Hi again,
I still don't have a solution for this problem, hence any help would be
greatly appreciated ...
Thank you,
Tudor
On Friday, 24 April 2015 16:05:11 UTC+10, Tudor Groza wrote:
>
>
> Hi,
>
> I'm trying to get my head around how to make Lucene work on top of fields
> that have server-side hooks altering their values - I'm using OrientDB
> 2.0.8.
> Here's my scenario:
>
> 1. I define a small schema that includes
> -- a VertexType (let's say Student)
> -- a String property on the Student vertex type - let's say 'name'
> -- a Lucene index on this 'name' property
>
> 2. I implement ODocumentHookAbstract as follows:
> -- in constructor I include: setIncludeClasses("Student")
> -- onRecordBeforeCreate -- I encrypt the 'name' property if it's not NULL
> -- onRecordBeforeUpdate -- I encrypt the 'name' property if it's not
> NULL (as in the case of the previous method); I return RESULT.RECORD_CHANGED
>
> -- onRecordBeforeRead -- I decrypt the 'name' property and
> return RESULT.RECORD_CHANGED
>
> 3. I seed the DB with some 'Students'
>
> 4. I try to run a query of the form: SELECT * FROM Student WHERE name
> LUCENE 'prefix*'
>
> Assuming that I have student named 'John', my expectation was for the
> query to return 'John' if the provided 'prefix' was 'Jo' - hence going
> through the encryption-decryption phase transparently. However, this does
> not happen - i.e., the query does not return John. On the other hand, if I
> query for the encrypted value of John, I am able to retrieve it.
>
> Could you please give me an idea of what am I doing wrong in this
> scenario? Basically, what I want is to hide the encryption step, but still
> to be able to query a full-text index as if encryption was not there.
>
> Thank you!
>
> Tudor
>
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