API usage: unslice

[Justin]

What is the purpose of Paged.unslice()? there is no javadoc. From the
source code it would appear that it releases region obtained from
slice(), but the contract is entirely unclear -- must I call unslice()
everytime I call slice()?

[Justin]

From the code in the implementation it seems like unslice() completes/
inverts slice() when used for read:

bb = paged.slice(SliceType.READ);
try {
bb.read();
}
finally {
paged.unslice(bb);
}

Does write() complete / invert slice when used with SliceType.WRITE?

[Hiram Chirino]

Correct. Just use it every time you slice.

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Regards,
Hiram

Blog: http://hiramchirino.com

Open Source SOA
http://fusesource.com/

[Hiram Chirino]

no.. just use unslice every time you slice.

If you slice type is WRITE you can update the byte buffer given. If
your slice type is READ don't update it :)

In some cases (like if your using a transaction page file) the write
is actually done to shadow copy of the original. Once the transaction
completes, the shadow gets copied over the original.

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