Solved

Hibernate fetch layer configuration

Posted on 2009-07-09
3
315 Views
Last Modified: 2012-06-22
HI: In hibernate, If I have a class A which has one to one mapping (bi direction) to Class B. And Class B has one to one mapping (bi direction) to Class C. And Class C has bidirection to Class D ...

Now when I fetch Class A's object. Hibernate will fetch its assocation with Class B. And Class B will fetch its association Class C. ....

My question is to tune this layer parameter. So when I load Class A's object, I donot need Class C object is also loaded. Where is hibnerate configuration file for it?  
0
Comment
Question by:JianJunShen
  • 2
3 Comments
 
LVL 17

Assisted Solution

by:Dejan Pažin
Dejan Pažin earned 500 total points
ID: 24813123

You have to set lazy loading on those properties. If you are using annotations (I recommend it), this is what you do:


@OneToOne(fetch = FetchType.LAZY)

or

@ManyToOne(fetch = FetchType.LAZY)

0
 
LVL 17

Accepted Solution

by:
Dejan Pažin earned 500 total points
ID: 24813208
0
 
LVL 40

Expert Comment

by:mrjoltcola
ID: 24813469
Also google: hibernate proxy object

for some good reading. A proxy is what is created to represent classes in lazy loading, so you should understand them.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
eclipse apache tomcat admin console 52 147
use lov values 2 71
sql import cannot be resolved jsp 3 72
program arguments vs VM arguments 4 25
After being asked a question last year, I went into one of my moods where I did some research and code just for the fun and learning of it all.  Subsequently, from this journey, I put together this article on "Range Searching Using Visual Basic.NET …
By the end of 1980s, object oriented programming using languages like C++, Simula69 and ObjectPascal gained momentum. It looked like programmers finally found the perfect language. C++ successfully combined the object oriented principles of Simula w…
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
The viewer will learn how to implement Singleton Design Pattern in Java.

679 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question