Prevayler + BlockingQueue

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Hi,

I tried to use Prevayler on a Java BlockingQueue in a naive way, and it
didn't work the way I expected. I guess I see the reason why, but I'm still
not sure how should I use it.

Here is an example code I wrote it

https://gist.github.com/zeroflag/8c7333e96ab9b8c8a09fa0a3b08bb907

There are 2 commands. AddDocument adds a new document to the queue,
TakeDocument removes a document from the queue. Both operations blocks the
current thread, and probably this is the problem. I assume prevayler uses
locks on each transactions therefore taking document from an empty queue
blocks other threads from adding a new document.

My goal is to have a simple persistent (blocking) queue.

Is there any simple way to make this work, or what other options do I have?

thanks
Attila

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<div dir=3D"ltr">Hi,<div><br></div><div>I tried to use Prevayler on a Java =
BlockingQueue in a=C2=A0naive way, and it didn&#39;t work the way I expecte=
d. I guess I see the reason why, but I&#39;m still not sure how should I us=
e it.</div><div><br></div><div>Here is an example code I wrote it</div><div=
><br></div><div><a href=3D"https://gist.github.com/zeroflag/8c7333e96ab9b8c=
8a09fa0a3b08bb907">https://gist.github.com/zeroflag/8c7333e96ab9b8c8a09fa0a=
3b08bb907</a><br></div><div><br></div><div>There are 2 commands. AddDocumen=
t adds a new document to the queue, TakeDocument removes a document from th=
e queue. Both operations blocks the current thread, and probably this is th=
e problem. I assume prevayler uses locks on each transactions therefore tak=
ing document from an empty queue blocks other threads from adding a new doc=
ument.</div><div><br></div><div>My goal is to have a simple persistent (blo=
cking) queue.</div><div><br></div><div>Is there any simple way to make this=
 work, or what other options do I have?</div><div><br></div><div>thanks</di=
v><div>Attila</div><div><br></div><div><br></div></div>

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