[infinispan-dev] JCache implementation documentation

[cotton-ben]

Hi Galder,

Thanks for your off-line email exchange confirming that community
contributed tests of 5.3.0A's JSR-107 transactions option capability (and
compliance) are welcome.

Here is what we would like to contribute initially.

1.  A test that 5.3.0.A can (both optimistically and pessimistically)
accommodate a DIRTY_READ intolerant use-case via the JSR-107 API.  Attached
is sample JSR-107 PSEUDO code to drive this test (PESSIMISTIC policy).

2.  A test that 5.3.0.A can accommodate a REPEATABLE_READ mandatory 
use-case via the JSR-107 API.  (TODO=code).

3.  A test that 5.3.0.A can accommodate a PHANTOM_READ intolerant use-case
via the JSR-107 API.  (TODO=note it is KNOWN that 5.3.0.A cannot yet
accommodate this use case as TotalOrder on Infinispan does not yet provide
isolation=SERIALIZABLE implementation.  However, to be compliant with the
JSR-107 Transactions option, an implementation must provide all isolation
levels)

Please consider taking a look at the attached plan for Test #1.

It is very simple.  A "Savings Account" is cached in Infinispan 5.3.0.A.    
Two  transactional threads simultaneously operate (access/mutate) on the
"Savings Account".  Transactional Thread #2 indicates via the JSR-107 API
that is is "DIRTY_READ" intolerant (by specifying isolation=READ_COMMITTED). 
It expects a pessimistic locking policy to be used by 5.3.0.A (i.e. to block
@t=2 on its READ invoke).   Therefore a challenge to 5.3.0.A's capability is
to demonstrate the Thread 2 blocks @t=2.  This test passes if Thread 2
blocks @t=2)

If you confirm this test is helpful, we will then provide a
policy=OPTIMISTIC test for #1.  Later, at the appropriate time,  we would
like to produce explicit tests for #2 and #3.

Infinispan-5.3.0.A1=JSR-107_TRANSACTIONS_OPTION=DIRTY_READ_INTOLERANCE_TEST.pdf
<http://infinispan-developer-list.980875.n3.nabble.com/file/n4026915/Infinispan-5.3.0.A1%3DJSR-107_TRANSACTIONS_OPTION%3DDIRTY_READ_INTOLERANCE_TEST.pdf>  

Thanks,
Ben




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