How to implement a filter

Can anyone tell me how to implement a filter (like working sets filter in the project toolbar in Jdeveloper).

I am developing an extension and want to implement a "Filter"(funnel shaped) with similar features which is present in the jdeveloper(project toolbar->working sets)

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How to Implement Sort, Filter funtinality in Normal web dynpro ABAP Table

Hello,
How to Implement Sort, Filter funtinality in Normal web dynpro ABAP Table ?
Thanks

hi,
Check out this link for sorting in Table.
Sorting option in WebDynPro ABAP UI Table
steps to follow :
->Have the data in internal table (itab).
->Now use sort command for the particular column which ever you want to sort.
e.g sort itab descending by <Column>.
->Now you can bind the internal table with the Context Node which is binded to Table.
I hope it helps.
Thanx.

Filter using 2 input images (Flash). How to implement?

Hi. I know how to implement filters that process single image as it was described in Pixel Benders Developer's Guide, but how can I apply filter using 2 input images one of which is computed? I wrote a filter that coppies alpha channel of one picture and applies it to another, but flash implementation is quite a puzzle for me... Any help appreciated

In our tutorial from last year's MAX, I showed how to use a two-input pixel bender kernel as a blend filter for two images on the stage. that is posted here:http://blogs.adobe.com/kevin.goldsmith/2008/12/materials_from_1.html
In one of my recent blog postings, I showed how to use a ShaderJob with multiple inputs. I was doing it for audio processing, but it works almost identically for images: http://blogs.adobe.com/kevin.goldsmith/2009/08/pixel_bender_au.html
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How to implement State of charge kalman filter algorithm in C code

hi,
I am going to implement kamlan filter algorithm in C code. Is anyone here did this before. Please share your ideas and tell me how i can implement this. Give me some ideas. It would be highly apreciate. thanks in advance
here i attached the kalman filter algorithm file.
regards,
usman
Attachments:
1.docx ‏74 KB

Hi,
did you already have a look at some implementations of the Kalman filter ? For example, that one :
Kalman filter c code implementation. How to tune required variables?
http://forums.udacity.com/questions/1021647/kalman-filter-c-code-implementation-how-to-tune-required...
or that one :
http://alumni.media.mit.edu/~wad/mas864/psrc/kalman.c.txt
Hope it helps!
Aurelie

How to implement SEARCH HELP for input field in WDA

Hi All,
I am doing a tool for my team. in this tool there are 4 input fields to show different processes. I implemented the 4 input fields and also bind the respective tables to these fields successfully. Actually I want to filter the data between 2 fields . Means the data in the 2nd input field should be based on the 1st input field. Means when I'll select for example 'CHI' (code for CHINA) in the 1st input field the 2nd field meant for country name should show all country name with value 'CHINA'. But the problem is that all values related to each field are in different table with no foreign key relationship and also some combinations are in single table..
I have tried the import and export parameter method for search help but no luck till now.
Can anyone please suggest me how to implement this scenario..
Thanks in advance...
sekhar

Hi sekhar,
Your Requirement can be implemented by OVS(Object Value selector) This is the custom search help .So that you can define on what basis the value has to be fetched.
Look at the below link
http://wiki.sdn.sap.com/wiki/display/WDABAP/ABAPWDObjectValueSelector(OVS)
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/606288d6-04c6-2c10-b5ae-a240304c88ea?quicklink=index&overridelayout=true
You need to use the component WDR_OVS.
It has 3 phases
In phase 1
     You will fetch the value from input field to F4 help dialog box.
In phase 2
     You will generate the search results , in this phase look for the input value given in field 2 and accordingly generate search result for the field 3.
In phase 3
     The selected value will be returned to the original screen.
Regards
Karthiheyan M

How to implement row level security using external tables

Hi All Gurus/ Masters,
I want to implement row level security using external tables, as I'm not sure how to implement that. and I'm aware of using it by RPD level authentication.
I can use a filter condition in my user level so that he can access his data only.
But when i have 4 tables in external tables
users
groups
usergroups
webgrups
Then in which table I need to give the filter conditions..
Pl let me know this ...

You pull the Group into a repository variable using a session variable init block, then reference that variable in the data filters either in the LTS directly or in the security management as Filters. You reference it with the syntax VALUEOF("NQ_SESSION.Variable Name")
Hope this helps

How to implement this Java Script?

Hello,
I have this script to remove the link from titles of web parts. I am new to SharePoint 2013 development. I am not sure where to put it. Not sure what file to put it and how to implement it. How can ensure this code gets run on pages through out
my SharePoint 2013 site.
jQuery(document).ready(function () {
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        $(this).replaceWith($(this).html());
Reference
https://expectedexception.wordpress.com/2012/01/30/how-to-remove-the-list-view-web-part-title-bar-link/
Paul

Get the page Url from the website and go to Sharepoint Designer and browse the page and add the script within a scritp tag <script>jQuery(document).ready(function
       $('a').filter("[href='###']").each(function () {
        $(this).replaceWith($(this).html());
});</script>
how to open a site in SP Designer:
https://support.office.com/en-ie/article/Open-a-SharePoint-site-94d33d70-3f07-4a8e-b5b5-1137a9c36e74
another option is to find the global file that contain the scripts and add it as a method there. You can check these files by viewing source of the page.
note also that the Jquery reference is needed for this code to execute.
Fouad Roumieh

How to implement this? please help

In my java class, I have a string array called strarray which hold serveral elements, some of the elements have the same value , for example, the first element is "swimming", the forth element is also swimming. I use a for loop to get each element and give it to arrayHolder which is also a array with the same size as strarray. Now, what I want is: I defined a Vector called element I want this vector to filter out the element from arrayHolder, get the name of non-duplicated name from the arrayHolder, the result should be inside the element vector (swimming,walking,running,dancing), no duplicated name. My code is like follows:
import java.util.*;
import java.io.*;
public class arrayTest{
public static void main(String arg[]){
String[] strarray={"swimming","running","walking","swimming","dancing","running"};
String[] arrayHolder=new String[strarray.size];
Vector element=new Vector();
for(int i=0;i<strarray.length();i++){
arrayHolder[ i ]=strarray[ i ];
/* What should I do next to get the non-duplicated element from arrayHolder and
* add them into the element vector????
I did not finnish it, since I am a little bit confused, how to implement? Need some help. thanks.
Message was edited by:
Mellon

Not sure if I see the use of strArray & arrayHolder (I've not looked at your code - you might use code tags next time (check the "code" button above the message textarea), but may I suggest using a Map of some sort instead of a Vector? It will prevent duplicates for you.
Good Luck
lee

Implementing property filter

Hello all,
Probably silly and simple questions?
1) If my understanding is correct, a property filter hide/modify existing properties or add virtual properties...but, only temporarily right? i mean.. they are not changed permanently .. it's only for the display!
(<i>PLEASE CORRECT ME IF I AM WRONG</i>)
2) I have gone thru the link https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/kmc/knowledge management and collaboration developers guide.html >> <b>How To Implement a Property Filter</b> >> downloaded the example >> deployed too...
I can see my filter in Content Mgt >> Repository Filters..
But, how should i use this property filter?
Regards,
K.Kumar

hi,
For information regarding other properties,check the following link
1. http://help.sap.com/saphelp_nw2004s/helpdata/en/69/d96b80a84611d5993600508b6b8b11/frameset.htm
You could get info on repository filters from that link itself.
2.Also filters can only be applied to repositories and cannot be applied to navigation iviews(as you have stated that in your reply).You could view the contents of a repository through navigation iview.
3.I think filters can be applied only for repositories like '/documents' and not to subfolders like '/documents/kumar'.
Hope it helps
Regards,
Srinath

How to implement Stored procedure in OBIEE

Hi experts
How to implement Stored Procedure in OBIEE..
My Input is Date..
Thanks in advance
Regards
Frnds

Double post :
Re: How to get the previous monthend data and currentdate data in OBIEE report
You don't need a stored procedure.
If you want the amount only for one date, you can use the filter option in the formula :
FILTER("Sales Facts"."Amount Sold" USING (Time.Day = '31 jan'))You can calculate the last day with the timestampdiff function
31Jan = 1 Feb - 1 dayIf you want the amount of the month see my post here :
Re: How to get the previous monthend data and currentdate data in OBIEE report

How to implement paging in webdynpro jave based on search criteria.

Hi All,
In a requirement I need to implement paging in webdynpro java development.
I successfully did it when there is no search criteria is available i.e webdynpro fetched all data from the BO object and I did it using a "indexNO" (unique serial no from 1,2,3,4.....) field available in BO object.
But when there is search criteria available , i.e the data to be fetched from the BO based on some specific field , at that time the "indexNo" field of all data fetched based on search criteria are discrete i.e not continious. In that case how to implement the paging concept.
I am using CE version 7.1 EHP 1.
Thanks in advance
Srikanta Satapathy

Hi,
If you go to your VO and generate the ViewObjectImpl, in there you can create a method which will contain two parameters, 1 the attribute name and 2 the value.
Then you can follow something like explained in this post:
ADF Tutorial: How to apply bulk actions to a view object rows
The only difference is that you will need to create a method like this:
public void updateAttribute(String attribute, Integer value){
        RowSetIterator iter = createRowSetIterator(null);
        while (iter.hasNext()){
            Row row = iter.next();
            row.setAttribute(attribute, value);
Then you expose that as a client interface and then after you filter your table by your criteria you just need to execute this method passing the right parameters.
Regards

How to implement content caching for jsp page ?

Hello everyone,
I am reading an article <Servlets and Jsp Best Practice>,at
http://developer.java.sun.com/developer/technicalArticles/javaserverpages/servlets_jsp/#author, on one section it is saying :
"Cache content: You should never dynamically regenerate content that doesn't
change between requests. You can cache content on the client-side, proxy-
side,or server-side. "
Now I am working on a project. For every user, some of the content servlet generated will be the same for at least a week . I am thinking if I implement caching for these jsp pages, that would increase performace a lot.
But I have no idea how to implement it either client-side or server-side, can someone give me a hint ?
Thanks,
Rachel

You mean actually you are caching the response stream
and the key to distinguish between different response
streams are made of user's different request
parameters. And the filter's function is to intercept
the request to see if this request parameter's
combination already exists in the Hashmap,then either
use the cached response or forward to
servlet.....really interesting...Do I get it right ?Yes that's it in a nutshell.
>
Then how do you build those response streams in
advance ? You did it manually or have some mechanism
to build it automatically ?
The data gets cached the first time somebody visits the page.
Find some examples on Filters, and take a look at the HttpServletResponseWrapper class. You need to cache response headers as well as the body. Another pitfall that you might run into is handling an If-modified-since header on the request. Don't cache the results of those requests.
-Jonathan
>
Thanks again !
Rachel

Multiple active implementations for filter value EXEC_METHODCALL_PPF

Hi,
I have created an implementation for the EXEC_METHODCALL_PPF badi which is triggered from an action in a transaction.It is working fine in the development system but while transporting it to the quality system I am getting the following error.
Multiple active implementations for filter value EXEC_METHODCALL_PPF definition
Errors occurred during post-handling AFTER_IMP_SXCI for SXCI L
AFTER_IMP_SXCI belongs to package SECE
The errors affect the following components:
BC-DWB-CEX (Customer Enhancements)
When i refer to the documentation of the error message it says....
Multiple active implementations for filter value EXEC_METHODCALL_PPF definition
Message no. ENHANCEMENT474
Diagnosis
There are multiple active implementations of the same business add-in definition, even though this is not allowed.
System Response
This is not correct and should not occur.
Procedure
Deactivate the implementations active for this BAdI definition one by one until there is only one active implementation left.
You should use transaction SE18 (Utilities -> Adjustment -> Multiple-use interfaces) to solve these conflicts systematically.
But I am apprehensive if deactivating all the standard implemenatations of the badi will create any problem.Please can any one suggest as to how to resolve this issue....
Any help would be highly appreciated.

Hello,
Please check the following suggestions
a) go to se18 -> enter your definition name and see if "Multiple" call check box is ticked in Quality
b)compare your transports since some objects in development may not have found it's way to the quality server
c)Please see if for the same definition,for different filter values...implementations are done...if so,is multiple checkbox marked? in quality also?if you have multiple implementations with the check box not marked..the message conveys u cannot have multiple implementations of the same badi....
d)also check if the filter being passed to the BADI is ok
Hope it was useful in some way
Reward if helpful
Regards
Byju

How to embed servlet filter to an existing website

I want to make an application using java servlet filters and I want to know the possibility of making this application as an add-on where anyone could take this application as it is and attach it to his website without knowing anything about servletes and with a very low programming or no programming effort, is it possible? If yes how and if no what is the alternative?

836522 wrote:
I really cant thank everyone enough for your help, thank you :)
why not proxy? because I don't want the full functionalities of a proxy, so I thought why not to implement a servlet filter to do my task especially that all what I want to do could be easily implemented using the methods provided in servlets/filters. what I am thinking of now is to install servlet container and make it run in the proxy mode so any request to the website I want to protect will be directed first to the servlet then the servlet decide whether to pass this request to website or not, what do you think of this??I am afraid that will either not work or be overly complicated. The problem is with this
so any request to the website I want to protect will be directed first to the servlet then the servlet decide whether to pass this request to website or notHow will the servlet pass on the request to the web site? Since it is not part of the other application, it cannot do a forward or include on the resource. Similarly a chain.doFilter() which is the normal way for the Filter to pass the request along to the end resource will not work.
You can theorotically use a HttpClient from the Filter which will create a new http request to the underlying web site and flush the response received back to the browser. I think using a Proxy is the best bet. I would recommend an apache http server with some custom modules to implement your 'filter' code
ram.

How does high pass filter determine frequency

I Am having a hard time understanding how the high pass filter determines high vs low frequency. What value is it measuring. ? Change in RGB values or Contrast ? I see the words sharpness or blur , but what values determine amount of blurriness or sharpness? Is there and actual frequency being measures or is that just a metaphor To compare it to the audio high pass filter ?
Any insight into the inner workings of this filter is appreciated.

Some further explanations:
Audio signals:
frequency = cycles per second
This is the frequency in the time domain.
An arbitrary signal can be represented by a bundle of harmonic signals (sine, cosine)
plus a DC-part (direct current, non periodical component).
A typical high-pass filter for audio signals:
The cut-off frequency fc is found at the transition between increasing gain
(low frequency) and fixed gain 1.0 (high frequency).
frequency   gain (attenuation)
0.01 fc   0.01
0.10 fc   0.1
1.00 fc   0.707
10.0 fc   1.0
100 fc   1.0
A typical high-pass filter for digital images:
frequency = cycles per unit length or (better) cycles per pixel
This is the frequency in the spatial domain.
The highest frequency is 0.5 cycles per pixel (alternating black and white pixels)
An arbitray row in a digital image can be represented by a bundle of harmonic signals
plus a DC-part.
Each channel R,G,B is filtered individually, one after the other.
Frequency and gain are as above.
A high-pass filter applies an attenuation <<1 to low frequency signal components
and removes the DC-component entirely. This would result in a black background.
Therefore the background is shifted to R=G=B=128 (8bit per channel) or
R=G=B=0.5 (normalized).
Sharp edges contain stronger high frequency components. These are retained.
http://en.wikipedia.org/wiki/High-pass_filter
In this doc we find a simple implementation:
y[0] := x[0]
   for i from 1 to n
     y[i] := a * y[i-1] + a * (x[i] - x[i-1])
   return y
x[i] are values R (or G or B) in a row at column i in the original image
y[i] are values R (or G or B) in the same row at column i after filtering.
Factor (a) contains indirectly the cut-off frequency.
This example does not yet apply the shift to R=G=B=128.
The implementation can be different (non-recursive filter instead of recursive, as above,
higher order instead of first order, using a filter kernel 3*3 or 5*5 pixels instead of working
in each row independently).
I'm not trying to explain how Photoshop works! There are so many alternatives.
Best regards --Gernot Hoffmann

How to implement a filter

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