Call methods from view controller to another (enhanced) view controller!

Dear All,
Is it possible to use/call methods from view controller to another (enhanced) view controller? Iu2019ve created a view using enhancement in standard WD component. I would like to call one method from standard view controller in the enhanced view controller.
Is it possible to include text symbols as enhancement in standard class?
u2026Naddy

Hi,
If you have just enhanced an existing view then you can call the standard methods in one of the new methods which you will create as part of enhancement.
If you have created a totally new view using enhancement framework option ( Create as Enhancement ) then in this new view you won't be able to use existing methods in other view as a view controller is private in nature. So all the view attributes, context nodes and methods are Private to that view only.
Regarding text elements, I guess adding a new text element is just a table entry in text table and is therefore not recorded as enhancement.( Not very sure about this, need to double check )
Regards
Manas Dua

Similar Messages

Is it possible to call methods from another class from within an abstract c

Is it possible to call methods from another class from within an abstract class ?

I found an example in teh JDK 131 JFC that may help you. I t is using swing interface and JTable
If you can not use Swing, then you may want to do digging or try out with the idea presented here in example 3
Notice that one should refine the abstract table model and you may want to create a method for something like
public Object getValuesAtRow(int row) { return data[row;}
to give the desired row and leave the method for
getValuesAt alone for getting valued of particaular row and column.
So Once you got the seelcted row index, idxSelctd, from your table
you can get the row or set the row in your table model
public TableExample3() {
JFrame frame = new JFrame("Table");
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);}});
// Take the dummy data from SwingSet.
final String[] names = {"First Name", "Last Name", "Favorite Color",
"Favorite Number", "Vegetarian"};
final Object[][] data = {
     {"Mark", "Andrews", "Red", new Integer(2), new Boolean(true)},
     {"Tom", "Ball", "Blue", new Integer(99), new Boolean(false)},
     {"Alan", "Chung", "Green", new Integer(838), new Boolean(false)},
     {"Jeff", "Dinkins", "Turquois", new Integer(8), new Boolean(true)},
     {"Amy", "Fowler", "Yellow", new Integer(3), new Boolean(false)},
     {"Brian", "Gerhold", "Green", new Integer(0), new Boolean(false)},
     {"James", "Gosling", "Pink", new Integer(21), new Boolean(false)},
     {"David", "Karlton", "Red", new Integer(1), new Boolean(false)},
     {"Dave", "Kloba", "Yellow", new Integer(14), new Boolean(false)},
     {"Peter", "Korn", "Purple", new Integer(12), new Boolean(false)},
     {"Phil", "Milne", "Purple", new Integer(3), new Boolean(false)},
     {"Dave", "Moore", "Green", new Integer(88), new Boolean(false)},
     {"Hans", "Muller", "Maroon", new Integer(5), new Boolean(false)},
     {"Rick", "Levenson", "Blue", new Integer(2), new Boolean(false)},
     {"Tim", "Prinzing", "Blue", new Integer(22), new Boolean(false)},
     {"Chester", "Rose", "Black", new Integer(0), new Boolean(false)},
     {"Ray", "Ryan", "Gray", new Integer(77), new Boolean(false)},
     {"Georges", "Saab", "Red", new Integer(4), new Boolean(false)},
     {"Willie", "Walker", "Phthalo Blue", new Integer(4), new Boolean(false)},
     {"Kathy", "Walrath", "Blue", new Integer(8), new Boolean(false)},
     {"Arnaud", "Weber", "Green", new Integer(44), new Boolean(false)}
// Create a model of the data.
TableModel dataModel = new AbstractTableModel() {
// These methods always need to be implemented.
public int getColumnCount() { return names.length; }
public int getRowCount() { return data.length;}
public Object getValueAt(int row, int col) {return data[row][col];}
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
public String getColumnName(int column) {return names[column];}
public Class getColumnClass(int col) {return getValueAt(0,col).getClass();}
public boolean isCellEditable(int row, int col) {return (col==4);}
public void setValueAt(Object aValue, int row, int column) {
data[row][column] = aValue;
};

How to call methods from within run()

Seems like this must be a common question, but I cannot for the life of me, find the appropriate topic. So apologies ahead of time if this is a repeat.
I have code like the following:
public class MainClass implements Runnable {
public static void main(String args[]) {
Thread t = new Thread(new MainClass());
t.start();
public void run() {
if (condition)
doSomethingIntensive();
else
doSomethingElseIntensive();
System.out.println("I want this to print ONLY AFTER the method call finishes, but I'm printed before either 'Intensive' method call completes.");
private void doSomethingIntensive() {
System.out.println("I'm never printed because run() ends before execution gets here.");
return;
private void doSomethingElseIntensive() {
System.out.println("I'm never printed because run() ends before execution gets here.");
return;
}Question: how do you call methods from within run() and still have it be sequential execution? It seems that a method call within run() creates a new thread just for the method. BUT, this isn't true, because the Thread.currentThread().getName() names are the same instead run() and the "intensive" methods. So, it's not like I can pause one until the method completes because they're the same thread! (I've tried this.)
So, moral of the story, is there no breaking down a thread's execution into methods? Does all your thread code have to be within the run() method, even if it's 1000 lines? Seems like this wouldn't be the case, but can't get it to work otherwise.
Thanks all!!!

I (think I) understand the basics.. what I'm confused
about is whether the methods are synced on the class
type or a class instance?The short answer is; the instance for non-static methods, and the class for static methods, although it would be more accurate to say against the instance of the Class for static methods.
The locking associated with the "sychronized" keyword is all based around an entity called a "monitor". Whenever a thread wants to enter a synchronized method or block, if it doesn't already "own" the monitor, it will try to take it. If the monitor is owned by another thread, then the current thread will block until the other thread releases the monitor. Once the synchronized block is complete, the monitor is released by the thread that owns it.
So your question boils down to; where does this monitor come from? Every instance of every Object has a monitor associated with it, and any synchronized method or synchonized block is going to take the monitor associated with the instance. The following:
synchronized void myMethod() {...is equivalent to:
void myMethod() {
    synchronized(this) {
...Keep in mind, though, that every Class has an instance too. You can call "this.getClass()" to get that instance, or you can get the instance for a specific class, say String, with "String.class". Whenever you declare a static method as synchronized, or put a synchronized block inside a static method, the monitor taken will be the one associated with the instance of the class in which the method was declared. In other words this:
public class Foo {
    synchronized static void myMethod() {...is equivalent to:
public class Foo{
    static void myMethod() {
      synchronized(Foo.class) {...The problem here is that the instance of the Foo class is being locked. If we declare a subclass of Foo, and then declare a synchronized static method in the subclass, it will lock on the subclass and not on Foo. This is OK, but you have to be aware of it. If you try to declare a static resource of some sort inside Foo, it's best to make it private instead of protected, because subclasses can't really lock on the parent class (well, at least, not without doing something ugly like "synchronized(Foo.class)", which isn't terribly maintainable).
Doing something like "synchronized(this.getClass())" is a really bad idea. Each subclass is going to take a different monitor, so you can have as many threads in your synchronized block as you have subclasses, and I can't think of a time I'd want that.
There's also another, equivalent aproach you can take, if this makes more sense to you:
static final Object lock = new Object();
void myMethod() {
    synchronized(lock) {
      // Stuff in here is synchronized against the lock's monitor
}This will take the monitor of the instance referenced by "lock". Since lock is a static variable, only one thread at a time will be able to get into myMethod(), even if the threads are calling into different instances.

Moving a method from one class to another issues

Hi, im new. Let me explain what i am trying to achieve. I am basically trying to move a method from one class to another in order to refactor the code. However every time i do, the program stops working and i am struggling. I have literally tried 30 times these last two days. Can some one help please? If shown once i should be ok, i pick up quickly.
Help would seriously be appreciated.
Class trying to move from, given that this is an extraction:
class GACanvas extends Panel implements ActionListener, Runnable {
private WorldMenuItems speedMenuItems, designMenuItemsPlantGrowth, designMenuItemsPlantCount;
 private WorldMenuItems designMenuItemsPlantEaten, designMenuItemsApproximatePopulation;
 private WorldMenuItems designMenuItemsEatersBorn,designMenuItemsMutationProbability;
 private WorldMenuItems designMenuItemsCrossoverProbability;
MenuBar getMenuBar() {
 menuBar = new MenuBar();
 addControlItemsToMenuBar();
 addSpeedItemsToMenuBar();
 addWorldDesignItemsToMenuBar();
 return menuBar;
This is the method i am trying to move (below)
public void itemsInsideWorldDesignMenu() {
 designMenuItemsPlantGrowth = new WorldMenuItems("Plants Grow",
 new String[] { "In Rows", "In Clumps", "At Random",
 "Along the Bottom", "Along the Edges" }, 1);
 designMenuItemsPlantCount = new WorldMenuItems("Number Of Plants",
 new String[] { "50", "100", "150", "250", "500" }, 3);
 designMenuItemsPlantEaten = new WorldMenuItems("When a Plant is Eaten",
 new String[] { "It grows back somewhere",
 "It grows back nearby", "It's Gone" }, 0);
 designMenuItemsApproximatePopulation = new WorldMenuItems(
 "Approximate Population", new String[] { "10", "20", "25",
 "30", "40", "50", "75", "100" }, 2);
 designMenuItemsEatersBorn = new WorldMenuItems("Eaters are Born",
 new String[] { "At the Center", "In a Corner",
 "At Random Location", "At Parent's Location" }, 2);
 designMenuItemsMutationProbability = new WorldMenuItems(
 "Mutation Probability", new String[] { "Zero", "0.25%", "0.5%",
 "1%", "2%", "3%", "5%", "10%" }, 3);
 designMenuItemsCrossoverProbability = new WorldMenuItems(
 "Crossover Probability", new String[] { "Zero", "10%", "25%",
 "50%", "75%", "100%" }, 4);
Class Trying to move to:
class WorldMenuItems extends Menu implements ItemListener {
 private CheckboxMenuItem[] items;
 private int selectedIndex = -1;
 WorldMenuItems(String menuName, String[] itemNames) {
 this(menuName, itemNames, -1);
 WorldMenuItems(String menuName, String[] itemNames, int selected) {
 super(menuName);
 items = new CheckboxMenuItem[itemNames.length];
 for (int i = 0; i < itemNames.length; i++) {
 items[i] = new CheckboxMenuItem(itemNames);
add(items[i]);
items[i].addItemListener(this);
selectedIndex = selected;
if (selectedIndex < 0 || selectedIndex >= items.length)
selectedIndex = 1;
items[selectedIndex].setState(true);
 public int getSelectedIndex() {
 return selectedIndex;
public void itemStateChanged(ItemEvent evt) { // This works on other systems
CheckboxMenuItem newSelection = (CheckboxMenuItem)evt.getSource();
for (int i = 0; i < items.length; i++) {
if (newSelection == items[i]) {
items[selectedIndex].setState(false);
selectedIndex = i;
newSelection.setState(true);
return;

Ok i've done this. I am getting an error on the line specified. Can someone help me out and tell me what i need to do?
GACanvas
//IM GETTING AN ERROR ON THIS LINE UNDER NAME, SAYING IT IS NOT VISIBLE
WorldMenuItems worldmenuitems = new WorldMenuItems(name, null);
public MenuBar getMenuBar() {
 menuBar = new MenuBar();
 addControlItemsToMenuBar();
 addSpeedItemsToMenuBar();
 worldmenuitems.addWorldDesignItemsToMenuBar();
 return menuBar;
class WorldMenuItems extends Menu implements ItemListener {
 private WorldMenuItems speedMenuItems, designMenuItemsPlantGrowth, designMenuItemsPlantCount;
 private WorldMenuItems designMenuItemsPlantEaten, designMenuItemsApproximatePopulation;
 private WorldMenuItems designMenuItemsEatersBorn,designMenuItemsMutationProbability;
 private WorldMenuItems designMenuItemsCrossoverProbability;
 GACanvas gacanvas = new GACanvas(null);
 private CheckboxMenuItem[] items;
 private int selectedIndex = -1;
 WorldMenuItems(String menuName, String[] itemNames) {
 this(menuName, itemNames, -1);
 WorldMenuItems(String menuName, String[] itemNames, int selected) {
 super(menuName);
 items = new CheckboxMenuItem[itemNames.length];
 for (int i = 0; i < itemNames.length; i++) {
 items[i] = new CheckboxMenuItem(itemNames);
add(items[i]);
items[i].addItemListener(this);
selectedIndex = selected;
if (selectedIndex < 0 || selectedIndex >= items.length)
selectedIndex = 1;
items[selectedIndex].setState(true);
 public int getSelectedIndex() {
 return selectedIndex;
public void itemStateChanged(ItemEvent evt) { // This works on other systems
CheckboxMenuItem newSelection = (CheckboxMenuItem)evt.getSource();
for (int i = 0; i < items.length; i++) {
if (newSelection == items[i]) {
items[selectedIndex].setState(false);
selectedIndex = i;
newSelection.setState(true);
return;
public void itemsInsideWorldDesignMenu() {
 designMenuItemsPlantGrowth = new WorldMenuItems("Plants Grow",
 new String[] { "In Rows", "In Clumps", "At Random",
 "Along the Bottom", "Along the Edges" }, 1);
 designMenuItemsPlantCount = new WorldMenuItems("Number Of Plants",
 new String[] { "50", "100", "150", "250", "500" }, 3);
 designMenuItemsPlantEaten = new WorldMenuItems("When a Plant is Eaten",
 new String[] { "It grows back somewhere",
 "It grows back nearby", "It's Gone" }, 0);
 designMenuItemsApproximatePopulation = new WorldMenuItems(
 "Approximate Population", new String[] { "10", "20", "25",
 "30", "40", "50", "75", "100" }, 2);
 designMenuItemsEatersBorn = new WorldMenuItems("Eaters are Born",
 new String[] { "At the Center", "In a Corner",
 "At Random Location", "At Parent's Location" }, 2);
 designMenuItemsMutationProbability = new WorldMenuItems(
 "Mutation Probability", new String[] { "Zero", "0.25%", "0.5%",
 "1%", "2%", "3%", "5%", "10%" }, 3);
 designMenuItemsCrossoverProbability = new WorldMenuItems(
 "Crossover Probability", new String[] { "Zero", "10%", "25%",
 "50%", "75%", "100%" }, 4);
public void addWorldDesignItemsToMenuBar() {
 gacanvas = new GACanvas(null);
 itemsInsideWorldDesignMenu();
 Menu designMenuItems = new Menu("WorldDesign");
 designMenuItems.add(designMenuItemsPlantGrowth);
 designMenuItems.add(designMenuItemsPlantCount);
 designMenuItems.add(designMenuItemsPlantEaten);
 designMenuItems.add(designMenuItemsApproximatePopulation);
 designMenuItems.add(designMenuItemsEatersBorn);
 designMenuItems.add(designMenuItemsMutationProbability);
 designMenuItems.add(designMenuItemsCrossoverProbability);
 gacanvas.menuBar.add(designMenuItems);

Calling methods from the Business Object BUS2032

Hi all,
Is it possible to call methods from the Business Object BUS2032.
If so, how can it be done??
Regards,

Hi Marv,
you sure can. Here is an extract from the SAP Help. I found it at http://help.sap.com/saphelp_46c/helpdata/en/c5/e4ad71453d11d189430000e829fbbd/frameset.htm
Programmed Method Call
Call (fictitious) method Print of object type VBAK (sales document). The method receives the parameters Paperformat and Printertype as input.
* Call method Print of object type VBAK
* Data declarations
DATA: VBAK_REF TYPE SWC_OBJECT.
SWC_CONTAINER CONTAINER.
* Create object reference to sales document
SWC_CREATE_OBJECT VBAK_REF 'VBAK' <KeySalesDoc>
* Fill input parameters
SWC_CREATE_CONTAINER CONTAINER.
SWC_SET_ELEMENT CONTAINER 'Paperformat' 'A4'.
SWC_SET_ELEMENT CONTAINER 'Printertype' 'Lineprinter'.
* Call Print method
SWC_CALL_METHOD VBAK_REF 'Print' CONTAINER.
* Error handling
IF SY-SUBRC NE 0.
ENDIF.
Cheers
Graham

Calling Methods from Business Object BUS2032

Hi all,
Is it possible to call methods from the Business Object BUS2032.
If so, how can it be done??
Regards,

Hi Marv,
you sure can. Here is an extract from the SAP Help. I found it at http://help.sap.com/saphelp_46c/helpdata/en/c5/e4ad71453d11d189430000e829fbbd/frameset.htm
Programmed Method Call
Call (fictitious) method Print of object type VBAK (sales document). The method receives the parameters Paperformat and Printertype as input.
* Call method Print of object type VBAK
* Data declarations
DATA: VBAK_REF TYPE SWC_OBJECT.
SWC_CONTAINER CONTAINER.
* Create object reference to sales document
SWC_CREATE_OBJECT VBAK_REF 'VBAK' <KeySalesDoc>
* Fill input parameters
SWC_CREATE_CONTAINER CONTAINER.
SWC_SET_ELEMENT CONTAINER 'Paperformat' 'A4'.
SWC_SET_ELEMENT CONTAINER 'Printertype' 'Lineprinter'.
* Call Print method
SWC_CALL_METHOD VBAK_REF 'Print' CONTAINER.
* Error handling
IF SY-SUBRC NE 0.
ENDIF.
Cheers
Graham

Can anyone give me step by step for calling FM from one SAP to another SAP

can anyone give me step by step for calling FM from one SAP to another SAP
points will be rewarded,
thank you,
Regards,
Jagrut BharatKumar Shukla

*& Report RFC_FOR_CUSTOMER_LIST
*& RFC to a Fn. module from another system which implements BAPI
REPORT rfc_for_customer_list.
DATA:
fl_status TYPE i.
DATA:
fs_message TYPE bapiret2.
DATA:
BEGIN OF fs_customers,
    id   TYPE s_customer,
    name TYPE s_custname,
END OF fs_customers.
DATA:
t_customers LIKE
     STANDARD TABLE
           OF fs_customers.
CALL FUNCTION 'Z_BAPI_GET_CUSTOMER_LIST' DESTINATION 'R3N'
IMPORTING
    return = fs_message
TABLES
    customerlist = t_customers.
IF sy-subrc EQ 0.
fl_status = 1.
LOOP AT t_customers INTO fs_customers.
    WRITE:
      /10 fs_customers-id,
       30 fs_customers-name.
    AT LAST.
      WRITE:
        /,/5 'No of customers in R3N = ', sy-tabix.
    ENDAT.
ENDLOOP.
ELSE.
MESSAGE 'RFC failed' TYPE 'S'.
EXIT.
ENDIF.
                       TOP-OF-PAGE EVENT                            *
TOP-OF-PAGE.
IF fl_status NE 0.
    WRITE:
      /12 'ID'   COLOR 6,
       32 'NAME' COLOR 6.
    SKIP.
ENDIF.
This is one small example...
Regards,
Pavan

Calling methods from inside a tag using jsp 2.0

My searching has led me to believe that you cannot call methods from in the jsp 2.0 tags. Is this correct? Here is what I am trying to do.
I have an object that keeps track of various ui information (i.e. tab order, whether or not to stripe the current row and stuff like that). I am trying out the new (to me) jsp tag libraries like so:
jsp page:
<jsp:useBean id="rowState" class="com.mypackage.beans.RowState" />
<ivrow:string rowState="${rowState}" />my string tag:
<%@ attribute type="com.mypackage.beans.RowState" name="rowState" required="true" %>
<c:choose>
 <c:when test="${rowState.stripeToggle}">
 <tr class="ivstripe">
 </c:when>
 <c:otherwise>
 <tr>
 </c:otherwise>
</c:choose>I can access the getter method jst fine. It tells me wether or not to have a white row or a gray row. Now I want to toggle the state of my object but I get the following errors when I try this ${rowState.toggle()}:
org.apache.jasper.JasperException: /WEB-INF/tags/ivrow/string.tag(81,2) The function toggle must be used with a prefix when a default namespace is not specified
Question 1:
Searching on this I found some sites that seemed to say you can't call methods inside tag files...is this true?...how should I do this then? I tried pulling the object out of the pageContext like this:
<%@ page import="com.xactsites.iv.beans.*" %>
<%
RowState rowState = (RowState)pageContext.getAttribute("rowState");
%>I get the following error for this:
Generated servlet error:
RowState cannot be resolved to a type
Question 2:
How come java can't find RowState. I seem to recall in my searching reading that page directives aren't allowed in tag files...is this true? How do I import files then?
I realized that these are probably newbie questions so please be kind, I am new to this and still learning. Any responses are welcome...including links to good resources for learning more.

You are correct in that JSTL can only call getter/setter methods, and can call methods outside of those. In particular no methods with parameters.
You could do a couple of things though some of them might be against the "rules"
1 - Whenever you call isStripeToggle() you could "toggle" it as a side effect. Not really a "clean" solution, but if documented that you call it only once for each iteration would work quite nicely I think.
2 - Write the "toggle" method following the getter/setter pattern so that you could invoke it from JSTL.
ie public String getToggle(){
 toggle = !toggle;
 return "";
}Again its a bit of a hack, but you wouldn't be reusing the isStriptToggle() method in this way
The way I normally approach this is using a counter for the loop I am in.
Mostly when you are iterating on a JSP page you are using a <c:forEach> tag or similar which has a varStatus attribute.
<table>
<c:forEach var="row" items="${listOfThings}" varStatus="status">
<tr class="${status.index % 2 == 0 ? 'evenRow' : 'oddRow'}">
 <td>${status.index}></td>
 <td>${row.name}</td>
</tr>
</c:forEach>

Is Two Classes that call methods from each other possible?

I have a class lets call it
gui and it has a method called addMessage that appends a string onto a text field
i also have a method called JNIinterface that has a method called
sendAlong Takes a string and sends it along which does alot of stuff
K the gui also has a text field and when a button is pushed it needs to call sendAlong
the JNIinterface randomly recieves messages and when it does it has to call AddMessage so they can be displayed
any way to do this??

Is Two Classes that call methods from each other possible?Do you mean like this?
   class A
     static void doB() { B.fromA(); }
     static void fromB() {}
   class B
     static void doA() { A.fromB(); }
     static void fromA() {}
.I doubt there is anyway to do exactly that. You can use an interface however.
   Interface IB
     void fromA();
   class A
     IB b;
     A(IB instance) {b = instance;}
     void doB() { b.fromA(); }
     void fromB() {}
   class B implements IB
     static void doA() { A.fromB(); }
     void fromA() {}
.Note that you might want to re-examine your design if you have circular references. There is probably something wrong with it.

Copy the attribute as well the associated type from the standard to your enhanced view.?

We are doing CRM Upgrade to Ehp3 and i am working with TC:WCF_CC
Please guide me how to open standard view in parallel in component workbench?
to add copy the attribute as well the associated type from the
standard to your enhanced view.?
Please advice

Hi,
The only option i see is writing a BDC for a Mass Change or through Catt or E-Catt procedure, you can define any no. of fields there to copy and then you need to maintain the data in Excel file correctly, otherwise Ecatt is not going to upload the data.
Hope this helps.
Thanks
Aktar

Calling method from another class problem

hi,
i am having problem with my code. When i call the method from the other class, it does not function correctly?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class Dice extends JComponent
    private static final int SPOT_DIAM = 9;
    private int faceValue;
    public Dice()
        setPreferredSize(new Dimension(60,60));
        roll();
    public int roll()
        int val = (int)(6*Math.random() + 1);
        setValue(val);
        return val;
    public int getValue()
        return faceValue;
    public void setValue(int spots)
        faceValue = spots;
        repaint();
    @Override public void paintComponent(Graphics g) {
        int w = getWidth();
        int h = getHeight();
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2.setColor(Color.WHITE);
        g2.fillRect(0, 0, w, h);
        g2.setColor(Color.BLACK);
        g2.drawRect(0, 0, w-1, h-1);
        switch (faceValue)
            case 1:
                drawSpot(g2, w/2, h/2);
                break;
            case 3:
                drawSpot(g2, w/2, h/2);
            case 2:
                drawSpot(g2, w/4, h/4);
                drawSpot(g2, 3*w/4, 3*h/4);
                break;
            case 5:
                drawSpot(g2, w/2, h/2);
            case 4:
                drawSpot(g2, w/4, h/4);
                drawSpot(g2, 3*w/4, 3*h/4);
                drawSpot(g2, 3*w/4, h/4);
                drawSpot(g2, w/4, 3*h/4);
                break;
            case 6:
                drawSpot(g2, w/4, h/4);
                drawSpot(g2, 3*w/4, 3*h/4);
                drawSpot(g2, 3*w/4, h/4);
                drawSpot(g2, w/4, 3*h/4);
                drawSpot(g2, w/4, h/2);
                drawSpot(g2, 3*w/4, h/2);
                break;
    private void drawSpot(Graphics2D g2, int x, int y)
        g2.fillOval(x-SPOT_DIAM/2, y-SPOT_DIAM/2, SPOT_DIAM, SPOT_DIAM);
}in another class A (the main class where i run everything) i created a new instance of dice and added it onto a JPanel.Also a JButton is created called roll, which i added a actionListener.........rollButton.addActionListener(B); (B is instance of class B)
In Class B in implements actionlistener and when the roll button is clicked it should call "roll()" from Dice class
Dice d = new Dice();
d.roll();
it works but it does not repaint the graphics for the dice? the roll method will get a random number but then it will call the method to repaint()???
Edited by: AceOfSpades on Mar 5, 2008 2:41 PM
Edited by: AceOfSpades on Mar 5, 2008 2:42 PM

One way:
class Flintstone
    private String name;
    public Flintstone(String name)
        this.name = name;
    public String toString()
        return name;
    public static void useFlintstoneWithReference(Flintstone fu2)
        System.out.println(fu2);
    public static void useFlintstoneWithOutReference()
        Flintstone barney = new Flintstone("Barney");
        System.out.println(barney);
    public static void main(String[] args)
        Flintstone fred = new Flintstone("Fred");
        useFlintstoneWithReference(fred); // fred's the reference I"m passing to the method
        useFlintstoneWithOutReference();
{code}
can also be done with action listener
{code}    private class MyActionListener implements ActionListener
        private Flintstone flintstone;
        public MyActionListener(Flintstone flintstone)
            this.flintstone = flintstone;
        public void actionPerformed(ActionEvent arg0)
            //do whatever using flinstone
            System.out.println(flintstone);
    }{code}
Edited by: Encephalopathic on Mar 5, 2008 3:06 PM

How to Call Methods of one component into another Component

Hi Experts,
I have one requirement...
I have 2 components A and B, i used A comp in B, i need to call Comp A methods in Component B, can anybody give me the syntax?? please...
Thanks and Regards,
Kissna.

Hi Manas Thanks for your fast reply,
My question is, for example we have wd_comp_controller or wd_this objects to call methods of view from view and comp controller right.. like this we have any methods to call used component methods? if yes can u please give me the objects syntax?...
Thanks and regards,
Kissna.

How to call Method from wdDoModifyView()

Hi,
I have a private method and i wanna call this method from wdDoModifyView() hook method.
but when i call mthod it gives me error the method dim() from the type ..view is not static.
can any one tell me how can i access this method?
best regards
Yasir Noman

Hi Yasir,
i'm not sure what you mean with the "dim()" method. I guess this is the non-static method you want to call from wdDoModifyView()? You should already get a compile-time error, not only a runtime error.
The reason is simple: There is no possibility to call non-static methods from a static context. Static methods "belong to" a class while non-static methods "belong to" instances of a class.
A simple alternative is to declare dim() as public using the "Methods" tab of the corresponding view controller and use the "wdThis" reference you are getting as a parameter of the wdDoModifyView() method such as you can call wdThis.dim().
It's not sufficient just to change the method to public inside the //@others section, since wdThis will not know the method then since it's not part of the controller metadata.
Hope that helps.
Regards
Stefan

Calling methods from Command prompt

Hi,
OK this may seem crazy:).
Is it possible to call a method from the command prompt directly?.
For eg. I have a class UFOSeeker that has a static method getPosinSky.
Is it possible to just call this method directly form the cmd prompt?, something like this
[neo@zeno ~]java UFOSeeker.getPosinSky()
The . is wrong i know, but is there a way?.
Reason for asking this, just bored and wondering whether this would be possible?.
TIA,
kris

You could do it via another class and use reflection.
For example:
public class CallStaticMethod
    public static void main(String[] args)
        String className = args[0].substring(0, args[0].lastIndexOf('.'));
        String methodName = args[0].substring(args[0].lastIndexOf('.')+1, args[0].indexOf('('));
        try
            Class clazz = Class.forName(className);
            Method meth = clazz.getMethod(methodName, new Class[0]);
            meth.invoke(null, new Object[0]);
        catch ( Exception e )
            e.printStackTrace();
}You would then run:
java CallStaticMethod package.Class.method()
or in your example
java CallStaticMethod UFOSeeker.getPosinSky()
The code above does not do anything about passing in parameters or getting return types. If you are really bored you could add it in.

Wda: call method from a component interface definition (cid)

hello,
I created the following scenario:
- I have a Main-component "m"
- "L" is a component interface definition (cid) which force both cid-L-implementating components "L1" and "L2" to extend and fill the method "set_COMP_USAGES()".
- I have other cid´s (A-C) too
- at runtime only one of the components "L1" or "L2" is created and the mother-component M holds component-usages (ref to) of the chosen variants of A-C and L as an attribute in the component-controller of m.
now my problem: my aim is to call a method in m at runtime which is defined at designtime in my cid L (set_COMP_USAGES() )and decided at runtime which variant of this method is chosen (the one from L1 or L2). in this method the references of comp_usages other cid´s should be passed to L1 or L2.
or short: how can I call a method from a cid-implementating component at runtime via a IF_WD_COMPONENT_USAGE reference (ref to) to this component?

I got the solution:
data: L_INTF_CONTROLLER         type ref to ZIWCI_Z_ITF_CID_L.
L_INTF_CONTROLLER ?= wd_this->COMPONENT_USAGE_L->GET_INTERFACE_CONTROLLER( ).
CALL METHOD l_intf_controller->set_comp_usages
    EXPORTING
      comp_usage_a = wd_this->COMPONENT_USAGE_a
      comp_usage_b = wd_this->COMPONENT_USAGE_b
      comp_usage_c = wd_this->COMPONENT_USAGE_c.

Call methods from view controller to another (enhanced) view controller!

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