Compile causes info in static class to be lost

I'm building a portal that runs on WebLogic. One aspect is the KIA (know it all). It's a class that has a static TreeMap which on WebLogic startup loads keys/values from a file. This allows me to change one file and see the changes throughout the portal. However if I compile a class that I'm working on with WebLogic running the static TreeMap is cleared... is there any reasoning as to why the information is lost?
          Note that the classes I compile do import KIA but KIA itself is not changed therefore shouldn't be re-compiled. Also another thing is that I am using a different jdk to compile the class(es) and no weblogic jar files. Finally this is happening while weblogic is running.
          Arnold Shoon

The static data is lost because the recompiled JSP class is not the same class
 as the original one. The original class, including its static data, is discarded.
 Static information should be initialized in the jspInit() method, which will
 be called before jspService() is called.
 Mike
 Arnold <[email protected]> wrote:
 >I'm building a portal that runs on WebLogic. One aspect is the KIA (know
 >it all). It's a class that has a static TreeMap which on WebLogic startup
 >loads keys/values from a file. This allows me to change one file and
 >see the changes throughout the portal. However if I compile a class
 >that I'm working on with WebLogic running the static TreeMap is cleared...
 > is there any reasoning as to why the information is lost?
 >
 >Note that the classes I compile do import KIA but KIA itself is not changed
 >therefore shouldn't be re-compiled. Also another thing is that I am
 >using a different jdk to compile the class(es) and no weblogic jar files.
 > Finally this is happening while weblogic is running.
 >
 >Arnold Shoon

Similar Messages

Static class reference

Below we have a class containing a static class variable and a static accessor method.
The method is responsible for assigning the variable, which it does on demand.
public class MyClass
 private static int INFO = -1;
 public static int getInfo()
 if(INFO < 0)
 try
 INFO = ...;
 catch(Exception e)
 return INFO;
 }When using this class is it not safe to assume that the assignment of the variable will ever only occur once for the life of the system that uses this class? (afterall is it static within the class)
I am experiencing the situation whereby EVERY time the method is called, the assignment of the variable is necessary. I can only assume that the static instance of this class in memory has been lost between each call and therefore the state/value of the variable has also been lost.
It is worth noting that no object instances of this class are ever created. The class is accessed only through its static interface. It seems that since no local reference to objects of this class are held in memory then the entire class, along with its internal static state, is cleared from memory (garbage collected?).
How is it possible to ensure that the state of static fields within such a class is preserved over time, without create instances of the class.
John

When using this class is it not safe to assume that
the assignment of the variable will ever only occur
once for the life of the system that uses this class?First of all, you haven't said what you assign it to, so we can't say. If you assign a value less than zero then it will be reassigned next time the method is called.
Secondly, it depends on whether or not you're expecting it to be thread-safe? It isn't.
If your code is not multi-threaded, then the section of code in your getInfo method that assigns the field should only execute once during a single run of an application.
Thirdly, you explicitly assign it (to minus one) at class initialisation time, so stricty speaking, the variale will always be assigned at least once, and will be assigned at least once more if the getInfo method is ever called.
I am experiencing the situation whereby EVERY time the
method is called, the assignment of the variable is
necessary. Can you offer any evidence to this? A small, complete, compilable and executable example that demonstrates the problem will help, and will probably get you an answer pretty quickly around here.
I can only assume that the static instance
of this class in memory has been lost between each
call and therefore the state/value of the variable has
also been lost.Then either there is a bug in your JVM, or at least two versions of the class have been loaded, and at least one of those was not loaded by the system classloader. Without further info, we aren't going to be able to help much more here.
The class is accessed only
through its static interface. It seems that since no
local reference to objects of this class are held in
memory then the entire class, along with its internal
static state, is cleared from memory (garbage
collected?).This is not allowed under the JLS if the class was loaded by the system classloader. If it was loaded by another classloader, then it is only allowed if it can be determined that the class will never again be used throughout the entire run of the application. Since you are referencing the class again, this should not be happening.
How is it possible to ensure that the state of static
fields within such a class is preserved over time,
without create instances of the class.From what you have told us so far, it should be. You will probably have to provide some code for us to help you further.

Lifetime of static classes in WebDynpro

Hi,
I have a question regarding static java classes in WebDynpro: Does anybody know details about their lifetime. I was searching for this information but I didn't find info.
The background of this question is, that I would like to store configuration data (customizing) from the R/3 in a static class of my WebDynpro application, in order to minimize DB requests. Exists a static class for the whole WebDynpro session or is it destroyed after every user interaction?
Thanks in advance,
Martin

Hi
If I have understood you
You want to create a static class, you are expecting the values will remain same for the lifetime of the
webdynpro app.
In order to understand the use of the static keyword in class declaration, we need to understand the class
declaration itself. You can declare two kinds of classes: top-level classes and inner classes.
Top-level classes
You declare a top-level class at the top level as a member of a package. Each top-level class corresponds to
its own java file sporting the same name as the class name.
A top-level class is by definition already top-level, so there is no point in declaring it static; it is an error to do
so. The compiler will detect and report this error.
you cant write a code like
public static class hello {
it gives an error like
Illegal modifier for the class hello; only public, abstract & final are permitted
Regards
Abhijith YS

Creation of a static class with private methods

I'm new to java programming and am working on a project where I need to have a static class that does a postage calculation that must contain 2 private methods, one for first class and one for priority mail. I can't seem to figure out how to get the weight into the class to do the calculations or how to call the two private methods so that when one of my other classes calls on this class, it retrieves the correct postage. I've got all my other classes working correct and retrieving the information required. I need to use the weight from another class and return a "double". Help!!!
Here's my code:
* Title: Order Control 
* Description: Order Control Calculator using methods and classes
* Copyright: Copyright (c) 2002
* Company: Info 250, sec 001, T/TH 0930
* @author Peggy Blake
* @version 1.0, 10/29/02
import javax.swing.*;
public class ShippingCalculator
static double firstClass, priorityMail;
//how do I get my weight from another class into this method to use??? not sure I understand how it works.
public static double ShippingCalculator(double weight)
String responseFirstClass;
double quantity, shippingCost;
double totalFirstClass, firstClass, priorityMail, totalShipping;
double priorityMail1 = 3.50d;//prioritymail fee up to 1 pound
double priorityMail2 = 3.95d;//prioritymail fee up to 2 pounds
double priorityMail3 = 5.20d;//prioritymail fee up to 3 pounds
double priorityMail4 = 6.45d;//prioritymail fee up to 4 pounds
double priorityMail5 = 7.70d;//prioritymail fee up to 5 pounds
quantity = 0d;//ititialization of quantity
// weight = 0d;//initialization of weight
// shippingCost = 0d;
//calculation of the number of items ordered..each item weights .75 ounces
quantity = (weight/.75);
if (quantity <= 30d)
//add 1 ounce to quantities that weigh less than 30 ounces
weight = (weight + 1);
else
//add 2 ounces to quantities that weigh more than 30 ounces
weight = (weight + 2);
if (weight > 80d)
//message to orderclerk ..order over 5 lbs, cannot process
JOptionPane.showMessageDialog(null, "Order exceeded 5 lbs, cannot process");
//exit system, do not process anything else
System.exit (0);
else
if (weight < 14d)
//send message to customer: ship firstclass or priority, y or n
responseFirstClass = JOptionPane.showInputDialog(null, "Ship first class? y or n?");
if (responseFirstClass.equals("y"))
//compute FirstClass shipping cost
totalFirstClass = ((weight - 1) * .23d) + .34d;
firstClass = totalFirstClass;
else
//compute PriorityMail cost for orders less than 14 ounces
priorityMail = (priorityMail1);
else
if (weight <=16d)
//compute totalshipping for orders up to 16 ounces
priorityMail = (priorityMail1);
else
if (weight <=32d)
//compute totalshipping for orders up to 32 ounces
priorityMail = (priorityMail2);
else
if (weight <=48d)
//compute totalshipping for orders up to 48 ounces
priorityMail = (priorityMail3);
else
if (weight <= 64d)
//compute totalshipping for orders up to 64 ounces
priorityMail = (priorityMail4);
else
//compute totalshipping for orders up to 80 ounces
priorityMail = (priorityMail5);
priorityMail = 0d;
firstClass = 0d;
firstClassMail ();
priorityMailCost ();
//I think this is where I should be pulling the two methods below into my code, but can't figure out how to do it.
shippingCost = priorityMail + firstClass;
return (shippingCost);
}//end method calculate shipping
private static double firstClassMail()//method to get first class ship cost
return (firstClass);
}//end method firstclass shipping
private static double priorityMailCost()//method to get priority mail cost
return (priorityMail);
}//end method priorityMail
}//end class shipping calculator

public class A {
public String getXXX () {
public class B {
A a = new A();
public void init () {
a.getXXX();
}

How can I compile and run other java classes from within an application?

Hello there everyone! I really hope that someone can help me. I am writing a program that must be able to compile and run other java classes that are in different files, much like development environments like Kawa or Forte allow you to do.
There has to be a way of doing this ( I hope!! ), but i can't seem to find it!!
I have tried using this command to compile:
Runtime.getRuntime().exec ("c:\\programs\\javac className.java");
...and this one to run:
Runtime.getRuntime().exec ("c:\\programs\\java className");
...but neither works!!! I can compile and run classes that are in the same file as my application, but I can't get it to work at all for files in different directories or files.
PLEASE, PLEASE, PLEASE help me - i've run out of ideas, and i need this to be working in 3 days!!!
Thank you very much for any help anyone can give me, I really appreciate it!! Thanks again!!
Adrian ( ...in distress!! )

public class JavaCompiler{
   public static void main(String[] args)throws Exception{ //sorry bout the laziness
      if(args == null || args.length != 1){
         System.out.println("Usage: java JavaCompiler MyClass.java");
         System.exit(0);
      String className = args[0];
      Runtime rt = Runtime.getRuntime();
      Process p = rt.exec("javac " + className); //consider setting cpath for this
      p.waitFor();
      //now try to run after it is done.
      p = rt.exec("java " + className.substring(0, (className.length() - ".java".length()));
      p.waitFor();
      //do some other stuff
}This should get you going. You may consider looking into the System.getProperty() method in order to determine the type of OS it is running on in order to findo out what command to run. I know that the sun tool listed above is nice, but by my understanding the sun tools provided are not guaranteed to stay the same. I'm no expert on this matter, but that is one of the reasons there is no API documentation for those tools. Also, I don't believe those tools come packaged with the JRE. (Of course if you are making an IDE it will be expected that the user has an sdk installed. Good luck with figuring this thing out.

Static Class JMS Listener

I am designing an EJB component (MessageDrivenBean) that requires
dynamic ("hot") configuration changes. As such, the bean must be
notified somehow of configuration changes in the DB (rather than have
to poll the DB for changes at every method call).
I'm thinking of implementing this functionality using a static class
instance (singleton) that is shared between the multiple instances of
the bean. This static instance would listen on a JMS topic for
configuration change events and update its internal cache accordingly
(by getting the configuration information from the DB). The beans
would then access this in-memory static instance everytime they need
configuration info instead of polling the database. By using the JMS
topic, I guarantee that clustered instances of Weblogic will all be
notified of the database changes (each instance would have its own
"cache" singleton).
I'm pretty sure all of this will work, but I'm equally sure that I'm
violating some EJB rules. Singletons and JMS listeners are generally
discouraged. Are there any alternatives to this design?

Hi Joost,
This all seems to be pretty complicated. Not to mention that you can not
guarantee that members of a cluster will be notified simultaneously.
Why don't you want using the database?
"Joost Ouwerkerk" <[email protected]> wrote in message
news:[email protected]..
I am designing an EJB component (MessageDrivenBean) that requires
dynamic ("hot") configuration changes. As such, the bean must be
notified somehow of configuration changes in the DB (rather than have
to poll the DB for changes at every method call).
I'm thinking of implementing this functionality using a static class
instance (singleton) that is shared between the multiple instances of
the bean. This static instance would listen on a JMS topic for
configuration change events and update its internal cache accordingly
(by getting the configuration information from the DB). The beans
would then access this in-memory static instance everytime they need
configuration info instead of polling the database. By using the JMS
topic, I guarantee that clustered instances of Weblogic will all be
notified of the database changes (each instance would have its own
"cache" singleton).
I'm pretty sure all of this will work, but I'm equally sure that I'm
violating some EJB rules. Singletons and JMS listeners are generally
discouraged. Are there any alternatives to this design?Regards,
Slava Imeshev

Attributes of private static class - private or package private?

Consider the following code:
public class Outer {
    // Remainder omitted
    private static class Nested {
        int someInt           = 10;
        String someString = "abc";
}The nested class Nested is declared private, as it is only used by the Outer class... now I wonder... should I declare Nested's attributes private oder package private... either way, they can't be accessed from the outside... any ideas?

stevops wrote:
either way, they can't be accessed from the outsideThat is true. However, when in addition the members of class Nested are declared as private, you will not be able to access them also from within the class Outer as well, i.e. int i = Nested.someInt; will give you compliation errorsAs a matter of fact, at most it'll generate some warnings, for it (the compiler) will generate synthetic accessor methods for Nested's fields.
All in all, if you plan to access private class members from an enclosing (or inner) class, you really only have two options: make them explicitly package-private, or make them implicitly so.

Can we create static class in actionscript 3.0

Hi If yes please send me chunk of code .
thanks

Hi Prashanth,
There is no specifically a Static class in Flex that you can declare it at the compile time. However you can have Static variables and methods in your class and you can call them using the class name itself without creating an instance of that class.
Here is the chunk of code...
package com.constants
[Bindable]
public class ConsumerMessageConstants
public static const UNABLE_TO_ENROLL_PLANS_MESSAGE_ID:String = "10000";
public static const MARITAL_STATUS_UPDATED_MESSAGE_ID:String = "10001";
public static const ERROR_IN_EDITING_MARITALSTAUS_MESSAGE_ID:String = "10002";
public static const SMOKER_STATUS_SAVED_SUCCESSFULLY_MESSAGE_ID:String = "10003";
public static const PASSWORD_RESET_REQUIRED_MESSAGE_ID:String = "10004";
public static const ADDRESS_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10005";
public static const UNABLE_TO_REMOVE_THIS_DEPENDENT_MESSAGE_ID:String = "10006";
public static const EMPLOYEE_SALARY_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10007";
public static const ERROR_IN_EDITING_SALARY_MESSAGE_ID:String = "10008";
public static const PLEASE_SELECT_A_CONSIDER_PLAN_MESSAGE_ID:String = "10009";
public static const YOU_MUST_CHOOSE_A_PLAN_COVERAGE_LEVEL_MESSAGE_ID:String = "10010";
public static const PLEASE_SELECT_PLAN_TO_LOCK_PORTFOLIO_MESSAGE_ID:String = "10011";
public static const DEEPDIVE_INFORMATION_SAVED_SUCCESSFULLY_MESSAGE_ID:String = "10012";
public static const NO_DATA_TO_DISPLAY_MESSAGE_ID:String = "10013";
public static const NO_PLANS_AVAILABLE_TO_ENROLL_MESSAGE_ID:String = "10014";
public static const NO_PLANS_TO_BE_ENROLLED_MESSAGE_ID:String = "10015";
public static const PASSWORD_CHANGED_SUCCESSFULLY_MESSAGE_ID:String = "10016";
public static const NEW_PASSWORD_AND_CONFIRM_PASSWORD_SAME_MESSAGE_ID:String = "10017";
public static const YOUR_DATA_IS_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10018";
public static const HEALTH_PLAN_IS_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10019";
public static const HEALTH_PLAN_IS_ADDED_SUCCESSFULLY_MESSAGE_ID:String = "10020";
public static const MONEY_PLAN_IS_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10021";
public static const MONEY_PLAN_IS_ADDED_SUCCESSFULLY_MESSAGE_ID:String = "10022";
public static const PROTECTION_PLAN_IS_UPDATED_SUCCESSFULLY_MESSAGE_ID:String = "10023";
public static const PROTECTION_PLAN_IS_ADDED_SUCCESSFULLY_MESSAGE_ID:String = "10024";
public static const UNABLE_TO_RETRIEVE_PATHS_MESSAGE_ID:String = "10025";
public static function func1():Void
public static function func2():Void
public function ConsumerMessageConstants()

Static Class to Component?

Hi
i created One Static Class. This class used to Trim, TrimFront, TrimBack, Replace in string.
How can i convert this class to component?
Thanks
Regards
Balasubramaniyan.S

This should get you going: http://www.adobe.com/devnet/flash/articles/creating_as3_components.html
If you need more just Google on 'flash swc' and you'll get lots of info.

Error LNK2028: unresolved token (0A00001F) "public: static class oracle....

Hello,
I am using MSVC C++ Express and Oracle XE. When I am building my C++ script I get the following errors:
DbCheck.obj : error LNK2028: unresolved token (0A00001F) "public: static class oracle::occi::Environment * __clrcall oracle::occi::Environment::createEnvironment(enum oracle::occi::Environment::Mode,void *,void * (__clrcall*)(void *,unsigned int),void * (__clrcall*)(void *,void *,unsigned int),void (__clrcall*)(void *,void *))" (?createEnvironment@Environment@occi@oracle@@$$FSMPAV123@W4Mode@123@PAXP6MPAX1I@ZP6MPAX11I@ZP6MX11@Z@Z) referenced in function "int __clrcall main(cli::array<class System::String ^ >^)" (?main@@$$HYMHP$01AP$AAVString@System@@@Z)
DbCheck.obj : error LNK2019: unresolved external symbol "public: static class oracle::occi::Environment * __clrcall oracle::occi::Environment::createEnvironment(enum oracle::occi::Environment::Mode,void *,void * (__clrcall*)(void *,unsigned int),void * (__clrcall*)(void *,void *,unsigned int),void (__clrcall*)(void *,void *))" (?createEnvironment@Environment@occi@oracle@@$$FSMPAV123@W4Mode@123@PAXP6MPAX1I@ZP6MPAX11I@ZP6MX11@Z@Z) referenced in function "int __clrcall main(cli::array<class System::String ^ >^)" (?main@@$$HYMHP$01AP$AAVString@System@@@Z)
F:\Visual C++ Projects\DbCheck\Debug\DbCheck.exe : fatal error LNK1120: 2 unresolved externals
I downloaded OCCI for Visual C++ 8 (Windows) Download (zip). but still get the error. I also linked oraocci10.lib and oraocci10d.lib but still nogo. I did it in the project property page under linker->input->additional dependencies. The configuration I choosed was:
Configuration: Debug
Platform: Win32
Is there a way to determine what is missing or what is causing the error, does one of you know how to solve the problem?
Thanks
Rodger

Could you try to create a CLR command line application and get that to run first ?
This example here links and runs fine for me (it is a bit messy since I've been experimenting with my own mem leak problems, but it runs fine, you might want to change the select statement though)
(The stdafx.h file only contains #pragma once, the TestRead class is there just to test mapping from std::string to System::String)
#include "stdafx.h"
#include <occi.h>
using namespace System;
using namespace std;
using namespace oracle::occi;
public ref class TestRead
public:
 System::String^ GetStr(int index);
internal:
 oracle::occi::ResultSet* m_resultSet;
System::String^ TestRead::GetStr(int index)
 try
 return gcnew System::String(m_resultSet->getString(index).c_str());
 catch (const oracle::occi::SQLException& ex)
 throw gcnew System::Exception(gcnew System::String(ex.getMessage().c_str()));
 return "";
int main(array<System::String ^> ^args)
try
 oracle::occi::Environment *env = oracle::occi::Environment::createEnvironment((oracle::occi::Environment::Mode)(oracle::occi::Environment::OBJECT | oracle::occi::Environment::THREADED_MUTEXED));
Connection *conn = env->createConnection("test","test","");
try
oracle::occi::Statement *stmt = conn->createStatement("Select site_addr From parcel");
oracle::occi::ResultSet *rs = stmt->executeQuery();
 TestRead^ testread = gcnew TestRead();
 testread->m_resultSet = rs;
//int MktId;
string MktName;
int rowno = 1;
while (rs->next())
 System::String^ name = testread->GetStr(1);
rowno++;
 // if (rowno > 100)
 // break;
stmt->closeResultSet(rs);
conn->terminateStatement(stmt);
catch (SQLException &ex)
env->terminateConnection(conn);
oracle::occi::Environment::terminateEnvironment(env);
throw;//re-throw
env->terminateConnection(conn);
oracle::occi::Environment::terminateEnvironment(env);
catch (SQLException &ex)
Console::WriteLine(L"Hello World");
return 0;
}

Cause Code 97 Error Class 3

I just upgraded to a Rezound HTC smart phone. When I send a text message, I get "service not available" and "Cause Code 97 Error Class 3"
I have tried *228 and it doesn't go through or give me any options. We had texting shut off on our previous phones so we wouldn't rack up DATA charges. But voice-mail and internet IS working on this new phone. Thanks for any info!
Davy

On an LTE phone, the SIM card is activated automatically when the phone is powered up, so *228 is non-functional. You may want to call customer service to verify that messaging was added to your account.

Inner static class implementing interface

Hello,
I have a sample program to test on reflections. here the code goes
import java.lang.reflect.*;
import java.awt.*;
import java.lang.*;
import java.io.*;
public class SampleName {
 public static void main(String[] args) {
 NewClass b = new NewClass();
 System.out.println("Calling printModifiers");
 printModifiers(b);
 System.out.println("Calling printInterfaces");
 printInterfaces(b);
 static void printModifiers(Object obj){
 Class cl = obj.getClass();
 int mod = cl.getModifiers();
 if(Modifier.isPublic(mod ))
 System.out.println("Public");
 if(Modifier.isPrivate(mod ))
 System.out.println("Private");
 if(Modifier.isFinal(mod ))
 System.out.println("Final");
 if(Modifier.isStatic(mod ))
 System.out.println("Static");
 if(Modifier.isAbstract(mod ))
 System.out.println("Abstract");
 static void printInterfaces(Object o) {
 Class c = o.getClass();
 String str = c.getName();
 System.out.println("name " +str);
 Class[] theInterfaces= c.getInterfaces();
 if(theInterfaces.length ==0)
 System.out.println("no interfaces here ");
 else
 for(int counter = 0; counter<theInterfaces.length;counter++)
 String interfaceName = theInterfaces[counter].getName();
 System.out.println("Interface Name :- " +interfaceName);
static class NewClass implements newInterface {
}i have an interface in t same folder as
public interface newInterface
}i get an error as below while compiling this java code
SampleName.java:54: cannot resolve symbol
symbol : class newInterface
location: class SampleName.NewClass
static class NewClass implements newInterface {
 ^
1 errorplease explain me what is the fault i am making and how can it be resolved.
tnx

java -cp .;<any other directories or jars> YourClassNameYou get a NoClassDefFoundError message because the JVM (Java Virtual Machine) can't find your class. The way to remedy this is to ensure that your class is included in the classpath. The example assumes that you are in the same directory as the class you're trying to run.
The Gateway to Classpath Nirvana
Setting the class path (Windows)
How Classes are Found

Purpose of static classes

What is the purpose of making a class static?
public static class December {
}The only reason I can see is to access inner-classes without instantiating the outer-class? Are there any other?

see these
http://forum.java.sun.com/thread.jsp?forum=31&thread=277820
http://forum.java.sun.com/thread.jsp?forum=31&thread=305260

Alternative to Static Class Inherit

Greetings,
I’ve been using some code for years in a different number of applications but that involves a lot of copy paste and is a nightmare to maintain. For that reason I’ve took some time to re-organize some of my codes and that mainly involves
splitting it into multiple projects for latter inclusion in a number of solutions.
So far so good and I’d say 95% is done but I’m now stuck with a Static Class I need to use. I basically need a few “Global” parameters and settings to be available across every solution. I know I can’t Inherit a Static Class nor override
a Field to return a different value unfortunately.
In a nutshell:
myFrameworkProject
namespace
myFramework.Classes{
 //these contains general stuff
used in every project
 public static class Globals{
 public static
XPTO veryImportantProperty = new XPTO()
 public static
Settings Settings = new Settings();
public void doSomethingImportant();
Public class Settings{
 Private
string Username;
 Private
string Password;
 Private
string Whatever;
myFancyProject
namespace
myFancyProject.Classes{
 //these add specific stuff used
in this project
 public static class Globals : myFramework.Classes.
Globals {
 public static
override mySettings Settings = new mySettings();
Public class mySettings: myFramework.Classes .Settings{
 //some
more specific settings I need
 Private
string SomethingElse;
What are my options? I’ve been trying to play with Singletons but for some reason I just can’t seem to make it work the way I want to…probably because it’s just not the right way to do it in the first place.

I think you are over thinking it a little bit. The example you have above would be great if you had multiple setting types you wanted to retrieve within the same application domain instance using keys or specific types. The way I understand your problem
is you have one settings type per application that you run with various applications sharing a code base. Here is an example I created for you which better illustrates the solution I had in mind when I read your problem.
There are 2 namespaces, the one for your custom project(s) named FancyProject and then the Core / framework. Hope this helps!
namespace JF.FancyProject
using JF.Framework.Classes;
// in initialization of your default application domain (ie. in your application startup)
// inject your MySingleton with your custom implementation of ISettingsBuilder
// this can be done in many ways from hard coding in each startup routine to IoC / Dependency Injection
// the end result is this
public static class Console
public static void Main(params string[] args)
MySingleton.Initialize(new ConcreteSettingsBuilder());
// now you can use it where ever
var temp = MySingleton.SettingsConcreteInstance<ConcreteSettings>().SomethingCustom;
// or base
var temp1 = MySingleton.SettingsInstance.SomeBaseThing;
public sealed class ConcreteSettings : JF.Framework.Classes.SettingsBase
public string SomethingCustom { get; set; }
public sealed class ConcreteSettingsBuilder : BaseSettingsBuilder, ISettingsBuilder
public override SettingsBase CreateSettings()
var settings = new ConcreteSettings();
// call the base if you need to get standard settings populated
base.populateBaseSettings(settings);
// populate all of your custom settings
return settings;
namespace JF.Framework.Classes
public abstract class SettingsBase
public string SomeBaseThing { get; set; }
// base settings and behavior that can be abstracted
public static class MySingleton
private static SettingsBase _settings;
private static Lazy<SettingsBase> _lazyCreationMethod;
public static void Initialize(ISettingsBuilder builder)
_lazyCreationMethod = new Lazy<SettingsBase>(builder.CreateSettings);
public static SettingsBase SettingsInstance
get { return _lazyCreationMethod.Value; }
public static T SettingsConcreteInstance<T>() where T : SettingsBase
return (T) _lazyCreationMethod.Value;
public abstract class BaseSettingsBuilder : ISettingsBuilder
public abstract SettingsBase CreateSettings();
protected virtual void populateBaseSettings(SettingsBase settings)
// if you find many of your settings are created the same way use a base class
public interface ISettingsBuilder
SettingsBase CreateSettings();
Edit:
One more thought. I do agree with some of the other posters that for bigger projects the use of a Singleton pattern is not a good idea. For little applications it does not matter too much because chances are there is not enough substance that it will
hinder your code and the development cycles are generally very short.
Should you want to reconsider the Singleton pattern then I recommend you look at something like
Autofac, you could use this to inject instances of your ISettingsBuilder, or other concrete instances, directly into your dependent classes and you could take it further in developing self containing services that you could
inject as well.
Again, for small projects its not a big deal but if you ever start on something a bit more complex its worth looking into.
-Igor

[svn] 1176: compiler: moving all the graphing classes to...

Revision: 1176
Author: [email protected]
Date: 2008-04-10 10:38:20 -0700 (Thu, 10 Apr 2008)
Log Message:
compiler: moving all the graphing classes to... the util.graph package (ala asc)!
Bugs: n/a
QA: No
Doc: No
Modified Paths:
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/CompilerAPI.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/swc/SwcMovie.java
flex/sdk/trunk/modules/compiler/src/java/flex2/linker/ConsoleApplication.java
flex/sdk/trunk/modules/compiler/src/java/flex2/linker/DependencyWalker.java
flex/sdk/trunk/modules/compiler/src/java/flex2/linker/FlexMovie.java
flex/sdk/trunk/modules/compiler/src/java/flex2/linker/SimpleMovie.java
flex/sdk/trunk/modules/compiler/src/java/flex2/tools/oem/Project.java
Added Paths:
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/Algorithms.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/DependencyGraph.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/Edge.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/Graph.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/Vertex.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/graph/Visitor.java
Removed Paths:
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/DependencyGraph.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/Algorithms.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/Edge.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/Graph.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/Vertex.java
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/util/Visitor.java

We had this same case. I used web adi to moved the the classes to the right catalogues/offerings. Use the OTA_EVENT_API.UPDATE_CLASS procedure and OTA_EVENTS_V view to get all class listings. Find the right activity_version_id and parent_offering_id of the catalogue you want the classes to moved to. Use this values to change the values of the activity_version_id and parent_offering_id of the classes you will be moving.

Compile causes info in static class to be lost

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