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  • How do I call a non-public method of a public class in Clojure?

    - by sramsay
    I'm calling the twitter4j library using Clojure like so: (def twitter (. (TwitterFactory.) getInstance)) This works fine when I call it as a script. But when I use gen-class, I get: java.lang.IllegalArgumentException: Can't call public method of non-public class: public java.lang.Object twitter4j.TwitterFactoryBase.getInstance() Is there a workaround for this?

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  • jQuery apply functionality only to class and parent elements.

    - by kylex
    I have the following list: <ul> <li class="topCurrent">One <ul> <li>One-1 <ul> <li>One-1.1 <ul> <li class="current">One-1.1.1 <ul> <li>One-1.1.1.1</li> <li>One-1.1.1.2</li> <li>One-1.1.1.3</li> </ul> </li> <li>One-1.1.2</li> </ul> </li> <li>One-1.2</li> </ul> </li> <li>One-2</li> <li>One-3</li> </ul> </li> <li>Two <ul> <li>Two-1</li> <li>Two-2</li> </ul> </li> Using the following jQuery: $("ul li ul").hide(); $("ul li").hoverIntent( function(){ $(this).children('ul').slideDown('fast'); }, function(){ $(this).children('ul').slideUp('fast'); } ); What this does is hide all of the ul below the top level ul until there is a hover over it. What I would like to do is this: If an li has a class="current" I would like that structure to be open up until the point that current is hit. It would still allow the ul below it to be displayed on a hover, as well as any other ul's, but at no point would the parents of class="current" be hidden. Suggestions? This problem has been driving me crazy. Thanks!

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  • How to change the default "double click" action of a web service in a class library (VS2010)?

    - by JL
    I have a web service defined as follows, residing in a class library: [WebService(Namespace = "http://comp.com/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. // [System.Web.Script.Services.ScriptService] public class SendingItems_new : System.Web.Services.WebService When I double click it, instead of going to code view, it shows the design view. I NEVER use design view, so how can I get it to open up code view instead, its very annoying having to flick from design view each time. Thank you

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  • Given a PHP class would be the best and simplest way to override one or two of its methods with one

    - by racl101
    Here's the objective. I have a PHP class and there are one or two of its methods that I would like to override with my own. As I understand OOP (in PHP and in general) I could write a child class that extends it and overrides the functionality of the methods in question. However, I was wondering if this is the best way of achieving this task and if this is a proper use for child classes or if there is something better in PHP for what I'm trying to do.

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  • how to use the results of a method in another method in a different class initialization at vb.net

    - by singgih
    I have a class which has the following methods: Public Function rumusbuffer () As Decimal buffer = (ukuranblok - pntrblok) / (ukrnrecord + pntrblok) Return buffer End Function Public Function rumusW () As Decimal interblock = pntrblok + ((pntrblok + intrblok) / buffer) Return interblock End Function how can I make the buffer can be used on its function rumusw but different forms so that her class should be re-initialization .. but the calculation method can rumusbuffer rumusw d use in the method?

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  • if i call an interface method will it get the method body from implementation class and execute ?

    - by sij
    please forgive me if i am wrong: I have an interface Interface1 I have its implementation Imple implements Interface (all methods hav been implemented :) ) now consider a third class CheckCall can I do a call in the class CheckCall like I mention below Interface1 interface1; interface1.method(); all necessary imports have been done. Please tell me is it possible or not , if not then ok and if yes then tell me what will happen if i have more than one impl classes for the same interface and i am doing the same call.

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  • How to call a PHP class member function from a Java file?

    - by Jack
    I am using PHP/Java bridge to run PHP scripts on the Tomcat server. Can someone point me to an example as to how to call my PHP scripts from a Java file. <?php class X{ //variables //functions } ?> Now I want to call the member functions of class X using its object via a Java file. How do I do this?

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  • In ActionScript3 runtime, is there a way to get a list of all static members from a Class

    - by ty
    Let's say we have following class public class PlayerEvent extends Event { public static const PLAYER_INIT:String = "playerInit"; public static const PLAYER_MOVE:String = "playerMove"; public static const PLAYER_USE_SKILL:String = "playerUseSkill"; public function PlayerEvent(type:String) { super(type, false, true); } } } In Flash Player runtime, is there a way I can get a list of all the static members of lass PlayerEvent. Something like: trace(PlayerEvent.staticMethods) // ["PLAYER_INIT", "PLAYER_MOVE", "PLAYER_USE_SKILL"]...

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  • Is it the best practice to extract an interface for every class?

    - by the_drow
    I have seen code where every class has an interface that it implements. Sometimes there is no common interface for them all. They are just there and they are used instead of concreate objects. They do not offer a generic interface for two classes and are specific to the domain of the problem that the class solves. Is there any reason to do that?

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  • How can I set an intent's class from a string value?

    - by twaxwei
    I am trying to set the class for an intent to the address listed in a string value, so that I can launch a given activity. The string is composed dynamically during runtime. Is there anyway to make something like the code below run: String target=com.test.activity1.class; Intent intent=new intent(); intent.setClass(this, target); Thanks

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  • How do I detect a text input's value and set a class with jQuery?

    - by Zander
    I would like to make sure if a textbox has any content at all, that jQuery can show it's parent (an <li class="hidden_dedication") element and set add a class of 'shown'. I'm pretty sure that it should be something like this, but cannot get it to work: if ($('li.hidden_dedication input').val() !== null) { $(this).parent().show().addClass('shown'); } I cannot figure it out.. any ideas? Many thanks

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  • How to see if type is instance of a class in Haskell?

    - by Raekye
    I'm probably doing this completely wrong (the unhaskell way); I'm just learning so please let me know if there's a better way to approach this. Context: I'm writing a bunch of tree structures. I want to reuse my prettyprint function for binary trees. Not all trees can use the generic Node/Branch data type though; different trees need different extra data. So to reuse the prettyprint function I thought of creating a class different trees would be instances of: class GenericBinaryTree a where is_leaf :: a -> Bool left :: a -> a node :: a -> b right :: a -> a This way they only have to implement methods to retrieve the left, right, and current node value, and prettyprint doesn't need to know about the internal structure. Then I get down to here: prettyprint_helper :: GenericBinaryTree a => a -> [String] prettyprint_helper tree | is_leaf tree = [] | otherwise = ("{" ++ (show (node tree)) ++ "}") : (prettyprint_subtree (left tree) (right tree)) where prettyprint_subtree left right = ((pad "+- " "| ") (prettyprint_helper right)) ++ ((pad "`- " " ") (prettyprint_helper left)) pad first rest = zipWith (++) (first : repeat rest) And I get the Ambiguous type variable 'a0' in the constraint: (Show a0) arising from a use of 'show' error for (show (node tree)) Here's an example of the most basic tree data type and instance definition (my other trees have other fields but they're irrelevant to the generic prettyprint function) data Tree a = Branch (Tree a) a (Tree a) | Leaf instance GenericBinaryTree (Tree a) where is_leaf Leaf = True is_leaf _ = False left (Branch left node right) = left right (Branch left node right) = right node (Branch left node right) = node I could have defined node :: a -> [String] and deal with the stringification in each instance/type of tree, but this feels neater. In terms of prettyprint, I only need a string representation, but if I add other generic binary tree functions later I may want the actual values. So how can I write this to work whether the node value is an instance of Show or not? Or what other way should I be approaching this problem? In an object oriented language I could easily check whether a class implements something, or if an object has a method. I can't use something like prettyprint :: Show a => a -> String Because it's not the tree that needs to be showable, it's the value inside the tree (returned by function node) that needs to be showable. I also tried changing node to Show b => a -> b without luck (and a bunch of other type class/preconditions/whatever/I don't even know what I'm doing anymore).

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  • Ruby metaclass madness

    - by t6d
    I'm stuck. I'm trying to dynamically define a class method and I can't wrap my head around the ruby metaclass model. Consider the following class: class Example def self.meta; (class << self; self; end); end def self.class_instance; self; end end Example.class_instance.class # => Class Example.meta.class # => Class Example.class_instance == Example # => true Example.class_instance == Example.meta # => false Obviously both methods return an instance of Class. But these two instances are not the same. They also have different ancestors: Example.meta.ancestors # => [Class, Module, Object, Kernel] Example.class_instance.ancestors # => [Example, Object, Kernel] Whats the point in making a difference between the metaclass and the class instance? I figured out, that I can send :define_method to the metaclass to dynamically define a method, but if I try to send it to the class instance it won't work. At least I could solve my problem, but I still want to understand why it is working this way.

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