CODEWITHSUNDEEP
c#reference
noob
noob

Reputation: 19

How do I reference a specific instance in c#?

How does object reference work in c# - I tried this, I am currently trying have an object being an reference to another object instance.

I need this in a class I am building

    public class TransactionalProducer 
    {
        private readonly IMessageBusProducer producer;

        public TransactionalProducer (IMessageBusProducer bus, bool hasTransactionInitialized)
        {
            producer = bus;
            if(hasTransactionInitialized)
            {
                producer.InitTransactions();
            }
            producer.BeginTransaction();
        }
  }

It looks like when I create a new TransactionalProducer the producer instance will be set as an new instance, where the values is taken from the function parameter bus, and not be reference to the one being parsed via the constructor.

How do I make sure that when an new TransactionalProducer object is being instantiated via the constructor public TransactionalProducer (IMessageBusProducer bus, bool hasTransactionInitialized) is the producer set as an object reference to bus, and not create a new IMessageBusProducer with the same parameters as function param bus

Upvotes: 0

Views: 784

Answers (1)

Serge
Serge

Reputation: 43860

String objects are immutable: they cannot be changed after they have been created. b = "let me rewrite this" created a new object in a hip and assign the address of this object to b. c is still having the addres of an old object.

If you want to bind two variables try to use references.

  string b = "This is changed";
    ref string c =  ref b;
    Console.WriteLine(c);
    b = "let me rewrite this";
    Console.WriteLine(c);
    b = "let me rewrite this again";
    Console.WriteLine(c);
    c = "let me reverse";
    Console.WriteLine(b);
    Console.WriteLine(c);

output

This is changed
let me rewrite this
let me rewrite this again
let me reverse
let me reverse

I don't understand what are trying to reach but try this, it could be working for you.

public TransactionalProducer (ref IMessageBusProducer bus, bool hasTransactionInitialized)

it will reach your inside busproducer, but I am not sure if it can cause a memory leak.

Upvotes: 2

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