Custom finder methods

I'm tring to deploy an Entity bean (CMP) with custom finder method that gets a parameter.
I encountered two problems :
1) defining the query in the deployment descriptor coased the app server to generate the a query without the where cloase - this was fixed by changing manualy the orion-ejb-jar.xml in the application-deployments directory.
2)the second, and yet unresolved problem, is that OC4J doesn't bind the parameter that the query uses during runtime. I'm recieving an ORA msg that claims that not all the parameters are binded.

see sample code
http://otn.oracle.com/sample_code/tech/java/oc4j/htdocs/oc4jsamplecode/oc4j-demo-ejb.html
also there should be a section in our documentation about cmp custom finder methods. oc4j attempts to generate custome finder methods based on home interface
<finder-method query="$empNo = $1">
<method>
 <ejb-name>EmployeeBean</ejb-name>
 <method-name>findByEmpNo</method-name>
 <method-params>
 <method-param>java.lang.Integer</method-param>
 </method-params>
 </method>
 </finder-method>

Similar Messages

Using wildcards in custom find methods with CMP beans

Hi,
I'd like to create a custom find method called findByName which accepts a string. I'd typically want to use the string in a '%<name>%' scenario, where the user needn't type in the whole name. Does anybody know what the partial query should look like? I'm not sure how to concatenate the '%' symbol to the string taken in.
Thanks in advance
Gillian

Gillian-
Bind variables are of the form $1, $2, etc., so try using a query stmt like this:
select * from YOURTABLE where name like '%$1%'
Regards,
-Jon

CMP Custom Finder Method Problem

Hi everybody,
I have a problem about CMP Custom Finder Method.
I made CMP Entity Bean and deployed.
Then, I updated finder section in orion-ejb-jar.xml to add my custom finder query.
Here is updating finder section in my orion-ejb-jar.xml.
<finder-method query="(($schStartDate <= TO_DATE($1,'MM-DD-YYYY a HH:MI') and $schEndDate >= TO_DATE($1,'MM-DD-YYYY a HH:MI')) or ($schStartDate <= TO_DATE($2,'MM-DD-YYYY a HH:MI') and $schEndDate >= TO_DATE($2,'MM-DD-YYYY a HH:MI'))) and ($schRoom = $3)">

<method>
<ejb-name>RoomSchedule</ejb-name>
<method-name>findBySchDateAndRoom</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
</method-params>
</method>
</finder-method>
<resource-ref-mapping name="jdbc/OracleDS" />
And, i restarted oc4j. so, oc4j redepoyed CMP bean.
But, when my client program called CMP Bean, lookup() was ok, but calling findBySchDateAndRoom() was bad.
I couldn't get any result collection.
Here is my client code.
Context ctx = new InitialContext();
Object ref = ctx.lookup("RoomSchedule");
roomScheduleHome = (RoomScheduleHome) PortableRemoteObject.narrow(ref, RoomScheduleHome.class);
String startDT = new String("07-30-2002 am 10:30");
String endDT = new String("07-30-2002 pm 05:20);
String roomID = "TEST";
Collection roomAllSch = roomScheduleHome.findBySchDateAndRoom(startDT, endDT, roomID1);
Iterator roomSchItr = roomAllSch.iterator();
int schQty = 0;
while (roomSchItr.hasNext()) {
roomSchedule = (RoomSchedule) roomSchItr.next();
if(roomSchedule.getStatus().equals("A"))
schQty++;
After excuting above code, schQty was still zero!!
Because Collection roomAllSch had not any items.
But, table ROOMSCHEDULE had 30 records which were same query condition in my database.
I traced SQL statement using P6Spy Class.
Here is spy.log.
1028006337814|10|0|statement|select * from RoomSchedule where ((RoomSchedule.schStartDate <= TO_DATE(?,'MM-DD-YYYY A.M. HH:MI') and RoomSchedule.schEndDate >= TO_DATE(?,'MM-DD-YYYY A.M. HH:MI')) or (RoomSchedule.schStartDate <= TO_DATE(?,'MM-DD-YYYY A.M. HH:MI') and RoomSchedule.schEndDate >= TO_DATE(?,'MM-DD-YYYY A.M. HH:MI'))) and (RoomSchedule.schRoom = ?)|select * from RoomSchedule where ((RoomSchedule.schStartDate <= TO_DATE('7-30-2002 ?@@| 01:00','MM-DD-YYYY A.M. HH:MI') and RoomSchedule.schEndDate >= TO_DATE('7-30-2002 ?@@| 01:00','MM-DD-YYYY A.M. HH:MI')) or (RoomSchedule.schStartDate <= TO_DATE('7-30-2002 ?@HD 12:00','MM-DD-YYYY A.M. HH:MI') and RoomSchedule.schEndDate >= TO_DATE('7-30-2002 ?@HD 12:00','MM-DD-YYYY A.M. HH:MI'))) and (RoomSchedule.schRoom = 'Earth')
1028006337824|10|0|statement|select RoomSchedule.schTitle, RoomSchedule.schStartDate, RoomSchedule.schEndDate, RoomSchedule.schDayAll, RoomSchedule.status, RoomSchedule.schRoom, RoomSchedule.reqUser, RoomSchedule.apprUser, RoomSchedule.purpose, RoomSchedule.relatoinID, RoomSchedule.schDesc, RoomSchedule.reqDate, RoomSchedule.apprDate from RoomSchedule where (RoomSchedule.schID = ?)|select RoomSchedule.schTitle, RoomSchedule.schStartDate, RoomSchedule.schEndDate, RoomSchedule.schDayAll, RoomSchedule.status, RoomSchedule.schRoom, RoomSchedule.reqUser, RoomSchedule.apprUser, RoomSchedule.purpose, RoomSchedule.relatoinID, RoomSchedule.schDesc, RoomSchedule.reqDate, RoomSchedule.apprDate from RoomSchedule where (RoomSchedule.schID = 0)
As you see it, two query statement were executed.
First query statement was ok and got some result records.
But, second query statement was bad so didn't get any result records.
I didn't understand why second query statement was executed.
When roomAllSch.iterator() was being excuted in my client program, second query statment was executed.
I couldn't believe....
What's wrong? Please help me....
OC4J : Version 9 Release 2
Database : Oracle 8i
OS : Windows 2000 Professional

I created CMP of EJB 1.1, I wanted to add a finder
there, but it didn't work.
the error message is:
"AccountEJB_vkbo0d_HomeImpl.java":
AccountEJB_vkbo0d_HomeImpl should be declared
abstract; it does not define findBySalary(float) in
AccountEJB_vkbo0d_HomeImpl at line 11, column 1I think I don't remember CMPs having finder methods anything other than abstract. The code goes in the deployment descriptor. I hope you atleast got that right.
Richard.

Problem when creating CAF Entity Service finder Methods

Guys,
Can any one please suggest me appropriatly to the below problem.
I am using NWDS 7.06. I have no problem when creating CAF project, Application Service and Entity Service even.
But in the Entity Service:
1. Add a string or longtext attribute.
2. try to create a custom finder method in operations tab, during that operation i am not finding the attribute which i have created in step1.
That means i am not able to create the my own finder methods with parameters.
I was able to do that in some version long ago but i have forgotten that NWDS version.
summary of Problem Is: " Cannot create custom methods with custom parameters in Entity Service"
Can you please suggest me the right version or a solution to this problem on urgent basis please.
I promise you that i will give you full points to you who ever gives me the right solution.
Please mail your suggestions to [email protected]

Guys,
I have solved the problem successfully. Thanks for your attention.

Finder methods for CMP beans

We do not implement finder method in Bean class for CMP. As such, where do we implement finder methods such as findInRange() method? How does the container implement my custom "find" methods.
Thanks

Using CMP 2.x, your custom finder and select methods are implemented by the container based on the EJB QL query you provide in the ejb-jar.xml. In CMP 1.1, there was no portable way to express the semantics of the query, so most vendors had a vendor-specific syntax for describing the query.
See chapter 27 of the J2EE 1.4 Tutorial for some examples of using EJB QL :
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/index.html
--ken
Kenneth Saks
J2EE SDK Team
SUN Microsystems

IN expression in finder method

is it possible to define a CMP bean to include a custom finder method to retrieve records that satisfy an IN expression, like in:
SELECT * FROM CUSTOMERS WHERE IDCUST IN( $1 )
If so? How should I code the finder method in orion-ejb-jar.xml?
I am using EJB 1.1 under OC4J 9.0.2.1 and JDev 9.0.2
Thanks,
Fedro

You have a solution replacing LIKE with LOCATE function
LOCATE return the current position into string of ocurrence or substring
For
locate('AN','BANDERA')
Return 1
Example:
...where (?1, e.description) > 0
Good luck!!

CMP Finder Method

Could you supply a couple of examples of setting up a custom CMP Finder Method using both SQLJ and JDBC?
In particular how is the SQL coded in the "SQL Query" textbox on the "Method" tab? How are the parameters and the result set referenced and returned? What is the return type?
Simple Select / Where clause multirow and single row examples should suffice.
I using JDeveloper 9.0.2.8.2.
Thanks.

You can create custom CMP Finder Methods which takes appropriate sql but not SQLJ and JDBC.
i.e if you are adding a custom finder method in orion-ejb-jar.xml it takes only SQL not java code
In JDeveloper select orion-ejb-jar.xml in the project and right-click on it and choose Settings option
Select the Entity bean in the navigator and choose Finder methods
Click on Add. The dialog box will allow to add a new finder method with SQL query
Click on Help for specific information
Couple of hints are
Partial
Whether or not the specified query is a partial one. A partial query is the 'where' clause or the 'order' (if it starts with order) clause of the SQL query.
Queries are partial by default. If partial="false" is specified then the full query is to be entered as value for the query attribute and you need to make sure that the query produces a result-set containing all of the CMP fields. This is useful when doing advances queries involving table joins and similar.
Query
The query part of an SQL statement. This is the section following the WHERE keyword in the statement. Special tokens are $number which denotes an method argument number and $name which denotes a cmp-field name. For instance the query for "findByAge(int age)" would be (assuming the cmp-field is named 'age'): "$1 = $age".
Return type can be collection if the query is returning more than one row of data or it could be the entity bean type itself (if it is only one row)
raghu
JDev Team

Binary Data Type in finder methods for CMP beans

How to write an equivalent ejb-ql query in ejb-jar.xml for a finder method accepting
a byte array as a parameter. The finder method is for a cmp-field mapped to a
database field with binary data type

Using CMP 2.x, your custom finder and select methods are implemented by the container based on the EJB QL query you provide in the ejb-jar.xml. In CMP 1.1, there was no portable way to express the semantics of the query, so most vendors had a vendor-specific syntax for describing the query.
See chapter 27 of the J2EE 1.4 Tutorial for some examples of using EJB QL :
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/index.html
--ken
Kenneth Saks
J2EE SDK Team
SUN Microsystems

Access custom service method

in a jsf backing bean, i'm getting a reference to the application module (in order to call a custom service method and pass in parameters) in the following way:
FacesContext fc = FacesContext.getCurrentInstance();
ValueBinding vb = fc.getApplication().createValueBinding("#{data.LoginServiceDataControl.dataProvider}");
LoginService service = (LoginService)vb.getValue(fc);
I find myself rewriting this code over and over to get a reference to the application module. Researching this to find a better way, I saw a thread that suggested using the following code:
MyAM appModule = (MyAM) getBindings().getDataControl().getApplicationModule();
I've added the oracle.binding.BindingContainer bindings property to my backing bean, along with getters/setters. However, when i call getBindings(), I do not see getDataControl() as an option with the code insight dialog that pops up. Can someone tell me a clean/efficient way to access a custom service method and pass in appropriate parameters from a backing bean? Thanks.

Jammer,
It is not best practice to use the second way you suggest.
If you are repeating writing code like that, the best thing is to create a helper class.
For example, I use the helper class that I posted here:
http://radio.weblogs.com/0118231/stories/2006/12/18/sourceForMyFavoriteElHelperClass.html
Using that class, I do what you're doing with one line like this:
LoginService ls = (LoginService)EL.get("#{data.LoginServiceDataControl.dataProvider}}");Alternatively, if you will be doing this a lot in your backing beans, one thing you can consider is creating yourself a base class for all your backing beans to inherit from that can contain helper methods to simply their individual code.
For example, if you had a class like:
public class MyBackingBeanBase {
protected LoginService getLoginService() {
return (LoginService)EL.get("#{data.LoginServiceDataControl.dataProvider}}");
}Then any one of your backing beans for a specific page can extend this class and simply call getLoginService() to have typesafe access to the LoginService interface.

Not able to reload the data from DB using finder methods

Hi all,

I am facing a weird problem while using finder methods.
I am using weblogic 8.1 SP3 and entity beans are CMP with DB concurrency.DB is oracle

<h4>Problem Description</h4>

I am having one session bean which internally interacts with my entity beans,
Now say my transaction is getting initiated in one of the session bean and I use some finder in it.


To make the problem more clear lets say my entity bean is loanBean with loanId as primary key.
Now say method A of session bean initiates the transaction and I use something like
 
LoanLocal loanLocal =loanLocalHome.findByLoanId(loanId);
 
Note that I am not using findByPrimaryKey method
 
now this method A calls some other method B on some session bean which is having Required as its transaction attribute.
 
But before the call of B some other thread or background process updates the DB for this loanId and commits,
 
now when I fire the same finder in method B I am still getting the old data, ie I am not getting the data which has been modified in DB and committed by some other thread, I still get the old data and when I tried to generate the SQL queries which weblogic is firing, I see
it fires the SQL for every finder other that findByPrimaryKey.
 

Now my problem is I am getting the old data only and I need the new updated data of DB. isolation-level of DB and beans is READCOMMITTED.
Note:: I cant use new transaction to read the data.

 
And I couldn't understand that when weblogic is firing query for every finder then why it should not refresh the data in its cache. Is there any way to disable this kind of caching and say that everytime when i use finder just go to DB and get me the last committed data.

 
Any help in this regard would be very helpful to me.
 
Thanks and Regards
 
Manish Garg.


Hi,
In my understanding, cache is not involved in this scenario. As you
observed, the container fires sql every time when you invoke this finder.
So, it should just give the result that it got from the DB. Is there a
possibility that the DB is using repeatable_read or serializable for
isolation level?
You can debug further by doing couple of things -
1. Instrument the code in the generated RDBMS java file for the entity bean
(if you use -keepgenerated option for weblogic.ejbc, u can get the source of
this file). This class will have the implementation for ejbFindByLoanId. You
can just print the result set data after the query is fired.
2. Try the same scenario without the ejb container. Like, write a jsp which
will start a user tx and fire the query twice such that there is an update
between the two queries. Note that, you need to use a TxDataSource to get
the JDBC connection so that it will be tx aware.
--Sathish
<Manish Garg> wrote in message news:[email protected]...
Hi all,

I am facing a weird problem while using finder methods.
I am using weblogic 8.1 SP3 and entity beans are CMP with DB
concurrency.DB is oracle

<h4>Problem Description</h4>

I am having one session bean which internally interacts with my entity
beans,
Now say my transaction is getting initiated in one of the session bean and
I use some finder in it.


To make the problem more clear lets say my entity bean is loanBean with
loanId as primary key.
Now say method A of session bean initiates the transaction and I use
something like
 
LoanLocal loanLocal =loanLocalHome.findByLoanId(loanId);
 
Note that I am not using findByPrimaryKey method
 
now this method A calls some other method B on some session bean which is
having Required as its transaction attribute.
 
But before the call of B some other thread or background process updates
the DB for this loanId and commits,
 
now when I fire the same finder in method B I am still getting the old
data, ie I am not getting the data which has been modified in DB and
committed by some other thread, I still get the old data and when I tried
to generate the SQL queries which weblogic is firing, I see
it fires the SQL for every finder other that findByPrimaryKey.
 

Now my problem is I am getting the old data only and I need the new
updated data of DB. isolation-level of DB and beans is READCOMMITTED.
Note:: I cant use new transaction to read the data.

 
And I couldn't understand that when weblogic is firing query for every
finder then why it should not refresh the data in its cache. Is there any
way to disable this kind of caching and say that everytime when i use
finder just go to DB and get me the last committed data.

 
Any help in this regard would be very helpful to me.
 
Thanks and Regards
 
Manish Garg.

How do I use the find method to find multiple items in a single paragraph?

I am desigining a script to find any instances where ctrl+b and ctrl+i are applied to body text and then replace those character format overrides with Italic or Bold chartag. Here's what the script is supposed to do:
put the find method in a while loop that searches for character format overrides.
If a character format override is found, pass the text range returned by the find method and the CharPropsChange flag to the GetTextForRange method.
Use a boolean compare between the idata of the text item to the character angle and character weight constants.
Whichever boolean evaluates to true, then use the SetTextProp method to set properties of the text range to the properties of the italic or bold character tag.
This script does work on the first character format override found however it ignores any other overrides in the same paragraph. The cause of this is that the while loop updates the text loc that the find method uses to the next paragraph in flow. I suspect that i need to add an inner loop that goes through all the text in a single paragraph, where at teach iteration the text loc used by the find method is based on the same paragraph but the offset is modified. I am just not sure how to do that.
function removeOverrides (pDoc)
    var vDocStart = pDoc.MainFlowInDoc.FirstTextFrameInFlow.FirstPgf;
    var vBoldFmt=getCharFmt (pDoc, 'Bold')
    var vItalicFmt=getCharFmt (pDoc, 'Italic')
    initFA_errno ();
    while (FA_errno==Constants.FE_Success)
        var vTextLoc = new TextLoc(vDocStart,0);
        var vFindParams=findOverrideParams (pDoc);
        var vTextRange=pDoc.Find(vTextLoc,vFindParams);
        if (vTextRange.beg.obj.ObjectValid())
            var vTextItems=pDoc.GetTextForRange (vTextRange, Constants.FTI_CharPropsChange)
            if (vTextItems.length==!0 )
                if (vTextItems[0].idata==Constants.FTF_WEIGHT)
                   pDoc.SetTextProps (vTextRange, vBoldFmt.GetProps())
                if (vTextItems[0].idata==Constants.FTF_ANGLE)
                   pDoc.SetTextProps (vTextRange, vItalicFmt.GetProps())
                } else (Log (vLogFileName, '\nERROR: No items were found in the text format array but format override was found: '+pDoc.Name))
        vDocStart=vDocStart.NextPgfInFlow;
function findOverrideParams (pDoc)
    var vFindParams = AllocatePropVals(1);
    vFindParams[0].propIdent.num = Constants.FS_FindObject;
    vFindParams[0].propVal.valType = Constants.FT_Integer;
    vFindParams[0].propVal.ival = Constants.FV_FindCharacterFormatOverride;
   return vFindParams;

Hi Rick,
Well, following up on the previous posting, I actually did figure out how to make it work but it seems rather inefficient. I can insert a new paragraph right after the paragraph that has the table anchor but when i cut the table, i also cut the paragraph i just created. So to get around that, I create two paragraphs, so that there will be one paragraph left after i do the cut and that is the paragraph that I paste the table into. Once the table is pasted into the new paragraph, I delete the other paragraph that I created.
Here's the updated code from the for loop:
var vTbl = vDoc.GetUniqueObject(Constants.FO_Tbl, vTextItems[i].obj.Unique);
var vAnchorPgf=vDoc.NewSeriesPgf (vTbl.TextLoc.obj)
var vAnchorPgf2=vDoc.NewSeriesPgf (vAnchorPgf);
var vAnchorTextLoc=new TextLoc (vAnchorPgf2, 0);
var vTblTextRange=new TextRange ();
vTblTextRange.beg.obj=vTbl.TextLoc.obj;
vTblTextRange.beg.offset = vTbl.TextLoc.offset;
vTblTextRange.end.obj=vTbl.TextLoc.obj;
vTblTextRange.end.offset = Constants.FV_OBJ_END_OFFSET
vDoc.TextSelection=vTblTextRange;
vDoc.Cut (0);
vTblTextRange.beg.obj=vAnchorTextLoc.obj;
vTblTextRange.beg.offset = 0;
vTblTextRange.end.obj=vAnchorTextLoc.obj;
vTblTextRange.end.offset =0;
vDoc.TextSelection=vTblTextRange;
vDoc.Paste (0);
vAnchorPgf2.Delete();

How to add a finder method in the container manager Bean in the weblogic6.1

in the environment jbuilder6 andweblogic6.1,use container manager entity Bean,it can automatic generate the findAll() method,I want to add a new method to find an element in the home interface,such as findByName(),name is a element of a table of the database.in the weblogic-cmp-rdbms-jar.xml,this is part of the fiile:
<finder>
<finder-name>findAll</finder-name>
<finder-query><![CDATA[ (= 1 1) ]]></finder-query>
</finder>
<finder>
<finder-name>findByName</finder-name>
<finder-param>java.lang.String</finder-param>
<finder-query><![CDATA[ (=name $name) ]]></finder-query>
</finder>
It can successfully compile the findAll(),but it is wrong when compile the findByName(),as follows
"www.ejbgrpx": Method Name: findByName
"www.ejbgrpx": Invalid specifications for a WebLogic RDBMS CMP EJB.
"www.ejbgrpx": ERROR: Error from ejbc: weblogic.ejb20.cmp11.rdbms.finders.IllegalExpressionException:
"www.ejbgrpx": While trying to process Finder
"www.ejbgrpx": Parameter Types: (java.lang.String)
"www.ejbgrpx": WebLogic Query: (= name $name)
"www.ejbgrpx": Finder Expressions: ()
"www.ejbgrpx": Could not parse WLQL expression: (= name $name) null
"www.ejbgrpx": ERROR: ejbc found errors
thank you

The finder methods that you are referring to are only simple finder methods. If you would like to add specialized finder methods, you can make your entity bean with bean managed persistence and not container managed. If you are using EJB 2.0, your entity bean with container managed persistence can use EJB QL for finder methods. You can search for this topic and/or download the EJB 2.0 specifications
Hope this helps

How to call a custom controller method from view

Hi,
I ve created a simple web service and consumed it in a model. Mapped the input & output parameters to custom controller context which in turn mapped to component controller's context which in turn to view's contexts.
How to call a custom controller method from view?
Please explain the syntax.
Regards,
Manoj.

Hi Patralekha,
Give some idea for the below scenario:
I ve created a simple web service and consumed it in a model. What I did was
1) for the input parameters, mapped the node from view->custom controller->model
2)for the output parameter, mapping from model->custom controller->view.
It works fine.
But I don't want to access model nodes directly, rather I want to set the input param in somewhere else (like custom controller) before calling the appropriate method, same for the response also.
Share me your thoughts.
Regards,
Manoj.

How to call a custom controller method in a view

Hi ,
I am getting the partner no in the custom controller method . I want to call that method in the view.How is it possible......?

Hi Masood,
now i dont want cross compnent navigation ....
Requirement : Account Identification number in ZVIEW
My component is CRMCMP_BPIDENT
In the custom controller   CRMCMP_BPIDENT/CuCoBuPa under context node   SEARCHCUSTOMER
the attribute struct.partner is available
in this component im navigating from
CRMCMP_BPIDENT/ObjectCompVs   to   ZCRMCMP_BPIDENT/ZProducts
in the layout of   ZCRMCMP_BPIDENT/ZProducts
TRY .
lr_cuco ?= controller->get_custom_controller( 'CRMCMP_BPIDENT/CuCoBuPa' ).
CATCH cx_sy_move_cast_error.
RETURN.
ENDTRY.
check lr_cuco is bound.
lr_entity ?= lr_cuco->typed_context->SEARCHCUSTOMER->collection_wrapper->get_current( ).
check lr_entity is bound.
lv_account_name = lr_entity->get_property_as_string( iv_attr_name = 'BP_NUMBER' ).
this code is written to get the account identification number but still the same problem
lr_entity not getting populated .......
i checked IF_BSP_WD_HISTORY_STATE_DESCR~IS_RESTORABLE
hr rv_result is set to x.....
any suggestions....
Regards,
Sijo...

CMP Entity Bean with ejb-ql finder methods and INFORMIX database

Hi,
I have some CMP Entity Beans with finder methods defined in ejb-ql. In my ejb-jar, within <entity> definitions I have something like:
 <entity>
 <abstract-schema-name>BeanName</abstract-schema-name>
 <cmp-field><field-name>fieldOne</field-name></cmp-field>
 <cmp-field><field-name>fieldTwo</field-name></cmp-field>
 <query>
 <query-method>
 <method-name>findAll</method-name>
 <method-params></method-params>
 </query-method>
 <ejb-ql>SELECT OBJECT(o) FROM BeanName o</ejb-ql>
 </query>
 <entity>
And in persistent.xml:
<db-properties>
 <data-source-name>datasource_name</data-source-name>
</db-properties>
<entity-bean>
 <ejb-name>BeanName</ejb-name>
 <table-name>table_name</table-name>
 <field-map key-type="NoKey">
 <field-name>fieldOne</field-name>
 <column><column-name>column_one</column-name></column>
 </field-map>
 <field-map key-type="NoKey">
 <field-name>fieldTwo</field-name>
 <column><column-name>column_two</column-name></column>
 </field-map>
 <finder-descriptor>
 <method-name>findAll</method-name>
 <method-params/>
 </finder-descriptor>
Once deployed, on server side, I can found a java source file (with corresponding compiled class file) in path:
j2ee/cluster/server0/apps/companyName/MyEARApp/EJBContainer/temp/temp38837373733/route/to/package/
with names:
BeanName0_0pm.java
BeanName0_0PM.class
and the generated java file contains this code:
public java.util.Enumeration ejbFindAll() throws javax.ejb.FinderException, javax.ejb.EJBException {
 TransactionContext tc = pm.getTransactionContext();
 Connection conn = null;
 PreparedStatement pSt = null;
 ResultSet ejb_rs = null;
 int status = javax.transaction.xa.XAResource.TMSUCCESS;
 try {
 conn = pm.getConnectionForFindMethod();
 pSt = conn.prepareStatement("SELECT \"O\".\"COLUMN_ONE\",\"O\".\"COLUMN_TWO\", FROM \"TABLE_NAME\" \"O\"");
 ejb_rs = pSt.executeQuery();
I'm trying to call this method but it throws a SQLException when preparing the statement.
It seems that Informix does not like this SQL syntax because of upper case names, doble quotes on table alias, or something else.
When editing persistent.xml in netweaver, I can define the element <datasource-vendor> as ORACLE, SAPDB, MS_SQL_SERVER, DB2_UDB_AS400 or DB2_UDB_OS390 but INFORMIX is not an accepted value.
Is there any way to define how this SQL query is build?
Thanks in advance.

The return type of the finder method defined in the remote home interface is either the entity bean's remote interface or a collection of objects implementing the entity bean's remote interface. The return type of the finder method defined in the local home interface is either the entity bean's local interface or a collection of objects implementing the entity bean's local interface

Custom finder methods

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