Early binding in Java

I need to find two kinds of method calls that use early binding in Java.
I would like to know if my ideas are correct:
I think overloaded functions uses early binding, because the compiler looks at the types of the parameter variables.
I think static functions uses early binding because they are outside of a class.
I think functions define as final uses early binding because they do not change.
Does that make sense? Are those correct method calls that uses early binding please?
Thank you for your help.

a. What is the difference between design patterens and frameworkA design pattern is what you see in a lace curtain and a framework is usally made of wood and used as a support structure (as for a house).
b. What is the difference bewteen composition and generalizationcomposition is a part of decomposition (like with the trash heap in the backyard) and generalization is streotyping
c. Hash map and Hash tableEating hashbrowns at the table or (for whatever odd reason) sitting on a map
d. What are virtual functionsThese are what supervisor's and manager's have (as they have no real function)
e. How do we do late binding and early binding in javaDepends on when you do your coding, morning or evening
P.S.
Sorry for the joke on your behalf, but after dizzy's post I just had to do the same in a sarcastic manner. ;-)

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and my VB client had to be stopped?
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Hi,
This problem Could happen when you referesh quality or test system.
Your delta setup for the related master and transaction data needs to be reinit.
What happens is when you init. the delta and subsequent delta is all maintained in your source system
please check Notes 852443,424848,834229
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Message was edited by:
Teja badugu

[svn:fx-trunk] 11535: Don't early bind lexical references in a with block.

Revision: 11535
Author:   [email protected]
Date:     2009-11-06 13:50:52 -0800 (Fri, 06 Nov 2009)
Log Message:
Don't early bind lexical references in a with block. It causes
outer locals to shadow properties on the with object.
(bug ASC-2257; r=peted)
Ticket Links:
    http://bugs.adobe.com/jira/browse/ASC-2257
Modified Paths:
    flex/sdk/trunk/modules/asc/src/java/macromedia/asc/semantics/FlowAnalyzer.java

This line:
Jul 30 18:34:00 sleepy dhclient: wmaster0: unknown hardware address type 801
According to your kernel log, your wireless card is wlan0. I'm not sure what wmaster0 is, but I'm pretty sure that's the network device causing the issue here; NetworkManager can be pretty finicky when your network configuration is not correct.

Achieving early binding

There have been some messages here about the problem of getting early binding for packaged beans.
I have found a way to achieve that for an individual bean. The solution is to include an explicit BeanInfo class, and not to rely on automatic bean info being obtained by reflection.
I included a BeanInfo class with the following method:
public MethodDescriptor[] getMethodDescriptors()
    Method[] classMethods = beanClass.getMethods();
    Vector publicMethods = new Vector();
    for (int i = 0; i < classMethods.length; i++)
        int modifiers = classMethods.getModifiers();
if (Modifier.isPublic(modifiers))
publicMethods.add(new MethodDescriptor(classMethods[i]));
int count = publicMethods.size();
MethodDescriptor[] methods = new MethodDescriptor[count];
publicMethods.copyInto(methods);
return methods;
Package the bean, making sure the BeanInfo class is in the jar file with the bean.
Install and register the dll.
In VB, add the dll to the project references.
Now you can instantiate the bean with the standard
Set beaninstance = New BeanLib.BeanClassand have early binding for the beans methods.
Regards,
Maarten

I would love to help you get it to work properly, however while trying to build a more complete example today, it seems that it stopped working on my machine.
Even my previous project, which has early binding working, now refuses to run.
I must say that finding this method was more of a side-effect of creating a larger-scale Java-com integration.
My final solution does not rely on the bridge to provide early binding. Instead it automatically generates VB classes that wrap all exported java classes. These classes are compiled into a DLL which then provides early binding to VB projects, including strongly typed object return types. Internally the wrapper classes use late binding.
Unfortunately I am unable to provide the wrapper generator, as it is owned by my current employer. If anybody is interested in writing one, I suggest using a javadoc Doclet as the base technology. That will take care of all the parsing and referencing of the java classes, and unlike reflection, it lets you use the actual parameter names in your wrappers.
If I ever find a consistenly working way to achieve early binding with just the sun bridge, I'll be sure to let you guys know.
Kind regards,
Maarten

How to avoid "The application requires an earlier version of Java. "?

Hello, I deployed a Java applet built like this
javac -source 1.4 -target 1.4 foobar.javaThe reason why I do it this way, is that many public libraries, have computers that only have Java 1.4 installed (and I found one case with 1.3 but decided not to go that far), and the users have no way to upgrade them. Hence if I want to deploy an app that can be used by most everybody, which is the whole idea of Java, then I have to use 1.4, no choice.
OK, now I also have users who have the latest Vista and Firefox. On those computers, they see the following warning when my applet tries to run:
"The application requires an earlier version of Java. Do you want to continue? Run or Cancel The required version of Java, 1.6.0-oem, is not the latest and may not contain the latest security ..."
Of course, after seeing this kind of warning, I am losing a lot of those users immediately. (and by the way, I am built with 1.4, not 1.6-whatever)
This message is widely reported on the Internet and the solution is always similar - some variation of "uninstall and reinstall the latest Java".
This of course is a NON_STARTER. I cannot request my users, to reinstall Java. they won't bother. The whole idea of Java applets, again, is that I write an applet and the user sees it without having to tweak around with their computer.
So I guess my question is: what can I do in my applet, to prevent these messages from happening on Vista, and at the same time be accessible to public lib computers with Java 1.4?
And second rhetorical question: why can't Sun get their act together and deploy a platform where I can just write my code according to their specs and it will run according to their specs, without any warnings to scare away half of my users??? Please Sun tell me.
Mark
Edited by: Mark_Galeck on Apr 18, 2009 10:33 PM

Mark.
[1.4 is EOL|http://java.sun.com/j2se/1.4.2/] so I suggest you target 1.5.
Youe contention that world should not change because a small proption of near-sighted troglodites insist on wearing frilly collars is complete bunkum. Get over it. Fast.
If ever I get the chance, I shall tell Sun to continue doing exactly what they are doing with regards to developing the core Java language. Hire the best engineers; go forth and prosper; insist on backwards compatability; and never mind the bollocks (here's the sex pistols).
... or maybe one would prefer the MS .NET platform, where no version is at all backwards compatible with any previous one; is supported for just three years; with each CLR occupying a full third of ones modest laptop hard disk?
Be careful what you wish for. You just might get it.
~~ anonCheers. Keith.
Edited by: corlettk on 19/04/2009 16:27 ~~ Typoes!

Wat is early binding and late binding

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Public void amethod(){
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Com2java. early binding and JCOM WLS7

All,
I have been looking at the use of JCOM with WLS 7. Based around supplied examples,
the com-to-java using zero client or late binding appears simple and worked reliably
using entity and session beans, however I have been unable to produce an early bound
com-to-java example or a java-to-com example. In the former case the VB client produces
a GPF (General Protection Fault) when attempting retrieve the home interface of
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(even after following the note 076584 regarding the jintegra code). I am beginning
to doubt the current release. Has anybody succeeded in building an early bound example
or used com2java succesfully.
Regards
Chris

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it's urgent and i really need you all's help...
thanks a lot...

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10g JTree binding causes java.lang.nullpointerexception

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Early problems with Java on my Macbook.

Hi, I am a former high school computer science student and I'm having problems with Java as I've recently moved from Windows to a Mac. The following is a letter I wrote to my prior computer science teacher but he does not seem to be responding. I think all you need to know is that DrawHouse and JumpingJacks are simple Java programs we made in class that utilize an object called DrawingTool (which is a graphics environment). DrawingTool is contained in gpdraw.jar and also was contained in our class' apcslib.jar. Also, FileInput is a class contained in apcslib.jar.
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Do you have any idea about what could be wrong or where I should go from here?
Thanks for all your help!
Bryan Huh

Thanks for the reply, but if it is a problem with how
I'm using DrawingTool, then shouldn't it run with
errors on my Windows comp too?Maybe, maybe not. If you're doing something that's correct on one but not the other - using file names for Windows on Linux Mac), for instance.
The same EXACT source
code will compile and run fine on my Windows comp,
but run with errors on my Macbook. And if it's a bug
with DrawingTool, then shouldn't my Windows comp also
encounter the problem and run with errors?No. the DT programmer could have done the same thing, using code that's correct on Windows but not on Linux. Or there could be a difference in the Java versions on the couputers and code that's valid in the later version is failing in the earlier, or vice versa.

Early sat. morning java enabled a new update internally. now I can't get on BNSF website , it says not verified by a trusted source. Is there a patch or fix for this for mac lion system

BNSF help desk says it was an internal update by java and mac users won't be able to use firefox to log on. The update changed things for mac users. The window that popped up said sun.security validator exception. MD2 with RSA disabled. Cannot be verified by trusted source. I really need this web site for my work. I'm also computer illiterate. Is there some kind of patch or fix for mac lion. HELP.

That file could be set as a Launch Agent or Daemon in your ~/Library or /Library, You could try to look for it or Safeboot your computer and then empty the trash. Safebooting disables Launch Agents/Daemon and Third Party Kernal extensions. Here's the article to Safeboot OS X: What is Safe Boot, Safe Mode? - Apple Support

JAXB External Binding to java.util.Collection

Hi,
By default jaxb converts xsd:sequence to java.util.List. Is there any way to specify that during compilation it will use java.util.Collection instead of List?
TIA,
Herculeus
Edited by: herculeus on May 19, 2009 2:12 PM

repost

Dynamic binding in java

I have say 2 classes - A and B which has the method doSomething()
I have an array of objects - Object[] obj wihch has both A and B.
How can i invoke doSomethin() of the respective class without any hard coding or typechecking inside the loop.

Reflection is not the way to go (though its the
answer for the way you framed your question.) The
proper way is to create an interface and implement
that interface on both of those objects. Then cast
to the interface.
interface Aninterface {
public void doSomething();
class A implements Aninterface {
public void doSomething(){
//something in A fashion
class B implements Aninterface {
public void doSomething(){
//something in B fashion
class Mainclass {
public static void main(String [] params) {
Aninterface [] objs = getObjects();
objs[0].doSomething();
objs[1].doSomething();
Aninterface [] getObjects() {
Classloader cl = new URLClassloader(new []
URL{new URL("path.to.jar.with.classes")};
Class a = cl.loadclass("A");
Class b = cl.loadclass("B");
return new Aninterface [] {(Aninterface
)a.newInstance(),(Aninterface )b.newInstance()};
}This is the proper way of handling dynamic class
loading in Java. The getObjects method would load
those classes dynamically as needed. It only knows
the classes by their interface Aninterface. The
actual classes A and B are never imported into the
main program and are not on the classpath at compile
time.why is that more 'proper' than using reflection? it's the better solution, if you're in a position to do so, but we can't always dictate that classes will implement a particular interface, especially if we're working with third-party code

Dynamic Class Binding in Java

Hi,
I have a pecular problem, that needs a solution.
I have client (rajah.chandan.Client), once loded connects to a server and compares it version infor mation with that of the server. If there is a version mismatch, my client gets the latest .jar file.
Now, the problem:
My, requirements is that once I get the .jar file, I have to load the new version of rajah.chandan.Client. How do I do this? Can I retain the current state of rajah.chandan.Client? How do I use the Java class loader to do this?
Cheers,
--- Chandan !!!!!!!!!!!!!1

You can't load a new version of the class which is the main class, i.e you invoked it as java <main class>.
So your rajah.chandan.Client cannot be the one with the main() function.
The main should be in another class, say ClientMain.
From the ClientMain class, you can load multiple versions of rajah.chandan.Client. Check out URLClassLoader to load new versions of classes.

Early binding in Java

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