Enable lazy-loading for web dynpro ?

Hi,
i have an oss message opened, where i got the following message:
If you wish to change the start-up mode or enable lazy-loading,
these can be configured.
Please go to Windows->Preferences->Web Dynpro
and you can set the lazy loading or other start-up modes here
which will be then configured by default in your application-j2ee-engine.xml.
Please see attached snapshot.
Best Regards,
Vidya
what does he mean by 'windows->preferences->Web Dynpro' ??? WHERE do i have
to do this !
best regards, Martin

Hi Martin,
You have to change these setting in SAP Netweaver Developer Studio, when you open SAP Netweaver Developer Studio, you will have a Windows tab on the Top level Navigation, open that and Choose Preferences, and finally Choose "WebDynpro"..and make the changes..
Hope this helps,
Regards,
Shailesh Nagar
Edited by: Shailesh Kumar Nagar on Feb 25, 2008 10:30 AM

Similar Messages

Want docs for Web Dynpro ABAP

Hi All ,
Can anyone please send me the Docs or link for Web Dynpro ABAP .
Thanks in advance
Rahul

Hi,
Web Dynpro ABAP
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/db22242d-0701-0010-28a2-aeaa1fefd706
Also, I have the official Web Dynpro for ABAP documentation. Please let me know if I should send it to you.
Hope that the following also helps you.
Web Dynpro for ABAP (WD4A, WDA) is the SAP standard UI technology for developing Web
applications in the ABAP environment. It consists of a runtime environment and a graphical
development environment with special Web Dynpro tools that are integrated in the ABAP
Workbench (SE80).
Web Dynpro offers the following advantages for application developers:
? The use of declarative and graphical tools significantly reduces the implementation
effort
? Web Dynpro supports a structured design process
? Strict separation between layout and business data
? Reuse and better maintainability by using components
? The layout and navigation is easily changed using the Web Dynpro tools
? Stateful applications are supported that is, if the page is changed and the required
data remains intact so that you can access it at any time throughout the entire
application context.
Note that stateless applications are not possible.
? Automatic data transport using data binding
? Automatic input check
? Automatic operation of the Web Dynpro application using the keyboard
? User interface accessibility is supported
? Full integration in the reliable ABAP development environment
Web Dynpro Architecture
Definition
Web Dynpro is the SAP NetWeaver programming model for user interfaces (UIs).
The Web Dynpro model is based on the Model View Controller paradigm, and has the
following features that build on the classic dynpro model:
? Clear separation of business logic and display logic
? Uniform metamodel for all types of user interfaces
? Execution on a number of client platforms.
? Extensive platform independence of interfaces
Structure
Metamodel Concept
Web Dynpro provides support for developing Web representation of a business application.
You use specific tools to describe the properties of a Web Dynpro application in the form of
Web Dynpro metadata. The necessary source code is then generated automatically and
executed at runtime. In addition to the events offered by the framework, you can also define
your own events for a Web Dynpro application. However, the event handling must always be
programmed in separate source code areas which are executed automatically when the event
is triggered at runtime.
In Web Dynpro, each user interface is always made up of the same basic elements. These
elements of the metamodel can be statically declared using Web Dynpro tools.
It is also possible to implement elements of the metamodel at runtime and to change them or
reintegrate them at runtime. Using these implementations, you can make any changes or
enhancements to a user interface that has been created by declarative methods by
generating new interface structures at runtime.
This means that you can combine declarative processes and the implementation of source
code.
Graphical Development Tools
To support this declarative concept, both the SAP NetWeaver Developer Studio and the
ABAP Workbench contain a range of Web Dynpro tools. You can therefore generate a large
proportion of a Web Dynpro application using the tools provided, without having to create your
own source code. This applies to the following parts of the application:
? Data flow between the front end and back end
? Layout of the user interface
? Properties of user interface elements
The Web Dynpro tools enable you to create source text areas manually within generated
source texts. These areas are not changed if the source code is regenerated.
Separation of Business and Application Logic
Using Web Dynpro enables a clear separation of business logic and display logic. A Web
Dynpro application runs on the front end and has local or remote access to the back end
system via a service. This means that the display logic is contained in the Web Dynpro
application, while the business logic and the persistence of the business objects run in the
back end system. The following options are currently available for connecting Web Dynpro
applications and the back-end system:
? An interface generated using adaptive RFC, through which BAPIs of an SAP system
can be called
? An interface for calling Web services
? A self-generated interface
The source code required for connecting the Web Dynpro application can be generated
from a UML definition of the Web Dynpro interface. A UML definition can be imported
into the Web Dynpro tools as an XML file.
Conversion of the Model-View-Controller
Conversion of the Model-View-Controller Programming Model
Every Web Dynpro application is structured according to the Model View Controller
programming model:
? The model forms the interface to the back end system and thus enables the
Web Dynpro application access to data.
? The view is responsible for the representation of the data in the browser.
? The controller lies between the view and the model. The controller formats
the model data to be displayed in the view, processes the user entries made by the
user, and returns them to the model.
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
Reward points if useful
Regards
Anji

Adobe Flash Islands for Web Dynpro ABAP Data Binding problem

I have downloaded the NetWeaver 7.1 Trial (includes Adobe Flash Islands for Web Dynpro ABAP). I try to create a very simple FlashIslands component running within the Web Dynpro Application, everything looks good. However, all binding to the Flex component is not working. Does anyone know why?
Since it's trial version, I login as BCUSER into NSP system. When I load up the build-in sample, such as Chart Demo, the binding to Flex seems working. I suspect if it has anything to do with package? I could only create my Web Dynpro under the $TMP package, as all the build-in sample are defined in SWDP_DEMO.
Please help.
Alan

hi,
Check out this link. It will give you an idea how to integrate Aobe island comp with web dynpro.
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/307b434f-ff32-2b10-e885-991247270480
Thanx.

Disable Lazy Loading for Navigation Properties on Entities in EF 5

Hello all,
Can we disable Lazy Loading for Navigation properties on any entity?
If yes, how we can achieve the same.
Thanks,
Naresh

Hi Naresh;
If you are using code first you can do the following to turn off Lazy loading for a given navigation property. For example
lets say we have a Customers table and a Orders table and a Customer can have 1 to many Orders the following POCO class has a ICollection that is mark as virtual, This causes Lazy loading to happen when a property of order is accessed.
// Lazy Loading Enabled
public class Customers
public int Id { get; set; }
public string Name { get; set; }
public virtual ICollection<Order> Orders { get; set; }
To turn off Lazy loading remove the virtual key word as follows:
// Lazy Loading Is Disabled
public class Customers
public int Id { get; set; }
public string Name { get; set; }
public ICollection<Order> Orders { get; set; }
To turn of Lazy Loading for all entities using Code First you can do the following in the constructor of the DbContext.
public class MyContext : DbContext
public MyContext()
this.Configuration.LazyLoadingEnabled = false;
If the above does not meet your needs please tell us what version of the Entity Framework, which context type you are using, for example ObjectContext or DbContext, and which modeling you are using such as Code First, Model First or Database First.
Fernando (MCSD)
If a post answers your question, please click "Mark As Answer" on that post and "Mark as Helpful".

How to configure SSO for web dynpro ABAP (not web dynpro Java)

Hi Experts,
    I am testing SSO in IDES for web dynpro ABAP (Not for web dynpro Java / not for portal). When I am entering url of web dynpro application in web browser like internet explorer, then it should ask for user id and password first time, after login whenever user would access that url, it must not ask for user ID and password (url would be access web browser in mobile). For this I select to configure single sign-on for web dynpro ABAP. I have done below works:
1). I have created a web dynpro application having url: http://susws076.sap.swk:<port>/sap/bc/webdynpro/sap/zadb_hello_world2
2). I run TCode SICF and access service node to "Zadb_hello_world2". Double click on it, hit change. pressed "logon data" tab, select "Alternative logon
     procedure"
   Then deleted all logon procedure other than "SSO Authentication" and saved.
3). Go to "STRUST" and create certificate, choosed "Environment==> Logon Ticket" fill the required parameters and execute. It is OK (no red traffic
     signal).
4). Execute TCode "RZ10" to change profile parameter, insert new parameter (indicated by red arrow)
After all this settings I opened a browser enter above URL and hit enter but there is an error
There is no login page. It directly showed this error page. No cookies is saving.
Can anyone tell me what all the settings/configuration other than this I have to do. And is there any wrong setting done by me?
How to set the for single sign-on?
Thanks in Advance
Regards
Piyush

Hi Piyush,
Pls refer below links,
Single Sign On with ABAP WebDynpro
http://help.sap.com/saphelp_nw70ehp2/helpdata/en/5e/6c85c3edf942f39349a1e337434d29/content.htm
Regards
K.N

Search help for Web Dynpro using the SAP-search help

Hi,
Im trying to create a generic search help for Web Dynpro using the SAP-search help. It should working so, that I construct a Web Dynpro-component, that gets the data of the search help from the SAP-system, interpreted it and creates the ui-elements and the needed context generic.
The mapping between the Input field of the customerview and the right search help is to be made with an xml-file, which contains the information: name of the view, the input field, the search-help-name and the name of the field that will be returned.
The xml-file is reading from a helper-class. That helper-class contains any information, witch need the search help-component as well as the customer-component.
The initialization takes place in the method wdDoModify of the customer. The call of the search help from the customer should be implement with an Action, witch is bound to a Button(create dynamic in the helper-class behind the input field).
In a second foot should be create a plugin for eclipse, witch insert the used files (search help component, helper class, ) in the project. In addition it should create the call in the customer generic.
It would be great if someone can give me a feedback!

Hi Mike,
The BlanketAgreement.exe is a reference to the executable that will be created when you compile the solution you created in Part II - Part III. I think there is a mistake in the tutorial because it asks you to name the project 'Blanket' which means that by default the executable will be called Blanket.exe and not BlanketAgreement.exe. The tutorial also misses the step asking you to compile the Blanket project before you go on to create an installer. You should compile your Blanket project in Release mode before creating an installer. By compiling the project you'll get a Blanket.exe file in the bin folder of your Blanket project which you then need to add to the installer per the instructions.
SAP do offer development courses in some areas and there is training material here on the SDN and on the SAP partner portal (and maybe the customer portal as well). Try searching this forum for 'training' or 'tutorial' and you should get a few links. There's also a development certification.
Personally I'd recommend you give yourself a little project to work on and just get stuck in
Kind Regards,
Owen

Pdf files for web dynpro

can anybdy tell any link to get the study materials for web dynpro for java in .pdf format.

Hi,
there you can find the entire documentation, you normally have a look at help.sap.com, in pdf format (it's NW2004s, SP 5 or 6, I guess)
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/com.sap.km.cm.docs/library/nw/netweaverdevelopersguide2004s/sap%20netweaver%20developer's%20Guide%202004s/UsingJava_00_PDFsList.ca
(copy & paste the link, directly it won't work )
kind regards
Stefanie

Different languages are not available for Web Dynpro ABAP (WDA)

Hi Experts,
We are using Web Dynpro ABAP in 2 different languages (English/Spanish). Production environment only is available for English (WDA).
How can I make Spanish language available for Web Dynpro ABAP??. Is there any configuration or installation which I am missing?? Development and QA are OK (English/Spanish)
Thank you.
Regards
David Cortés.

Hi Experts,
Any help???
Regards
David Corté

JPA - lazy loading for LOB field

Hi all,
JPA 1.0 specification mandates that all JPA-compliant implementation support lazy loading for certain kind of entity field.
For LOB fields lazy loading is OPTIONAL.
I am experiencing odd runtime behaviors on my custom software which would point to this feature not being supported.
Can anyone please tell me if SAP JPA 1.0 implementation on NW CE 711 implements this feature or not?
Thanks in advance
Regards
Vincenzo

Hi Vincenco,
I am sure that this is the same as with single-valued relationships (@OneToOne, @ManyToOne): Lazy loading would require bytecode manipulation/generation, so SAP JPA does not support it in 7.20 (and of course not in 7.11)
See tulsi jiddimani's elaborate answer here: Re: JPA: Documentation on LazyLoad.
In 7.30 enhancements, you really can find lazy loading support for single-valued relationships with getReference.
http://help.sap.com/saphelp_nw73/helpdata/en/68/f676ef36094f4381467a308a98fd2a/content.htm
but @Lob and @Basic is not mentioned.
If you need lazy loading in 7.11, you have two alternatives:
1. Put the Lob fields into separate entities, work around the missing feature in SAP JPA with ugly @OneToMany - Relations
2. Use another persistence provider like EclipseLink, read Sabine Heider's blogs about integrattion of EclipseLink in SAP NetWeaver and static bytecode weaving for lazy loading. /people/sabine.heider/blog
Regards
Rolf

How to create search help for Web Dynpro?

Hi all,
I have troubles when creating search help for web dynpro. I have visited this link /people/dirk.rehberg/blog/2006/12/27/generic-search-help-for-web-dynpro-for-java but I can't find this generic search help plug-in for download. If u have this plug-in can u share it for me or upload somewhere for download. Or anyone has already done this search help please help me solve this problem! Thanks in advance!

Hi Dinh Thieu Thien,
please place such a request to the appropriate forum "[Web Dynpro for Java|Web Dynpro Java;".
Thanks and regards,
Boris

How to call custom themes for Web Dynpro ABAP Application?

Hi,
I need to change the appearance of Web Dynpro ABAP application. So far I followed below steps,
1.     Created theme folder u2018testngou2019 (SE80->MIME Repositoty -> SAP->PUBLIC->BC->UR->nw5->themes -> u2018testngou2019 ).
2.     used program BSP_UPDATE_MIMEREPOS to dowmloaod content of u2018sap_tradeshowu2019 (SE80->MIME Repositoty -> SAP->PUBLIC->BC->UR->nw5->themes -> sap_tradeshowu2019) to desktop.
3.     Modified the themes using Eclipse Theme Editor.
4.     used program BSP_UPDATE_MIMEREPOS to upload modified themes to MIME repository u2018testngou2019 (SE80->MIME Repositoty -> SAP->PUBLIC->BC->UR->nw5->themes -> u2018testngou2019) .
My current URL is like http://server.name:XXXX/sap/bc/webdynpro/sap/hrrcf_a_startpage_int_cand?sap-client=XXX.
Now I want to know how custom themes called for Web Dynpro ABAP Application.
Is my approach correct?
...Naddy

Hi Naddy,
What you used is one way and even I failed when tried that method,
Instead go to SE38 - WD_THEMES - and you need to upload the zip file and you need to follow a folder structure.
it is case sensitive, atleast the zip file.
Make a zip file by name "Project.zip" -
Create a Folder Project and have the below folder structure,
1 data - all the properties files and also the designinfo file, below is the code
2 themes - (to get all the files download the theme from portal and you will have all the folders)
   2.1 ur
     2.1.1 name of the theme
       2.1.1.1 common
       2.1.1.2 csf
       2.1.1.3 r
       2.1.1.4 ur - all the css files (would be good if you can get the files from the server.)
       2.1.1.5   WSRP
3 war - empty folder
*.designinfo
isVisible=true
version=7.0.14.1.0
isDefault=false
isSapDesign=false
designName=**** name of the theme
Once done create a zip file and click on Start Import and give the path and will ask for transport request, it will take a while to upload once done as mentioned in the use the parameter sap-ep-themeroot="path"
This will resolve the issue.
Cheers-
Pramod
reward points if helpful

SAP tool to estimate time for web dynpro development project

Hi,
Is there any standard SAP tool available to estimate time for web Dynpro development project?
Thanks and Regards,
Deepti

Hi Deepti
An implementation of Webdynpro based UI could be estimated by a 'standard' technique like any other U:
1. Try to count the number of views/screens/popups in your application. The estimation time will be proportional to the quantity.
2. Try to count the number of external interfaces would be used in the application. For example, quantity of necessary BAPI invocations (RFC), quantity of Web-service invocations or EJB calls. Also quantity of native JDBC queries if any.
Test = Nviews x Hview + Nint x Hint, where Hview & Hint time in hours for average implementing of one UI view and time for adding of average service invocation.
BR, Sergei

Create Transaction for web-dynpro ABAP

hi
Can you help me in creating a transaction for web-dynpro ABAP.
thank you.

If you want a SAPGUI transaction code that will launch your Web Dynpro ABAP application then I suggest creating a parameter transaction code that wraps around the SAP standard transaction code WDYID. You can use the parameter STARTMODE to decide if you launch your browser within the SAPGUI window or if it opens a new browser window. You will get SAPGUI based Single Sign On with this transaction code as well. Here is an example of a TCode I setup:
http://www.flickr.com/photos/tjung/2758987559/
And here is what it looks like when running in place within the SAPGUI:
http://www.flickr.com/photos/tjung/2758987583/

Coding standards for Web dynpro ABAP

Hello all,
Can anybody please help me by providing the code review checklist for Web dynpro ABAP?
Thanks and Regards,
Rohini Shankar

Hello friend,
WebDynpro     *
1     Do not implement Data intensive operations in UI layer
2     Avoid database selects in the WebDynpro code.Use the corresponding BAPIs ,Methods
3     Are ABAP OO Classes like Assistance class are being used for application coding ?
4     Are Windows/Views only used for the sole purpose of hosting views and context?
5     Are a reasonable number of views put in a single WD Component instead of creating multiple WD Components ?
6     Unneccessary usage of dynamic programming and dynamic component avoided
7     Are singleton nodes used in case of nesting in the context ?
8     Is deep nesting of containers, Groups and Tabstrips avoided ?
9     Is the UI element TreeByKey or TreeByTableNestingColumn used instead of the Tree UI element ?
10     Is the checkbox "Accessibility Checks Active" ticked in the WD Component properties
11     Are the WD Component Instances deleted when no longer needed (IF_WD_COMPONENT_USAGE=>DELETE_COMPONENT)
12     Are the OTR texts defined for all the labels, texts(where ever appropriate) in properties of all the UI elements
13     Has the Generation limit been checked for all the components developed
14     Sufficients commets are written at the beginning of every major block to explain the processing logic.
*Error Handling     *
1     Is SY-SUBRC checked after CALL function modules
2     Use Assertions if you face unexpected errors which usually never ever occur!
Extended Check and Clean Up
1     Have following been removed :
     ·      Unused variables
     ·      Unused text elements
     ·      Unused tables from TABLES statement
     ·      Commented out parts of the code
     ·      Code segments which do nothing
2     Is extended program check completed and all errors/warnings removed
These are the things which i used for my project.
Thanks,
Sri Hari

Using CSS for Web dynpro application in EP

Hi,
I have some CSS (Style sheets) which I need to apply to the portal, so that all the web dynpro applications can have the same look and feel.
I read something about Theme Editor in EP. Can I somehow use that to import the CSS contents into the EP theme?
Any pointer to using CSS for Web Dynpro applications will be appreciated.
Thanks.
Puneet

Hi,
Go thorugh the follwing Web Dynpro Java
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/business_packages/a1-8-4/nw04stack09themes.zip
To know how to use it and for the steps to be followed please follow the tutorial here
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/how to edit web dynpro themes.pdf
the last url gives you a step by step procedure with wizards..
Regards,
RK

Enable lazy-loading for web dynpro ?

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