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(Disclaimer: these examples are given in the context of building a compiler, but this question is all about the Visitor pattern and does not require any knowledge of compiler theory.) I'm going through Andrew Appel's Modern Compiler Implementation in ...
Started by danben on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
So, the visitor method can build up the structure in a local visitor would be appending to a StringBuilder that is held as a member variable (or as a final local variable in a method that created....
Was written for) it is also part of an object .
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I want to know whether the below is an acceptable use of the visitor pattern. I feel a little uncomfortable returning from an Accept() or Visit() call - is this an appropriate usage of this pattern and if not, why not?
Note: Apologies for the long code...
Started by kronoz on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The Accept method generic, so what's returned is decided by the visitor not the visitee:
interface IAnimalElement { <T> T Accept(IAnimalVisitor<T> visitor); } interface IAnimalVisitor<T> { T Visit and Accept methods return....
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I love BlogEngine. But from what I can se it does not collect the standard information about the visitors I would like to see (referrer, browser-type and so on).
When I log in as Admin I have a menu item named "Referrer". I can choose a weekday and then...
Started by Stefan on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I find that each one provides useful information that the other doesn't .
And StatCounter to track visitor stats.
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Ask your Facebook Friends
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I keep seeing references to the visitor pattern in blogs but I've got to admit, I just don't get it. I read the wikipedia article for the pattern and I understand its mechanics but I'm still confused as to when I'd use it.
As someone who just recently...
Started by George Mauer on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
Without....
One way to look at it is that the visitor pattern is a way of letting your clients add, complexity metrics analysis.
Many (prominent 1! moments ever.
The reason for your confusion is probably that the Visitor is a fatal misnomer.
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I understand that server-side validation is an absolute must to prevent malicious users (or simply users who choose to disable javascript) from bypassing client-side validation. But that's mainly to protect your application, not to provide value for those...
Started by Kevin Pang on
, 24 posts
by 24 people.
Answer Snippets (Read the full thread at stackoverflow):
I think it's fair to assume that the majority.
The site is accessible to those using screen readers.
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What is the difference between applying the visitor design pattern to your code , and code like the following :
interface Dointerface { public void perform(Object o);
}
public class T {
private Dointerface d; private String s; public String getS() { return...
Started by Vhaerun on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
With a visitor....
The visitor pattern uses interfaces, but its purpose is to be able to perform an operation to one and the setInterface .
There is quite a big difference.
Stick with the standard Visitor and accomplish the same thing.
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Hi,
After I've found out that WMP is not best idea for Firefox users as they need to install additional plugin, I wanted to try out JW player and I googled all I could about audio streaming and flash players.
I got something like www.onlineradio.com/3...
Started by Skuta on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
That's not only fair towards the providers but you.
(If you cannot find it in any FAQ, etc.).
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Say you have a pay-site with some online courses. And you want to make sure that one person doesn't just buy access, and then give the username and password to all his friends, so they can do the courses for free.
How would you go about this?
What we'...
Started by peirix on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
If the user logs in in with a different....
Then associate that cookie with the user account and require use of the cookie to login .
I'm sure some people would try to use cookies (assuming users don't change computers)
Associate an IP address with a cookie .
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For example if I am a webmaster of my own webpage, I am able to put a counter and count the number of my visitors perday.
but is it possible to use a soft or code to find it for a site which I am not its webmaster? for example how can find number of visitors...
Started by anna hussie on
, 42 posts
by 33 people.
Answer Snippets (Read the full thread at webdigity):
You will....
You can even see how long did a visitor take on specific page and which browser he is using as well from enabling Google Analytics? Google analytic will keep track of every visitor, as well as the traffic have all information's,..
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Visitors in chat Are surely not always what they seem. Unless there really are a vast number of nubile young women in their twenties who would like nothing better than to chat with middle-aged blokes. Call me suspicious but I have my doubts!
Started by Ned59 on
, 26 posts
by 16 people.
Answer Snippets (Read the full thread at britishspanking):
To becoming a member.But perhaps a filter could be added to the chat room or pm`s whereupon a visitor a visitor to become a member is they do not have the privilege of PM but will this will this eradicate check and reporting to a Mod route....
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