Proper way to use multiple pop-up dialogs

I've got an application that uses a series of pop-ups to process user information.
A general flow of information is
User clicks a button
->dialog launches asking for confirmation to start process
Dialog returns and system processes request (in a returnListener)
->System launches new dialog, using AdfFacesContext.launchDialog, asking user to confirm changes to be made
Dialog returns and systems processes changes.
What I've noticed is that if I interact with the components in the second dialog 'too much' then the second return listener is not being called.
So, my question is, am I using dialogs properly? Should I try to use actions and navigation links instead of opening and closing dialogs?

Sounds reasonable.
In that vein, is there a way to create 're-usable' dialogs? Ideally I don't want to have to write tons of little dialog that do nothing more interesting than asking "Are you sure?" with the actions set differently.
At first glance, I'm almost tempted to pack a method binding into the process scope and have the dialog check if it exists, and if it does, execute that. But that seems somewhat, inelegant.
Any thoughts?

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Need to update list page using a pop up dialog page (Please its URGENT)

Hi,
I have master page with list of employees. Using a pop up dialog I'am trying to insert a new record but the record is not appearing in the list.
Possible solutions tried but no hope:
1. Using managed bean I tried with refreshing (re-execute) the iterator and binding container of employee list page.
2. Used a navigation from popup dialog to list page along with returnActionListener associated on button.
Thanks in advance,
Syed Fazal

Hi Syed,
you may try in your return event
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nh.handleNavigation(context, null, "whateveryournavigationruleis");

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What is the proper way to use Siri dictation with punctuation, on iPad with Retina Display?
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Also:
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What is the proper way to use the write method?

What is the proper way to use the OutputStreams write method? I know the flush() method is automatically called after the write but i cant seem to get any output
to a file. The char array contains characters and upon completion of the for loop the contents of the array is printed out, so there is actually data in the array. But write dosnt seem to do squat no matter what i seem to do. Any suggestions?
import java.io.*;
public class X{
public static void main(String[] args){
try{
FileReader fis = new FileReader("C:\\Java\\Test.txt"); //read chars
FileWriter fw = new FileWriter("C:\\Java\\Test1.txt"); //read chars
File f = new File("C:\\Java\\Test.txt");
char[] charsRead = new char[(int)f.length()];
while(true){
int i = fis.read(charsRead);
if(i == -1) break;
// fw.write(charsRead); this wont work
// but there is infact chars in the char Array?
for(int i = 0; i < charsRead.length -1 ; ++i){
System.out.print(charRead);
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Sorry to have to tell you this guys but all of the above are broken.
First of all... you should all take a good look at what the read() method actually does.
http://java.sun.com/j2se/1.3/docs/api/java/io/InputStream.html#read(byte[], int, int)
Pay special attension to this paragraph:
Reads up to len[i] bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len[i] bytes, but a smaller number may be read, possibly zero. The number of bytes actually read is returned as an integer.
In other words... when you use read() and you request say 1024 bytes, you are not guaranteed to get that many bytes. You may get less. You may even get none at all.
Supposing you want to read length bytes from a stream into a byte array, here is how you do it.int bytesRead = 0;
int readLast = 0;
byte[] array = new byte[length];
while(readLast != -1 && bytesRead < length){
readLast = inputStream.read(array, bytesRead, length - bytesRead);
if(readLast != -1){
bytesRead += readLast;
}And then the matter of write()...
http://java.sun.com/j2se/1.3/docs/api/java/io/OutputStream.html#write(byte[])
write(byte[] b) will always attempt to write b.length bytes, no matter how many bytes you actually filled it with. All you C/C++ converts... forget all about null terminated arrays. That doesn't exist here. Even if you only read 2 bytes into a 1024 byte array, write() will output 1024 bytes if you pass that array to it.
You need to keep track of how many bytes you actually filled the array with and if that number is less than the size of the array you'll need pass this as an argument.
I'll make another post about this... once and for all.
/Michael

Is it a proper way to use queue for consumer/producer model?

Hi all,
I am following the example of consumer/producer model to use the queue to synchronize the following process: The producer is a loop to produce N numbers, I will put every generated number into an array and after every 5 numbers generated, I put the array into the queue and pass it to the consumer. I have to wait the consumer use up the data and it will then remove the element from queue so the producer will get a chance to produce another 5 numbers. Since I set the maximum size of the queue to be ONE, I expect the producer and consumer take turns to produce / consume all five numbers and pass the chance to the other. Here is my code
when the case box is false, the code will be
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Solved!
Go to Solution.

dragondriver wrote:
As you said in 1, the sequency structure enforcing the execution order, that's why I put it there, in this example, to put the issue simple, I replace the complete code with number increase, in the real case, the first +1 and +2 must be executed in that order.
Mikeporter mentioned:
1. Get rid of all the sequence structures. None of them are doing anything but enforcing an execution order that would be the same without them.
So even if you remove the sequence structure, there will be a fixed & defined execution order and that is because LabVIEW follows DATA FLOW MODEL.
Data Flow Model (specifically in context of LabVIEW): A block diagram node executes when it receives all required inputs. When a node executes, it produces output data and passes the data to the next node in the dataflow path. The movement of data through the nodes determines the execution order of the VIs and functions on the block diagram (Click here for reference).
Now in your code, just removing the sequence structure will not make sure that the execution order will gonna remain same but you need to do few very small modifications (like pass the error wire through For loop, before it goes to 'Dequeue Element' node).
Coming to the main topic: is it a proper way to use queue for consumer/producer model?
The model you're using (and calling it as consumer/producer model) is way too deviated from the original consumer/producer model model.
dragondriver wrote:
For the second one, yes, it is my fault to remove that while. I actually start from the example of Producer/Consumer design pattern template, but I didn't pay attention to the while loop in the consumer part.
While loops (both Producer & Consumer) are the essential part of this architecture and can't be removed. You may want to start your code again using standard template.
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.

What's the proper way to use reusingView in a custom UIPickerView

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I've tried something like this:
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Thoughts anyone?

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {
iPregnancyAppDelegate *iPregAppDelegate = [[UIApplication sharedApplication] delegate];
UILabel *pickerLabel = (UILabel *)view;
// Reuse the label if possible, otherwise create and configure a new one
if ((pickerLabel == nil) || ([pickerLabel class] != [UILabel class])) { //newlabel
CGRect frame = CGRectMake(0.0, 0.0, 270, 32.0);
pickerLabel = [[[UILabel alloc] initWithFrame:frame] autorelease];
pickerLabel.textAlignment = UITextAlignmentLeft;
pickerLabel.backgroundColor = [UIColor clearColor];
pickerLabel.text = @"Put YOUR text here!";
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Message was edited by: gpmoore

Proper way to use data throughout a class?

I know global variables aren't a thing in c#, as that goes against the rules.
So I have a couple of functions and subroutines (pardon my vocabulary if it isn't canon). I use a simple array to transfer data back and forth. Is this the proper way to do this? As in most efficient, readable, and expandable?
class Program
static void Main()
bool[] MotorPosition = new bool[4];
MotorPosition[0] = true;
MotorPosition[1] = false;
MotorPosition[2] = true;
MotorPosition[3] = false;
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System.Threading.Thread.Sleep(64);
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bool[] NewMotorPosition = new bool[4];
for (int x = 0; x < 4; x = x + 1)
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string CombinedDisplay = null;
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Mediocre Access 2010 | (Baby) Beginner C Sharp | OK at Active Directory (2012) | Fragmented understanding of DNS/DHCP | Laughable experience with Group Policy | Expert question asker on MSDN Forums

Absolutely amazing! I learn something new every day. I wonder when programming will cease to amaze me.
using your example jdweng, I was able to add a counter to your code and move the motor position to the test class; as well as add another motor by instancing the class again!
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication1
class Program
static int Main(string[] args)
Test test = new Test();
test.Initialize(); //Assigns initial value to MotorPosition
Test test2 = new Test();
test2.Initialize(); //Assigns initial value to MotorPosition
while (true)
if (test.MotorUpdateCount == 40) Console.ReadLine(); //pauses at 40 to make it easy to see output upto that point
if (test.MotorUpdateCount > 1000) return -1; //ends program
test.MotorPosition = test.UpdateMotorPosition(test.MotorPosition); //updates motor 1 position
test.DisplayMotorPosition(test.MotorPosition); //displays motor 1 position
if (test.MotorUpdateCount > 20) //at count 20, engages motor 2
test2.MotorPosition = test2.UpdateMotorPosition(test2.MotorPosition); //updates motor 2 position
test2.DisplayMotorPosition(test2.MotorPosition); //displays motor 2 position
System.Threading.Thread.Sleep(128); //slows the loop down to reasonable speed
public class Test
public int MotorUpdateCount = 0;
public bool[] MotorPosition = new bool[4];
public void Initialize()
MotorPosition[0] = true;
MotorPosition[1] = false;
MotorPosition[2] = true;
MotorPosition[3] = false;
public bool[] UpdateMotorPosition(bool[] MotorPosition)
bool[] NewMotorPosition = new bool[4];
for (int x = 0; x < 4; x = x + 1)
NewMotorPosition[x] = !MotorPosition[x];
MotorUpdateCount = MotorUpdateCount + 1;
return NewMotorPosition;
public void DisplayMotorPosition(bool[] MotorPosition)
string CombinedDisplay = null;
for (int x = 0; x < 4; x = x + 1)
CombinedDisplay = CombinedDisplay + MotorPosition[x].ToString();
Console.WriteLine(CombinedDisplay);
Console.WriteLine(MotorUpdateCount.ToString());
Mediocre Access 2010 | (Baby) Beginner C Sharp | OK at Active Directory (2012) | Fragmented understanding of DNS/DHCP | Laughable experience with Group Policy | Expert question asker on MSDN Forums

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The only class that I extend is the JPanel class because it makes it easier
to create and manage the complex layout that I need.
Are you suggesting there is a better way (...) without extending JPanel?Yes.
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I looked up the term "composer class" but couldn't find anything.
Can you go into more detail about this term?Something along the line of:// Simple class, one text field, one clear button
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If the configuration of the screen is more complex (e.g. lots of text fields, other widgets,...), you can use a Mediator class (this one is a known and documented design pattern). See below.
Also, I figured I could use the same Action for the different components
but (...)
how would a "Clear" Action have a handle to the fields it needs to clear?It should have a handle to a Mediator object: this latter has already references to all widgets. And the clear action does not even bother clearing all buttons but just ask the Mediator to do so.
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Proper way to use multiple pop-up dialogs

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