Hey All,

I have been beating myself up over this lately and am wondering if I am just doing something small incorrectly. I have a Visualforce Controller class that creates an instance of another Apex Class. While the page is loading, the methods in the instance run fine. However, when I try to print the state of the instance later, all of its variables have no value anymore, despite the fact that I have not cleared them. This results in me having to do a SOQL call again to repopulate them before running the methods again, which is costly and slow. Below is sample code of what I am doing:

public with sharing class myVisualForceCtrl {
	
	public ClassB myInstance;
	
	public myVisualForceCtrl() {
		myInstance = new ClassB();
		myInstance.printState();
	}
	
	public void showState() {
		myInstance.printState();
	}
}

public with sharing class ClassB {
	
	List<Account> testAccount;
	
	public ClassB() {
		testAccount = [SELECT Name FROM Account];
	}
	
	public void printState() {
		System.Debug('CURRENT INSTANCE STATE: ' + testAccount);
	}
}

During the initial page load, testAccount is correctly populated. However, I have a button on my visualForce page that runs the printState method again and does a reRender. This always shows the testAccount to be null.

Is this something I am doing incorrectly or is this the nature of Apex?

Thanks for any tips!