Have an object as return type in a method in the WebDynproComponent

Hello together.
I've wrote an EJB in which is a method that read out a DB Table XYZ. In this EJB also are methods to search a single entry.
In my WebDynpro applixcation i have a method in the Component that access the EJB and retrive the single entry for example. In the View implemantation i call the method from the "WEbDynPro component" which have a string as return type.
Is it possible to have an object as return type?
public java.lang.String sr( int KVNR )
    //@@begin sr()
    KVNummerDTO kvnrObject = new KVNummerDTO();
    String Kasse = "";
      try
          KVNRSessionLocal kVNummerSessionLocal = kVNRSessionLocalHome.create();
          kvnrObject = kVNummerSessionLocal.getKVNummer(KVNR);
          Kasse = kvnrObject.getKasse();
      catch (Exception e)
           e.printStackTrace();
           wdComponentAPI.getMessageManager().reportException(e.getMessage(), true);
      return Kasse;
    //@@end
I want to return kvnrObject and not only a string!

Hello Micheal,
While Creating a method in front of the return type click on the browse and select Java Native Type Radio Button and again click on the browse button available there. Type the name of the class in the class in it and you can select the return type. If it is a user made class then first the required Java files under the path Resources>src>packages><create a folder>java file. Then build the project so that the class name is visible in list while selecting the return type.
Regards,
Ardhendu

Similar Messages

PLS-00630: pipelined functions must have a supported collection return type

Hello, I created an TYPE of OBJECT and a PLSQL Function as shown below, but the function compilation errors with following. Not sure where is the issue?
PLS-00630: pipelined functions must have a supported collection return typeThis is on Oracle 10g r2
CREATE OR REPLACE TYPE cxs_plsql_profiler_object_type AS OBJECT (
 cxs_object_name VARCHAR2 (128),
 cxs_object_type VARCHAR2 (19),
 cxs_object_status VARCHAR2 (7),
 cxs_read_execution NUMBER,
 cxs_buffer_gets NUMBER,
 cxs_disk_reads NUMBER,
 cxs_executions NUMBER,
 cxs_sorts NUMBER,
 cxs_sharable_mem NUMBER,
 cxs_address NUMBER,
 cxs_hashvalue NUMBER,
 cxs_osuser VARCHAR2 (30),
 cxs_username VARCHAR2 (30),
 cxs_module VARCHAR2 (48),
 cxs_machine VARCHAR2 (64),
 cxs_status VARCHAR2 (8),
 cxs_terminal VARCHAR2 (16),
 cxs_percentconsume NUMBER,
 cxs_percentrepeat NUMBER,
 cxs_plan VARCHAR2 (120),
 target_name VARCHAR2 (200),
 referenced_name VARCHAR2 (200),
 referenced_type VARCHAR2 (200),
 targetowner VARCHAR2 (200),
 refowner VARCHAR2 (200)
)and here is the API
 FUNCTION CXS_GENERATE_PLSQL_PROFILER
RETURN cxs_plsql_profiler_object_type
PIPELINED IS
out_rec cxs_plsql_profiler_object_type ;
plsbatch plsql_batch;
skount integer;
dpendrec depend_tab;
dkount integer;
CURSOR objects
 IS
 SELECT object_name, object_type
 FROM dba_objects
 WHERE status = 'VALID'
 AND owner NOT IN ('SYS', 'SYSTEM')
 AND object_type IN ('PACKAGE', 'PROCEDURE', 'FUNCTION');
 CURSOR apis (p_object dba_objects.object_name%TYPE)
 IS
 SELECT DISTINCT *
 FROM (SELECT SUBSTR (a.sql_text, 1, 50) sql_text,
 TRUNC
 ( a.disk_reads
 / DECODE (a.executions,
 0, 1,
 a.executions
 ) reads_per_execution,
 a.buffer_gets, a.disk_reads, a.executions,
 a.sorts, a.sharable_mem, a.address,
 a.hash_value, b.osuser, b.username,
 b.module, b.machine, b.status, b.terminal,
 ROUND
 (cxs_db_info.kompute_percentofsql
 (a.sharable_mem),
 5
 ) percentkonsume,
 cxs_db_info.kount_repeat
 (b.osuser,
 b.terminal
 ) percentr,
 c.operation explainplan
 FROM v$sqlarea a, v$session b, v$sql_plan c
 WHERE b.sql_hash_value = a.hash_value
 AND b.sql_address = a.address
 AND a.hash_value = c.hash_value
 AND a.address = c.address
 AND b.status = 'ACTIVE'
 AND UPPER (a.sql_text) LIKE
 '%' || p_object || '%'
 AND c.ID = 0
 ORDER BY 2 DESC)
 WHERE ROWNUM <= 50; --profile option
BEGIN
skount := 0;
dkount := 0;
FOR i IN objects
 LOOP
 FOR j IN apis (i.object_name)
 LOOP
 skount := skount + 1;
 plsbatch(skount).cxs_object_name := i.object_name;
 plsbatch(skount).cxs_object_type := i.object_type;
 plsbatch(skount).cxs_object_status := i.object_status;
 plsbatch(skount).cxs_read_execution := j.reads_per_execution;
 plsbatch(skount).cxs_buffer_gets := j.buffer_gets;
 plsbatch(skount).cxs_disk_reads := j.disk_reads;
 plsbatch(skount).cxs_executions := j.executions;
 plsbatch(skount).cxs_sorts := j.sorts;
 plsbatch(skount).cxs_sharable_mem := j.sharable_mem;
 plsbatch(skount).cxs_address := j.address;
 plsbatch(skount).cxs_hashvalue := j.hashvalue;
 plsbatch(skount).cxs_osuser := j.osuser;
 plsbatch(skount).cxs_username := j.username;
 plsbatch(skount).cxs_module := j.module;
 plsbatch(skount).cxs_machine := j.machine;
 plsbatch(skount).cxs_status := j.status;
 plsbatch(skount).cxs_terminal := j.terminal;
 plsbatch(skount).cxs_percentconsume := j.percentconsume;
 plsbatch(skount).cxs_percentrepeat := j.percentrepeat;
 plsbatch(skount).cxs_plan := j.explainplan;
 END LOOP;
 FOR dd IN dpend (i.object_name)
 LOOP
 dkount := dkount + 1;
 dependrec (dkount).target_name := dd.NAME;
 dependrec (dkount).refname := dd.referenced_name;
 dependrec (dkount).reftype := dd.referenced_type;
 dependrec (dkount).target_owner := dd.owner;
 dependrec (dkount).refowner := dd.referenced_owner;
 END LOOP;
 END LOOP;
for a in 1..skount loop
 out_rec.cxs_object_type := plsbatch(a).object_type;
 out_rec.cxs_object_status := plsbatch(a).object_status;
 out_rec.cxs_read_execution := plsbatch(a).reads_per_execution;
 out_rec.cxs_buffer_gets := plsbatch(a).buffer_gets;
 out_rec.cxs_disk_reads := plsbatch(a).disk_reads;
 out_rec.cxs_executions := plsbatch(a).executions;
 out_rec.cxs_sorts := plsbatch(a).sorts;
 out_rec.cxs_sharable_mem := plsbatch(a).sharable_mem;
 out_rec.cxs_address := plsbatch(a).address;
 out_rec.cxs_hashvalue := plsbatch(a).hashvalue;
 out_rec.cxs_osuser := plsbatch(a).osuser;
 out_rec.cxs_username := plsbatch(a).username;
 out_rec.cxs_module := plsbatch(a).module;
 out_rec.cxs_machine := plsbatch(a).machine;
 out_rec.cxs_status := plsbatch(a).status;
 out_rec.cxs_terminal := plsbatch(a).terminal;
 out_rec.cxs_percentconsume := plsbatch(a).percentconsume;
 out_rec.cxs_percentrepeat := plsbatch(a).percentrepeat;
 out_rec.cxs_plan := plsbatch(a).explainplan;
 PIPE ROW(out_rec);
end loop;
for b in 1..dkount loop
 out_rec.target_name := dd.NAME;
 out_rec.refname := dependrec (b).referenced_name;
 out_rec.reftype := dependrec (b).referenced_type;
 out_rec.target_owner := dependrec (b).owner;
 out_rec.refowner := dependrec (b).referenced_owner;
 PIPE ROW(out_rec);
end loop;
RETURN;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.format_error_backtrace);
DBMS_OUTPUT.PUT_LINE(SQLCODE);
DBMS_OUTPUT.PUT_LINE(SQLERRM);
END; and below are tradtional table types that are used in code above.
TYPE type_plsql_rec IS RECORD (
 cxs_object_name VARCHAR2 (128),
 cxs_object_type VARCHAR2 (19),
 cxs_object_status VARCHAR2 (7),
 cxs_read_execution NUMBER,
 cxs_buffer_gets NUMBER,
 cxs_disk_reads NUMBER,
 cxs_executions NUMBER,
 cxs_sorts NUMBER,
 cxs_sharable_mem NUMBER,
 cxs_address NUMBER,
 cxs_hashvalue NUMBER,
 cxs_osuser VARCHAR2 (30),
 cxs_username VARCHAR2 (30),
 cxs_module VARCHAR2 (48),
 cxs_machine VARCHAR2 (64),
 cxs_status VARCHAR2 (8),
 cxs_terminal VARCHAR2 (16),
 cxs_percentconsume NUMBER,
 cxs_percentrepeat NUMBER,
 cxs_plan VARCHAR2 (120)
 TYPE plsql_batch IS TABLE OF type_plsql_rec
 INDEX BY BINARY_INTEGER;
 TYPE type_depend_tab IS RECORD (
 target_name dba_dependencies.NAME%TYPE,
 refname dba_dependencies.referenced_name%TYPE,
 reftype dba_dependencies.referenced_type%TYPE,
 target_owner dba_dependencies.owner%TYPE,
 refowner dba_dependencies.referenced_owner%TYPE
 TYPE depend_tab IS TABLE OF type_depend_tab
 INDEX BY BINARY_INTEGER;
Thank you for your time in reading this post
R

Thank you Billy and Saubhik,
I have followed your guidelines and was able to resolve this error. Now, after successfully compiling the code, I attempted to execute it in a following way.
SELECT * FROM TABLE (cxs_generate_plsql_profiler);It gives following error: ORA-00904: "CXS_GENERATE_PLSQL_PROFILER": invalid identifier
I also tried putting in quotes like below
SELECT * FROM TABLE ('cxs_generate_plsql_profiler');Then, it gives following error:
ORA-22905: cannot access rows from a non-nested table item
Any Idea where I am doing wrong?
Thanks,
R

I have an Object of unknown type. How to run it's method?

I have an Object, I dont't know it's type, and I want to run method, the name of which I know.
How can I do this?
Please help.
Thank you!

I have an Object, I dont't know it's type, and I want
to run method, the name of which I know.
How can I do this?
Please help.
Thank you!Checkout reflection package, which just does the magic.
Basically, the codes are like this:
public void invoke(Object obj, String methodName) throws Exception {
Class cls = obj.getClass();
java.lang.reflect.Method mth = cls.getMethod(methodName, cls.getClasses());
mth.invoke(obj, null); // if the method has no argument, otherwise, you'll have to provide all arguments instead of null.
}quite simple!

Java object as return type?

hi,
I have one idl interface like this:
interface Konto
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but the last method raises an error. I understand why, PropertyChangeListener is a Datatype, which doesnt exist. But how can in solve this problem? exist in IDL something like "import" or similar, so that he can find the datatype in the java class library?
thank you
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You can only use IDL types in an IDL definition. Is PropertyChangeListener defined in IDL somewhere or is it only defined in Java?

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Guideline for deciding method return type

Hi All,
I have some concerns in deciding the return type of some specific methods in the application (web service application to be specific).
Concern: There are methods like 'deleteData', 'cancelProcess', 'uploadData' etc. Ideally these methods don't require server to perform complex business logic. Now there are 2 views to decide the return type of these methods. The first approach could be to return a boolean indicating whether the operation is successful or not and the other apporach is to return void but throw an exception if anything goes wrong.
Both approaches have their own advantages and drawbacks. Sending a boolean seems to be cleaner but in case of unsuccess caller won't get the exact exception but just a flag. In second apporach, the caller has to rely on try/catch to decide the logical flow.
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Thanks and Regards,
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If there is a legitimate reason why your method might not actually do what it should, then use the boolean return value.
Example: someList.remove("foo") will return false if "foo" is not actually in the list (because remove() simply specifies that it will make sure that the element is not in the list after the call. Since this is fulfilled in this case, there's no case to throw an exception, even if it didn't actually remove anything).
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Should Collections be used as return types across threads?

I am wondering when, if ever, it is appropriate to use a Collection as the return type of a method in a multi-threaded environment. Here is our situation:
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The WidgetManager class that uses a Collection of Widgets internally, and passes the Collection (or an Iterator over it) out as a return value of a method to ClientA, which is running in another thread. ClientA would start to go through it using next() and hasNext() of the Iterator. If the WidgetManager were to get a request from ClientB running in another thread to eliminate a Widget, it would attempt to remove it from the Collection. If ClientA were still looping through the Iterator, this would throw an IllegalStateException b/c the system would be in an inconsistent state. The Iterator given to the ClientA is directly linked to the actual Collection in the WidgetManager (am I right so far?).
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Thanks for any help.
Keith

I haven't tested what happens when you synchronize the
Collection, but I think that you are right. But this
causes the problem that I mentioned in the first post.
That is, what happens if your client STARTS running
through the Iterator, and then stops or gets hung up
for some reason? I assume that you're still blocked.
And it's pretty important to me in this case to not
t be blocked -- WidgetManager is the highest level
class in the system.
I'd like to know if anyone has tested this.
The Iterator implementations used in java.util do not use any synchronization by itself, (which is what you would expect since synchronization over multiple method call will involve much more complications and slower performance) . With iterator, you have to provide the necessary synchronization yourself to maintain thread-safety like this
Iterator itr = get Iterator from collectionInstance ;
synchronized(collectionInstance) {
while(itr.hasNext())
process itr.next() ...
As long as your client code gracefully exits the synchronized block on a stop( or hangup, given that it is detected and handled fast enough), it will not be a problem.
Also, I'd like an example of when you WOULD want to
return a Collection. I'm specifically interested in
when you would want to return one in a multi-threaded
environment, but I'm beginning to wonder when you
would EVER want to return one from a method.
Collections are great for internal uses, but you lose
type-checking and you expose the internals of your
class to modification when you use them as return
types. And if you're returning a read-only
Collection, you might as well return an array, right?Using a read-only proxy will be much faster and space-efficient than toArray().

DatabaseProcedure with return type prefixed with schema name

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When I want to call a database function/procedure I need to add the schema name as a prefix to the custom database object that we uses for parameters/return types.
So far so good. I can also define a parameter prefixed with schema name via the DatabaseProcedure.registerArrayType ...
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Edited by: Zonic on 2013-05-07 10:52

Hi Torben,
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DatabaseProcedure dp = DatabaseProcedure.define("procedure my.procedure(param1 in out anyNameWithoutDots)");
DatabaseProcedure.ParamType type = dp.getParamDef(0).getType();
System.out.println(type.getName() + " is " + type.getTypeName()); // ANYNAMEWITHOUTDOTS is NAME.WITH.DOTSThis way you don't have to use the "illegal" name in the DatabaseProcedure definition.
Regards,
Paco van der Linden

"Primitive Type Returned", when I try to configure the data return type.

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Hi,
Thanks for your feedback!
The server code here means the ColdFusion code provided in the tutorial.
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http://balajisridhar.wordpress.com

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Hi
I am trying to access the annoation information on a class using reflection. I can't find any way to get access to an annotation on the return type of a method. For example the code below complies however there is no method on the "java.lang.reflect.Method" class (that I can see) that gives me access to the annoation.
Could someone point me to something I may have misses.
example:
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@Retention(value=RetentionPolicy.RUNTIME)
@Target(value=ElementType.ANNOTATION_TYPE)
public @interface MyAnnotation {
String value();
public class TestClass {
public static @MyAnnotation("hello")void myMethod() {
Thank
Raymond McCrae

The annotation isn't on the return type, it is on the method.
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Same functions with different return types in C++

Normally the following two functions would be considered the same:
int getdata ( char *s, int i )
long getdata ( char *s, int i )
Every other compiler we use would resolve both of these to the same function. In fact, it is not valid C++ code otherwise.
We include some 3rd party source in our build which sometimes messes with our typedefs causing this to happen. We have accounted for all of the function input types but never had a problem with the return types. I just installed Sun ONE Studio 8, Compiler Collection and it is generating two symbols in our libraries every time this occurs.
Is there a compiler flag I can use to stop it from doing this? I've got over 100 unresolved symbols and I'd rather not go and fix all of them if there is an easier way.

Normally the following two functions would be
considered the same:
int getdata ( char *s, int i )
long getdata ( char *s, int i )Not at all. Types int and long are different types, even if they are implemented the same way.
Reference: C++ Standard, section 3.9.1 paragraph 10.
For example, you can define two functions
void foo(int);
void foo(long);
and they are distinct functions. The function that gets called depends on function overload resolution at the point of the call.
Overloaded functions must differ in the number or the type of at least one parameter. They cannot differ only in the return type. A program that declares or defines two functions that differ only in their return types is invalid and has undefined behavior. Reference: C++ Standard section 13.1, paragraph 2.
The usual way to implement overloaded functions is to encode the scope and the parameter types, and maybe the return type, and attach the encoding to the function name. This technique is known as "name mangling". The compiler generates the same mangled name for the declaration and definition of a given function, and different mangled names for different functions. The linker matches up the mangled names, and can tell you when no definition matches a reference.
Some compilers choose not to include the return type in the mangled name of a function. In that case, the declaration
int foo(char*);
will match the definition
long foo(char*) { ... }
But it will also match the definitions
myClass foo(char*) { ... }
double foo(char*) { ... }
You are unlikely to get good results from such a mismatch. For that reason, and because a pointer-to-function must encode the function return type, Sun C++ always encodes the function return type in the mangled name. (That is, we simplify things by not using different encodings for the same function type.)
If you built your code for a 64-bit platform, it would presumably link using your other compilers, but would fail in mysterious ways at run time. With the Sun compiler, you can't get into that mess.
To make your program valid, you will have to ensure your function declarations match their definitions.

Stub generated in Jdev9i for webservice with 'Vector' return type

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import org.apache.soap.encoding.SOAPMappingRegistry;
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import org.w3c.dom.Element;
import java.net.URL;
import org.apache.soap.Body;
import org.apache.soap.Envelope;
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public static void main(String[] args)
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    catch(Exception ex)
      ex.printStackTrace();
public String endpoint = "http://XXXXXX:8000/sap/xi/...../RegConsComplaint_OB";
private OracleSOAPHTTPConnection m_httpConnection = null;
private SOAPMappingRegistry m_smr = null;
public Vector RegConsComplaint_OB(Element requestElem) throws Exception
    URL endpointURL = new URL(endpoint);
    Envelope requestEnv = new Envelope();
    Body requestBody = new Body();
    Vector requestBodyEntries = new Vector();
    requestBodyEntries.addElement(requestElem);
    requestBody.setBodyEntries(requestBodyEntries);
    requestEnv.setBody(requestBody);
    Message msg = new Message();
    msg.setSOAPTransport(m_httpConnection);
    msg.send(endpointURL, "http://sap.com/xi/WebService/soap1.1", requestEnv);
    Envelope responseEnv = msg.receiveEnvelope();
    Body responseBody = responseEnv.getBody();
    return responseBody.getBodyEntries();
}I am wondering whether I will be able to use this stub generated by Jdeveloper since the input type is 'Element' and return type is 'Vector'; while in the Jdeveloper documentation the supported "primitive XML Schema types and arrays of primitive XML Schema types as parameters and return values for web services" do not include either of the two.
Regards,
Sujoy

Hi Sujoy
I have been having big problems consuming microsoft sharepoint webservices using jDeveloper 9i.
Problems with jdk version compatability with jDev and NTLM authentication (Sharepoint).
so switching to db connection using utl_http.
Can you pls send me the code set for reference at [email protected]
thanks.
Regards
Sachin

CONSIGNMENT RETURN - TYPE YBKR

Dear Expert
I am a fresher to SAP JOB and my customer is having issue mentioned below. Can anyone help me to analyse the issue and solve the error.
Customer wrote to me:
I had to do a customer credit against a YBKB Consignment Fill up order,
but instead of just doing the YBKR Return which credits the customer and
returns the product to stock for the Return PO for the Vendor credit, I
also incorrectly done a YBKA Consignment Pickup? I think I just need to
Delete the Consignment Pickup order (YBKA), delivery document, and the
goods issue material document. This would just leave the correct Return
Type YBKR active which credited the customer. Do I have this correct?
If so, I can delete the Consignment Pickup order (YBKA) and the Returns
Delivery Document, but who will have to delete the Goods Issue Material
Document against this order? I have never done this???
Consignment Pickup Order# 60000184
Returns Delivery# 84001007
GI Consignment Return Delivery Document# 4900014847
Thanks and Regards
M.Dheerendar Jain

I think I just need to
Delete the Consignment Pickup order (YBKA),
delivery document, and the
goods issue material document.
FOR the Consignment Pickup -
1) Either, You can reverse the PGR in VL09 and then delete the delivery and the CP order
2) or create a CF order, for the amount in the CP order. So that the consignment warehouse again has the correct stock.

Have an object as return type in a method in the WebDynproComponent

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