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is there any difference between "invoking a static method with class name" and "invoking a static method with an object" in java?
Internally, new ClassName().staticMethod(); is considered as ClassName.staticMethod(). So there is no difference. It just causes confusion. Consider an example public class StaticDemo { static int staticVar = 10; public static void main(String [] args){ System.out.println(new StaticDemo().staticVar); System.out.println(StaticDemo.staticVar); } } This outputs 10 10 ` even if you write new StaticDemo().staticVar, it will be considered as StaticDemo.staticVar. So there is no difference at all and always use the Class notation to avoid confusion.

Categories : Java

Many different Invoking methods?
Action was added in the .NET 3.5 framework as a general delegate that takes no arguments and returns nothing, while MethodInvoker has existed since 1.1, so you'll typically only see older code using MethodInvoker. The two delegate types have the same signature. BeginInvoke() actually takes a Delegate object, so any delegate that takes no arguments can be used with that overload. (There is a (Delegate, object[]) overload for delegates that need arguments, though I'd be inclined to use a no-argument closure instead.) Because Delegate is a general type, you must specify in some way what type of delegate you are providing because the compiler cannot otherwise infer it (see below). This is shorter than the new Action alternative, but only by a few characters and it isn't really any more or

Categories : C#

Invoking UDF in Teradata
Error 5589 is returned when the parser couldn't match the literals to the function parameters: A character literal ('M') is a VARCHAR while "func" is defined as CHAR. There are two possible solutions: add an explicit typecast when you call the function select "twm_source"."TD_FN_CALC"('M' (CHAR(1)),3,8); change the definition from CHAR to VARCHAR. Works with both CHAR and VARCHAR input :-) "func" VARCHAR(1) CHARACTER SET LATIN, Dieter

Categories : SQL

self-invoking constructor in JS
things to know one: the code between { and } doesnt execute in a if statement that returns false. two: return exit's a function. var iAmRight = true; function checkAwesome(){ if ( !iAmRight ){ return "i never arrived here"; return "even if i wasent awesome i wouldnt arrive here"; } //so therefore you can return "i am awesome"; } checkAwesome();

Categories : Javascript

editing a dataframe in R invoking vi
I am running the same setup: OSX and R 3.0.1 and don't have an issue -- perhaps you're missing the saving step? data(Orange) test <- vi(Orange) Then i edit the first data point, and hit the red button -- which opens a dialog box to save. You can also select save by hitting Command-S or selecting it from the menu. This will not alter Orange, but it will pass the altered Orange to test.

Categories : R

Invoking Listbox in threads
Listbox can be accessed only by the UI thread and not the worker thread. var sync = SynchronizatoinContext.Current; sync.Post(delegate { // Perform UI related changes here }, null) //as the worker thread cannot access the UI thread resources

Categories : C#

ConcurrentModificationException when invoking putAll
The issue is that HashBasedTable is internally implemented as a Map<Double, Map<Double, Integer>>, and that the implementation of user_to_user.column(user) is iterating over the rows at the same time you're modifying the row associated with user. One workable alternative would be to copy user_to_user.column(user) into a separate Map before putting it into the row.

Categories : Java

Invoking DOM Ready manually
No, not for this event. But you can do this: $(document).on("mycustomevent", function() { alert("Alohaa!"); }); And then, whenever needed: $(document).trigger("mycustomevent");

Categories : Javascript

invoking an ant command via make
Are you saying you're trying to run make with -D options? That won't work because make doesn't support -D. If you're trying to pass some flags through the make command line to be used on the ant invocation, then you should do something like this: when you run make set a variable on the make command line: make ANTFLAGS='-DFOO -DBAR -DBAZ' Then inside your makefile, when you run ant, pass that variable: runant: ant $(ANTFLAGS) ... If that's not what you're trying to do please clarify your question. For example, you say it's not working and no desirable result, but you don't give any details about what errors or incorrect behavior you see. Such error messages would go a long way towards clarifying exactly what's going on.

Categories : Java

Invoking begin and end via using-directive?
the documentation of swap specifies that the idiom you refer to is common practice in the stl library Many components of the standard library (within std) call swap in an unqualified manner to allow custom overloads for non-fundamental types to be called instead of this generic version: Custom overloads of swap declared in the same namespace as the type for which they are provided get selected through argument-dependent lookup over this generic version. No such thing is present in the documentation for begin and end. For this reason, you can definitely use the using std::begin; using std::end; some_algorithm(begin(some_container), end(some_container)); calling convention, but you must be aware that this is a convention which doesn't apply to e.g. standard algorithms but

Categories : C++

C# - Invoking an application periodically
You can add a script (or executable) to the Windows task scheduler. This is available in Control Panel and is labeled either "Task Scheduler" or "Scheduled Tasks" depending on what version of Windows you're running. Some things are better implemented in services, but the task scheduler suffices for anything that doesn't have to run super-frequently. For Win7 (or Server 2008), see http://windows.microsoft.com/en-us/windows7/schedule-a-task Also, see this answer for more information. Update If you only need to call a web service, and don't care much about the result, you can use curl or wget via the task scheduler.

Categories : C#

Invoking a webserice using ajax
Decorate your web service class with [System.Web.Script.Services.ScriptService], like this: [System.Web.Script.Services.ScriptService] public class WebService1 : System.Web.Services.WebService This allows your web service to be called by your JavaScript. Also, change your call to the web service to remove the CountryCodes prefix, like this: var onClick = function () { WebService1.countryCode($get("TextBox1"), onSucess, onFailed); }

Categories : C#

Invoking more than 2 RecursiveActionTasks in compute()
There is a fine example of this in the test Classes supplied with jsr166, MatrixMultiply.java You can find it here

Categories : Java

Invoking/Creating Delegate
They are the same - the second is Syntactic Sugar for the first. To confirm I looked at the IL generated for both, and they are identical: IL_0001: ldarg.0 IL_0002: ldftn UserQuery.Method IL_0008: newobj UserQuery+MrDel..ctor IL_000D: stloc.0 // MyDelegate Method: IL_0000: nop IL_0001: ret MrDel.Invoke: MrDel.BeginInvoke: MrDel.EndInvoke: MrDel..ctor:

Categories : C#

Invoking program through java jar used in pig
After several trials I got the answer. Firstly copy the files into tmp folder of hdfs for e.g. hadoop fs -put YourModule /tmp/ Then in the pig script add statements as follows: SET mapred.cache.files /tmp/YourModule#ModuleName; SET mapred.create.symlink yes; Then in jar file where you wan to access files inside those folder you can do by using path: ModuleName/filename thats it. It works smoothly in hadoop similar to Local mode.

Categories : Hadoop

Invoking generic type
The first one uses a reference of Pair. With this you can point to any implementation of Pair interface - OrderedPair, SortedPair, LongPair etc. But with the second reference, you can only point to an object of OrderedPair

Categories : Java

invoking an action helper
Did you specify path for the custom Action Helpers ? You can do this in your application.ini, add following line: resources.frontController.actionHelperPaths.Custom_Controller_Action_Helper_ = "Custom/Controller/Action/Helper" After you specified path for your custom helpers, you need to initialize them for the later use. This can be done in Bootstrap: protected function _initHelpers() { Zend_Controller_Action_HelperBroker::addHelper(new Custom_Controller_Action_H‌​elper_LinkTo()); } If you want to use helper as a method of the helper broker, for instance: $this->_helper->LinkTo(); your custom helper should implement direct() method.

Categories : PHP

Invoking powershell cmdlets from C#
Length, -gt and 10000 are not parameters to Where-Object. There is only one parameter, FilterScript at position 0, with a value of type ScriptBlock which contains an expression. PowerShell ps = PowerShell.Create(); ps.AddCommand("Get-ChildItem"); ps.AddCommand("where-object"); ScriptBlock filter = ScriptBlock.Create("$_.Length -gt 10000") ps.AddParameter("FilterScript", filter) If you have more complex statements that you need to decompose, consider using the tokenizer (available in v2 or later) to understand the structure better: # use single quotes to allow $_ inside string PS> $script = 'Get-ChildItem | where-object -filter {$_.Length -gt 1000000 }' PS> $parser = [System.Management.Automation.PSParser] PS> $parser::Tokenize($script, [ref]$null) | select content, type |

Categories : C#

invoking superclass constructor
1) no this has nothing to do with function handles, this is the syntax used to call the superclass constructor 2) you could try it and see for yourself. Here is an example: A.m classdef A < handle properties a = 1 end methods function obj = A() disp('A ctor') end end end B.m classdef B < A properties b = 2 end methods function obj = B() obj = obj@A(); %# correct way %#obj = A(); %# wrong way disp('B ctor') end end end With the correct syntax, we get: >> b = B() A ctor B ctor b = B with properties: b: 2 a: 1 If you use the commented line instead of the first one, you get the following error: >> clear classes

Categories : Matlab

Invoking a remote Camel through RMI
There is an RMI example in the examples of the Apache Camel distribution. You can view the source code of this example online at: https://git-wip-us.apache.org/repos/asf?p=camel.git;a=tree;f=examples/camel-example-osgi-rmi;h=c49b9a7727eb4fc8852343f2bef7d2ae71849adb;hb=HEAD If you refer horrible to this page -> camel.apache.org/rmi then I fixed 2 dead links.

Categories : Java

issue with self-invoking function in js
You need to use console.log(person.getName()); because name is a closure variable which cannot be accessed outside the scope of the anonymous function. The variable person holds the value returned from the iife which is an object with properties getName and setName, so those are the only properties you can access from person reference. Demo: Fiddle

Categories : Javascript

methods invoking, code understanding
You know when we invoking a method, compile time there check the method in the class denoted by the refference type and in the run time it creates a instance of class denoted by the object type and check for the method there. here the all the 3 objects are of ExtC class.ExtC class have actually 5 instance methods.process1(char ch) ,process2(char ch) ,process3(char ch) ,process1(int n) ,process4(int n): 3 from its super class C.The process2(char ch) has got overriden here. consider the object1,refference type & object type both are of ExtC.So there we can invoke all those 5 methods. consider the object2,there we can invoke only the methods ,included in both classes i.e.2 classes denoted by refference type,'c' & object type ,'ExtC'.so the method process1(int n) & process4(i

Categories : Java

Tutorial needed on invoking unmanaged DLL from C#.NET
This isn't quite a tutorial but it's got a lot of good information on using P/Invoke Calling Win32 DLLs in C# with P/Invoke It'll give you an idea of the terminology, the basic concepts, how to use DllImport and should be enough to get you going. There's a tutorial on MSDN: Platform Invoke Tutorial. But it's pretty short and to be honest the one I've mentioned above is a much better source of information, but there's a lot of it on there. Also useful is the PInvoke Signature Toolkit, described here . And downloadable here. It lets you paste in an unmanaged method signature, or struct definition and it'll give you the .NET P/Invoke equivalent. It's not 100% perfect but it gets you going much quicker than trying to figure everything out yourself. With regards to Marshalling specificall

Categories : Misc

Invoking powershell from IIS failed on second attempt
OK so the problem is actually a bug (or feature) in powershell library. The object just won't die, even if you force GC. That is Microsoft answer after hours of windbg with Microsoft's consultant. You can pass around this problem with open a new process for each runspace, and can pass the user using win32api.

Categories : C#

Javascript invoking function via anchor
$(document).ready(function(){ $('.like').click(function(e){ alert($(this)); $(this).removeClass('like').addClass('unlike', function(){ //action }).text('unlike'); }) }); Put it in a document ready to ensure that there are no timing issues. The .click handler can't be attached until the element is on the page. You can however use .on if you need to attach the handler before the element is present $("#someParent").on("click",".like",function(){alert(''test)});

Categories : Javascript

Invoking member of an object from another one by using `std::function`
Looking at your code, it looks like you would be better off storing std::function<double(double, int)>, and then use std::bind to bind the objects to the member functions. template <typename F> void AddSubscriber( const Callable & obj, F subscriber) { Subscribers.push_back(std::bind(subscriber, obj, _1, _2)); } Or just de-couple Callable from Caller completely, by passing something convertible to std::function<double(double, int)> directly: class Caller { public: template <typename F> void AddSubscriber(F&& subscriber) { subscribers.emplace_back(std::forward<F>(subscriber)); } void CallSubscribers() { for (const auto& subscriber : subscribers) { subscriber(1.0, 2); } }

Categories : C++

Invoking servlet from Java GUI application?
Yes, you could call a servlet which in turn calls an EJB. But you can call an EJB directly from a stand-alone application as well. If your servlet returns HTML markup (content type "text/html" - for human beings), you will have to parse it (requires effort) to get the same result. Every time the markup changes, your client has to be changed as well. Even if there is a firewall in between (= direct RMI is not possible), you can use "RMI over http(s)", and there is a HTTP based naming service as well (JBoss offers this functionality). On the other hand, if you mean a servlet which implements a web service which returns XML or JSON, it's a valid approach, especially if clients from other languages (C++ for example) are involved. Another advantage is that you can read the result using a bro

Categories : Web Services

Powershell module and invoking files
. is the current working directory, not the directory in which the module resides. The latter can be determined via the MyInvocation variable. Change your function to this: function MyFunction { $Invocation = (Get-Variable MyInvocation -Scope 1).Value $dir = Split-Path $Invocation.MyCommand.Path $cmd = Join-Path $dir "myBatch.bat" & $cmd $param1 $param2 }

Categories : Shell

Invoking private method issue
The error is inside the count_and_sort method, as the error message says: ... in 'count_and_sort': private method 'count_and_sort' called for ... The wrong lines are: left = left.count_and_sort right = right.count_and_sort Private methods in Ruby can't be called with an explicit receiver, they must be called implicitly on self. Thus you can either make the count_and_sort method protected or call it using send on left and right. In this case I would suggest the former.

Categories : Ruby

When is AllowVoidAsyncOperations set, when invoking async ActionResults?
This particular exception is thrown by ASP.NET if you try to perform an asynchronous operation at a point not permitted in the request lifecycle (or entirely outside of a request context). You shouldn't be seeing this in ASP.NET MVC. There are two things to check: Ensure you are running on .NET 4.5. I suspect you already are, or else you wouldn't see that message at all. Ensure you have UseTaskFriendlySynchronizationContext set to true or have httpRuntime.targetFramework set to 4.5. Update: Upon reflection, there are another two conditions that could cause this in ASP.NET MVC: Ensure you are not calling any async void methods. Ensure you are not using EAP components. For example: HttpClient is TAP, so it would work. HttpWebRequest is APM, so a TAP wrapper around it would work. WebC

Categories : C#

issue with immediately-invoking-functions in js
You're confusing the browser (well, it's technically correct according to the spec). Try another trick to make it treat the function as an expression: (function add_them(a,b) { return a+b;})(9,4) // 13 Or simply: console.log((function add_them(a,b) { return a+b;})(9,4)) // logs 13 If you're just trying to fixate the parameters you can .bind the function to values (which is what it seems to me you're trying to do): var add_them = (function(a,b) { return a+b;}).bind(null, 9,4) console.log(add_them());// logs 13

Categories : Javascript

Invoking base methods in classes
You create an instance of Crossbow with c = Crossbow(initial_load_state, initial_reloads), not c = Crossbow(Weapon). (Also, your superclass constructor call is missing a damage argument.)

Categories : Python

Invoking Safari on iOS without opening a new website
When you open the app with your custom url scheme, pass the actual page url as an argument. mycustomUrlScheme://mydomain.com?objectid=1234&callback_url=encoded_url In your app, handle the url for the content info and keep the page url to open it afterwards. It will make safari open a new tab. But that should be a good start.

Categories : IOS

When items are redrawn after invoking `invalidateViews()`
InvalidateViews just causes the listView to redraw itself. It will not call getView to do so, it just resets the current ones on screen- basically it just does for(View child: getChildren()){ child.invalidate(); } If you want to update the list, call notifyDataSetChanged on the adaptor.

Categories : Java

Invoking app in iOS after every phone call ends
No, its not possible to fetch Call/SMS/Email logs in iOS 5 and later. You can do this in jailbroke any ways if you are trying to achieve this in iOS 4, I have a useful information HERE

Categories : Iphone

Invoking Method of Presenter on Activation
If you are using a Smart Part as your View you should be able to accomplish this using the IWorkspace.SmartPartActivated event. This is how I have it setup in my project. I apologize, my code is all in C# but you should be able to apply it in VB relatively easily. The WorkItemController class has the Activate method setup like this ISmartPartView _smartPartView public void Activate() { IWorkspace contentWorkspace = this.WorkItem.Workspaces[WorkspaceNames.ShellContentWorkspace]; contentWorkspace.Activate(_smartPartView); WorkItem.Activate(); } In the ISmartPartView Presenter class you should be able to create a handler for the SmartPartActivated event like this: IWorkspace contentWorkspace = this.WorkItem.Workspaces[WorkspaceNames.ShellContentWorkspace]; contentWorkspace.Sm

Categories : Vb.Net

Command not executing when invoking windows cmd from vb.net app
Change your code to Dim command As String = "/C net use x: \webtest01c$ /USER:daylight obbery TakeItNGo" Dim application As New ProcessStartInfo("cmd.exe", command) Dim process = process.Start(application) process.WaitForExit() process.Close() The ProcessStartInfo class has a constructor that takes two arguments, the program file to start and the arguments to pass to this process. However it is of paramount importance with CMD.exe to pass the flag /C on the command line otherwise the arguments will be ignored and the cmd.exe exits without looking at the arguments More info on CMD flags Of course all of this is valid if you are able to connect to the network resource with the credentials given. I would verify this as first step trying the same command on a normally opened command sh

Categories : Dotnet

Invoking a C executable with two parameters from a Script
There could be many reasons behind this. I mean what myExecutable program does. Does it print something on the standard output(terminal)or this program is written to do some background job. In any case we can check the status of the last command executed under shell. shell store the information in the special variable $?. If the last command was successful it would return 0 otherwise it would return >0. If possible, please share the output of the following command from your machine. $/usr/bin/myExecutable param1 param2 & $echo $?

Categories : C

Function declaration instead of invoking constructor in C++
This is one of the many cases where the parser thinks that a variable declaration is a function declaration, try writing it as: B b = A() ; // Now the compiler doesn't think that it's a function declaration

Categories : C++

Invoking asynchronous method from servlet
Question 1: The Servlet Container keeps a pool of threads that it uses to handle requests. It also keeps a single instance of your servlet class. When a request comes in, it dispatches one of those threads which eventually hits the corresponding doXXX method. Threads aren't really queued. They work in parallel. So requests that come in at the same time are being handled parallelly (to a certain degree, read here. Question 2: Say you've configured your servlet container to have a pool of 10 threads to handle requests. But at some point you get 15 requests. Then yes, 5 requests will be queued awaiting an available thread. In that case, you can use Servlet 3.0 async support (read1, read2) to have the request handled in a separate thread (that the container also manages). When your process

Categories : Java



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