aspose file tools
The moose likes Developer Certification (SCJD/OCMJD) and the fly likes Clarification on findByCriteria interface documentation (B&S ) Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Certification » Developer Certification (SCJD/OCMJD)
Bookmark "Clarification on findByCriteria interface documentation (B&S )" Watch "Clarification on findByCriteria interface documentation (B&S )" New topic
Author

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: 2676
    
    9

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


K. Tsang JavaRanch SCJP5 SCJD OCPJP7 OCPWCD5 OCPBCD5 OCPWSD5
 
jQuery in Action, 2nd edition
 
subject: Clarification on findByCriteria interface documentation (B&S )