You could do something like this...
In your tag class code, based on a condition, you could execute some code in your tag class (and do not include the tag body upon returning). If the condition is not met, then you could simply return from the tag, and execute the body of the tag (which would be the JSP code).

Similar Messages

Custom Tag and Attribute Not Found

Hi,
I've been getting an error with the following code in a JSP called cardDeclined.jsp...
<gwps:log level="ERROR" message="<%= request.getAttribute("errorMessage") %>" />gwps:log is a custom tag and errorMessage is a request attribute set in a servlet that includes my JSP. When I execute the program, I get a message from the servlet container (Tomcat 3.2.3) stating that "attribute 'errorMessage' has no value".
I wrote some test code that dumps out "errorMessage"; that seemed to work. The JSP request object has a value for "errorMessage." So, I now use the following workaround...
<% String message = (String)request.getAttribute("errorMessage"); %>
<gwps:log level="ERROR" message="<%= message %>" />I'm looking for a reference describing how request and session variables can be passed to the custom tag
Thanks,
CW

I think you might be having a problem with the quotes. Try this instead:
<gwps:log level="ERROR" message='<%= request.getAttribute("errorMessage") %>' />
Notice the single quotes around the scriptlet.

Is there any difference between "jsp:useBean" and "scriptlet" ?

A few days ago, I asked similar question. But I didn't get the answer I wanted.
I want to know the differnce between <jsp:useBean../> and <% .. %>(scriptlet).
I tested in three environments(Oracle Jserv, OC4J, and Apache Tomcat).
In Oracle Jserv and OC4J, a problem occured. But, Apache Tomcat does not occur a problem.
For example,
1) TestClass.java (Bean)
public class TestClass {
private String txt;
public class TestClass {
txt = "Test"; ----- (g
public String getTxt() {
return txt;
2) test.jsp
<html><body>
<% TestClass test = new TestClass(); %> ---(h
<%= test.getTxt() %>
</body></html>
Assume that I visit "http://localhost:8888/test.jsp".
In Tomcat, if I change "Test"(number(g) to "Test1" and compile the browser shows the change.
But Oracle Jserv and OC4J does not do that. They also show the old String.
So, I changed <% TestClass test = new TestClass(); %>(number(h) to <jsp:useBean id="test" class="TestClass" />. That is, I changed "Scriptlet" to "JSP useBean Tag".
Then, Oracle Jserv and OC4J also show the changes.
To conclude, is there any difference between "JSP useBean Tag" and "Scriptlet"?
Can't I use a scriptlet (to make a class) in Oracle Servlet Engine?
Thanks.

It could be as simple as the JSP not recompiling between java recompiles - ie, it compiles in the link to the old class.
Try changing the JSP file (add and delete a space) after you change the java code, and then see what happens.
Jonny
null

Difference b/w a custom tag and cfinclude

Hi,
can anyone pls describe the difference between a cold fusion
custom tag and cfinclude. Or how they are processed in the server?
While we use the custom tag it nearly functions same as
cfinclude....i can't think of any ...

ajithmanmu wrote:
> Hi,
> can anyone pls describe the difference between a cold
fusion custom tag and
> cfinclude. Or how they are processed in the server?
While we use the custom tag
> it nearly functions same as cfinclude....i can't think
of any ...
>
<cfinclude...> does just that. It logically includes
the code in the
current template to be parsed at that point and time. With
<cfinclude...> the code exists in the same scope is the
entire template
sharing all variables.
A custom tag is a separate template with it's own local
variables as
well as start and end states that can be used to create much
more
sophisticated interactions. One thing that a custom tag can
do that an
include can not do is reiteration, where a tag can
dynamically call itself.

Difference between customizing request and workbench request?

Hi ,
What is the difference between customizing request and workbench request?
please reply.........

HI,
<b>Workbench Requests</b>
When you change a Repository object of the ABAP Workbench, a query window appears in which you need to specify a Workbench request. You can only save the changes if you have assigned the object to a change request.
Workbench requests and the tasks assigned to them are normally used to record changes to Repository objects and Customizing for all clients. However, you can also include client-specific Customizing.
Whether the changes to Repository objects are transported depends on whether a transport route is defined from the current SAP System for the package of these objects. From the system settings, the system automatically determines whether the change requests are transportable and to which target system they should be transported.
<b>Customizing requests</b>
Customizing requests record client-specific Customizing settings made in a single client (the source client of the request).
Automatic recording of configuration activities in the Customizing work for a client can be activated or deactivated for each client with Client Control. If automatic recording is active, a query window appears when you change Customizing settings, asking you to specify a Customizing request.
Whether Customizing requests are transported or not, does not depend on the objects entered, as is the case with Workbench change requests. The Customizing requests in an SAP System (or in a client if you use Extended Transport Control) are either all transportable or all local, depending on the system setting. The system uses the standard transport layer to determine automatically whether the change requests are transportable and to which target system they should be transported. However, you can change this manually.
pl reward if it helps.
Thanks
Sadhu Kishore

Different between Customer requirement and Sales Order.

Hi, can any expert explain the Different between Customer requirement and Sales Order to me?
Any help would be appreciated.
Regards,
Tiger

Hi...
The Customer sents the requirement ( Like specially manufactured products as per the customer specifications) which can be entered in the form an Inquiry. With ref. to this inquiry a quotation will be sent to the customer. The customer places an order thru document with reference to this quotation.
Now the company processes the order and manufactures the Product and delivers the Product to the Customer and recieves the payment.
Hope this clears the query
Reward points if found usefull
regards
Sajeev

Passing variables between data tag and Java

Hello all,
I have a question about using variables between data tag and java.
Let me explain.
I would like to populate variable "Test" with
the information returned by jbo data tag library.
<code>
<% String Test = "%><jbo:ShowValue datasource="ds" dataitem="Cod" /><%";%>
or
<% String Test = "<jbo:ShowValue datasource="ds" dataitem="Cod" />";%>
</code>
This code did not work.
Some suggestions
Thanks
Humberto
null

Humberto,
I'm afraid I do not know the specific answer
to your question (perhaps Juan the Data Tag
Wizard will reply ;-). I vaguely recall
struggling with teh same issue when I was
playing with the tags for a demo. Here
is a hack-around lifted from my demo
that might help:
<jbo:Row id="privRow" action="CURRENT" datasource="privileges" />
<%
String privName = (String)privRow.getAttribute("Privilegename");
%>
In other words, I ended up using the Row
tag to get a local Java variable bound to the
row instance and then used its methods
to extract the value. I presume the class
of the row instance is oracle.jbo.Row
and you can lookup its supported methods
in the reference doc.
I'd be interested to hear if their is a more
elegant way - the one suggested above is
pretty tedious.
Regards,
Bill
----

Difference between panelGrid tag and dataTable

hi,
what is the difference between panelGrid tag and dataTable tag in jsf

A panelGrid is useful when you have a fixed number of rows and columns. Each child component of the panelGrid is specified explicitly and arranged in a grid by the parent component.
A dataTable is useful when you have a collection of homogeneous data of indeterminate size. You specify the columns of the dataTable and it will iterate over your data creating one row per datum.

Difference between custom controller and component controller

Hi All,
I am a beginner in CRM SAP .
Please can anyone tell me whats the difference between custom controller and component controller with some scenario.
I am totally baffled.
Thanks in advance.
Regards
Shilpi

Hi Shilpi,
The main difference between custom and component controller is the role which they play during data transfer.
a) Custom controller is used for data transfer across two views within a component. For that you need to bind view context nodes to custom controller either through wizard or manually by adding the code in CTXT class create_contextnode method:
initial setting for depandant model node
    coll_wrapper =
      BTADMINH->get_collection_wrapper( ).
    TRY.
        entity ?= coll_wrapper->get_current( ).
      CATCH cx_sy_move_cast_error.
    ENDTRY.
    IF entity IS BOUND.
      BTOpportH->on_new_focus(
                   focus_bo = entity ).
    ENDIF.
b)Component controller is used for data transfer across two views in two different components. For this, we need to define the component usage first and then bind the context nodes in the method-WD_USAGE_INITIALIZE of the Component Controller impl class.
    WHEN 'ComponentUsageName'.
      iv_usage->bind_context_node(
                  iv_controller_type = cl_bsp_wd_controller=>co_type_custom
                  iv_target_node_name = 'ContextNodeName' "#EC NOTEXT
                  iv_node_2_bind      = 'ContextNodeName' ). "#EC NOTEXT
Hope this clears some of your doubts!
Thanks and Regards,
Rohit
P.S-This is valid for CRM 2007.Raghu is also right because Interaction Center is made up of different different components combined together.You have put your question in wrong forum.

What is the difference between Custom controller and context controller?

Hi Gurus,
What is the difference between Custom and context controller?
In which occasion we should prefer to use Custom Controller?
Thanks in Advance,
Dharani

You mean difference between custom controller and component controller???
if yes...
its been discussed many times.... just go through these threads, you will be clear
custom controller vs component controller
Component Controller and Custom comtroller
[ why we need Custom controllers in Model Applications |why we need Custom controllers in Model Applications;
[CONTROLLER AND CONTEXT|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/944ea9e5-0601-0010-65b3-b49a56eb6385]
Pradeep
Edited by: pradeep bondla on Jul 22, 2008 12:42 PM

Difference between customer exit and user exit?

hi experts
difference between customer exit and user exit?

These r the main differences between user exits and customer exits
1) user exits r subroutines where as customer exits r function modules
2) user exits r not upgraded where as customer exits r will upgrade
3) customer exits r used for creating and additional fields or menu items to stadard tcode where as user exits r used for enabling or disabling the fields on the standrd screen or concatenating the key fields,it is not used adding an additional componenats to stadard tcode
4) customer exits r reusable where as user exits r not reusable.
Also:
1. Customer exits: Implemented as Function Modules within z includes. Anybody can change it and no access key is required.
2. User Exit: Implemented as subroutines within includes (any include except y or z includes). You need access for the specific include and then you can any subroutine (user exit) within that Include.
BADIs are the enhanced version of user exits where the same logic is implemented via classes and object (OOP)
Enchancement point is the latest once introduces with ECC6.0 . Not very sure about that but you can change it without any access key.
Please go through the following link which will help you understand the exits in a much better way:
http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec07a25db911d295ae0000e82de14a/content.htm
http://www.sap-img.com/abap/what-is-the-difference-between-smod-and-cmod.htm
http://sap.niraj.tripod.com/id21.html
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
http://www.sap-img.com/ab038.htm
User Exits.
http://www.erpgenie.com/sap/abap/code/abap26.htm
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sapgenie.com/abap/code/abap26.htm
http://www.sap-img.com/abap/what-is-user-exits.htm
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
http://www.easymarketplace.de/userexit.php
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sappoint.com/abap/userexit.pdfUser-Exit
customer exits
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f1a7e790-0201-0010-0a8d-f08a4662562d
Menu Exit.
http://www.sappoint.com/abap/spmp.pdf
http://www.sappoint.com/abap/userexit.pdf
http://www.sapdevelopment.co.uk/enhance/mod_sapmenu.htm
http://www.sapdevelopment.co.uk/enhance/enhancehome.htm
1. Previously there were only user-exits.
2. Then came the concept of customer-exits.
3. user exits were nothing but subroutines
FORM/PERFORM
called from standard programs.
4. The FORM defintion was placed inside
an empty include file.
5. So It was called EVERYTIME.
and we need to MODIFY/REPAIR the
standard include .
6. Then it came with concept of customer-exit
7. It consists of calling a FUNCTION MODULE,
which is called only if
the user-exit is ACTIVATED (other wise not called)
In this case, the code in put inside
a pre-defined Z include.
8. Functionality of both is same, howerver
we can note the following important differences
a) Customer exit is called only if activated.
(hence, it does not waste resources)
b) in customer exit, REPAIR does not happen
to the standard include.
Exits are basically the hooks whcih SAP has provided to add your own code.
User Exits: These are provided only SD module .
They are Empty subroutines with naming like USEREXIT_.
We need to have Access key to implement them.
Customer Exits: These are enhancement techniques.
There are defined in SMOD and implemented in CMOD.
Types of Customer exits: Function exit, Screen Exit, Menu exit.
User Exit and Customer Exit are same ,but SAP Exit and Customer exit are different...
Customer Exit,
Enables you to determine values for variables by means of Functional Module exit.The function module used is EXIT_SAPLRRSO_001.
Create a project in CMOD by selecting the SAP Enhancement RSR00001 and assign this to the enhanced proj and activate it.
Customer Exit
SAP creates customer exits for specific programs, screens, and menus within standard applications. These exits do not contain any functionality. Instead, the customer exits act as hooks. You can hang your own add-on functionality onto these hooks.
If you want to enhance the functionality of your SAP System, you should take advantage of the exits available in standard applications. There are two main reasons why you should use exits rather than modifying SAP software yourself. Add-ons attached to exits have the advantage that:
They do not affect standard SAP source code
When you add new functionality to your SAP System using SAPs exits, you do not alter the source code of standard SAP programs in any way. The code and screens you create are encapsulated as separate objects. These customer objects are linked to standard applications, but exist separately from SAPs standard software package.
They do not affect software updates
When you add new functionality to your SAP System using SAPs exits, your objects (called customer objects) must adhere to strict naming conventions. When it comes time to upgrade a to a new software release, customer objects names ensure that they will not be affected by any changes or new additions to the standard software package.
Customer exits are not available for all programs and screens found in the SAP System. You can only use customer exits if they already exist in the SAP System. You find find more information about locating applications with pre-defined exits in Locating Applications that have Exits
http://help.sap.com/saphelp_nw04/helpdata/en/1d/ca10d858c2e949ba4a152c44f8128a/frameset.htm
SAP EXIT:this processing type contained in variables that are delivered with SAP BW business content.
http://help.sap.com/saphelp_nw04/helpdata/en/1d/ca10d858c2e949ba4a152c44f8128a/frameset.htm
User Exits: allow you to add additional functions to the SAP standard.
Programs with user exits contain subroutine calls at certain points in their syntax that are identified by the prefix USEREXIT. The actual user exits are located in an include that has been assigned to a module pool. This is where customers can include any changes (enhancements) that they want to make to the system. These includes are always processed during program flow.
Advantage: In principle, customers can modify anything they want that is found in the include (tables, structures, and so forth).
Disadvantage: SAP cannot check the individual enhancements themselves which often leads to errors
reward points if found useful
regards
palak

What is the difference between customer exits and user exits?

hello friends,
what is the difference between customer exits and user exits?

Hi
User exit - A user exit is a three character code that instructs the system to access a program during system processing.
SXX: S is for standard exits that are delivered by SAP.   XX represents the 2-digit exit number.
UXX: U is for user exits that are defined by the user. XX represents the 2-digit exit number
Customer exit - The R/3 enhancement concept allows you to add your own functionality to SAPs standard business applications without having to modify the original applications. SAP creates customer exits for specific programs, screens, and menus within standard R/3 applications. These exits do not contain any functionality. Instead, the customer exits act as hooks. You can hang your own add-on functionality onto these hooks.     *-- Mani
The following document is about exits in SAP :-
The R/3 enhancement concept allows you to add your own functionality to SAPs standard business applications without having to modify the original applications.
SAP creates user exits for specific programs, screens, and menus within standard R/3 applications. These exits do not contain any functionality. Instead, the customer exits act as hooks. You can hang your own add-on functionality onto these hooks.
Types of Exits
There are several different types of user exits. Each of these exits acts as hooks where you can attach or "hang" your own add-ons.
Menu Exits
Menu exits add items to the pulldown menus in standard SAP applications. You can use these menu items to call up your own screens or to trigger entire add-on applications.
SAP creates menu exits by defining special menu items in the Menu Painter. These special entries have function codes that begin with "+" (a plus sign). You specify the menu items text when activating the item in an add-on project.
Screen Exits
Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screens flow logic.
Function Module Exits
Function module exits add functions to R/3 applications. Function module exits play a role in both menu and screen exits.
When you add a new menu item to a standard pull down menu, you use a function module exit to define the actions that should take place once your menu is activated.
Function module exits also control the data flow between standard programs and screen exit fields. SAP application developers create function module exits by writing calls to customer functions into the source code of standard R/3 programs.
These calls have the following syntax:
CALL CUSTOMER-FUNCTION 001.
Field Exits
Field exits allow you to create your own programming logic for any data element in the Dictionary. You can use this logic to carry out checks, conversions, or business-related processing for any screen field. Example: The data element BBBNR identifies a companys international location number. You might want to set up your R/3 System so that all international location numbers are larger than 100.
The field exit concept lets you create a special function module that contains this logic.
You assign the special function module to the data element BBBNR. You then assign the module to any programs and screens in which users can add new international location numbers. When you activate your field exit, the system automatically triggers your special routine whenever a user enters a company location number.
In 4.6c, you can use "RSMODPRF" program to create field exits.
An example of a user exits :-
MODULE user_exit_0001 INPUT
    CASE okcode.
        WHEN 'BACK OR EXIT'.
            CASE sy-dynnr.
                    WHEN '100'.
                         SET SCREEN 0.
                         LEAVE SCREEN.
                    WHEN '200'.
                         SET SCREEN 100.
                         LEAVE SCREEN.
             ENDCASE.
      ENDCASE.

Difference between customer exits and user exits

difference between customer exits and user exits

Hi,
USER EXITS->
1. Introduction:
User exits (Function module exits) are exits developed by SAP.
The exit is implementerd as a call to a functionmodule.
The code for the function module is writeen by the developer.
You are not writing the code directly in the function module,
but in the include that is implemented in the function module.
The naming standard of function modules for functionmodule exits is:
EXIT_<program name><3 digit suffix>
The call to a functionmodule exit is implemented as:
CALL CUSTOMER.-FUNCTION <3 digit suffix>
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
CUSTOMER EXITS-> t-code CMOD.
As of Release 4.6A SAP provides a new enhancement technique, the Business Add-Ins.
Among others, this enhancement technique has the advantage of
being based on a multi-level system landscape (SAP, country versions, IS solutions, partner,
customer, and so on)
instead of a two-level landscape (SAP, customer) as with the customer exits.
You can create definitions and implementations of business add-ins at any level of the system landscape.
To unify enhancements of the SAP Standard you can migrate customer exits to business add-ins.
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm
In order to find out the user exits for any tcode,
1. get the developement class of the tcode from SE93.
2. Now goto transaction SMOD and press F4,
3. give in the Deve class in the dev class and Press ENTER
this will show u the exits for any tcode.
or execute this report
http://www.erpgenie.com/sap/abap/code/abap26.htm
which gives the list of exits for a tcode
http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm
For information on Exits, check these links
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sapgenie.com/abap/code/abap26.htm
http://www.sap-img.com/abap/what-is-user-exits.htm
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
http://www.easymarketplace.de/userexit.php
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sappoint.com/abap/userexit.pdfUser-Exit
Regards
Kiran Sure

Integration between Custom list and task list

Is it advisable to provide solutions for the integration between custom list and tasks list in SharePoint?
I am working on a scenario where the data has to be segregated between multiple lists and there will be transactions among these lists using workflow. Some of the capabilities in Tasks list like due date notifications, calendar, tracking are needed
on the transaction. Since these lists are based out of different content types, is it advisable to choose these lists for solutions?
When we have to make few updates through workflow from custom list to tasks, will there be any problem in the transactions as it is two different content type?
Vijayaragavan, MCTS

Since SPLists and SharePoint workflows don't provide inherent
support for transactions, you have to handle rollback operations yourself.
The easiest way to simulate a transaction is to read in the state of any list item you are changing prior to executing an update, and then write that state back should you detect a failure. It's not a perfect solution, since a sufficiently severe error might
prevent your rollback updates as well. That's the price you pay for not having the data store support transactions.
That being said, while it's true many clients will ask for business critical data to be stored in SPLists, I would argue that it's your job to convince them that it's not a good idea, and that transactional databases accessed over webservices are a much safer
SP compatible way to store important data - from
stackoverflow
[custom.development]

HTMLEditorKit, Custom Tags and CSS???

I have an editor that will allow the user to insert merge fields. The document is in HTML and the editor supports basic document styling (bold, italics, etc).
For the merge fields I would like to use either a custom tag or a generic tag like span. Unfortunately, HTMLEditorKit only supports HTML 3.2 (which does not contain the span tag). How can I create a custom tag called "merge"?
Once I've created my custom tag, will the Cascading Style Sheet support in Java allow something like "merge {color: red}"?
Any help of suggestions would be greatly appreciated!
-- John

Hi John,
I'm trying to do the same thing (an editor for document containing merge fields...)
For your first problem, I used the var tag which is not very used but exists in HTML 3.2 !
And yes: HTMLDocument support CSS
Since June, I think you've finded a solution
If you success in creating a custom tag, please explain to me how do you make...
my e-mail is [email protected]
Thanks
Luc

Between custom tag and scriptlets

Similar Messages

Maybe you are looking for