synchronizing method calls

[carpeliam]

I'm writing a class for interacting with a database. I want to make sure that a call to select() can not be made while a call to delete() is being made (ie, no two methods of the class should be called at once by seperate processes.) How do I do that? Liam Morley
lmorley@wpi.edu
"light the deep, and bring silence to the world.
light the world, and bring depth to the silence."

 

[ChrisCarroll]

Hi Liam,

I think you should find that it's as simple as putting the keyword 'synchronized' in front of the methods names - what you are trying to achieve doesn't require anything more sophisticated.

That will mean that anything calling the method will get the object lock, and only release it when the method exits.

Chris

 

[LittleWing]

synchronized methods only prevent more than one thread from accessing the same method at the same time, not another method. you will have to define the class a synchronized, not 100% sure about that, or set up a flag to prevent access to other methods

 

[LittleWing]

sorry, Chris is correct. once one synchronized method is called with in an object, all other synchronized methods are also locked.