> ...
> Is there some convenient way to compare Lucene Documents?
Not that I know of.
> I want to check if I should update a document based on whether field values
> have changed and whether fields have been added or removed.
>
> Is it as simple as:
>
> newDoc.equals(oldDoc)
No!
> I don't need to create the newDoc first, so I could compare by field. I am
> creating Fields like so:
>
> new Field("modified", modified, Field.Store.YES, Field.Index.NOT_ANALYZED)
>
> So, would it be better to:
> * check oldDoc's fields count against the to be created documents desired
> fields count, and
> * loop through the fields and compare values
Yes. Of course you won't be able to compare unstored fields.
> Is there a better way to create Fields and/or Documents for this type of
> thing?
Hash or CRC as Shashi suggested, but you'll still need compare old and
new hash values.
--
Ian.
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