Unable to save Sequence value to Database

Question

Hi,
I am trying to pupulate a sequence value so that I can use it as primary key along with the combination of other columns later. My problem is that the sequence value is getting populated on the page with the right value, But is not getting saved to the database. The Column is there in the VO. The column is blank on the table. When I print it(System.out.println("Seq=" + xSeq.getText(pageContext));), the value is null. Can anyone please advice what I am doing wrong OR if I am missing anything here.
Thanks
Ali
My CO file:
============
package lac.oracle.apps.lac.jobperf.server.webui;
import oracle.apps.fnd.common.VersionInfo;
import oracle.apps.fnd.framework.webui.OAControllerImpl;
import oracle.apps.fnd.framework.webui.OAPageContext;
import oracle.apps.fnd.framework.webui.beans.OAWebBean;
import oracle.apps.fnd.framework.OAApplicationModule;
import oracle.apps.fnd.framework.webui.OADialogPage;
import oracle.apps.fnd.framework.webui.TransactionUnitHelper;
import oracle.jbo.domain.Number;
import oracle.apps.fnd.common.MessageToken;
import oracle.apps.fnd.framework.OAApplicationModule;
import oracle.apps.fnd.framework.OAException;
import oracle.apps.fnd.framework.OAViewObject;
import oracle.apps.fnd.framework.webui.OAWebBeanConstants;
import oracle.apps.fnd.framework.webui.beans.layout.OAMessageComponentLayoutBean;
import oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean;
import oracle.apps.fnd.framework.webui.beans.message.OAMessageStyledTextBean;
import com.sun.java.util.collections.HashMap;
import oracle.bali.share.util.IntegerUtils;
import oracle.apps.fnd.framework.server.OADBTransaction;
* Controller for ...
public class ReviewCreateCO extends OAControllerImpl
public static final String RCS_ID="$Header$";
public static final boolean RCS_ID_RECORDED =
VersionInfo.recordClassVersion(RCS_ID, "%packagename%");
* Layout and page setup logic for a region.
* @param pageContext the current OA page context
* @param webBean the web bean corresponding to the region
OAApplicationModule am; // dave
OADBTransaction oadbxn; // dave
oracle.jbo.domain.Number Seq;
public void processRequest(OAPageContext pageContext, OAWebBean webBean)
// Always call this first
super.processRequest(pageContext, webBean);
am = pageContext.getApplicationModule(webBean); // dave
oadbxn = am.getOADBTransaction(); // dave
OAPageLayoutBean pageLayout = pageContext.getPageLayoutBean();
OAMessageComponentLayoutBean mainRn = (OAMessageComponentLayoutBean)pageLayout.findIndexedChildRecursive("MainRN");
// If isBackNavigationFired = false, we are here after a valid navigation
// (the user selected the Create Review button) and we should proceed
// normally and initialize a new Review.
if (!pageContext.isBackNavigationFired(false))
// We indicate that we are starting the create transaction(this
// is used to ensure correct Back button behavior).
TransactionUnitHelper.startTransactionUnit(pageContext,"jobperfCreateTxn");
// This test ensures that we don't try to create a new review if we
// had a JVM failover, or if a recycled application module is activated
// after passivation. If this things happen, BC4J will be able to find
// the row you created so the user can resume work.
if (!pageContext.isFormSubmission())
OAApplicationModule am = pageContext.getApplicationModule(webBean);
// String Seq = (String)oadbxn.getValue("Seq");
oracle.jbo.domain.Number Seq = oadbxn.getSequenceValue("lac.LAC_CM_PERF_REVIEW_SEQ");
OAMessageStyledTextBean xSeq = (OAMessageStyledTextBean)mainRn.findIndexedChildRecursive("Seq");
xSeq.setText(Seq.toString());
am.invokeMethod("createReview",null);
// Initialize the ApplicationpropertiesVO for PPR.
// am.invokeMethod("init");
else
if (!TransactionUnitHelper.isTransactionUnitInProgress(pageContext,"jobperfCreateTxn", true))
// We got here through some use of the browser "Back" button, so we
// want to display a stale data error and disallow access to the page.
// if this were a real application, we would propably display a more
// context-specific message telling the user she can't use the browser
//"Back" button and the "Create" page. Instead, we wanted to illustrate
// how to display the Applications standard NAVIGATION ERROR message.
OADialogPage dialogPage = new OADialogPage(NAVIGATION_ERROR);
pageContext.redirectToDialogPage(dialogPage);
} // end processRequest()
* Procedure to handle form submissions for form elements in
* a region.
* @param pageContext the current OA page context
* @param webBean the web bean corresponding to the region
public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
{    //super.processFormRequest(pageContext, webBean);
// Always call this first.
super.processFormRequest(pageContext, webBean);
OAApplicationModule am = pageContext.getApplicationModule(webBean);
OAPageLayoutBean pageLayout = pageContext.getPageLayoutBean();
OAMessageComponentLayoutBean mainRn = (OAMessageComponentLayoutBean)pageLayout.findIndexedChildRecursive("MainRN");
// Pressing the "Apply" button means the transaction should be validated
// and committed.
// OAPageLayoutBean pageLayout = pageContext.getPageLayoutBean();
// String Seq = SeqText.getText(pageContext);
oadbxn.putValue("Seq", Seq);
am = pageContext.getApplicationModule(webBean);
oadbxn = am.getOADBTransaction();
if (pageContext.getParameter("Apply") != null)
// Generally in the tutorial application and the labs, we've illustrated
// all BC4J interaction on the server (except for the AMs, of course). Here,
// we're dealing with the VO directly so the comments about the reasons
// why we're obtaining values from the VO and not the request make sense
// in context.
OAViewObject vo = (OAViewObject)am.findViewObject("jobperfVO1");
// Note that we have to get this value from the VO because the EO will
// assemble it during its validation cycle.
// For performance reasons, we should generally be calling getEmployeeName()
// on the EmployeeFullVORowImpl object, but we don't want to do this
// on the client so we're illustrating the interface-appropriate call. If
// we implemented this code in the AM where it belongs, we would use the
// other approach.
String employeeName = (String)vo.getCurrentRow().getAttribute("FullName");
// We need to get a String so we can pass it to the MessageToken array below. Note
// that we are getting this value from the VO (we could also get it from.
// the Bean as shown in the Drilldwon to Details lab) because the item style is messageStyledText,
// so the value isn't put on the request like a messaqeTextInput value is.
String employeeNumber = (String)vo.getCurrentRow().getAttribute("EmployeeNumber");
//ma String employeeNum = String.valueOf(employeeNumber.intValue());
//ma Number employeeNumber = (Number)vo.getCurrentRow().getAttribute("EmployeeNumber");
//ma String employeeNum = String.valueOf(employeeNumber.intValue());
// Simply telling the transaction to commit will cause all the Entity Object validation
// to fire.
// Note: there's no reason for a developer to perform a rollback. This is handled by
// the framework if errors are encountered.
OAMessageStyledTextBean xSeq = (OAMessageStyledTextBean)mainRn.findIndexedChildRecursive("Seq");
System.out.println("Seq=" + xSeq.getText(pageContext));
am.invokeMethod("apply");
// Indicate that the Create transaction is complete.
TransactionUnitHelper.endTransactionUnit(pageContext, "jobperfCreateTxn");
// Assuming the "commit" succeeds, navigate back to the "Search" page with
// the user's search criteria intact and display a "Confirmation" message
// at the top of the page.
MessageToken[] tokens = { new MessageToken("EMP_NAME", employeeName),
new MessageToken("EMP_NUMBER", employeeNumber) };
OAException confirmMessage = new OAException("PER", "LAC_FWK_TBX_T_EMP_CREATE_CONF", tokens,
OAException.CONFIRMATION, null);
// Per the UI guidelines, we want to add the confirmation message at the
// top of the search/results page and we want the old search criteria and
// results to display.
pageContext.putDialogMessage(confirmMessage);
HashMap params = new HashMap(1);
// Replace the current employeeNumber request parameter value with "X"
params.put("employeeNumber", "employeeNumber");
// IntegerUtils is a handy utility
params.put("employeeNumber",IntegerUtils.getInteger(5));
pageContext.forwardImmediately(
"OA.jsp?page=/lac/oracle/apps/lac/jobperf/webui/jobperfPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
params, //null,
false, // retain AM
OAWebBeanConstants.ADD_BREAD_CRUMB_YES);
else if (pageContext.getParameter("Cancel") != null)
am.invokeMethod("rollbackReview");
// Indicate that the Create transaction is complete.
TransactionUnitHelper.endTransactionUnit(pageContext, "jobperfCreateTxn");
pageContext.forwardImmediately("OA.jsp?page=/lac/oracle/apps/lac/jobperf/webui/jobperfPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
null,
false, // retain AM
OAWebBeanConstants.ADD_BREAD_CRUMB_NO);
} // end processFormRequest()
}

Answer 1

Hi Tapash,
Thanks for all of you guys(Tapash/Sumit/user550094) help. The sequence is working and also populating the values in the table when I do not have any validation checks imposed on it.
If I add any validations as mentioned in the exercise for create page where it checks if the sequence can be updated while null and so on... and throws appropriate exception. I get error. That is the code that I mentioned above.
Here is the validation code for EOImpl:
As mentioned below in order for the code to compile and work I had to comment the "throw new OAAttrvalException". If I uncomment the
"throw new OAAttrvalException" part, it gives me the following error while compiling:
"Error(796,13): method getPrimarykey not found in class lac.oracle.apps.lac.jobperf.schema.server.jobperfEOImpl"
public void setSeq(Number value)
// Because of the declaritive validation that you specified for this attribute,
// BC4J validates that this can be updated only on a new line, and that this,
// mandatory attribute cannot be null. This code adds the additional check
// of only allowing an update if the value is null to prevent changes while
// the object is in memory.
if (getSeq() != null)
/* throw new OAAttrValException(OAException.TYP_ENTITY_OBJECT,
getEntityDef().getFullName(), //getSeq(), // EO name
getPrimarykey(), // EO PK
"Seq", // Attribute Name
value, // Attribute value
"AK", // Message product short name
"FWK_TBX_T_EMP_ID_NO_UPDATE"); // Message name */
if (value != null)
// Seq ID must be unique. To verify this, check both the
// entity cache and the database. In this case, it's appropriate
// to use findByPrimaryKey() because you're unlikely to get a match, and
// and are therefore unlikely to pull a bunch of large objects into memory.
// Note that findByPrimaryKey() is guaranteed to check all employees.
// First it checks the entity cache, then it checks the database.
OADBTransaction transaction = getOADBTransaction();
Object[] employeeKey = {value};
EntityDefImpl empDefinition = jobperfEOImpl.getDefinitionObject();
jobperfEOImpl Seq =
(jobperfEOImpl) empDefinition.findByPrimaryKey(transaction, new Key(employeeKey));
if (Seq != null)
/* throw new OAAttrValException(OAException.TYP_ENTITY_OBJECT,
getEntityDef().getFullName(), // .getSeq(), // EO name
getPrimaryKey(), // EO PK
"Seq", // Attribute Name
value, // Attribute value
"AK", // Message product short name
"FWK_TBX_T_EMP_ID_UNIQUE"); // Message name */
// Note that this is the point at which the value is actually set on the EO cache
// (during the scope of setAttributeInternal processing). If you don't make this
// call after you perform your validation, your value will not be set correctly.
// Also, any declarative validation that you define for this attribute is executed
// within this method.
setAttributeInternal(SEQ, value);
} // end SetSeq
I am sorry if I have confused you. I really did not mean to do it.
Thanks,
Ali