data source to the database in the JDBC Resources.
Next in Weblogic server console --> Deployments --> DBAdapter --> Configurations --> Outbound Pool Connections --> create a new outbound pool connection with the name "eis/db/soademodata".
Now update the "xADataSourceName" property of this connection pool with the JNDI name of the datasource created in the first step.
Regards,
KSN Pavan
Edited by: KSN Pavan on Jun 30, 2010 2:51 AM

Polling table with Database Adapter

Hi All,
I have created a Database Adapter to poll the table for the new record or modified.
I have added a receive activity to that Adapter and deployed.
However the instance is not completing and its in always running state and waiting at receive activity.
Can you please help me out
Thanks

hello,
i have to do database polling..this is wat i have done.but instance is not getting created in BPEL..
i have created a sequence in databse.
i have created a source table in database which has three colums id,name,sequence.(generated by doin seq.nextval)
i have created a table as seqhelper table which has two fields table_name and seqid.
now i hav dragged a db adapter.I hav chosen poll,update seq table..and given my seq table name,seqname filed as table_name,seqvalue field as seqid.and sequence fiels ad sequence column of source table ...and done polling frequency as 5 seconds.
now created a bpel process,chosen interface as based on wsdl and selected db adapters wsdl file and linked to bpel after removing the default exposed service of bpel..so bpel as one receive activity joined to db adapter...
WHEN<
i am inserting any new records to source table....instance is not getting created...please help..

Database Adapter - Dynamic number of columns

I have the following requirement
There is a Header variable which is populated with values like BASIC, STANDARD and ALL
Based on the header variable - the query in database adapter needs to change
Like for BASIC
select column1, column2 from emp;
For STANDARD
select column1, column2, Column3 from emp;
For ALL
select * from emp;
Is it possible to model this in the database adapter? The columns to be retrieved is to be decided at run time.

hm, i don't think so (not sure)
based on the column you select the adapter will generate an interface for you (xsd/wsdl), this one can't be dynamic.
you could always return all the fields (select *) and then decide in your bpel itself what data you want to expose
Edited by: Eric Elzinga (IT-Eye) on Jan 14, 2010 10:44 PM

Exposing Database adapter as Webservice : Urgent

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