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Corejava Question ??

 
Greenhorn
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How can i lock an Object ?
 
Ranch Hand
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Hi

Can you clarfiy what is the exact funtionality that you require from this lock? Is it lock in case the object is being used by someone else(in case of a multithreaded environment), or is it that the object is not available/ visible to others?
 
Greenhorn
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hi sirish,

Basically locking an object comes during synchronization areas.

synchronization means only one can access anything.

For example, say myself and u have the same debit card ie having same number on credit card ( we have two copies of credit card with same number).

Suppose i insert card into ATM, at that particular point of time, u are not allowed to access the database (i,e you cant touch data unless one card has finished its transcation) means when one transaction is accessing data, ( indirectly object is locked), u cant allow other transaction to access data.

Have a nice day.
Good Guy
 
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