I have the following scenario.
I have two tables. One stores multi values that are counters for transactions. Through a java application the first table value is read, incremented and written to the second table, as well as the new value being written back to the first table. Obviously there is potential for this to go wrong as it's a multiple user system.
My solution, in Java, to the issue is to provide Locks that have to, well should, be aquired before any action can be taken on either table. These Locks, ReentrantLocks, are static and there is one for each column in Table 1 as the values are completely independent of each other.
Is this a recommended approached?
Cheers.
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Link to original article：https://stackoverflow.com/questions/12790593/using-java-locks-for-database-concurrency