keyword search with the astrogrid java librairies

[Alexandre RICHARD]

Hi,

Sorry to post on the registry mailing lists a question specific to the 
Astrogrid Java client libraries but I have two questions I am 
struggling to get answers for, and I figured someone on the registry 
list might just know these answers.

One of the use-cases I have been exploring recently with the ontology 
of astronomical object types is a small webapp that uses the ontology 
structure could find resources in a registry from a keyword or 
expression (with hopefully interesting results!)

Finding such resources includes querying a registry. Following a 
suggestion from Brice Gassmann who has used the
astrogrid  registry java libraries to query the registry, I have 
started to use them for my own queries.

Among the good surprises for me, I have noticed that besides Xqueries 
and ADQL, there is in
org.astrogrid.registry.client.query.QueryRegistry a function that can 
be used to do a
keywordSearch, which is very interesting for me, but I have a few quick 
questions which I hope someone will be able to answer.

- After looking at the old javadoc of the library, I have been able to 
understand how keywordSearch(String) and keywordSearch(String, boolean) 
are to be used but I must confess I have no idea what the more recent

keywordSearch(String, int, boolean)
keywordSearch(String, boolean, int, boolean)
keywordSearch(String, int, int, boolean)
keywordSearch(String, boolean, int, int, boolean)

are to be used. Obviously the first String is the space-separated 
string of the keywords to search, but the other parameters I do not 
know.


- Also, I was wondering how that keyword search was performed. Is it a plain
text search in the subject or author or description fields? or is it 
something different?


Alexandre Richard
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