How to discover required datasource methods?

Where can I find the required datasource methods for specific classes. For example I am developing for the iPhone right now and have had a great deal of trouble trying to figure out specifically which methods are required in a class when I set that class as the datasource target of a UITableView in IB. From looking around I am guessing these are the required methods:
- numberOfSectionsInTableView:
- tableView:titleForHeaderInSection:
- tableView:numberOfRowsInSection:
- tableView:cellForRowAtIndexPath:

Those are the common ones.
Go the Documentation window and type in UITableViewDataSource for the complete list of possible methods.
You might also want to check: UITableViewDelegate

Similar Messages

EL - How do you call a method that requires a parameter

How do you call a method that requires a parameter
In scriplet code here is what I am trying to do
<%= car.getDefaultColor(car.getCarType()) %>
How do I do this in EL
Here is my guess (it generates the Exception described below)
${car.defaultColor(car.carType)}
Here is the Exception I am getting:
javax.servlet.ServletException: <h3>Validation error messages from tag library c</h3>tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${car.defaultColor(car.carType)}": Encountered "(", expected one of ["}", ".", ">", "gt", "<", "lt", "==", "eq", "<=", "le", ">=", "ge", "!=", "ne", "[", "+", "-", "*", "/", "div", "%", "mod", "and", "&&", "or", "||"]
Any Ideas?
P.S. If it matters to you, I am using JSTL 1.0 and the code snippets above are actually within the value attribute of a <c:out value="" /> statement.

How do you call a method that requires a parameter
In scriplet code here is what I am trying to do
<%= car.getDefaultColor(car.getCarType()) %>
How do I do this in ELYou don't. EL is very strict in method signatures. All get methods must be public Type getProperty(void); And all set methods must be public void setProperty(Type t);
So you will have to re-work your Bean so it does not need an argument to the get method (getDefaultColor()). Since you are calling another method out of car, you might re-write the getDefaultColor method as such:
public Object getDefaultColor() {
    CarType ct = this.getCarType();
    //then do other stuff
}If that isn't suitable, then provide a helper method that is used to set the current car type and then call the getDefaultColor:
private CarType curCarType;
public void setCurrentCarType(CarType ct) { curCarType = ct; }
public Object getDefaultColor() {
    if (curCarType == null) throw new IllegalStateException("CarType must be set before getting color");
    //normal work using curCarType
<c:set target="${car}" property="currentCarType" value="${car.carType}"/>
<c:out value="${car.defaultColor}"/>It is better to do as little of the data manipulation (setting up the car type) in the JSP as possible, so the first option is better than the second. Also better then the second would be to set the current car type in a servlet or data access object (or wherever) from which your retreive the car to begin with. Manipulatig it in the JSP itself should be your last resort (to keep as much business logic out of the JSP as possible).
Here is my guess (it generates the Exception
described below)
${car.defaultColor(car.carType)}
Here is the Exception I am getting:
javax.servlet.ServletException: <h3>Validation error
messages from tag library c</h3>tag = 'out' /
attribute = 'value': An error occurred while parsing
custom action attribute "value" with value
"${car.defaultColor(car.carType)}": Encountered "(",
expected one of ["}", ".", ">", "gt", "<", "lt",
"==", "eq", "<=", "le", ">=", "ge", "!=", "ne", "[",
"+", "-", "*", "/", "div", "%", "mod", "and", "&&",
"or", "||"]
Any Ideas?
P.S. If it matters to you, I am using JSTL 1.0 and
the code snippets above are actually within the value
attribute of a <c:out value="" /> statement.

How to call jpf controller method from javascript

Can any one help me how to call pageflow controller method from JavaScript.\
Thanks.

Accessing a particular pageflow method from Javascript is directly not possible unless we do some real funky coding in specifying document.myForm.action = xyz...Heres what I tried and it did not work as expected: I found another workaround that I will share with you.
1. In my jsp file when I click a button a call a JavaScript that calls the method that I want in pageflow like this: My method got invoked BUT when that method forwards the jsp, it lost the portal context. I saw my returned jsp only on the browser instead of seeing it inside the portlet on the page of a portal. I just see contents of jsp on full browser screen. I checked the url. This does make the sense. I do not see the url where I will have like test1.portal?_pageLabe=xxx&portlet details etc etc. So this bottom approach will notwork.
document.getElementById("batchForm").action = "/portlets/com/hid/iod/Batches/holdBatch"; // here if you give like test1.portal/pagelable value like complete url...it may work...but not suggested/recommended....
document.getElementById("batchForm").submit;
2. I achieved my requirement using a hidden variable inside my netui:form tag in the jsp. Say for example, I have 3 buttons and all of them should call their own action methods like create, update, delete on pageflow side. But I want these to be called through javascript say for example to do some validation. (I have diff usecase though). So I created a hidden field like ACTION_NAME. I have 3 javascript functions create(), update() etc. These javascripts are called onclick() for these buttons. In thse functions first I set unique value to this hiddent field appropriately. Then submit the form. Note that all 3 buttons now go to same common action in the JPF. The code is like this.
document.getElementById("ACTION_NAME").value = "UPDATE";
document.getElementById("batchForm").submit.
Inside the pageflow common method, I retriev this hidden field value and based on its value, I call one of the above 3 methods in pageflow. This works for me. There may be better solution.
3. Another usecase that I want to share and may be help others also. Most of the time very common usecase is, when we select a item in a drop bos or netui:select, we want to invoke the pageflow action. Say we have 2 dropdown boxes with States and Cities. Anytime States select box is changed, it should go back to server and get new list of Cities for that state. (We can get both states and cities and do all string tokenizer on jsp itself. But inreality as per business needs, we do have to go to server to get dynamic values. Here is the code snippet that I use and it works for all my select boxes onChange event.
This entire lines of code should do what we want.
<netui:anchor action="selectArticleChanged" formSubmit="true" tagId="selectPropertyAction"/>
<netui:select onChange="document.getElementById(lookupIdByTagId('selectPropertyAction',this )).onclick();" dataSource="pageFlow.selectedArticleId" >
<c:forEach items="${requestScope.ALL_ARTICLE}" var="eachArticle">
<%-- workshop:varType="com.hid.iod.forms.IoDProfileArticleRelForm" --%>
<netui:selectOption value="${eachArticle.articleIdAsString}">${eachArticle.articleItemName}</netui:selectOption>
</c:forEach>
</netui:select>
See if you can build along those above lines of code. Any other simpler approches are highly welcome.
Thanks
Ravi Jegga

How to know the class method behind an enterprise service

Hi,
SAP has provided enterprise services for Room booking in Real Estate module. They are even shipping the complete application for a nominal price. But the standard version is not suitable for our client requirement so they want to develop this application inhouse.
Now my question is: I know the enterprise services used in this application. How to know the implementing methods behind these enterprise services ?
If possible suggest which approach will be a better option for the inhouse development.
1. Webdynpro ABAP and use directly methods behind the enterprise services.
2. Webdynpro ABAP and create client proxy class for the enterprise services.
3. Webdynpro JAVA and use the enterprise services.
4. Using visual composer modelling the application.
Please suggest the best alternative.
Best Regards,
Aleem Mohiuddin.

Hi
They are even shipping the complete application for a nominal price. But the standard version is not suitable for our client requirement so they want to develop this application inhouse.
I assume you are talking about xApps.
How to know the implementing methods behind these enterprise services ?
In sproxy transaction you can search service and then you can see class and method implemented behind that particular service.
1. Webdynpro ABAP and use directly methods behind the enterprise services.
In my opinion not recommended to bypass ES and use method behind it.
2. Webdynpro ABAP and create client proxy class for the enterprise services.
Not sure why you want to create proxy of ES.
3. Webdynpro JAVA and use the enterprise services.
4. Using visual composer modelling the application.
You can use either Webdynpro (ABAP or Java) or VC to model your application which consume ES in backend. Both options are good, you can chose Java or ABAP flavor of dynpro based on skill available in team. VC is very effective in rapid modelling and can be used in protyping or in development of complete application.
Regards,
Gourav

How to create a datasource for 0COSTCENTER to load data in csv file in BI

how to create a datasource for 0COSTCENTER to load data in csv file in BI 7.0 system
can you emil me the picture of the step about how to loaded individual values of the hierarchy using CSV file
thank you very much
my emil is <Removed>
allen

Step 1: Load Required Master Data for 0CostCenter in to BI system
Step 2: Enable Characteristics to support Hierarchy for this 0Cost Center and specify the External Characteristic(In the Lowest Node or Last Node) while creation of this Characteristic InfoObject
Step 3: On Last Node of Hierarchy Structure in the InfoObject, Right Click and then Create Hierarchy MANUALLY by Inserting the Master Data Value as BI dosent Support the Hierarchy load directly you need to do it manually....
Step 4: Mapping
Create Text Node thats the first node (Root Node)
Insert Characteristic Nodes
Insert the Last Node of the Hierarchy
Then you need to create a Open hub Destination for extracting data into the .csv file...
Step1 : Create the Open Hub Destination give the Master Data table name and enter all the fields required....and create the transformations for this Open Hub connecting to the External file or excel file source...then give the location on to your local disk or path of the server in the first tab and request for the data...It should work alright let me know if you need anything else...
Thanks,
Sandhya

QM Module - How to get the Inspection Method & Characteristic value(Urgent)

Hi All,
    I have inspection lot number (PRUEFLOS), batch number
   (CHARGE), plant (WERK) & material number
   (MATNR) , using these fields how to get the inspection
   method (PMETHODE) & Characteristic Value (ATWRT) ?
   I dont know the relation among them.
Could you please help?
Thanks in advance.
Saket

Hi Jose,
Thanks for your help, could you please look into my requirement.
For all inspection characteristics listed in the selected COA profile, I have to retrieve the Inspection Method for all listed inspection characteristics. And also I have to retrieve the characteristic value(uncertainty). Additionally, for inspection characteristics that are quantitative, being checked, the characteristic value(uncertainty) from that Inspection method will be retrieved from class 3050_UNCERTAINTY, class type 006, characteristic, P2150_UNCERTAINTY.
Please help me out.
Thanks,
Saket .

How to implement classes and methods in badi's ?

how to implement classes and methods in badi's? and where i have to write the code based on the requirement?can anyone explain me briefly?

Hi
Every BADI by default Implements an INTERFACE which already contains some methods with parameters.
So you have to find the relavenet method based on the related paramters (by checking the fields in that paramters) you have to double click on the method and to write the code.
see the doc
DEFINING THE BADI
1) execute Tcode SE18.
2) Specify a definition Name : ZBADI_SPFLI
3) Press create
4) Choose the attribute tab. Specify short desc for badi.. and specify the type :
multiple use.
5) Choose the interface tab
6) Specify interface name: ZIF_EX_BADI_SPFLI and save.
7) Dbl clk on interface name to start class builder . specify a method name (name,
level, desc).
Method level desc
Linese;ection instance methos some desc
8) place the cursor on the method name desc its parameters to define the interface.
Parameter type refe field desc
I_carrid import spfli-carrid some
I_connid import spefi-connid some
9) save , check and activateadapter class proposed by system is
ZCL_IM_IM_LINESEL is genereated.
IMPLEMENTATION OF BADI DEFINITION
1) EXECUTE tcode se18.choose menuitem create from the implementation menubar.
2) Specify aname for implementation ZIM_LINESEL
3) Specify short desc.
4) Choose interface tab. System proposes a name fo the implementation class.
ZCL_IM_IMLINESEL which is already generarted.
5) Specify short desc for method
6) Dbl clk on method to insert code..(check the code in AAA).
7) Save , check and activate the code.
Some useful URL
http://www.esnips.com/doc/e06e4171-29df-462f-b857-54fac19a9d8e/ppt-on-badis.ppt
http://www.esnips.com/doc/10016c34-55a7-4b13-8f5f-bf720422d265/BADIs.pdf
http://www.esnips.com/doc/43a58f51-5d92-4213-913a-de05e9faac0d/Business-Addin.doc
http://www.esnips.com/doc/1e10392e-64d8-4181-b2a5-5f04d8f87839/badi.doc
www.sapgenie.com/publications/saptips/022006%20-%20Zaidi%20BADI.pdf
http://www.sapdevelopment.co.uk/enhance/enhance_badi.htm
http://help.sap.com/saphelp_nw04/helpdata/en/04/f3683c05ea4464e10000000a114084/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/e6/d54d3c596f0b26e10000000a11402f/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/c2/eab541c5b63031e10000000a155106/frameset.htm
Now write a sample program to use this badi method..
Look for BBB sample program.
AAA
data : wa_flights type sflight,
it_flights type table of sflight.
format color col_heading.
write:/ 'Flight info of:', i_carrid, i_connid.
format color col_normal.
select * from sflight
into corresponding fields of table it_flights
where carrid = i_carrid
and connid = i_connid.
loop at it_flights into wa_flights.
write:/ wa_flights-fldate,
wa_flights-planetype,
wa_flights-price currency wa_flights-currency,
wa_flights-seatsmax,
wa_flights-seatsocc.
endloop.
BBB
*& Report ZBADI_TEST *
REPORT ZBADI_TEST .
tables: spfli.
data: wa_spfli type spfli,
it_spfli type table of spfli with key carrid connid.
*Initialise the object of the interface.
data: exit_ref type ref to ZCL_IM_IM_LINESEL,
exit_ref1 type ref to ZIF_EX_BADISPFLI1.
selection-screen begin of block b1.
select-options: s_carr for spfli-carrid.
selection-screen end of block b1.
start-of-selection.
select * from spfli into corresponding fields of table it_spfli
where carrid in s_carr.
end-of-selection.
loop at it_spfli into wa_spfli.
write:/ wa_spfli-carrid,
wa_spfli-connid,
wa_spfli-cityfrom,
wa_spfli-deptime,
wa_spfli-arrtime.
hide: wa_spfli-carrid, wa_spfli-connid.
endloop.
at line-selection.
check not wa_spfli-carrid is initial.
create object exit_ref.
exit_ref1 = exit_ref.
call method exit_ref1->lineselection
EXPORTING
i_carrid = wa_spfli-carrid
i_connid = wa_spfli-connid.
clear wa_spfli.
Reward points for useful Answers
Regards
Anji
Message was edited by:
Anji Reddy Vangala

How to combine 3 Plan methods?

Hi: Everybody
Can you tell me how to combine 3 Plan methods?
Reorder point, Replenish to maximum stock level, and "PD" plan type.
Users want sap automatically generate PR when stock is lower reorder point, and automaticlly replenish to maximum stock level. inaddition, this material is component of finish goods, so it also can run "PD" planning.
via my test, PR gerenated either by reorder point or "PD" planning. But the methods can't be used together.
Everybody can direct me how to do?
Thanks
Henry

Hi:Partha
I have retest your solution, that's ok for save this customized MRP type via your suggested profiles.
however, this "external requirements" just focus on customets requirements such as sales order. I don't need to create sales order for it. its customer requirements is from its parent not itself.
so, when I create a sales order for its parent, sap cann't automaticaly PR for it even if its stock is zero.
by the way, reorder point is OK for the customized MRP type.
Thanks
Henry

How to find which datasource is using table JCDS?

How to find which datasource is using table JCDS?

Hi,
Please find the below link and identify whether will it meet your requirement or not ... If it meets your requirement then I can provide you more documents related to the same which we have in our project.   We were using the same for Plant Maintanance project...
For this report the required information is gathering from the different data sources from the ECC system. This report requires object status functional location attributes, Equipment attributes and some specific information apart from normal transaction data for an order.
u2022     Main feeding data sources for this report are 2LIS_17_ORDER and 2LIS_18_ORDER.
u2022     Requires the object status data (system status, number object status and un-number system status) is feeding from different DSO where the status data is staging with different data flow.
u2022     Requires the Order planned end date which is dependent on the operation planned completion date. so we are feeding this field from Operationu2019s DSO where the planned date is staging with different data flow.
u2022     Required characteristic data and attributes of the Functional location is getting from the master data .The 0FUNCT_LOC is updating by master data data sources
u2022     Required standard class of the functional location is updating from other DSO where the classification data is staging with the help of different data flow.
2LIS_17_ORDER and 2LIS_18_ORDER Data flow Details : No enhancement was done for these data sources .
Status Data Flow Details:
The status data is staged because ,this dat is required for the reports based on the Orders, Operations , Notifications, Functional Location and Equipment.
To load suitable data to different DSOs from the Status DSO we maintain the Filters for status profile and status at DTP level.
Required status change dates are deriving based on changed on date ,system status while loading from status DSO to Order DSO.
The system status ,Number object status and un- numberd object status are feeding from status DSO only.The status DSO is updating by u20180TE_OBJ_STATUS_HISTu2019.This Is based on the tables JCDS,JSTO and T000.
JCDS     MANDT     =     JSTO     MANDT
JCDS     OBJNR          =     JSTO     OBJNR
T000     MANDT     =     JCDS     MANDT
This DS has enhanced for the below two fields
1.     Order Number
2.     Operation/Activity Number
The Logic to populate the above two fileds is as below.
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/e4/1522bae6aa46b8802dca454e846d58/frameset.htm
regards
BVR

How to override the create method invoked by a create form?

Hello everyone, I'm using ADF Faces and have the next question:
How can I override the create method which is invoked by a create form to preset an attribute in the new row (the preset value is not fixed, I have to send it to the method as a parameter as it is obtained using an EL expression)?
In the ADF guide I read how to override a declarative method (Section 17.5.1 How to override a declarative method), but this explains how to do it with a method that is called by a button. I don't know how to do the same with a method which is called automatically when the page is loaded.
I also tried overriding the view object's createRow() method to receive a parameter with the preset values but it didn't work, I believe that was because the declarative create method is not the same as the view object's createRow. This caused the form to display another row from the viewobject and not the newly created one (I also set the new row into STATUS_INITIALIZED after setting the attribute).
Well, I hope my problem is clear enough for somebody to help me.
Thank you!

Hello,
I'm not sure you can do it with standard generated Create Form.
In your view object you'll need to create your own create method with parameters, publish it to client interface and invoke instead of standard generated create action in page definition.
Rado

How to use the index method for pathpoints object in illustrator through javascripts

hii...
am using Illustrator CS2 using javascripts...
how to use the index method for pathpoints object in illustrator through javascripts..

Hi, what are you trying to do with path points?
CarlosCanto

How to use the POST method In Oracle APEX 3.1

Hi,
In APEX if we are submitting the page the parameters( Variables ) will pass through URL.
How to hide the these parameters from URL??
I Hope POST method will solve this problem.
How to use the POST method in APEX???
Help me out to solve this problem.
thanks in advance.
Cheers,
Shan

In APEX if we are submitting the page the parameters( Variables ) will pass through URL.No they won't. Submission POSTs the <tt>wwv_flow</tt> form.
Sometimes a branch may be performed after submission, generating a URL in which parameter values are visible. To avoid this, use the save state before branching option.
Other actions—like using navigation lists, or clicking a link in a report—will perform a GET using parameters in the URL. In these cases using Session State Protection is advised.

How to check a single method is overriden in how many subclasses in ABAP.

Hi Experts,
I have a global superclass which had benn inherited by many other global subclasses. Is there any way to find out quickly (may be in a table ) in how many subclasses a particular method of the superclass is overriden?

Hi Manuish,
You can use the class CL_OO_CLASS to achieve the above, below is a sample code.
DATA: lcl_oo_class TYPE REF TO cl_oo_class,
      lw_seoredef TYPE seoredef.
TRY.
    CREATE OBJECT lcl_oo_class
      EXPORTING
        clsname = 'Y_TEST_CHEN_CLASS_SUB1'.
CATCH cx_class_not_existent .
ENDTRY.
WRITE: 'Class', '                              ', 'Refclass', '                         ', 'Over written method', /.
LOOP AT lcl_oo_class->redefinitions INTO lw_seoredef.
WRITE: lw_seoredef-clsname,'         ',
         lw_seoredef-refclsname,'         ',
         lw_seoredef-mtdname,'         ', /.
ENDLOOP.
Alternatively you can look up the table "SEOREDEF" directly.
Regards,
Chen
Edited by: Chen K V on May 4, 2011 12:37 PM

How can I create a method with throws instruction

Hello Everybody!
How can I create this method inside WebDynpro.
I enter "throws CloneNotSupportedException" manually an it removes always.
What is wrong ?
public java.lang.Object clone( ) throws CloneNotSupportedException{
    //@@begin clone()
     __Tdag__Is_Charactconfig that= (__Tdag__Is_Charactconfig)super.clone();
       return that;
    //@@end
Regards
sas

I only checked in my 7.1 IDE and there this section exists.
If it does not exist in your IDE, just create the method manually in the //@@begin others ... //@@end user-coding-area at the end of the controller class. This solves the issue for methods that are called from inside the controller. For public methods to be called from other controllers, this will not help.
Armin

How to call a bean method from javascript event

Hi,
I could not find material on how to call a bean method from javascript, any help would be appreciated.
Ralph

Hi,
Basically, I would like to call a method that I have written in the page java bean, or in the session bean, or application bean, or an external bean, from the javascript events (mouseover, on click, etc...) of a ui jsf component. I.e., I would like to take an action when a user clicks in a column in a datatable.
Cheers,
Ralph

How to discover required datasource methods?

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