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Clarification on findByCriteria interface documentation (B&S )

b weiss
Greenhorn

Joined: Apr 14, 2009
Posts: 7


I was wondering if I could get some clarification about what this exactly means. I get that the method is supposed to return an array of which record numbers contain the information the user searched by. However:
Field n in the database file is described by criteria[n]


does this mean that the "column" the search is supposed to go through is the last element in the array?

Such that:
A null value in criteria[n] matches any field value.
means that there's no specific "column" to search through and everything should be searched.

and:
A non-null value in criteria[n] matches any field value that begins with criteria[n]
means that if criteria[n] == Name and a String in the criteria array happens to be "Fred" then any Strings in the Name "column" that contain "Fred" are valid records to return.


I have already finished my findByCriteria method and it works up to what I think the this documentation says but I just wanted to know if my train of thought for it was correct.

Thanks!




K. Tsang
Bartender

Joined: Sep 13, 2007
Posts: 2615
    
    9

You may want to check this thread about searching for URLyBird, but the idea is the same.


K. Tsang JavaRanch SCJP5 SCJD/OCM-JD OCPJP7 OCPWCD5 OCPBCD5
 
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subject: Clarification on findByCriteria interface documentation (B&S )