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Tag: instance

Generate a WebService client code instance using the wsimport command

in the bin folder of the JDK , There is a wsimport.exe tool that can generate corresponding class files based on wsdl files, copy these class files that exist locally to the project that needs to b

October 7, 2021By Simo WebService build, client, code, Command, instance, use, WebService, wsimportLeave a Comment

Ruby – alias of instance variables?

Is there a way to create an alias for an instance variable (not talking about the db alias attribute) instead of assigning it to another instance var?

For example:

@imavar
alias_attribu

October 6, 2021By Simo Ruby alias, instance, ruby, variableLeave a Comment

Lua – Corona SDK – Calling an instance or class method from EventListener

I have a Foo class (well, a pseudo-class) set as follows:

–in foo.lua
Foo = {}
–constructor
function Foo:new(x, y)
–the new instance
local foo = display. newImage(“foo.png”)
– set some

October 5, 2021By Simo Lua call, class, Corona, EventListener, instance, lua, method, SDKLeave a Comment

Array – Create an instance from a class array

My class definition is:

TAnimal = class(TInterfacedObject)
public
constructor Create; overload;
constructor Create(param: string); overload;
end;
IAnimal = interface
procedure DoSomething;

October 5, 2021By Simo Delphi array, class, creation, instanceLeave a Comment

C # – How to get an instance of BackgroundWorker from the currently executed method?

I’m using a background worker program that can have n instances. The problem is that the DoWork method (with the’sender’ parameter, that is, BackgroundWorker) calls other codes that generate the ca

October 4, 2021By Simo C# C #, Current, execute, Get BackgroundWorker, How, instance, method, middleLeave a Comment

Performance test – instance explains VU, RPS, RT formula conversion

Overview I saw an article explaining VU, RPS, RT today, and there is a formula in the middle as shown below

Concurrent number = RPS * Response time

So I did several experiments locally

October 2, 2021By Simo Performance conversion, explanation, Formula, instance, performance, RPS, RT, test, VULeave a Comment

Performance – Open multiple SQLite database instances on different threads (QT)

Is there any problem with using multiple open connections from different threads at the same time?

From what I have seen it is thread-safe by default, but, could this hurt performance rather

October 2, 2021By Simo Performance at the same time, DB, different thread, instance, multiple SQLITE, open, performance, QTLeave a Comment

How to cluster embedded Cassandra instances?

I wrote a small application to start an embedded instance of Cassandra 1.2.

I am trying to run 3 instances of this application in Create a cluster of 3 embedded instances locally. Everyone lo

October 1, 2021By Simo Load Balance Cassandra, cluster, Embed, How to, instanceLeave a Comment

“Creation” in UML and “Instantiate” dependency

According to the UML specification, we can express the dependency between two classes through <>. Or <> stereotype.

Do you know the difference between those stereotypes?

It is written i

September 30, 2021By Simo Design Pattern chemical, Created, dependency, instance, Medium, relationship, UMLLeave a Comment

Amazon-Web-Services – What happens when we promote a read-only copy to separate the RDS instance?

I tried to promote the read replica to a separate RDS instance. It took nearly 10 minutes during this period. As far as I know, it should break the replication process and synchronize the time lag.

September 28, 2021By Simo Silicon Valley Amazon, Copy, instance, one, propaganda, rds, read-only, season, separation, Services, us, WEB, what happenedLeave a Comment

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