Jdev database adapter config wizard

hi,
i'm using JDeveloper 10.1.2 and mySQL Server 4.1
i realized that i have to use JDeveloper to be able to set up DBAdapters for my BPEL process ..
anyway, i created a new PartnerLink, i click on the Define Adapter Service icon, then i get the ADAPTER CONFIGURATION WIZARD.
from there i get as far as where i have to Import Tables.
i can find "[email protected]" but when i click OK i get
"The following error has occured:
ROOT@LOCALHOST
Please consult the Database Adapter documentation for detailed instructions on how to fix this problem."
anybody know why this is happening?? and how i can solve this?
-T

Similar Messages

Database Adapter Configuration Wizard "File already exists" error

I'm uding JDeveloper 10.1.3.1 on an XP machine running Java 1.5.0_06 and having trouble editing SOAOrderBooking.bpel as part of the tutorial.
The tutorial calls for me to drag a new Database Adapter onto the diagram, select the "soademo_ssn" database and, on page 3 of the wizard select "Perform an operation on a table" and have only "Select" checked.
When I click "Perform an operation on a table", the 5 tickboxes enable and are checked but the mouse pointer remains as an hourglass. If I press "Next" without doing anything else, the Wizard title changes to "Select Table" but never draws its controls, aside from the "Back" etc buttons along the bottom and the decorative graphic to the left. If I do try unchecking boxes to have only "Select" selected, every check box state change generates the error "File already exists" and the path of the .mwp file whose name I specified earlier. The file does exist, but it didn't before I entered the wizard.
I've tried with three different filenames, and with two different database connections- both of which check out fine when I do "Test connection" in their property pages from the Connection Navigator.
If I delete the file after each check state change, I can stop the errors appearing after I untick each checkbox, but the wizard still hangs on pressing "Next" whether the file is there or not.
Does anyone have any suggestions?

I am facing the same issues.
I want to pick the new files and retain the files after polling.
Any idea on this would help me to solve this issue.
Thanks in advance.

Jdev Database Adapter - polling updated rows

Hello, I have a question reguarding the polling strategy available in the database adapter.
I set it up and it works great with new inserted rows in the table.
However, it doesn´t capture the updated rows!
For instance, i have the following table:
ID - NAME - AGE
1 -John- 21
2 -Mary- 25
When I insert a new row, it is captured by comparing the last captured ID in the sequencing file.
ID - NAME - AGE
1 -John- 21
2 -Mary- 25
3 -Cindy- 20 <--------- New row
But when i UPDATE an already existing row, it doesnt load the changed row!
ID - NAME - AGE
1 -John- 26 <----------- Age changed, but polling doesnt recognize it!
2 -Mary- 25
3 -Cindy- 20
Is there a way to get this to work? Should I set an special option? Thank you very much.
Im using jdeveloper 11g.

Hi John, it depends on which type of polling strategy you are using to poll the new/updated records. You must have the necessary previleges to add the special field and creat triggers or your db team must have.
i.Physical delete polling strategy: Cannot capture the UPDATE operations on the table.This because when the adapter listens to the table, when ever a record is polled, that record is deleted after the polling process. After polling the records, if it is not deleted, then the adapter knows that it’s a updated one but here when a record is polled, it is deleted. So when an adapter encounters a record, it’s a new record to the adapter though the record is updated before the polling cycle). So physical delete cannot capture UPDATED records.
ii. Logical delete polling strategy: The logical delete polling strategy updates a special field of the table after processing each row (updates the where clause at runtime to filter out processed rows).The status column must be marked as processed after polling and the read value must be provided while configuring the adapter. Modified where clause and post-read values are handled automatically by the db adapter.
Usage:
<operation name="receive">
<jca:operation
ActivationSpec="oracle.tip.adapter.db.DBActivationSpec"
PollingStrategyName="LogicalDeletePollingStrategy"
MarkReadField="STATUS"
MarkReadValue="PROCESSED"
This polling strategy captures the updated records only if triggers are added.This is because when the record is polled, its status is updated to 'PROCESSED'. To capture this record if its updated, its status has to be 'UNPROCESSED'. So a trigger has to be added to update the status field to 'UNPROCESSED' whenever the record is updated. Below is the example.
Ex:
CREATE OR REPLACE TRIGGER nameOftrigger_modified
BEFORE UPDATE ON table_name
REFERENCING NEW AS modifiedRow
FOR EACH ROW
BEGIN
*:modifiedRow.STATUS :='UNPROCESSED';*
END;
In this example, STATUS is the special field(of the polling table). When the record is updated, the trigger gets fired and updates the STATUS field to 'UNPROCESSED'. So when the table is polled, as this record's status is Unprocessed, this record ll be captured during polling.
Other polling strategeis like "Sequencing Table Last Updated","Sequencing Table Last-Read Id" Polling strategy,etc also can be used to capture the updated records. In these strategies also, you need to add the triggers like the above. These need an extra helping table also to poll.
Logical delete polling strategy is good enough to poll the updated records.
Hope this helps.
Thank you.

Database Adapter-Insert

Hi,
I am new to BPEL. I am trying to learn through tutorials. I am working on Insert tutorial (Database Adapters).
I was able to compile the project sucessfully in jdev and deploy to Bpel server.
After giving the input and hitting on post xml message the follwing error comes up:
file:/C:/product/10.1.3.1/OracleAS_1/bpel/domains/default/tmp/.bpel_Insert_1.0_3955c8686706b0e75f228f767a18cf38.tmp/InsertService.wsdl [ InsertService_ptt::insert(MoviesCollection) ] - WSIF JCA Execute of operation 'insert' failed due to: DBWriteInteractionSpec Execute Failed Exception.
insert failed. Descriptor name: [Insert.Movies]. [Caused by: JDBC 2.0 feature is not yet implemented]
; nested exception is:
     ORABPEL-11616
DBWriteInteractionSpec Execute Failed Exception.
insert failed. Descriptor name: [Insert.Movies]. [Caused by: JDBC 2.0 feature is not yet implemented]
Caused by Exception [TOPLINK-4002] (Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)): oracle.toplink.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: JDBC 2.0 feature is not yet implementedError Code: 0.
Does anyone have idea about this error?
My settings in oc4j_ra.xml are as below:
<connector-factory location="eis/DB/BPELSamples" connector-name="Database Adapter">
          <config-property name="xADataSourceName" value=""/>
          <config-property name="dataSourceName" value=""/>
          <config-property name="platformClassName" value="oracle.toplink.internal.databaseaccess.OraclePlatform"/>
          <config-property name="usesNativeSequencing" value="true"/>
          <config-property name="sequencePreallocationSize" value="50"/>
          <config-property name="defaultNChar" value="false"/>
          <config-property name="usesBatchWriting" value="true"/>
          <config-property name="driverClassName" value="oracle.lite.poljdbc.POLJDBCDriver"/>
          <config-property name="connectionString" value="jdbc:polite4@localhost:1531:orabpel"/>
          <config-property name="userName" value="system"/>
          <config-property name="password" value="manager"/>
          <config-property name="minConnections" value="1"/>
          <config-property name="maxConnections" value="5"/>
          <config-property name="minReadConnections" value="1"/>
          <config-property name="maxReadConnections" value="5"/>
          <config-property name="usesExternalConnectionPooling" value="false"/>
          <config-property name="usesExternalTransactionController" value="false"/>
          <connection-pooling use="none">
          </connection-pooling>
          <security-config use="none">
          </security-config>
     </connector-factory>
and datasources.xml is
<connection-pool name="BPELPM_CONNECTION_POOL">
<connection-factory factory-class="oracle.lite.poljdbc.POLJDBCDriver"
user="system"
password="manager"
url="jdbc:polite4@localhost:1531:orabpel" />
</connection-pool>
<managed-data-source name="BPELServerDataSource"
connection-pool-name="BPELPM_CONNECTION_POOL"
jndi-name="jdbc/BPELServerDataSource" tx-level="global"/>
<managed-data-source name="BPELServerDataSourceWorkflow"
connection-pool-name="BPELPM_CONNECTION_POOL"
jndi-name="jdbc/BPELServerDataSourceWorkflow" tx-level="local"/>

I have a database connection called bpel samples in jdev. Can anyone help me in creating bpel process to insert data in a table using database adapters.
I am not able to get any output for any of the database adapter tutorials. Any hints????
Thanks in advance.
Edited by: user3833651 on Apr 22, 2009 8:17 PM

The database version is only important with the dehydration store. If you are using the adapters to select / delete / update / insert data into your application it comes down to the jdbc drivers. Basically if you are above 8i you should be fine.
olite is a very basic database, and the jdbc drivers are flaky, it's also not based on the Oracle code, therefore is not upgradable if you want to increase performance. You would need to perform some manual steps to migrate to a standard database.
If you are wanting to do basic tutorials and don't want to have a heavy database using all your resources, use oracle XE. No need to pact. If you have a oracle database installed somewhere use that.
http://www.oracle.com/technology/software/products/database/xe/index.html
cheers
James

Database Adapter and SQL Server procedure issue

Hello,
I am using Jdev 11.1.1.7.0 and SQL Server 2005.
In the Database Adapter configuration wizard, Specify Stored Procedure step, I choose the “GEACupax” schema and got the following error after a click on “Procedure Browse” button:
com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'GEACUPAX.INFORMATION_SCHEMA.SCHEMATA'.
The command Database Adapter tried to execute was:
(from jdev log:) select schema_name from GEACUPAX.INFORMATION_SCHEMA.SCHEMATA order by schema_name;
Note, the schema name has changed to uppercase. I think that is the problem. If I try this query in SQLDeveloper, it returns the same error. I can fix it changing the schema name to “GEACupax”. The case matters.
Any ideas?
Leandro.

Vijay,
Thanks for you reply.
I figure out a related bug:
Bug 12859472: Cannot browse store procedure in case-sensitive MS SQL Database
There are two possible workarounds:
1. Use a database name with capital letters
2. Do not use stored procedures, but access the tables directly.
The notes on the Bug ticket describes that the issue would be scheduled to be fixed in PS7 which is 11.1.1.8.
Cheers!
Leandro.

Database adapter wizard issue

Hi,
I recently created a bpel flow containing a database adapter where I completed all the steps through to completion. Since then, when I attempt to review the adapter by double-clicking on it and then click on "Define Adapter Service", then when I step through to the "Adapter Config. Wizard - Select Table" I am told :
'No Tables Imported'.
I cannot figure out what I have done to have caused this. As far as I can see everything related to the database adapter from its initial creation still exists:
* under "Application Sources" I see the adapter, and within this are 3 javaclasses that relate to the tables in the join
* under "Application Sources->TopLink" again I see a reference to the adapter
* under "Integration Content", there is another reference to the adapter, which contains :
- wsdl, xsd & toplink mappings xml
I have two further database adapters that do not have any issues - I can use the wizard to review their configuration. The entire flow compiles without issues...
Is there anyway I can "fix" the 1st adapter so that the wizard correctly shows the imported tables?
Thanks in advance.
Anit

Hi,
No it is not a bug, I think. If you created your query by choosing from imported tables/views and related those using the wizard, the only way to change them is to re-import the tables and basically redefine your database adapter.
It's a pity, but that's how it is (also in 10.1.2 I saw recently).
Regards,
Martien

Database Adapter Wizard does not show accessible table

HI guys,
in the wizard I am unable to see the tables which I need to use for database adapter.
But I do have access to those tables, and able to select from them in SQL worksheet from with in Jdev.
I dont own the tables, but my user id have readable access to those tables.
Any help is appreciated.
P.S. If I didnt explain it properly, plz let me know. It really creates lot of access issues if I can only create DB adapter on My owned tables.
:)

Hi there,
please see the answer to your duplicate post on the BPEL forum:
DB Adapter does not show selectable tables
In general BPEL forum gets a lot more traffic but I will try to address questions on both equally.
Thanks
Steve

Couldnot able to use the database adapter in JDEV 10.1.2

Iam facing problem while creating the database adapter
I have dragged the partnerlink to the diagram view and then click the database adapter icon ,the wizard will open ,
Choose "APPS" for Schema. Select "HZ_ORGANIZATION_BO_PUB.CREATE_ORGANIZATION_BO"
then click next,after clicking finish button ,a eror popup window aill appear the following status
"WSDLException:faultcode=OTHER_ERROR:database type is either not supported or is not implemented
parameter P_ORGANIZATION_OBJ is of type HZ_ORGANIZATION_BO which is either not supported or not implemented datatype"

Try posting this on the BPEL forum.

Unable to import table using SOA database adapter in Jdev

hi all,
I am learning soa 11g development by myself which is quite exciting stuff.
I am trying to build a simple flow to access database so I have dropped a database adapter in composite.xml and trying to configure the adapter.
I have successfully tested the database connection within the adapter configuration wizard and can list the tables as well. But when I am selecting a table to import then I don't see any table imported in Step-5.
It doesn't show me any error. I have tried with other tables and also with other databases but can't import the tables.
Any advice will be appreciated.
Oracle SOA Version11.1.1.4.0
JDeveloper Version 11.1.1.6.0
Thanks,
Raj

Hi Raj,
You have to select the required tables and move it to the blank area on right side of your selection window by clicking the arrow button.
cheers

JDeveloper 11g Errors Editing BPEL Database Adapter

I am encountering problems editing Database Adapters in a BPEL based Service Composite Application in JDeveloper. Specifically,
* double-clicking an existing Database Adapter component to view/edit it generates an uncaught exception in the GUI
* clicking Next through the wizard proceeds to the next step but the view showing the
SQL select criteria and input parameters doesn't return the original values set when the
adapter was first created -- a second NPE is logged at that time
Here are the specifics of what's running:
* host for JDeveloper is a Windows7 Home Premium 64-bit (version 61. build 7601 SP 1) PC with 8GB RAM
* JDeveloper 11.1.1.5 (the SOA / WebCenter version)
* the c:\OracleMW directory has JDK 6.0.24 installed
* the Windows machine does have Java EE JDK 7 installed but JDeveloper uses the JDK inside c:\OracleMW
* while running, JDeveloper is using around 274M of memory
* database hosting the SOA meta data store and the desired DB of the adapter is 11g (11.2.0.1.0)
* database is up, reachable and healthy while attempting to edit the Adapter component
Here is the exact error encountered and the stack trace:
GUI popup = An unexpected error has occurred in JDeveloper. The program may be unstable, which could result in data loss. Decide how you want to proceed and click OK.
Details = Uncaught exception
java.lang.NullPointerException
o.tip.tools.ide.adapters.designtime.adapter.xr.util.SQLRefresher.run(SQLRefresher.java:118)
j.lang.Thread.run(Thread.java:662)
If you click on ignore / continue and proceed through the steps of the Wizard, when the Define Selection Criteria step appears, the original criteria and input parameters defined when the adapter was first built are not displayed and the "Feedback - Log" tab in the log windows registers another entry of:
Previously reported error [NPE in o.tip.tools.ide.adapters.designtime.adapter.xr.util.SQLRefresher:118]
Also, if you go through the motions of adding a new parameter variable in the top section of the dialog, after clicking OK, the dialog DOES suddenly display the original variables defined as input parameters.
Thinking this is a symptom of JDeveloper trying to run in too little memory, I have attempted to increase the max memory setting of JDeveloper to 1024M by adding this line
AddVMOption -Xmx1024M
in
c:\OracleMW\JDeveloper\jdev\bin\jdev.conf
I've also tried adjusting that same setting in the config file for the IDE itself at
c:\OracleMW\JDeveloper\ide\bin\ide.conf
and get the same result. (Subsequent review of properties in About JDeveloper shows that JDeveloper uses the jdev.conf file, not the ide.conf file FWIW.) Memory really shouldn't be a problem because I'm still new to SOA style development and the "application" involved is a very simple "HelloSOA" type service that just sets a couple of BPEL variables, transforms some input variables into variables passed to this Database Adapter, does a few more Transform operations for the DB result values to the reply values and sends the reply.
However, one other sign that memory utilization could be contributing to this is that periodically, switching to the "Source" view of the composite.xml file or the BPEL process file will lock the GUI up for about 35 seconds with nothing happening. An obvious sign of garbage collection gettng triggered.
Any suggestions?

Oracle has identified a fix added to newer versions of JDeveloper which corrected these NullPointerException errors encountered using the 11.1.1.5 version of JDeveloper. That fix had not be propagated back to the 11.1.1.5 version but subsequently HAS been ported back. The fix is associated with patch ID 12670305 which can be downloaded from http://support.oracle.com by searching for that bug ID then downloading the associated ZIP file. I've applied the patch to JDeveloper 11.1.1.5 running on Windows7, Vista 32-bit and LINUX 64-bit and it works like a champ on all three platforms.

Database adapter not returning all the records

I've taken over a BPEL from a developer who left the organization and have been having an issue during our User Acceptance Testing. We are querying a table that will return the insurance enrollment information for employee's and their dependants. When an employee change plans, or adds people, the old plan is terminated and a new once is created. When this happens there will be two records on the database to show the old plan and the new plan.
When we run the SQL thru JDEV or SQLDeveloper, the data comes out fine. When we run it through a BPEL Database Adapter we are only getting one of the rows returned.
I have created a small tester BPEL that is easily modified and deployed to run the same query to try multiple configurations changes within the DBAdapter. What I have found is all the records are returned when the "Return single result set" box on the DBAdapter Wizard is unchecked. When it's checked then it only returns one record for the employees with an old and a new plan.
Can someone explain what the "Return single result set" option does, and what the impact will be if it's unchecked?

Hello,
In same way i am using two parent-child(header-line) tables. they have one to many relationship.
I want to generate XML which contains multiple line items under a child elements for header elements.
I have tried it but i am getting only one line under that child item. i am using jdev10.0.3.3.0
can u help me please.
-regards
satyendra

Database Adapter: cannot access table with complex record type as columns

Hi all,
I cannot perform any operations on a table that has columns with complex record type.
I have created a table to store purchase order details.
Sample script:
CREATE type XX_CUST_INFO_TYP as object
ssn VARCHAR2(20),
rating NUMBER(15)
CREATE type XX_ITEM_TYP as object
item_name VARCHAR2(20),
unit_price NUMBER(15),
quantity NUMBER(15)
CREATE table XX_PORDER (cust XX_CUST_INFO_TYP, porder XX_ITEM_TYP);
When i try to access the table X_PORDER in jdev through a database Adapter, i receive the error as
"some tables contains columns that are not recognized by the database adpter"
1.) so in this case, how to include such tables that have complex types?
Also, check out this scenario also..
1. add a table through a database adapter
2. drop the table in backend
3. i can still see the table and its structure in the database adapter wizard even after restarting Jdeveloper.. How is it possible?
These are some really interesting scenarios to experiment. Please suggest your ideas on this..
Thanks All!

Hi Hem,
for a select you could select against a view. And for inserts you could create a stored procedure. They support complex types since 10.1.2. Complex types support in tables/views was added for 11 (next major release).
You might be able to use PureSQL as a workaround too, i.e.
insert into XX_PORDER values (XX_CUST_INFO_TYP(?,?), XX_ITEM_TYP(?, ?, ?))
As for your other problem, in 10.1.2/10.1.3 the DBAdapter wizard sits on top of the Jdev Offline Tables and TopLink Mapping Workbench components. When you remove a table in the wizard it won't delete the Offline DB component. It was added by the wizard, but afterwards it is public to the entire Jdev project. You must remove it from Jdev yourself. This has been improved for the next major release too, no artifacts from underlying components are created.
To remove it select:
Offline DB Objects -> <schema> -> <table> and try File.. Erase From Disk.
Thanks
Steve

File to database adapter error

I am trying to run the File2Database example shipped as part of database adapter samples.Though i have created the tables and modified oc4j-ra.xml as mentioned in readme file.I am getting merge error followed by table or view does not exist,but tables do exist under schema specified in oc4j-ra.xml.Do i need to configure anything else.Please let me know if anyone has faced similar problem.
This is the log :
=====================
<2005-06-15 16:26:59,056> <INFO> <default.collaxa.cube.ws> <AdapterFramework::Outbound> Since unable to locate the JCA Resource Adapter deployed at 'eis/MyDBConnection', will then attempt to instantiate ManagedConnectionFactory oracle.tip.adapter.db.DBManagedConnectionFactory directly.
<2005-06-15 16:27:08,738> <INFO> <default.collaxa.cube.ws> <Database Adapter::Outbound> <oracle.tip.adapter.db.ox.TopLinkXMLProjectInitializer initialize> Initializing an existing toplink project for use by the database adapter.
<2005-06-15 16:27:09,755> <ERROR> <default.collaxa.cube.ws> <Database Adapter::Outbound> <oracle.tip.adapter.db.DBInteraction executeOutboundWrite> unable to execute the outbound merge operation on: File2Table.Purchaseorder
<2005-06-15 16:27:09,817> <ERROR> <default.collaxa.cube.ws> <AdapterFramework::Outbound> file:/D:/OraBPELPM/integration/jdev/jdev/myWork/File2Table/DBOutbound.wsdl [ DBOutbound_ptt::merge(PurchaseorderCollection) ] - Could not invoke operation 'merge' against the 'Database Adapter' due to:
ORABPEL-11616
DBWriteInteractionSpec Execute Failed Exception.
merge failed. Descriptor name: [File2Table.Purchaseorder].
Caused by Local Exception Stack:
Exception [TOPLINK-4002] (OracleAS TopLink - 10g (9.0.4.5) (Build 040930)): oracle.toplink.exceptions.DatabaseException
Exception Description: java.sql.SQLException: ORA-00942: table or view does not exist
Internal Exception: java.sql.SQLException: ORA-00942: table or view does not exist
Error Code: 942
at oracle.toplink.exceptions.DatabaseException.sqlException(DatabaseException.java:227)
at oracle.toplink.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:698)
at oracle.toplink.threetier.ServerSession.executeCall(ServerSession.java:506)
at oracle.toplink.internal.queryframework.CallQueryMechanism.executeCall(CallQueryMechanism.java:131)
Regards
Raju

Hi Raju,
Looking at the error your DBOutbound.wsdl has [location="eis/MyDBConnection"] although the sample shipped has [location="eis/DB/BPELSamples"]. So, I am guessing you have either modified the sample manually, or you may have rerun the db adapter wizard which could have caused this change. So, you could fix this in one of the following ways:
1. Start with a fresh sample and follow the instructions to the dot
2. Go ahead and define an entry in oc4j-ra.xml for eis/MyDBConnection with the appropriate connection parameters
3. Currently, when the jndi name is not defined in the oc4j-ra.xml, the runtime tries to work with the design time connection information which is captured in the DBOutbound.wsdl. In your case, this doesn't seem to work for either of the following reasons: your runtime connection is different from design time connection, or else the design time connection info is not valid for the runtime assuming it is running on different m/c. I could pinpoint what is wrong if I had access to the DBOutbound.wsdl file.
Couple of other best practices while we are on this issue:
- the location attribute which ties the design time and runtime together follows a convention so that we don't have to make sure that it is unique across all of the various adapters: to help out on this front, we follow the convention of eis/<AdapterAbbrev>/<connectionName>. So, I'd change yours to eis/DB/MyDBConnection. By default the wizard generates locations using this convention although it is hand-editable.
- from another error message below "file:/D:/OraBPELPM/integration/jdev/jdev/myWork/File2Table/DBOutbound.wsdl [" I get the feeling that you are copying the sample elsewhere. Is there a need to do that ? You could just add the jdev project (.jpr) for this sample to any existing jdev workspace and you should be able to deploy from there w/o making any changes. This approach would be preferable and would have helped you from running into the set of issues that you are seeing.
Let me know if the above makes sense.
Cheers,
Shashi

"Error: null" when compiling database adapter project...

Hello...
I started to work trough the Order Booking Tutorial...
In the end there is a Database Adapter. When i follow this tutorial step by step... I got a "Error: null" at the end when compile and deploy this project...
What das "Error: null" mean? In this relation...
Connection to database is configured correctly..
Thanks for any reply..

Thanks a lot for fast answer...
I do so, and i just run through the tutorial again... Now it works...
Everything I changed except of restart jdev I change the line ( Oracle_Home\integration\orabpel\system\appserver\oc4j\j2ee\home\application-deployments\default\DbAdapter\oc4j-ra.xml )
<config-property name="platformClassName" value="oracle.toplink.internal.databaseaccess.OraclePlatform"/>
to
<config-property name="platformClassName" value="oracle.toplink.internal.databaseaccess.DatabasePlatform"/>
What does this line represent...?! So what is the platformClassName...
Thanks a lot...
Message was edited by:
Optimizer

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

Jdev database adapter config wizard

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