Design Patterns - Observer

[tim]

I have been looking at this pattern and it does make sense to me,
except for one thing.

I thought Java was "pass by value". This pattern seems to me to only
make sense if it is using "pass by reference". Am I missing something
here?

Can you use this pattern with "pass by value"?

 

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

I have been looking at this pattern and it does make sense to me,
except for one thing.

I thought Java was "pass by value". This pattern seems to me to only
make sense if it is using "pass by reference". Am I missing something
here?

Can you use this pattern with "pass by value"?

You can use it in Java.

Why should pass by value be a problem ?

Arne

 

[Manish Pandit]

Can you explain the scenario you are trying to address with this
pattern, and the challenge you are facing?

-cheers,
Manish

 

[Matt Humphrey]

I have been looking at this pattern and it does make sense to me,
except for one thing.

I thought Java was "pass by value". This pattern seems to me to only
make sense if it is using "pass by reference". Am I missing something
here?

Java is pass-by-value and the value passed for an object is its reference.

Matt Humphrey (e-mail address removed) http://www.iviz.com/

 

[tim]

Java is pass-by-value and the value passed for an object is its reference.

Matt Humphrey (e-mail address removed) http://www.iviz.com/

Thanks. I was reading up on it and just found it myself.