Lazy loading of objects in Java

[Kumar Bisk]

Does this book cover lazy loading of objects?
Lets see the below scenario
class A{
private B b;
public A(B b){
this.b = b;
}
public B getB(){
return this.b;
}
}

The same thing with Class B with respect to Class C.
So As the linkage of classes are big and it would be resource intensive to initialize all classes. Is it possible to load only skeleton of instances without detail initialization. And the momemnt I sa getB() then only Class B should be initialized fully.

[Jan Groth]

hi ranjan,

which book are you refering to?

concerning lazy load - a pretty advanced topic in my eyes ;-) - you might want to consider the proxy pattern.

in this pattern the code will be developed against an interface, which fakes to be the real, heavy-weight object. in reality you work with a much smaller proxy object, which only instantiates the needed, light-weight code.

some case-special business logic to develop, of course.

hope it helps,
jan

[ankur rathi]

In my view, Lazy Loading is a synonym for Run Time Binding in Java. And Run Time Binding is, in case of overridding, JVM always makes decision (at run time), which method will get called on the bases of type of object.

Hope it is right.

[Kumar Bisk]

I thought this was the forum to review "The book is "Java: A Beginner's Guide, Third Edition (Beginner's Guide)" by Herbert Schildt."

[Kumar Bisk]

And Run Time Binding is, in case of overridding

This has nothing to do with overriding.

[Ernest Friedman-Hill]

Originally posted by Ranjan Baisak:
I thought this was the forum to review "The book is "Java: A Beginner's Guide, Third Edition (Beginner's Guide)" by Herbert Schildt."

You're about 4 months late for that promotion, which was at the beginning of April. But we've got another promotion this week -- Jacquie Barker is talking about the new edition of her book "Beginning Java Objects: From Concepts To Code."