TOPLINK QUERY - N to N objects

Well, let me see if I can explain my problem.
I have 4 Toplink POJOS:
Customers, Suppliers, Systems and one N-N entity called CustomerSupplier.
The CustomerSupplier table on my DB only have 3 fields:
CustomerID, SupplierID and SystemID.
I have a method on my Facade Bean that returns the CustomerSupplier rows for a specific Customer.
Well, given this, I want to create an ADF Table to show me this IDs. But, when I drag the CustomerSupplier collection (result of the method), I don't have the ID's, only the customer object, the supplier object and the system object.
How could I do this? I tried to manually drag the IDs that are inside the customer, supplier and system object but I can't.

Thanks Frank!
Yes, it's pointing to the CustomerSupplier object.
But I only had the object-oriented objects on my TopLink Descriptor, so when I return the CustomerSupplier there were only "Customer" object, "Supplier" object and "System" object.
I solved it putting the IDs of the 3 fields on my toplink descriptor, as I do on a normal relational system (not object-oriented).
Well, but I still have an doubt:
I have a query called "findCustomerSupplierByCustomerID".
If I pass the current CustomerID to this and create an ADF Table, this returns me the 3 IDs.
Could I show the names of the Customer/Supplier/System, like when I do a normal query with JOIN to the tables just to get the names?

Similar Messages

Changing the query on a view object

I have a view object right now, based on an entity. It is the default view object, so that means the query in the view object is straight forward, it grabs all of the attributes from the table. And there is no WHERE clause.
In reality I only want to show a finite set of rows from my table. Every time a record is changed/edited in this entity and committed, a new row in the database is created with the same information (I'm using CreateWithParams) except for a few columns.
I actually don't really have update on this table, just creation of new rows. But to the user, I want it to 'look' like they are editing something in the table.
Example:
12, 11:32,Thompson, 60 (the user edits this information in an adf table, and a new row is created in the db)
12, 11:55, Thompson, 75
I have a timestamp (see above) field in the database that is used as part of my primary key, so that I know which record is the latest.
When the VO query is run, I want the user to only see the latest row from the db.
12, 11:55, Thompson, 75
So...
I went to my VO, and I changed the WHERE query to add this:
where t1.TimeStamp = (Select MAX(t2.TimeStamp) FROM rcl.x t2 where t1.uid = t2.uid);
Now, this isn't a mysql/sql question. There's actually a better query that I'd rather run, but the VO editor doesn't allow me to change the query itself....
When I save the new WHERE to my VO, run my page again, I get the expected result (showing me only the latest records).
However, when I try and sort on the table in which my data is displayed, I am now getting ORDER BY errors.
I don't want my VO to be read-only sql based. I want to be able to update my table, so I have my VO running off of the entity.
Why doesn't the VO allow me to change the query itself? (Like do a subquery, instead of having my where clause do the work)
Why are order by errors being thrown when I sort on my adf table after changing the where clause in my view?
Hopefully I wasn't too convoluted in the explanation of my problem..
Thanks in advance,
Joel

HI Joe,
Regarding your problem you can do one of the following tasks:
1- easily to tuning on your view object, I mean in the tuning page of the view you can set that only return 1 record or 2-3 record fetch not all the record.
in the order by you will order by the timestamp field and descending.
2- you can order by the timestamp descending and in the where clause only set the rownum<2 (will return the last record) you can also set rownum<5 and get the 4 last record etc.
3-editing the view query in the expert mode is not advised at all because of many consequences that you will face.
4- maybe it is not bat that you add a readonly view for the table you mentioned and every time you unpdate the entity just re-execute the read-only view.( this method maybe is good maybe is not it depends on your business logic)
Regards.
Edited by: Amir Khanof on Sep 3, 2010 11:11 PM

Query for recurring reports using Query Builder in Business objects

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Need query to find out object Accessibility

Hi Gurus,
I am in need of a query that can show object accessibiliy .i.e
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Regrads

user5228856 wrote:
the solution you give me l give me a all out report ,
what i need is
select <<>>
from <<>>
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A simple query for an Account object *SOLUTION INSIDE*

I've been trying to do a query to the Account object in CRM for release 16.
This is the result after i run my app:
Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Server
at com.sun.xml.internal.ws.fault.SOAP11Fault.getProtocolException(SOAP11Fault.java:171)
at com.sun.xml.internal.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java:102)
at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:240)
at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:210)
at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:103)
at $Proxy30.accountQueryPage(Unknown Source)
at integra.universal.accountWS.AccountWS.<init>(AccountWS.java:145)
at integra.universal.accountWS.AccountWS.main(AccountWS.java:162)
Java Result: 1
BUILD SUCCESSFUL (total time: 10 seconds)
My code is :
crmondemand.xml.account.query.AccountQuery queryCuenta = new AccountQuery();
//Definimos el query a traves de QueryType
* Cada clase tiene su propia definicion de QueryType
* por lo que hay que ir a la direccion crmondemand.xml.<i>tipo</i>.query.QueryType
crmondemand.xml.account.query.QueryType qt = new QueryType();
//Definimos el valor del query
qt.setValue("LIKE 'Ivan*'");
//Llamamos los parametros de cada query para definir los campos de busqueda
queryCuenta.setAccountName(qt);
* queryCuenta.setAccountType(qt);
* queryCuenta.setCreatedBy(qt2);
* etc etc
//agregamos a ListOfAccountQuery los parametros de busqueda
crmondemand.xml.account.query.ListOfAccountQuery laqlaq = new ListOfAccountQuery();
laqlaq.setAccount(queryCuenta);
laqlaq.setPagesize(new BigInteger("20"));
AccountQueryPageInput aqpi = new AccountQueryPageInput();
* Generamos los objetos que reciben el parametro de busqueda y que regresan el resultado.
URL wsURL, wsURL2 = null;
//I can create the connection np.
Conexion conecta = new Conexion();
String jSessionId = conecta.conectaSiebel();
String wsLocation = "https://secure-ausomxcia.crmondemand.com/Services/Integration";
try {
wsURL = new URL(wsLocation + ";jsessionid=" + jSessionId);
wsURL2 = new URL(wsURL, "file:/C:/Some/Dir/Account.wsdl");
} catch (MalformedURLException ex) {
Logger.getLogger(AccountWS.class.getName()).log(Level.SEVERE, null, ex);
Account_Service as = new Account_Service(wsURL2, new QName("urn:crmondemand/ws/ecbs/account/10/2004", "Account"));
Account cuenta = as.getAccount();
AccountQueryPageOutput aqpo = new AccountQueryPageOutput();
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aqpi.setViewMode("Manager");
aqpi.setListOfAccount(laqlaq);
aqpi.setBookId("");
aqpi.setBookName("");
aqpi.setLOVLanguageMode("");
//Obtenemos el resultado en un objeto de tipo AccounQueryPageOutput
aqpo = cuenta.accountQueryPage(aqpi); //The execution stops on this line.
//Wrapper de una lista de AccountData objects
// crmondemand.xml.account.data.ListOfAccountData lad = aqpo.getListOfAccount();
//Estructura de datos que contiene cada AccountData object
// List<AccountData> listaDeResultados = lad.getAccount();
//Aqui recorremos la lista de objetos de tipo AccountData
// for (AccountData accountData : listaDeResultados) {
// accountData.getAccountName(); //Devuelven Strings y tipos basicos.
Any suggestions really appreciated : )
Edited by: user10957396 on Apr 28, 2009 1:01 PM
Edited by: user10957396 on May 25, 2009 8:55 AM

Thanxs for your reply Venky. You was right, i had to use wsdl instead of wsdl2, but that didn't fix it.
Since i'm using release 16 i'm kinda lost, even that i think you guys did an amazing job with the new Web Services api(v2.0).
Correct me if i'm wrong but i should use a code like this:
endpoint = "https://secure-ausomxdsa.crmondemand.com/Services/Integration" + ";jsessionid=" + jsessionid;
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crmondemand.ws.contact.ContactWS_ContactQueryPage_Output outlist = new crmondemand.ws.contact.ContactWS_ContactQueryPage_Output();
crmondemand.xml.contact.Contact[] contacts = new crmondemand.xml.contact.Contact[1];
crmondemand.xml.contact.Contact contact = new crmondemand.xml.contact.Contact();
crmondemand.xml.contact.Activity[] activities = new crmondemand.xml.contact.Activity[1];
crmondemand.xml.contact.Activity activity = new crmondemand.xml.contact.Activity();
activity.setSubject("");
activity.setType("");
activity.setRowStatusOld("");
activities[0] = activity;
contact.setContactLastName("='Wallmueller'");
contact.setContactFirstName("");
contact.setContactId("");
contact.setListOfActivity(activities);
contacts[0] = contact;
contactlist.setPageSize("10");
contactlist.setUseChildAnd("false");
contactlist.setStartRowNum("0");
contactlist.setListOfContact(contacts);
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crmondemand.xml.contact.Contact[] results =
new crmondemand.xml.contact.Contact[1];
results = outlist.getListOfContact();
crmondemand.xml.contact.Activity[] activitiesout =
new crmondemand.xml.contact.Activity[1];
int lenC = results.length;
if (lenC > 0) {
for (int i = 0; i < lenC; i++) {
System.out.println(results.getContactFirstName());
System.out.println(results[i].getContactLastName());
System.out.println(results[i].getContactId());
int lenA = results[i].getListOfActivity().length;
if (lenA > 0) {
for (int j = 0; j < lenA; j++) {
activitiesout = results[i].getListOfActivity();
System.out.println(" " + activitiesout[j].getSubject() + ", " + activitiesout[j].getType());
that i found here [http://www.webbasedcrmsoftware.com.au/crm-on-demand-tutorials/65-java-access-to-crm-on-demand|http://www.webbasedcrmsoftware.com.au/crm-on-demand-tutorials/65-java-access-to-crm-on-demand]
for the release 15. Wich is almost the same code i'm using for the new release besides lists(that now are actually lists) and i think i don't need to use any bindings.
In particular for Account i found that only the name is a required field, so i'm just using that field for the query.
Thanks in advance.

Put a Query in an Authorization Object

Hi everyone
Is there any way to set a query as an authorization object value?
Best regards,
Luis Elizondo

Hi,
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Let us know for any query you have.
Regards,
Dipanjan

How to call a TopLink Query on ADF Page Load (onload)

Hi,
I am new to ADF wants to find out how to call a TopLink Query whenever a page loads. I saw SRDemo Sample but all the queries are bound to some kind of an action method i.e. clicking on a button executes a query etc. But I need to call a toplink query on my page load. Any small sample will help.
Thanks

Try this approach:
http://blogs.oracle.com/shay/2007/07/25

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You can't query on a blob column.

How do I stop IN CLAUSE when query a hierarchy of object.

I have a base class which is annotated with
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@Table(name="UDM_HIERARCHIES")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
public class UdmHierarchyObject ...
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order by d.value"
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SELECT t1.ID, t1.JPA_DISC, t1.OBJECT_NAME, t1.OBJECT_TYPE, t1.UPDATED_ON, t2.ID, t2.HIERARCHY_NAME, t2.PARENT_ID, t2.REFERENCE_ID FROM UDM_DATA t0, UDM_HIERARCHIES t2, UDM_OBJECTS t1 WHERE (((((t2.HIERARCHY_NAME = ?) AND (t0.DATA_NAME = ?)) AND (t2.ID = t1.ID)) AND (t1.JPA_DISC IN (?, ?))) AND (t0.OWNER_ID = t1.ID)) ORDER BY t0.DATA_VALUE ASC
bind => [StateCode, Code, Lookup, EventTypeCode]
The actual query is fine, however I don't always need the t1.JPA_DISC IN (?, ?) part because I am providing sufficient filtering.
Is there a way to suppress this in the query, or should I not be bothered with a large IN CLAUSE?
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The issue is you are querying a branch class, so only the children of this branch must be filtered. Unless you are noticing real performance issues with the IN, I would not worry about it too much.
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-- James : http://www.eclipselink.org

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Thanks
Newbie

A shared (L2) cache is enabled by default in TopLink/EclipseLink.
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http://wiki.eclipse.org/EclipseLink/Examples/JPA/Caching

Toplink does not return the object sometimes - VeryHigh Volume application

Hi All,
Toplink version: 10.1.3.4, OAS 10.1.3.4, Oracle 10g, RedHat linux 4.0
We have a high volume application where toplink issues one of our queries like 25K times/hour.Query is a simple one querying the table based on the primary key(Id) that should return 1 object.
This query is not returning the object sometimes I should say like 200 times/hour. What bothers me is that the same query on the same Id(primary-key) returns the object another time.
I did enable the toplink logging level to FINE where I could see the SQL query getting issued to the DB, I was unsuccessful in changing the logging level to ALL to check if the object is getting returned by the toplink layer and being registered in the cache kind of details.
This is not easily re-producable as this only occurs in our Pre-Prod environment where we can simulate high volume. This completely baffles me and I am running out of ideas.
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Edited by: Raam on Jun 4, 2009 7:41 PM

If you are configured for an isolated cache then there should be no concurrency issues. Each thread will query the database directly and load the object into the UnitOfWork. Is there an Exception handler configured on TopLink? Are you getting a timeout exception or some other exception that is being ignored?
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Hi,
I have a n-m relationship between two objects A and B. I want to query all A objects that do not have a B (a.getB().isEmpty()). Is there a way to build an expression for that ?
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Bye.

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=====================
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Passing an argument in the SQL Query of a View Object

Hi,
It is possible that this question has been asked before, however I have searched for a half an hour in the forums and couldn't find a solution.
I am also new to using JDeveloper and ADF. Here's the situation:
I am developing an application that doesn't have to do anything else then displaying data from a database. Pretty straightforward actually.
Now I have made a vew pages with several collapsible panels (af:showDetailHeader) and have setup the datasources (or so I thought).
All that remains is:
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- hack the layout so it looks like I want it to.
The problem that I have is the following:
I am using a 'User'-class that contains values I need when quering the database.
That User-object is part of a user-session.
What I want, for example, is to use the 'getPersonId()' function of that User-object and pass the argument to a SQL-query of a certain view-object.
The query would become something like:
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The examples I have found that might match my wishes are not using business components, but EJB's. I am having difficulty with understanding the 'how'-part of variable binding.
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(meaning, that for panel1 a query has been executed.)
'User clicks on collapsible panel 2 which triggers a backingbean that somehow retrieves data from a view object'.
I would appreciate any help that somebody can give.
If it is not too much of a problem, please provide code snippets in case you have a solution. I am new to ADF :(.
-edit
I am using JDeveloper 10.1.3.3.0 in case that is of any importance.
Message was edited by:
Hugo Boog

Hello Stijn,
I didn't think about a referenced bean rule in the faces-config.
I added it right away and I am now able to set parameters of a View-object, not using a page button and before the page loads. You made my day!
In case anyone ever reads this post again, the summary of how to generate a table based on a View-object using dynamic parameters.:
1a: Go to faces-config.xml -> Overview tab'
1b: Go to the menuitem "Referenced Beans"
1c: Click on 'new' and select the existing bean you want to access data from and input a name. In this example I use name="user"
2: Create a View-object using the wizard.
2a: Specify the query you want in the menuitem 'SQL Statement'.
Add the 'parameters' you want to. You will have something like:
"SELECT * FROM someTable WHERE table.columnname LIKE :someArgument".
- hint: if you want the result to become something like:
"SELECT * FROM someTable WHERE table.columnname LIKE '%someArgument%'" then you have to add the '%'-characters in your code itself (read: someClass.setParameter("%" + someArgument);).
2b: In the menuitem 'Bind Variables' you have to add the variables you are referring to in the query. If you look at the query in 2a, then you have to add a variable with name "someArgument".
2c: Add the View-object to a Application Module (create one if nessecairy).
3a: Open a .jsp(x) file. Drag the View-object created in step 2 from the 'Data Controls'-pane to the page.
3b: Click on the '+' of the View-object in the 'Data Controls'-pane and open 'Operations' and drag 'ExecuteWithParams' to your page as a button.
3c: We do not want to use a button, the action has to be executed immediatly. So In the page source remove the lines that were created after dropping 'ExecuteWithParams'.
3d: Right-click on the page and select "Go to Page Definition".
3e: Go to the action id that is called 'ExecuteWithParams#', where # is a number.
Change the id to something useful.
3f: Change the NDValue so it corresponds with the value you want.
Example:
<action id="getAddressData" IterBinding="AddressesView1Iterator"
InstanceName="MyHRServiceModuleDataControl.AddressView1"
DataControl="MyHRServiceModuleDataControl" RequiresUpdateModel="true" Action="95">
<NamedData NDName="someArgument" NDType="java.lang.String"
NDValue="#{user.personId}"/>
</action>
Note: It is possible to use the value of a Backing Bean in NDValue.
Note 2: user is the bean I referred to in the faces-config.xml!
3g: Under the executables item, add an 'invokeAction' to pass the parameter to the View-object before your JSP-file loads:
<executables>
<invokeAction Binds="getAddressData"
id="loadAddressDataOfPersonIdInSession"
Refresh="prepareModel"/>
Thank Stijn Haus for this :)

Query on using Collection object in Multithreading

All,
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But i have places where I still hold synchronized locks over those objects (which i think is unnecessary and removing the locks may improve the performance)
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TOPLINK QUERY - N to N objects

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