How to get a Class object with a generic type of list

Hi,
I want to get an instance of a class which is of type List<ABC>. How can I get that ?
What I tried was Class c = List<ABC>.class , bu this is not compiling. I can get new ArrayList<ABC>().getClass() , but the type of that class would be Class<? extends ArrayList<ABC>> but not what I want Class<? extends List<ABC>> ...
Thanks in Advance.
Bhargava

Thanks for so many responses. I understand that you can not get a class instance of type Class<List<E>>. Am I correct?
My use case was something like this:
Class X implements Y<SrcType, DescType> {
  public DestType transform(SrcType src) { ---- }
}Now I want to write a factory which maintains a list of implemenrations of interface Y in a map. For e.g. {List(SrcType,DestType) -> X}. This factory provides one method with the following signature:
Class Yfactory {
   public Y transform(SrcType o, Class destType) {
    //This figures out which transformer to apply based on SrcType and destType and gives it back.
}Now, there is one case where a transformer transforms from type A to List<B> (X implements Y<A, List<B>>) . How should I add it to the map in factory and how do I call the factory's transform method so that it choose this transformer?

Similar Messages

  • How to  get the profile object in simple java class  (Property accessor)

    Hi All,
    Please guide me how to get the profile object in simple java class (Property accessor) which is extending the RepositoryPropertyDescriptor.
    I have one requirement where i need the profile object i.e i have store id which is tied to profile .so i need the profile object in the property accessor of the SKU item descriptor property, which is extending RepositoryPropertyDescriptor.
    a.I dont have request object also to do request.resolvename.
    b.It is not a component to create setter and getter.It is simple java class which is extending the RepositoryPropertyDescriptor.
    Advance Thanks.

    Iam afraid you might run into synchronization issues with it. You are trying to get/set value of property of a sku repository item that is shared across various profiles.
    Say one profile A called setPropertyValue("propertyName", value).Now another profile B accesses
    getPropertyValue() {
    super.getPropertyValue() // Chance of getting value set by Profile A.
    // Perform logic
    There is a chance that profile B getting the value set by Profile A and hence inconsistency.
    How about doing this way??
    Create PropertyDescriptor in Profile (i.e user item descriptor), pass the attribute CustomCatalogTools in userProfile.xml to that property.
    <attribute name="catalogTools" value="atg.commerce.catalog.CustomCatalogTools"/>
    getPropertyValue()
    //You have Profile item descriptor and also storeId property value.
    // Use CustomCatalogTools.findSku();
    // Use storeId, profile repository item, sku repository item to perform the logic
    Here user itemdescriptor getPropertyValue/setPropertyValue is always called by same profile and there is consistency.
    -karthik

  • How to get the class name of a page in oracle apex

    Hi All,
    Can anyone please let me know how we can get the class name of a page or region in oracle apex? I would also like to know how we get the DOM object ID for particular item.
    I appreciate any help on this.
    Regards
    Raj

    RajEndiran wrote:
    Can anyone please let me know how we can get the class name of a page or region in oracle apex?What do you mean with class name? The name of the template (e.g. the css style class name)?
    I would also like to know how we get the DOM object ID for particular item.Use firebug or inspect the source code of the rendered page to see the object IDs. Other then then, the typical ID of page items is the name of the item. For regions you can set your own ID.

  • How to get the Class name of an API method?

    Like most of us, it's difficult to know where every method within a Java class is. Also, many of the same methods are scattered throughout Java Classes. I know of two methods that retreive this... getClass().getName(). But, you must have an object to use these. Is there a way to find out what Class contains a method or Class variable thru an Applet or Java Application?? Obviously, I can look at API Docs; but this takes time.
    Tks Randy

    RajEndiran wrote:
    Can anyone please let me know how we can get the class name of a page or region in oracle apex?What do you mean with class name? The name of the template (e.g. the css style class name)?
    I would also like to know how we get the DOM object ID for particular item.Use firebug or inspect the source code of the rendered page to see the object IDs. Other then then, the typical ID of page items is the name of the item. For regions you can set your own ID.

  • How to get an initialised Object according to it's name?

    How to get an initialised Object according to it's name?
    For example I have 5 HashSets (initialised, with data) hs1 hs2 hs3 hs4 and hs5
    Sometimes I want to get one of them according to it's number : "hs"+number
    How this can be done (method class.forName is dedicated to antoher thing).
    Thanks

    I forgot to write that I do not want to use a Map :)
    (sure, it' possible via Map, no question).
    But in Perl, for example, I could simply write
    $ab="col" + "or";
    $color="Beidge";
    and than I can use address to a variable $color in
    such a way : $$ab
    ... So if a Map is an only way... than it will be a
    Map... pity..I do not really know Perl so I can not comment on it; but, are there any compiled languages (at least compiled to the degree of Java) that support this construct? All of the programming languages that I can think of that have this construct are more along the lines of scripting languages.
    Just curious.

  • How to get an ArrayList Object in servlet from JSP?

    How to get an ArrayList Object in servlet from JSP?
    hi all
    please give the solution for this without using session and application...
    In test1.jsp file
    i am setting values for my setter methods using <jsp:usebean> <jsp:setproperty> tags as shown below.
    After that i am adding the usebean object to array list, then using request.setAttribute("arraylist object")
    ---------Code----------
    <jsp:useBean id="payment" class="com.common.PaymentHandler" scope="request" />
    <jsp:setProperty name="payment" property="strCreditCardNo" param="creditCardNumber" />
    <%-- <jsp:setProperty name="payment" property="iCsc" param="securityCode" /> --%>
    <jsp:setProperty name="payment" property="strDate" param="expirationDate" />
    <jsp:setProperty name="payment" property="strCardType" param="creditCardType" />
    <%--<jsp:setProperty name="payment" property="cDeactivate" param="deactivateBox" />
    <jsp:setProperty name="payment" property="fAmount" param="depositAmt" />
    <jsp:setProperty name="payment" property="fAmount" param="totalAmtDue" /> --%>
    <jsp:useBean id="lis" class="java.util.ArrayList" scope="request">
    <%
    lis.add(payment);
    %>
    </jsp:useBean>
    <%
    request.setAttribute("lis1",lis);
    %>
    -----------Code in JSP-----------------
    In testServlet.java
    i tried to get the arraylist object in servlet using request.getAttribute
    But I unable to get that arrayObject in servlet.....
    So if any one help me out in this, it will be very helpfull to me..
    Thanks in Advance
    Edward

    Hi,
    Im also facing the similar problen
    pls anybody help..
    thax in advance....
    Litty

  • How to get the UserTransaction object in  stateless session bean

    Hi, I am using jboss server and jdk5 version and using EJB.
    My Application flow :
    JSP à Action(Struts) à Service Locator à Session bean à Entity Bean(cmp) à DB.
    I tried to get the UserTransaction object in my Action. Its my code.
    InitialContext ctx = new InitialContext();
    UserTransaction uTrans = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
    After used uTrans.begin(),uTrans.commit() and uTrans. rollback () also.
    Its working fine .
    But, I used the the same code inside in my session bean its not working.
    Stateless Session Manager Bean code :
    public class SampleManagerBean implements SessionBean {
    public void ejbCreate() throws CreateException {  }
    public void ejbRemove() {  }
    public void ejbActivate() {   }
    public void ejbPassivate() {   }
    public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
         public void createSample() throws EJBException
         try{
                   InitialContext ctx = new InitialContext();
                   UserTransaction ut = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
              }catch(Exception e) {
              System.out.println(“ Exception === > “+e)
    Its throws the error ie: javax.naming.NameNotFoundException: UserTransaction not bound
    How to get the UserTransaction object in my session bean. Kindly give solution the above errors.
    - Thendral

    first of all, you could just use sessionContext.getUserTransaction(). however, that would only work if your bean is using bean-managed transactions. the default is container-managed transaction, in which case you cannot get a UserTransaction object. if you want to manage transactions, you need to add the TransactionManagementType.BEAN annotation to your ejb.

  • How to get the view Object in UserDefined Action

    Hi  All,
       Any body tell me how to get the view object , like the view object avilable in the wdDoModifyView() method as parameter.
    I have requirement like, i want to change the , no of rows displaying in the table should be changed at the runtime based onthe no of rows  selected in the dropdown box.
    The action which i created will be assigned to that dropdown box, on select of the available option, i will get the view object and change the properties of the "maxrows" of the table .
    so for getting the view object in the  the Action methods tell me what is the procedure for getting the current view object.

    Hello Vishal,
    Simply create a value attribute (say rowCount) of type 'integer' and bind it to the 'visibleRowCount' property of your table. Then, in the actionHandler get the value from the UI element (in your case, I guess it is drop down) and set it to the attribute 'rowCount' like this.
    wdContext.currentContextElement.setRowCount(
        wdContext.current<nodeElement>.set<AttributeBound toDropDown>);
    Bala

  • Has anyone figured out how to get speech recognition working with sticky keys enabled on mountain lion?

    I'm trying to use speech recognition to input text on my iMac running the latest mountain lion, 10.8.3.
    I have sticky keys enabled.
    When I try to start speaking by pressing the function key twice nothing happens. I can only get it to work if I disable sticky keys.
    The same problem occurs with all the other modifier keys as shortcut, they do not work with sticky keys.
    When I try to select a different shortcut, I am unable to select a two key combination, but am limited to one.
    If I select the F6 key, or any other single key, I am able to start speech recognition. However the second time that I press the key, it does not stop recognition and process my words. Instead, it restarts the recognition.
    Has anyone figured out how to get speech recognition working with sticky keys enabled?
    Or a way to get an individual key shortcut to start on the first press and process it on the second?
    Or a way to get key combinations to work, as specified by the help:
    Dictation On and Off
    To use Dictation, click On.
    When you’re ready to dictate text, place the insertion point where you want the dictated text to appear and press the Fn (function) key twice. When you see the lighted microphone icon and hear a beep, the microphone is ready for you to speak your text.
    Shortcut
    By default, you press the Fn (Function) key twice to start dictation. If you like, you can choose a different shortcut from the menu.
    To create a shortcut that’s not in the list, choose Customize, and then press the keys you want to use. You can press two or more keys to create your shortcut.

    I noticed with version 10.8.4 of OS X that I am now able to select F6 to activate, and the return key to complete the speech recognition. This is still different than the description of how these should function that's included in the help, but at least it's an improvement.

  • How to get gui_download and gui_upload with popup filename?

    how to get gui_download and gui_upload with popup filename?

    Here is a short example.
    report zrich_0003 .
    data: ifiletab type filetable.
    data: xfiletab like line of ifiletab.
    data: xstring type string.
    data: rc type i.
    data: itab type table of string.
    data: xtab type string.
    start-of-selection.
      call method cl_gui_frontend_services=>file_open_dialog
        changing
          file_table              = ifiletab
          rc                      = rc.
      read table ifiletab into xfiletab index 1.
      xstring = xfiletab-filename.
      check not xstring is initial.
      call method cl_gui_frontend_services=>gui_upload
        exporting
          filename                = xstring
      changing
        data_tab                = itab.
      loop at itab into xtab.
        write:/ xtab.
      endloop.
    Regards,
    Rich Heilman

  • How to get the contents associated with a component.

    How to get the contents associated with a component.
    Like i have 2 buttons and i want to get the contents associated with these button without clicking them i.e without firing the event.
    By Contents i mean, whatever things we get after firing the event,we get some other window and some thing is added to the current page and so on.

    grab all the code inside the actionPerformed(ActionEvent e) method

  • How to get a minus sign with the cost  field in ALV.

    Hi ,
    How to get a minus sign with the cost field in ALV.
    The Ouput will be displayed like  Rs -1500 instead of 1500-
    I can't use concatenate also as i may have to use the sum functionality of ALV .
    Cheers
    Sunny

    Hi sunny,
    1. The OTHER FIELD
       has to be character field of say length 15.
    2. Write the original numeric value to
       this character field (in a loop)
    3. But simply writing won't help.
    4. use this kind of logic.
    5.
    REPORT abc.
    DATA : m TYPE i.
    DATA : chr(15) TYPE c.
    m = -100.
    WRITE m TO chr.
    IF m < 0.
      SHIFT chr RIGHT BY 1 PLACES.
      CONDENSE chr.
      CONCATENATE '-' chr INTO chr.
    ENDIF.
    WRITE chr.
    regards,
    amit m.

  • How to use the class CL_CTMENU with the method DISABLE_FUNCTIONS

    Hi Friends,
    How to de-activate some functions in the Menu bar?
    Eg: - Sales document
                 Create
                 Change
                 Display
    I want to de-activate "Change"
    In other words: - How to use the class CL_CTMENU with the method DISABLE_FUNCTIONS in my program.
    Regards,
    Hari
    Edited by: Bhatlapenumarthy Hari Krishna on Jun 9, 2008 5:22 PM

    Krishna,
    It is not possible to deactivate the CHANGE option in themenu bar using the method disable_functions of cass CL_CTMENU. This method allows you to deactivate only the function codes of the CONTEXT MENU, which is available only when u press the left mouse button.
    U can use the SET PF-STATUS 'XXX' EXCLUDING fcodes option to disable the CHANGE.
    *****Reward points if useful
    Regards,
    Kiran Bobbala

  • Indesign : how to move a rectangle object with his content ?

    hi
    i develop an indesign extension with flash builder and cs extension builder 2.
    when I move a rectangle object containing an image with the geometricBounds property the image does not move and is not visible anymore ...
    how to move a rectangle object with his content ?
    thanks
    Simon

    Use rectangle.move()

  • How to get vlan tag programe with mac book air

    how to get vlan tag programe with mac book air,i'm using the usb ethernet adapter

    For prompt help contact TATA.
    For more on this: https://discussions.apple.com/thread/3680625?tstart=270

Maybe you are looking for

  • Software update check via iTunes with error message (1664).

    I had a recent experience with my new Ipad '4'. It is running IOS 6.0.1. When I perform a software update check via iTunes, it returned a message saying that an unknown error had occured (1664). When I connect my iPad 2, and did the same check, it re

  • Problem in infotype

    I am creating a custom infotype,for which i created my own package.By using this package i created infotype PSnnnn structure,but when im creating infotype characteristics and then saving it,it asks for a package request.On filling the package request

  • Java Error When opening ER Model in Jdev 11g release 2

    Dear All, I m getting below error when opening my ER model in jDev java.lang.IllegalArgumentException: Ref is null      at oracle.modeler.dif.ModelerGraphicBridge.findBridgeFromRef(ModelerGraphicBridge.java:343)      at oracle.modeler.dif.ModelerGrap

  • Invoking oracle utilities in Oracle10g on Red Hat Linux

    Hi, I manage an oracle 10g database on Red Hat Linux Enterprise Server 3. I have problems invoking oracle utilities like netca, dbca, dbua etc from the bin directory. Every time i type netca while in the bin directory, i get the following error: bash

  • HTTP Call to XI Authentication

    HI, Our Client is using a Web application -- which needs to send data to XI using HTTP call. The problem is -- in the HTTP call for authentication we have the pass on the uid and pwd in the url ... otherwise the application gives a popup for uid and