Multithreaded access to a Dictionary
I’ve search across the web and I get a bit confused about multithreading (lock, Monitor.Enter, volatile etc.) So, instead of asking the solution here, I’ve tried something “homemade” about …
Tag: thread-safety
Why do we need to use awaitTermination but not just shutdownNow()?
I am following the standard process that was recommended by oracle to shut down the executor services. here is the code that was recommended: void shutdownAndAwaitTermination(ExecutorService pool) { …
Is accessing two AtomicIntegers as one operation thread safe?
In Brian Goetz’s Java Concurrency in Practice, there is an example as follows: public class NumberRange { // INVARIANT: lower <= upper private final AtomicInteger lower = new AtomicInteger(0); ...
Is this static method thread safe or is synchronization needed
I have a utility class that has one static method to modify values of the input Array List. This static method is invoked by a caller. The caller is used to process web service requests. For each …
Java async MySQL queries
First of all, I don’t have much experience with thread safe programming. I have a MySQL class, and I want to use one instance in multiple threads to prevent blocking code in the main thread. I read …
Django: how to do get_or_create() in a threadsafe way?
In my Django app very often I need to do something similar to get_or_create(). E.g., User submits a tag. Need to see if that tag already is in the database. If not, create a new record for it. …
Thread-safe List property
I want an implementation of List
Is List.iterator() thread-safe?
In Java: Is List.iterator() thread-safe, i.e. does the returned iterator reflect the current state of the list at any time or just the state of the list at the time of its creation?
is TransformerFactoryImpl of Xalan is thread safe?
Is the class org.apache.xalan.processor.TransformerFactoryImpl thread safe? Or do I have to a keep local copy for each thread?
Java threading JavaDoc
I have written a method which should only be called on a particular thread. Is there a standard annotation or note which should be added to the method’s javadoc to denote this?