David's Untitled Life

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I got this message from Here.Microsoft and SAP will dev a new product named Duet.This is it's site:http://www.duet.com/
Office will be the Front end as Presentation and SAP will be the Application layer. I thought Office's smart client is a great tech before. Now office and SAP make a perfect bound. Here is the Architech diagram:

Because of focusing on SAP field and busying with a Bank Project,i haven't visit most tech webs such as TSS ajaxian for a long time.But i sitll care the evolution of JAVA world.
Today i found a new word--comet.No, not Halley's comet,yet another buzzword in AJAX world.
It's a approach to improve the interaction of web application after AJAX.The server will hold a connection with client and push message to the client .
More information please visit the related sites:
http://www.irishdev.com/NewsArticle.aspx?id=2166
http://www.irishdev.com/NewsArticle.aspx?id=2173

I'm implementing upload feature.Javascript can't manipulate file on client machine for security,so i came to iframe firstlly.But i still wonder GMail and microsoft live mail's solution.I found that there were few discussion in domestic ajax forum.But there are many voerseas components.I found all of them use iframe to solve this problem.

So we still need iframe as a approach on AJAX way.

• Concern A particular issue, concept or area of interest for an application. Examples include transaction management, persistence, logging and security.
• Crosscutting Concern A concern in which the implementation cuts across many classes. These are often difficult to implement and maintain with OOP.
• Aspect The modularization of a crosscutting concern; implemented by gathering and isolating code.
• Join Point A point during the execution of a program or class. In Spring's AOP implementation, a join point is always a method invocation. Other examples include accessing fields, where read or write access occurs on an instance variable, and exception handling.
• Advice An action taken at a particular join point. Different types of advice in Spring include around, before, throws and after returning. Of these, around is the most powerful, as you get the opportunity to do something before and after a method is invoked. The previous TraceInterceptor used around advice by implementing the AOP Alliance's MethodInterceptor.
• Pointcut A set of join points specifying when an advice should fire. Pointcuts often use regular expressions or wildcard syntax.
• Introduction Adds fields or methods to an advised class. Spring allows you to introduce new interfaces to any advised object. For example, you could use an introduction to make any object implement an IsModified interface, to simplify caching.
• Weaving Assembles aspects to create an advised object. This can be done at compile time (this is how AspectJ does it) or at runtime. The Weaving Strategies section later in this chapter discusses in detail the different strategies for weaving (that is, implementing AOP).
• Interceptor An AOP implementation strategy, where a chain of interceptors may exist for a particular join point.
• AOP Proxy An object created by the AOP framework, including advice. In Spring, an AOP proxy will be a JDK dynamic proxy or a CGLIB proxy.
• Target Object An object containing the join point. In frameworks using interception, it's the object instance at the end of an interceptor chain. Also called an advised or proxied object.

See DFlying's finding:
Yep,No Block Scope concept in JavaScript.Only the global and function Scope.You can use "var" to declare a global variable and use "var" agian to declare a homonymous variable in a function.In the function ,the second one works.But there is no Block scope.
Check the codes below,it's a demo for "NO BLOCK SCOPE"
function test(o) {var i = 0; // i is defined throughout functionif (typeof o == "object") {var j = 0; // j is defined everywhere, not just blockfor(var k = 0; k < 10; k++) { // k is defined everywhere, not just loopdocument.write(k);

}document.write(k); // k is still defined: prints 10}document.write(j); // j is defined, but may not be initialized}

But,You still need to care javascript's FUNCTION SCOPE.Also see code snippet:
var scope = "global";

function f( ) {alert(scope); // Displays "undefined", not "global"var scope = "local"; // Variable initialized here, but defined everywherealert(scope); // Displays "local"}f( );
Right,thought you alert(scope) first and then define a new functin scope variable scope.However,once you define a function scope vriable,it will hide the global variable in the function body,whatever the definition order.

Rasmus Lerdorf, creator of the PHP langauge, has a new tutorial on his site today that looks at the creation of a "no-framework PHP MVC framework" using PHP5, the Yahoo! User Interface Library, and JSON.

He steps through the entire process of working up the "non-framework" - the goals of the project, why to go with the MVC approach for the structure, and, of course, the code.

That arose the PHP's own MVC Pattern discussion in PHP Community.But i have my own view.Here is my response in one of most famous PHP community:

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DBDesigner is a great open source Database modeling tools especially for MySQL.But the whole develop team have worked for MySQL to develop MySQL workbench.So the product was stop upgrating.We must modify MySQL5's password storage type by SET PASSWORD = OLD_PASSWORD('myPass') on user table of MySQL5 to connect MySQL again.
Now,we can use it again:)