Reg:Performence Issue in Web Dynpro for Java.
Hi All,
I have used an so many RFC's(approx 50)RFC's as models in my web dynpro applications and i have called an RFC to fill the EVS which is present in my home view and the problem is RFC holds around 7000 records because of this my application is very slow down to load my View.So can any one provide me a solution how to increase the performence of loading my application.
Version of my NWDS is :2.0.19
Regards,
Mahesh Gupta Nuli.
How you are calling the RFC's in your webdynpro.
don't load any RFC until it is required.
Generally people call all the RFC's at a time even though they are not required at that point of time.
There is nothing to do with portal. you need to optimize your webdynpro code.
Better post your query in WEbdynrpo java forum to get best answers.
Raghu
Similar Messages
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Reg:Locking in Web Dynpro for JAVA.
Hi All,
When a user logged in the front end i am calling the lock function module(based on this locking mechanism is working) and when a user logged out i am calling the unlock function module(now the locked mechanism is getting unlocked).
now my problem is when a user closes the window abruptly without loging out,the unloeck mechanism should work at that particular instance.Please suggest me if this is possible or not in web dynpro for java.
Thanks,
Mahesh Nuli.Hi,
I will give you two different solutions, use whatever you think fits best for you.
First One:
Whenever you call your "LOCK" function module, do not disconnect the ModelInstance. Create a Locking method in Java which returns a "com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModelClassExecutable" instance. It should look like this:
InputClass inputInstance..
node.bind(inputInstance);
inputInstance.execute();
if fails, return null;
otherwise, return your inputInstance;
Keep this inputInstance into some Context Attribute. Whenever you wanna "Unlock", you can disconnect this input from the backend system.
InputClass inputInstance = wdContext.getInputInstance();
inputInstance.modelInstance().disconnectIfAlive();
This will work for all the cases you are currently having problem. However, this solution holds one connection.
Second One:
Assuming your transaction runs in one View, you can set this View lifecyle to "when_visible" - Doing that, whenever you navigate "away" from this View the method wdDoExit of that ViewController will be executed.
In this appoach, you dont need to store any "InputClass" - You can perform your Lock and disconnect from the backend. In your wdDoExit method you can code a "Disconnect If Connected" method.
Use whatever fits best.
Regards,
Daniel -
hello all,
i am new to web dynpro for java.i have already done an application
"Creating a Web Dynpro Application Accessing ABAP Functions" this application
have good document on sdn.
this application is working fine .
Now i got an requiremnt for creating a purchase order in web dynpro for java.
in normal report when i call the bapi the parameter are the header, headerx,item, itemx is an internal table.
CALL FUNCTION 'BAPI_PO_CREATE1'
EXPORTING
POHEADER = HEADER
POHEADERX = HEADERX
POADDRVENDOR =
TESTRUN =
IMPORTING
EXPPURCHASEORDER =
EXPHEADER =
EXPPOEXPIMPHEADER =
TABLES
RETURN = RETURN
POITEM = ITEM
POITEMX = ITEMX.
i just want to know how can i fill these internal table in web dynpro
for java to create an application accessing "Bapi_po_create" .
ThanksHi Gopal,
I'm not sure what is your issue, it seems you're not really understanding how the Model structure works in WDP.
I'll assume few things here, like you know how to Import the Model into the WDP, and you know a little bit about what Java Classes will represent this Model in the Project.
Try these steps:
1. Import your Model into the Project;
2. Open your Component Modeler, create a Data Link between your Model / Component (Or Custom Controller, as you prefer)
- You can also use the "Apply Template -> Service Controler"
3. Map the Input of your Model as the Main Node, check the Input Tables (you prob. will have two, POITEM = ITEM - POITEMX = ITEMX)
4. Also, check the Return box, since this is BAPI return (You can use to display Backend messages)
Now you have the Model mapped into your Controller, you need to develop the Java function to execute it.
1. Create a new Input class, like
BAPI_PO_CREATE1_Input purchaseOrderCreateInput = new BAPI_PO_CREATE1_Input();
2. Bind your Input Node, in the Controller, with your Input Class;
wdContext.nodeBAPI_PO_CREATE1().bind(purchaseOrderCreateInput);
3. Set any Import parameters you need:
purchaseOrderCreateInput.setEXPPURCHASEORDER(XXXX);
4. To Add references to the Table, you will perform something like:
First, you need to know what "Structure" you need to add (POItem Structure) - You have a Java class that represents that Structure..
POITEM_Element poItemElement = new POITEM_Element();
poItemElement.setPROPERTY(); /// Set your Properties
purchaseOrderCreateInput.getPOITEM().add(poItemElement);
5. Execute your Input,
purchaseOrderCreateInput .execute();
Hope it helps,
Regards,
Daniel -
Design header in Web Dynpro for java
Dear experts
I used PageHeader UI Element for design header in web dynpro for java. How to insert a image and set padding logo in page header?
Ex : Create a SAP header includes the content as SAP logo, application title, functions, user name, logout button.
Thanks.Hi,
I couldn't understand your requirement for keeping an image in page header but i suggest you not to do so, because it is not a good practice and creates a performance issue. Page header UI element is not much customizable for same purpose and should not contain interactive UI elements according to [UI Element Guide|http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b06c8c9a-19a4-2b10-d985-9ae7a4383478]. You can also refer to the same document for the usage of the Page header and other UI Elements its a very useful and nice article.
Regards
Jeetendra -
How to develop Web Dynpro for Java and run it locally
I want to learn Web Dynpro for Java but still struggling with the running it locally in my PC. What software do I need to install in my own PC in order to do that? I have NWDS in place and I can write the code and compile it already. Thanks!
Hi Anthony,
You need to have SAP Web Application server (SAP WAS) to run all the webdynpro applications. WAS can be installed either on your local system or on a server which can act as a central server.
You can download WAS from SDN, which is a trial version. Check this link.
http://www.sdn.sap.com/irj/scn/nw-downloads
For checking the minimul system requirments for installing WAS please check the PAM (Product Availability Matrix).
I hope this solves you issue. Please revert back in case you need any further information on this.
Thanks and Regards
Pravesh -
Overlapping labels in Scatter Graph - Web Dynpro for Java
Hi
We have created a Scatter Graph in Web Dynpro for Java.
The xValue and yValue are obtained from a node. We are showing a name as the label on each point so plotted on the graph through Chart Designer (Format->$Label).
The issue we are facing is:
We have 3 points with the same xValue and yValue. Meaning they plot the same point on the graph. But the name associated with each is different. These names are overlapping (as its the same point on the graph) and are hence not readable.
Is there any way in which we can show multiple names/labels on the same point in a readable way?
Is it possible for us to show a tool tip at each point where the tool tip contains the comma seperated names/labels associated with all the x and yValues at that point?Hi,
there's no automatic mechanism for detecting such label collisions in the scatter chart. However, you can change the position of each label (HorizontalPosition, VerticalPosition) and use point customizing to position several labels around this single point.
Regards, Kai -
Can I Design a Forum with using web dynpro for java?
Hi All:
Can i design a forum with using web dynpro for java?
I want to design an application like a simple forum which maybe has many replies.So if i use
the UI technology "web dynpro for java", i will to create UI elements dynamically.How can i control this
dynamical UI elements to keep layout ?Hi,
yes you can do that....
for exaple if you observe SDN...
you can imagine like....
A big Transparent Container(TC)....
Inside that number of other TCs(depending upon the question nd its replies...)....
In side each TC, again around 9 UIElements....
one for menioning what is the question/reply?
other for your description of question/reply...
other for your name,
displaing your fourm point... etc...
So it will be
for(loop till your (Question+No of replies))
Create Transparent Container....
Add Childs to the Container...
Decide your layout....
In case if you want to know how to create UIElements dynamically....
http://help.sap.com/saphelp_nw04/helpdata/en/4f/07cf3dd28b5610e10000000a114084/frameset.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/wdjava/dynamic%2bui%2bgeneration
Regards,
Srinivas.
Regards,
Srinivas. -
Creating Sales Order using Web Dynpro for java
Hi SDN,
I am new to Web Dynpro for java. I have developed an application for creating a sales order using adaptive RFC Model using BAPI. It's working fine when i create a single order. I wanna create SO with more than one line item. I have used the Table UI Element to do so. But i could not able to enter the 2nd item details. Please suggest me how to pass more than one line item from the Table UI element.
Thanks in advance.
Regards,
BashaHi Basha,
Do you need to display the header items and detailed items?
If the BAPI Contains Output values in R/3 side.
I mean to say if BAPI contains 4 line items.u can get thru wdjava the followinf way.
1. Create webdynpro application.
2.Import the model.
3.Create Customcontroller and model binding .
4. Write the execute method in controller.
BAPI b = new BAPI();
WdContext.node<BAPI>.bind(b);
give inputs for BAPI
b.setname(" ");
b.setno("");
wdContext.currentBAPI().modelObejet().execute();
wdContext.node<output>.invalidate(); in try catch
5. create view or when u give the dynpro application its
in the add custom to view and drag BAPI custom to view .
6.Crete UI for ur table thru insertTemplate table directly mapp the output values.
7. deploy and run
U can get the out line items .
Or any thing else post ur requirement.
Thanks
Lohi -
Notification Service in Web Dynpro for Java?
Hello Experts,
I'm new on the topic "web dynpro for java" and have a question about a real-time-notification of web dynpro clients.
In web dynpro for abap ther is apparently a new solution called "Notification Service" (since NW 7.0 Ehp2).
Details: http://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/f0802995-3433-2c10-2787-d7db51352891&overridelayout=true
But I found no hints how to solve the problem of a real-time notification in web dynpro for java.
Requirements for short: The server can trigger a refresh in one or more web dynpro clients.
Requirements a liitle more extended:
1. A web dynpro is running in a browser and shows data it gets from a DataBase table1
2. Now a function module1 is started by an event and changes the data in table1 on the server side, the web dynpro does not know about this event or the changes made by external components.
3. These changed data should be visible immediately in the running web dynpro after the event occurd --> trigger a refresh of the web dynpro from the function module1?
All I actually know is that: The web dynpro can update its context with the new data from table1 after a refresh of the gui (wddomodifiyview). Using a timed trigger I can get new data after x seconds (same way --> context update and gui refresh). Is there another way to refresh the web dynpro (that noticed requirements of #3) ?
Regards,
Anja HormannI recommend that you create another Web Dynpro application with this Timer to execute an RFC. This application would be in a Web Dynpro iView hidden from your SAP EP and shoot an event that would be captured by another application.
However I would take great care with this type of application.
And to answer your question at the moment, to my knowledge, there is no solution for this kind of integration between the ABAP and JAVA.
regards,
Angelo -
Best practice for Web Dynpro for Java to connect to SAP HR
What is best way to connect Web Dynpro for Java application deployed in SAP portal to connect to SAP HR ?
Is it good practice to connect to underlying SAP database ( eg oracle) directly to get the data or is there a better way ?
This below article describes to connect to external DB, however Is there any other way for SAP HR ?
http://wiki.sdn.sap.com/wiki/display/WDJava/WebDynproApplciationwithDatabaseMS+AccessHi,
There are 2 supported ways :
First is to use JCO connections to call abap RFC enabled function modules. (BAPIs for example)
Second is to call SOAP web services (HR enterprise services for example)
You should never access directly database tables...
Regards,
Olivier -
In Web DYnpro for java there is any Configuration controller?
Hi,
Experts,
I am having a confusion that is there any "Configuration Controller" present in Web dynpro for java.Where as i know that it is present in Web dynpro for abap could u please pass some idea on it.And how can identify the type of component in metadata files.
Thanks in advance,
Shabeer Ahmed.Hi,
you have Configuration Controller that we can call it as CC in Webdynpro application which developed using FPM that is Floor Plan Manager, which is used as part of developing the ESS and MSS business package.
The configuration Component is used to difine all the View Navigations and Road Map steps and define prespectives, and Vac's, Events for navigation from one view to another view.
go through this link u came to know abt FPM
http://help.sap.com/saphelp_erp2005/helpdata/en/43/3b8e8cb4ab1800e10000000a1553f6/frameset.htm
Cheers,
Apparao. -
External jars in Web Dynpro for Java CE 7.1.1
Hi there,
Can you give me some guidance for including external jars in Web Dynpro for Java (CE 7.1.1)?
I vainly tried for some hours now to get my external jars running in the new version of web dynpro (part fo Composition Environment 7.1.1).
The routines described in some other threads didn't help me. For example, in CE 7.1.1 there's no DC Metadata that would allow me to add an external library.
FYI, in the error message during build it simply says the package is not found.
My error is javac ERROR: D:\test.jdi\LocalDevelopment\DCs\demo.sap.com\retail\_comp\src\packages\com\sap\demo\retail\javafiles\DomParser.java:12: package com.sap.semprom.retail.sc does not exist
javac ERROR: import com.sap.semprom.retail.sc.BoundEvent;
Thx in advance!
HolgerSee http://help.sap.com/saphelp_nwce10/helpdata/en/d7/fc139ba1549047a5372ad3c0d540ea/frameset.htm
under "External library".
Armin -
Hardware requirement for Web Dynpro for JAVA
Hi Friends,
I am a starter in Web Dynpro for JAVA and about to develop web dynpro application in JAVA.Can anyone please guide me on the hardware requirement for this application of SAP?
Presently I have ECC 5.0 installed in 1 GB RAM using 160 GB harddisk.
Regards
Ashish.Hi Ashish,
If you want to install NWDS only then as said 1g.b is sufficient.
But if it's Personal System then you have to install Portal also( WAS).
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regards
Anil -
DM152 - Creating Interactive Forms in Web Dynpro for Java
Hi,
I'm looking for the "initial" Web Dynpro project used in "DM152 - Creating Interactive Forms in Web Dynpro for Java". Does anyone know where I can get this zip file?
Thanks in advance,
Geraldo.
[email protected]Hi Geraldo,
Refer the forum and ask Abdul or Ken to send the code
/thread/24464 [original link is broken]
Regards,
Santhosh.C -
How to read a comma separated file in web dynpro for java?
Hi,
I am new to web dynpro for java, i am trying to develop an application where i am uploading file which is a comma separated file i need to read the content of it and then call an rfc pass those values to it. i have created the ui for the afforesaid.
How do i read the content and call the RFC please help
ThanksHi Anumeha,
Perhaps your question can be answered in the Web Dynpro Java .
Thank you.
Regards,
Jan
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