How to use native method

how to use native methods

----- BEGIN CANNED RESPONSE -----
Download and read Sheng Liang's book, ftp://ftp.javasoft.com/books/specs/jni.pdf
Read the JNI specs on java.sun.com site ( http://java.sun.com/j2se/1.4.2/docs/guide/jni/index.html )
Beware with the JNI tutorial on the java.sun.com site - it is slightly outdated, and the samples need modifications to compile
----- END CANNED RESPONSE -----

Similar Messages

  • How could I use native methods in CDC-Personal Profile?

    Hi, I know that CDC-Personal profile doesn�t support JNI (I think so), but i think that must be a way to use native methods in an application written with Personal Profile. Thank you very much

    I'm esperiecing the JBluez executing in a CVM for Linux...all seems work well, and i know that only the CLDC doesn't support JNI but CDC support it. You only need to follow theinstructoins valids for use JNI with J2SE, if i'haven't readed bad, CDC is Java 1.3 compliant...
    I hope this could clarify your ideas
    Andrew

  • How to Use native keyword in java programming

    Hi ,
    I am using JDK 1.6.0_11 , and i was trying to create a java program using "native" keyword ,
    i got the sample code for the same from the site : - http://www.javaworld.com/javaworld/javatips/jw-javatip23.html
    But when i type this command " C:\javah -stubs Happy " following error occurs
    " Error: JNI does not require stubs, please refer to the JNI documentation. "
    then typed " c:\javah -jni Happy" without any error .
    After that i wrote a HappyImpl.c as mentioned in the above tutorial
    #include <StubPreamble.h> /* Standard native method stuff. */
    #include "Happy.h" /* Generated earlier. */
    #include &ltstdio.h> /* Standard C IO stuff. */
    void Happy_printText (struct HHappy *this)
    puts ("Happy New Year!!!");
    then it is not compling and error is
    "unable to open included file StubPreamble.h file
    unable to open included file Happy.h file "
    Please help me . i want to use native method , i did exactly the same in tutorial at above link.
    Thanks & Regards
    Mannat

    you do need to know how to use your C compiler... It quite clearly can't find those files which indicates that you didn't tell it where to find them.

  • How to use protected method in jsp code

    Could anyone tell me how to use protected method in jsp code ...
    I declare a Calendar class , and I want to use the isTimeSet method ,
    But if I write the code as follows ..
    ========================================================
    <%
    Calendar create_date = Calendar.getInstance();
    if (create_date.isTimeSet) System.out.println("true");
    %>
    ============================================================
    when I run this jsp , it appears the error wirtten "isTimeSet has protected access in java.util.Calendar"

    The only way to access a protected variable is to subclass.
    MyCalendar extends Calendar
    but I doubt you need to do this. If you only want to tell if a Calendar object has a time associated with it, try using
    cal.isSet( Calendar.HOUR );

  • How to use the method for field-exit to trigger the workflow?

    Dear all,
         I want the workflow to trigger , when ever the check box for DELIVERY COMPLETED is checked in ME22N .
         I have developed a method in SE18 for the corresponding field and defined function module SWE_EVENT_CREATE with BOR bus2012 and event CHANGED.
        Now how to use this method to make my workflow to trigger?Shall I create an event in delegated bus2012 and can I call this method?
    Thanks and regards,
    S.Suresh

    Hi
    You want to place your method which is defined for particular filed.right?
    For that you can go for BADI. First you check whether any badi is getting called form that tcode ME22N. Then to place your method, implement that BADI.  So whenever that BADI is getting called, it will call your event. Through Event workflow will be getting triggered.
    Regards,
    Hemalatha.

  • How to use the method "getChildrenRemoved()" declared in ElementChange?

    How to use the method "getChildrenRemoved()" declared in DocumentEvent.ElementChange?

    I have tried to use it,but the code below alway say "Yes"....
    I really have no ideas about why ec is always a null.
    public void removeUpdate(DocumentEvent ee) {
           DocumentEvent.ElementChange ec = ee.getChange(doc.getDefaultRootElement());
           if(ec == null)
              System.out.println("Yes");
                     }

  • How to use secondary method in workflow?

    Hi friends,
    can anyone plz let me know how to use secondary methods in workflow? it would be helpful if u explain with an example..
    thanks and regards,
    Arun.S

    Hi Arun Kumar,
    The Sec Method can be used in the user decision step. The secondary methods are executed along with the user decision step. You have 3 options. Either execute a secondary method before executing the user decision step or after execution of user decision step or while executing the user decision.
    For this define the methods either in Methods before execution of workitem execution to execute it before user decision step or Methods after execution of workitem so as to execute it after the execution of user decision.
    In order to execute a method along with user decision step execution use secondary methods (amodal call.)
    Let me know if you have any queries.
    Regards,
    Raj

  • How to use this method in JSTL?help me please!

    I know I can use "<C:set >" like as
    <c:set var="clabel3" value="${portalCustomizeBean.portalPage}"/> ,
    but now I want to use one method of portalCustomizeBean object not a attribute of it !!!!!
    who would tell me how to use?
    this is wrong in my code:
    <c:set var="clabel" value="${portalCustomizeBean.currentPageLabel}"/>
    <c:set var="clabel3" value="${portalCustomizeBean.toEntitiesExceptSpaceEscape(clabel)}"/>
    but how to use "toEntitiesExceptSpaceEscape" method in JSTL?????

    Why can't you just assign the method's return value to a variable and then print that? A bit of scriptlet code will do the trick. (As much as we all hate to use scriptlet code.)
    I believe you'll be able to do what you want in the 1.1 standard JSTL, but for now this will suffice. - MOD

  • How to use getContent() method in custom JSP Provider to display a HTML Pag

    Hi,
    If anybody knows how to use getContent() method to use in custom jsp providers (developed by ourselves) so that it can be used to retrieve a jsp page (a simple html page) ..
    I want the code in the provider java file to for the getContent method...
    Pls. get back to me asap....if any body has implemented a custom jsp provider...as it's urgent...
    I have alreday placed the JSP file in the directory structure /etc/opt/SUNWps/desktop/default/channel_dir..But still the jsp is not being displayed..
    Pls get me the getContent() method code to retrive the JSP file..
    satyabrata

    Hi,
    You don't have to do anything in the custom JSPProvider's getContent method except the call {  return super.getContent(request,response); } . If all you want is just to show your jsp, then create a channel from the default JSPProvider, and edit the property contentPage of that channel from samplecontent.jsp to your jsp name, save the changes and login again. You should see your JSP.
    Sanjeev.

  • How to use a method in sequence diagram from a class diagram

    Hello, can someone tell me how to use the method from class diagram in sequence diagram? so far i only can add a classifier to the object lifeline but i still cannot add the method from the class...
    thx

    Now that Web Services is around, I'd look at possibly implement a Web Service call in your applet, which can then be given back any object(s) on return. Set up your server side to handle Web Service calls. In this way, you can break the applet out into an application should you want to (with very little work) and it will still function the same

  • How to use these method of class CL_GUI_PDFVIEWER

    how to use these methods in the class CL_GUI_PDFVIEWER
    1) CREATE_ANNOTATION
    2) GET_ANNOTATION_INFO
    3) SET_ANNOTATION_SETTINGS

    Hi,
       Refer
    https://forums.sdn.sap.com/click.jspa?searchID=10926572&messageID=1803295
    Regards
    Kiran

  • How to use addPasswordToPasswordHistory method

    Hi
    Can some one please tell me how to use the method addPasswordToPasswordHistory from the class WSUser.I have a requirement to add user password to password history whenever user changes his password through my custom password change workflow.Custom workflow changes the password in idm but it will not add the previous password to the password history.
    It will be helpfull if you paste the code to use this method
    Regards
    Karthik P

    Hi Amar
    Thanks for the reply
    I tried setting the password through setPassword method but its giving an exception ==>java.lang.NoSuchMethodException: java.lang.String.setPassword(com..waveset.util.EncrypteData)
    Then I decrypted the password but no luck getting ==>java.lang.NoSuchMethodException: java.lang.String.setPassword() exception.
    Am i missing something here.do i need to pass the encrypted password in byte array format? if yes how to do that.
    Here encrypted password is coming from a form.
    regards
    karthik p
    .

  • How to use protected method of a class in application

    Hi,
      will u please tell me how to use protected method of class in application. (class:cl_gui_textcontrol, method:limit_text)
    Thanks in advance,
    Praba.

    Hi Prabha,
    You can set the maximum number of characters in a textedit control in the CREATE OBJECT statement itself.
    Just see the first parameter in the method . I mean MAX_NUMBER_CHARS. Just set that value to the required number.
    Eg:
    data: edit type ref to CL_GUI_TEXTEDIT.
    create object edit
      exporting
        MAX_NUMBER_CHARS       = 10
       STYLE                  = 0
       WORDWRAP_MODE          = WORDWRAP_AT_WINDOWBORDER
       WORDWRAP_POSITION      = -1
       WORDWRAP_TO_LINEBREAK_MODE = FALSE
       FILEDROP_MODE          = DROPFILE_EVENT_OFF
        parent                 = OBJ_CUSTOM_CONTAINER
       LIFETIME               =
       NAME                   =
      EXCEPTIONS
        ERROR_CNTL_CREATE      = 1
        ERROR_CNTL_INIT        = 2
        ERROR_CNTL_LINK        = 3
        ERROR_DP_CREATE        = 4
        GUI_TYPE_NOT_SUPPORTED = 5
        others                 = 6
    IF sy-subrc <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
               WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
    In this case, the max: number of characters will be set to 10.
    I hope your query is solved.
    Regards,
    SP.

  • How to use set_encoding method to set encoding in ABAP Mapping

    Hi All,
      Can anyone please let me know how to use set_encoding method in ABAP Mapping to set encoding.
      Any help would be greatly appreciable.
    Regards,
    Dinakar

    Hi Stefan,
    Thanks for your info. Let me try in ABAP Forum.
    Regards,
    Dinakar

  • How to use " toFront() " method in java application and in which package or

    How to use " toFront() " method in java application and in which package or class having this toFront() method.if anybody know pl. send example.

    The API documentation has a link at the top of every page that says "Index". If you follow that and look for toFront(), you will find it exists in java.awt.Window and javax.swing.JInternalFrame.
    To use it in a Java application, create an object x of either of those two classes and write "x.toFront();".

Maybe you are looking for

  • "Module Domains" confusion

    Dear all, I'm currently playing around with Flex modules api and got very confused with the "Module Domains" section on the Adobe docs. It's under: Adobe Flex 3 Help -> Advanced Flex Programming -> Creating Modular Applications -> Modular application

  • Problem with a flash site...

    Hi I've got a myspace, which has a www.lovemyflash.com layout on it. All was working well untill a few days ago. It stopped animating just for me on my computer. I also can not view the www.lovemyflash.com website anymore however know that it is view

  • Upgrading from DP 2.3 to Quad 8 core

    My expectation is that I should expect to see a major improvement in speed and an increase in how many plugs I can open without having to freeze anything. Future Specs: Intel 8 core 2.8 to 3.0 6 Gigs Ram 4 1 TB drives What should I expect? Thanks for

  • Creating help files from PDF

    I am evaluating RoboHelp as a possible way to create help files (probably will end up being .CHM files). We'd like to be able to go from the files used for our printed documentation, which are generated using LaTeX and output as PDF files. We use LaT

  • Just downloaded an update on my macbook and now the screen is black

    just downloaded an update on my macbook pro through the app store (March 20, 2015) and now I cant get into my computer. It will start and turn off but the screen is black. It flashes a white screen briefly and I can see a download bar but I cannot co