How to use singloeton factory methods ?

Hi Guys,
Can any one please help me like how to use singleton factory methods in oops? i am very new to OOPS concepts ?
Thanks in advance

PRINTER - part2
METHOD constructor.
    "initial printer cartridge fill
    me->number = i_number.
    me->cartridge = i_units.
    me->cost = me->cartridge * 10.
ENDMETHOD.
METHOD increase_cost.
    cost = cost + i_units.
ENDMETHOD.
METHOD consume_cartrigde.
    cartridge = cartridge - i_units.
ENDMETHOD.
METHOD get_total_cost.
    DATA lo_printer TYPE REF TO lcl_printer.
    LOOP AT it_printers INTO lo_printer.
      r_cost = r_cost + lo_printer->get_cost( ).
    ENDLOOP.
ENDMETHOD.
METHOD get_cost.
    r_cost = cost.
ENDMETHOD.
METHOD get_cartridge.
    r_cartridge = cartridge.
ENDMETHOD.
METHOD get_number.
    r_number = number.
ENDMETHOD.
* helper method to show current state of printers
METHOD show_printers.
    DATA lv_mess   TYPE string.
    DATA lv_number TYPE i.
    DATA lv_cartridge TYPE i.
    DATA lv_cartridge_c TYPE c LENGTH 5.
    DATA lv_cost TYPE i.
    DATA lv_cost_c TYPE c LENGTH 5.
    DATA lv_number_c TYPE c LENGTH 2.
    DATA lo_printer TYPE REF TO lcl_printer.
    LOOP AT it_printers INTO lo_printer.
      lv_number_c = lv_number = lo_printer->get_number( ).
      lv_cost_c = lv_cost = lo_printer->get_cost( ).
      lv_cartridge_c = lv_cartridge = lo_printer->get_cartridge( ).
      CONCATENATE lv_mess 'Printer:' lv_number_c ', cost:' lv_cost_c ', cartridge:' lv_cartridge_c
                  cl_abap_char_utilities=>cr_lf INTO lv_mess SEPARATED BY space.
    ENDLOOP.
    MESSAGE lv_mess TYPE 'I'.
ENDMETHOD.
ENDCLASS.
CLIENT
DATA go_printer TYPE REF TO lcl_printer. "printers
DATA go_job TYPE REF TO lcl_job.          "job
DATA gv_mess TYPE string.
DATA: gv_number TYPE i,
      gv_number_c TYPE c LENGTH 10.
SELECTION-SCREEN BEGIN OF BLOCK bl1 WITH FRAME.
PARAMETERS: pa_print TYPE i OBLIGATORY, "printer number
            pa_units TYPE i DEFAULT 100. "initial printer filling
SELECTION-SCREEN PUSHBUTTON /10(15) addp USER-COMMAND fcadd VISIBLE LENGTH 15.
SELECTION-SCREEN PUSHBUTTON /10(15) refil USER-COMMAND fcref VISIBLE LENGTH 15.
SELECTION-SCREEN PUSHBUTTON /10(15) show USER-COMMAND fcshow VISIBLE LENGTH 15.
SELECTION-SCREEN PUSHBUTTON /10(15) print USER-COMMAND fcprnt VISIBLE LENGTH 15.
SELECTION-SCREEN PUSHBUTTON /10(15) total USER-COMMAND fctot VISIBLE LENGTH 15.
SELECTION-SCREEN END OF BLOCK bl1.
SELECTION-SCREEN BEGIN OF BLOCK bl2 WITH FRAME.
PARAMETERS: pa_col   TYPE c1,
            pa_pages TYPE i,
            pa_numb TYPE i. "to which printer you want the job be send to
SELECTION-SCREEN END OF BLOCK bl2.
INITIALIZATION.
addp = 'Add printer'.
show = 'Show printers'.
print = 'Print'.
total = 'Total cost'.
refil = 'Refill'.
AT SELECTION-SCREEN.
CLEAR: gv_number, gv_number_c, gv_mess.
CASE sy-ucomm.
    WHEN 'FCADD'.
      go_printer = lcl_printer=>factory( i_number = pa_print
                                         i_units = pa_units ).
    WHEN 'FCSHOW'.
      IF go_printer IS NOT BOUND.
        MESSAGE 'Add at least one printer first' TYPE 'E'.
      ELSE.
        go_printer->show_printers( ).
      ENDIF.
    WHEN 'FCPRNT'.
      IF pa_pages IS INITIAL.
        MESSAGE 'Provide number of pages' TYPE 'E'.
      ENDIF.
      CREATE OBJECT go_job EXPORTING i_pages = pa_pages i_color = pa_col.
      IF lcl_printer=>get_printer( pa_numb ) IS NOT BOUND.
        gv_number_c = pa_numb.
        condense gv_number_c.
        CONCATENATE 'Printer' gv_number_c 'doesn`t exist, select correct one' INTO gv_mess SEPARATED BY space.
        MESSAGE gv_mess TYPE 'E'.
      ELSE.
        go_printer->print( i_number = pa_numb
                           io_job   = go_job ).
      ENDIF.
    WHEN 'FCTOT'.
      IF go_printer IS BOUND.
        gv_number_c = gv_number = go_printer->get_total_cost( ).
      ENDIF.
      CONCATENATE 'Total cost of all printers for printing and initial cartridge filling is: ' gv_number_c INTO gv_mess
                  SEPARATED BY space.
      MESSAGE gv_mess TYPE 'I'.
    WHEN 'FCREF'.
      IF lcl_printer=>get_printer( pa_print ) IS NOT BOUND.
        gv_number_c = pa_print.
        CONCATENATE 'Printer doesn`t exist' gv_number_c INTO gv_mess SEPARATED BY space.
        MESSAGE gv_mess TYPE 'E'.
      ELSE.
        go_printer->fill_cartridge( i_number = pa_print
                                    i_units = pa_units ).
      ENDIF.
ENDCASE.
Regards
Marcin

Similar Messages

Multiple ALV display using SALV(Factory method)...

Hello Experts,
Please provide me any examples on how to display multiple ALV
displays in a screen using SALV(Factory method).
Hope you can help me guys.
Thank you and take care!

Hi Viraylab,
Kindly check the program below, this will help you..
*& Report Z101754_REPORT
REPORT z101754_report.
TABLES: zvbak_101754,zvbap_101754,mara.
TYPE-POOLS: slis.
DATA : i_fieldcat TYPE slis_t_fieldcat_alv.
DATA: FLDNAME(24).
DATA : BEGIN OF itab_zvbap OCCURS 0,
       zvbeln LIKE zvbap_101754-zvbeln,
zposnr LIKE zvbap_101754-zposnr,
zmatnr LIKE zvbap_101754-zmatnr,
zbrgew LIKE zvbap_101754-zbrgew,
zgi_qty LIKE zvbap_101754-zgi_qty,
zinv_qty LIKE zvbap_101754-zinv_qty,
       END OF itab_zvbap.
SELECTION-SCREEN BEGIN OF BLOCK block1 WITH FRAME TITLE text-t01.
SELECT-OPTIONS : s_zvbeln FOR zvbak_101754-zvbeln,
                 s_zkunwe FOR zvbak_101754-zkunwe,
                 s_zerdat FOR zvbak_101754-zerdat,
                 s_zmatnr FOR zvbap_101754-zmatnr.
SELECTION-SCREEN END OF BLOCK block1.
SELECTION-SCREEN: BEGIN OF BLOCK block2 WITH FRAME TITLE t02.
PARAMETERS     : invoiced AS CHECKBOX,
                 s_gi AS CHECKBOX .
SELECTION-SCREEN: END OF BLOCK block2.
SELECTION-SCREEN: BEGIN OF BLOCK block3 WITH FRAME TITLE t03.
PARAMETERS     : alv_list RADIOBUTTON GROUP g1,
                 alv_grid RADIOBUTTON GROUP g1,
                 s_class RADIOBUTTON GROUP g1.
SELECTION-SCREEN: END OF BLOCK block3.
Screen Field Validation event
AT SELECTION-SCREEN ON s_zvbeln.
SELECT SINGLE *
   FROM zvbak_101754 WHERE zvbeln IN s_zvbeln.
IF sy-subrc NE 0.
    MESSAGE e000(z754).
ENDIF.
AT SELECTION-SCREEN ON s_zkunwe.
SELECT SINGLE *
   FROM zvbak_101754 WHERE zkunwe IN s_zkunwe.
IF sy-subrc NE 0.
    MESSAGE e001(z754).
ENDIF.
AT SELECTION-SCREEN ON s_zerdat.
SELECT SINGLE *
     FROM zvbak_101754 WHERE zerdat IN s_zerdat.
IF sy-subrc NE 0.
    MESSAGE e002(z754).
ENDIF.
AT SELECTION-SCREEN ON s_zmatnr.
SELECT SINGLE *
   FROM zvbap_101754    WHERE zmatnr IN s_zmatnr.
IF sy-subrc NE 0.
    MESSAGE e003(z754).
ENDIF.
Start-Of-Selection Event
START-OF-SELECTION.
PERFORM select-data.
End-Of-Selection Event
END-OF-SELECTION.
PERFORM display.
*&      Form select-data
      text
--> p1        text
<-- p2        text
FORM select-data .
SELECT zvbeln zposnr zmatnr zbrgew zgi_qty zinv_qty
     INTO CORRESPONDING FIELDS OF TABLE itab_zvbap
     FROM zvbap_101754
     WHERE zvbeln IN s_zvbeln.
ENDFORM.                    " select-data3
TOP-OF-PAGE.
AT LINE-SELECTION.
FORMAT HOTSPOT.
*GET THE FIELD NAME ON LINE SELECTION
GET CURSOR FIELD FLDNAME . "value field_value.
IF FLDNAME = 'itab_zvbap-zvbeln'.
SET PARAMETER ID 'BES' FIELD itab_zvbap-zvbeln.
CALL TRANSACTION 'ZVA01_101754'.
ENDIF.
*&      Form DISPLAY
      text
--> p1        text
<-- p2        text
FORM display .
IF s_class ='X'.
    PERFORM display_header.
    LOOP AT itab_zvbap.
      WRITE : / sy-vline,
              itab_zvbap-zvbeln ,
              13 sy-vline,
              itab_zvbap-zposnr ,
              30 sy-vline,
              itab_zvbap-zmatnr ,
              45 sy-vline,
              itab_zvbap-zbrgew UNIT mara-meins ,
              65 sy-vline,
              itab_zvbap-zgi_qty UNIT mara-meins,
              85 sy-vline,
              itab_zvbap-zinv_qty UNIT mara-meins,
              105 sy-vline,
              / sy-uline(105).
    ENDLOOP.
ENDIF.
*&     Creating the fieldcatalog.
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
   EXPORTING
     i_program_name               = sy-repid
     i_internal_tabname           = 'ITAB_ZVBAP'
I_STRUCTURE_NAME             =
I_CLIENT_NEVER_DISPLAY       = 'X'
     i_inclname                   = sy-repid
I_BYPASSING_BUFFER           =
I_BUFFER_ACTIVE              =
    CHANGING
      ct_fieldcat                  = i_fieldcat
EXCEPTIONS
inconsistent_interface       = 1
program_error                = 2
OTHERS                       = 3
IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
           WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
IF alv_list = 'X'.
    CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
     EXPORTING
I_INTERFACE_CHECK              = ' '
I_BYPASSING_BUFFER             =
I_BUFFER_ACTIVE                = ' '
       i_callback_program             = sy-repid
       i_callback_pf_status_set       = ' '
       i_callback_user_command        = 'USER_COMMAND '
I_STRUCTURE_NAME               =
IS_LAYOUT                      =
       it_fieldcat                    = i_fieldcat
IT_EXCLUDING                   =
IT_SPECIAL_GROUPS              =
IT_SORT                        =
IT_FILTER                      =
IS_SEL_HIDE                    =
I_DEFAULT                      = 'X'
I_SAVE                         = ' '
IS_VARIANT                     =
IT_EVENTS                      =
IT_EVENT_EXIT                  =
IS_PRINT                       =
IS_REPREP_ID                   =
I_SCREEN_START_COLUMN          = 0
I_SCREEN_START_LINE            = 0
I_SCREEN_END_COLUMN            = 0
I_SCREEN_END_LINE              = 0
IR_SALV_LIST_ADAPTER           =
IT_EXCEPT_QINFO                =
I_SUPPRESS_EMPTY_DATA          = ABAP_FALSE
IMPORTING
E_EXIT_CAUSED_BY_CALLER        =
ES_EXIT_CAUSED_BY_USER         =
      TABLES
        t_outtab                       = itab_zvbap[]
EXCEPTIONS
   program_error                  = 1
   OTHERS                         = 2
    IF sy-subrc <> 0.
      MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
              WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
    ENDIF.
ENDIF.
IF alv_grid = 'X'.
    CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
I_INTERFACE_CHECK                 = ' '
I_BYPASSING_BUFFER                = ' '
I_BUFFER_ACTIVE                   = ' '
       i_callback_program                = sy-repid
    i_callback_pf_status_set          = ' '
    i_callback_user_command           = 'USER_COMMAND '
I_CALLBACK_TOP_OF_PAGE            = ' '
I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
I_CALLBACK_HTML_END_OF_LIST       = ' '
I_STRUCTURE_NAME                  =
I_BACKGROUND_ID                   = ' '
I_GRID_TITLE                      =
I_GRID_SETTINGS                   =
IS_LAYOUT                         =
    it_fieldcat                       = i_fieldcat
IT_EXCLUDING                      =
IT_SPECIAL_GROUPS                 =
IT_SORT                           =
IT_FILTER                         =
IS_SEL_HIDE                       =
I_DEFAULT                         = 'X'
I_SAVE                            = ' '
IS_VARIANT                        =
IT_EVENTS                         =
IT_EVENT_EXIT                     =
IS_PRINT                          =
IS_REPREP_ID                      =
I_SCREEN_START_COLUMN             = 0
I_SCREEN_START_LINE               = 0
I_SCREEN_END_COLUMN               = 0
I_SCREEN_END_LINE                 = 0
I_HTML_HEIGHT_TOP                 = 0
I_HTML_HEIGHT_END                 = 0
IT_ALV_GRAPHICS                   =
IT_HYPERLINK                      =
IT_ADD_FIELDCAT                   =
IT_EXCEPT_QINFO                   =
IR_SALV_FULLSCREEN_ADAPTER        =
IMPORTING
E_EXIT_CAUSED_BY_CALLER           =
ES_EXIT_CAUSED_BY_USER            =
   TABLES
     t_outtab                          = itab_zvbap[]
EXCEPTIONS
   program_error                     = 1
   OTHERS                            = 2
    IF sy-subrc <> 0.
      MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
              WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
    ENDIF.
ENDIF.
ENDFORM.                    " DISPLAY
*&      Form display_header
      text
--> p1        text
<-- p2        text
FORM display_header .
WRITE : / sy-vline,
              'ORDER NO',
              13 sy-vline,
               'ITEM NO',
              30 sy-vline,
               'MATERIAL NO',
              45 sy-vline,
               'ORDER QTY',
              65 sy-vline,
               'GI QTY',
              85 sy-vline,
              'INVOICED QTY',
              105 sy-vline,
              / sy-uline(105).
ENDFORM.                    " display_header
Please let me know if you have any doubt.
Regards,
Amit.

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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.
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"Exception in thread "main" java.lang.ArrayIndexOutOfBoundsExce
at TaxEvolution.findTheHighest(TaxEvolution.java:31)
at TaxEvolutionClient.main(TaxEvolutionClient.java:25)"
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HI,
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Regards
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Edited by: seventyros on May 5, 2011 9:32 AM

Hi tryos,
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check this...
http://help.sap.com/saphelp_nw04s/helpdata/en/fd/be5b4150b38147e10000000a1550b0/content.htm
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Select All in table
if lo_el_it_lips->is_selected ( flag = abap_true ).
endif.
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http://sharepoint.stackexchange.com/questions/80074/how-can-i-use-the-current-language-as-a-variable-in-my-masterpage
https://msdn.microsoft.com/en-us/library/ms476046%28v=office.12%29.aspx
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Here is the web.xml:
<servlet>
<servlet-name>HelloServlet2</servlet-name>
<display-name>HelloServlet2</display-name>
<servlet-class>com.a2i.industrial.servlet.HelloServlet2</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet2</servlet-name>
<url-pattern>/HelloServlet2/*</url-pattern>
</servlet-mapping>
Here is the calling code from HelloServlet2:
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
RequestDispatcher dispatcher= getServletContext().getRequestDispatcher("/hello.jsp");
dispatcher.forward(req, res);
Here is the portlet definition:
<portlet class="oracle.portal.provider.v2.DefaultPortletDefinition">
<id>2</id>
<name>HelloServlet2</name>
<title>Hello Servlet2</title>
<shortTitle>Hello Servlet2</shortTitle>
<description>This is the "hello world" sample implemented using Java Servlets and the extensible renderer architecture.</description>
<timeout>10000</timeout>
<timeoutMessage>Hello Servlet timed out</timeoutMessage>
<acceptContentType>text/html</acceptContentType>
<renderer class="oracle.portal.provider.v2.render.RenderManager">
<contentType>text/html</contentType>
<autoRedirect>true</autoRedirect>
<showPage>/servlet/HelloServlet2</showPage>
</renderer>
</portlet>
Here is the stack trace:
7/15/03 10:43 AM industrial: JspServlet: unable to dispatch to requested page: java.io.FileNotFoundException: C:\ora9iasp\j2ee\OC4J_Portal\applications\_industrial\industrial\servlet\HelloServlet2 (The system cannot find the path specified)
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     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:523)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:269)
     at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:219)
     at com.a2i.industrial.servlet.HelloServlet2.doGet(HelloServlet2.java:21)
     at com.a2i.industrial.servlet.HelloServlet2.doPost(HelloServlet2.java:14)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:283)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:59)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:523)
     at com.evermind.server.http.ServletRequestDispatcher.include(ServletRequestDispatcher.java:108)
     at oracle.portal.provider.v2.render.http.ResourceRenderer.renderBody(Unknown Source)
     at oracle.portal.provider.v2.render.RenderManager.render(Unknown Source)
     at oracle.portal.provider.v2.DefaultPortletInstance.render(Unknown Source)
     at oracle.webdb.provider.v2.adapter.soapV1.ProviderAdapter.showPortlet(Unknown Source)
     at oracle.webdb.provider.v2.adapter.soapV1.ProviderAdapter.handleHttp(Unknown Source)
     at java.lang.reflect.Method.invoke(Native Method)
     at oracle.webdb.provider.v2.adapter.SOAPServlet.doHTTPCall(Unknown Source)
     at oracle.webdb.provider.v2.adapter.SOAPServlet.service(Unknown Source)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:59)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:523)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:269)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:735)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:151)
     at com.evermind.util.ThreadPoolThread.run(ThreadPoolThread.java:64)
7/15/03 10:43 AM industrial: ERROR: ResourceRenderer.renderBody - Resource "/servlet/HelloServlet2" returned HTTP Status: 404. Error message: OracleJSP:
java.io.FileNotFoundException: C:\ora9iasp\j2ee\OC4J_Portal\applications\_industrial\industrial\servlet\HelloServlet2 (The system cannot find the path specified). Content returned follows....

Thanks for you help David. I changed my code from getServletContext().getRequestDispatcher(jspPage).forward(req, res) to getServletContext().getNamedDispatcher(jspPage).forward(req, res). It worked but I run into the same problem with jsp:include.
I am using the July 2003 of the PDK. I followed the direction for installing version 2 but I did not redeploy with the new jpdk.ear since one was already deployed. After redeploying with the new jpdk.ear, it fixed the jsp:include problem I was having. The problem with using getServletContext().getRequestDispatcher(jspPage).forward(req, res) STILL exist. I am not sure what the deal is.
Oh, I also tried the code below and it doesn't work.
path = req.getContextPath() + jspPage
getServletContext().getRequestDispatcher(path).forward(req, res)
In any case, using getNamedDispatcher() is working fine. I am still curious about getRequestDispatcher() though.

How to use multi async method in Windows Runtime Component (C#)

I want to migrate an async method into Windows Runtime Component.
CookieContainer cc = await utility.GetCookieContainer();
But the content of async method still contains async methods.
public async Task<CookieContainer> GetCookieContainer()
if (stsAuthToken != null)
if (DateTime.Now > stsAuthToken.Expires)
this.stsAuthToken = await GetMsoStsSAMLToken();
AuthCookies cookies = await GetAuthCookies(this.stsAuthToken);
CookieContainer cc = new CookieContainer();
Cookie samlAuthCookie = new Cookie("FedAuth", cookies.FedAuth)
Path = "/",
Expires = this.stsAuthToken.Expires,
Secure = cookies.Host.Scheme.Equals("https"),
HttpOnly = true,
Domain = cookies.Host.Host
cc.Add(this.spSiteUrl, samlAuthCookie);
Cookie rtFACookie = new Cookie("rtFA", cookies.RtFA)
Path = "/",
Expires = this.stsAuthToken.Expires,
Secure = cookies.Host.Scheme.Equals("https"),
HttpOnly = true,
Domain = cookies.Host.Host
cc.Add(this.spSiteUrl, rtFACookie);
this.cookieContainer = cc;
And even GetMsoStsSAMLToken and GetAuthCookies contain async methods...
How to migrate it?

Hi Matt,
I'm sorry for my unclear description.
My WinRT Component is for Javascript. If I use folloiong codes, error occurs.
public static async Task<bool> GetInternal(string url, string username, string password)
bool r = await AuthUtility.Create(new Uri(url), username, password);
return r;
The error is
SharePointWindowsRuntimeComponent.Common.GetInternal(System.String, System.String, System.String)' has a parameter of type 'System.Threading.Tasks.Task<System.Boolean>' in its signature. Although this generic type is not a valid Windows Runtime type,
the type or its generic parameters implement interfaces that are valid Windows Runtime types. Consider changing the type 'Task' in the method signature to one of the following types instead: Windows.Foundation.IAsyncAction, Windows.Foundation.IAsyncOperation,
or one of the other Windows Runtime async interfaces. The standard .NET awaiter pattern also applies when consuming Windows Runtime async interfaces. Please see System.Runtime.InteropServices.WindowsRuntime.AsyncInfo for more information about converting managed
task objects to Windows Runtime async interfaces.
Some articles said, Task<T> is not WinRT type and should be converted to IAsyncOperation<T>. Only stirng, int, bool, object, array of above types and some 'simple' type can be used. (The
related article)
Then I try to convert Task<bool>, but the codes don't work.
Above is why I ask this question.
If async method can be used in WinRT component directly, please let me know why I got above error.
Thanks.

How to use the readLine() method when reading data from a URL?

Hello,
I have a URL which contains text input.
The only way to get the data from this URL is by opening a URL connection to it.
I would like to get the data from this URL but at the same time I would like to be able to use readLine() method of BufferedReader in order to read the data line by line.
My question is how do I combine between these two requirements in order to reed the data from the URL?
Roy

Hello Roy,
can you try out this code.
URL yahoo = new URL("http://www.yahoo.com/");
        URLConnection yc = yahoo.openConnection();
        BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                yc.getInputStream()));
        String inputLine;
        while ((inputLine = in.readLine()) != null)
            System.out.println(inputLine);
        in.close();
Regards,
Mohan R

Multiple ALV display in one screen using SALV(Factory method)...

Hello Experts,
I tried using the old 'REUSE_ALV_BLOCK_LIST_APPEND' but it does not suit my
requirement. So will it be possible to display multiple ALV display(block) using
SALV?

check the sample code..
REPORT zsalv_demo_multiple.
DATA: salv1 TYPE REF TO cl_salv_table,
      salv2 TYPE REF TO cl_salv_table,
      salv3 TYPE REF TO cl_salv_table.
DATA: g_custom TYPE REF TO cl_gui_custom_container,
o_splitter    TYPE REF TO cl_gui_splitter_container,
o_grid1 TYPE REF TO cl_gui_container,
o_grid2 TYPE REF TO cl_gui_container,
o_grid3 TYPE REF TO cl_gui_container.
DATA: it_flight TYPE STANDARD TABLE OF sflight,
      it_carr TYPE TABLE OF scarr,
      it_book TYPE TABLE OF sbook.
START-OF-SELECTION.
SELECT * FROM sflight
INTO TABLE it_flight
UP TO 20 ROWS.
SELECT * FROM scarr
INTO TABLE it_carr
UP TO 20 ROWS.
SELECT * FROM sbook
INTO TABLE it_book
UP TO 20 ROWS.
CALL SCREEN 100.
*&      Module STATUS_0100 OUTPUT
*       text
MODULE status_0100 OUTPUT.
SET PF-STATUS 'ABC'.
CREATE OBJECT g_custom
EXPORTING container_name = 'CONT'.
CREATE OBJECT o_splitter
EXPORTING parent = g_custom
rows    = 3
columns = 1.
CALL METHOD o_splitter->get_container
    EXPORTING
      row       = 1
      column    = 1
    RECEIVING
      container = o_grid1.
CALL METHOD o_splitter->get_container
    EXPORTING
      row       = 2
      column    = 1
    RECEIVING
      container = o_grid2.
CALL METHOD o_splitter->get_container
    EXPORTING
      row       = 3
      column    = 1
    RECEIVING
      container = o_grid3.
cl_salv_table=>factory(
    EXPORTING
      r_container    = o_grid1
    IMPORTING
      r_salv_table   = salv1
    CHANGING
      t_table        = it_flight
cl_salv_table=>factory(
    EXPORTING
      r_container    = o_grid2
    IMPORTING
      r_salv_table   = salv2
    CHANGING
      t_table        = it_carr
cl_salv_table=>factory(
    EXPORTING
      r_container    = o_grid3
    IMPORTING
      r_salv_table   = salv3
    CHANGING
      t_table        = it_book
CALL METHOD salv1->display.
CALL METHOD salv2->display.
CALL METHOD salv3->display.
ENDMODULE.                 " STATUS_0100 OUTPUT
*&      Module USER_COMMAND_0100 INPUT
*       text
MODULE user_command_0100 INPUT.
CASE sy-ucomm.
    WHEN 'BACK'.
      LEAVE TO SCREEN 0.
ENDCASE.
ENDMODULE.                 " USER_COMMAND_0100 INPUT
Flow Logic..
PROCESS BEFORE OUTPUT.
MODULE STATUS_0100.
PROCESS AFTER INPUT.
MODULE USER_COMMAND_0100.
in the Screen i placed a custom control and named it as CONT

How to use singloeton factory methods ?

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