uk.ac.starlink.table
Interface ValueScheme


public interface ValueScheme

Contains information about how to interpret a set of related values, for instance cells in a column.


Method Summary
 DomainMapper getDomainMapper(ValueDomain domain)
          Returns an object which can translate object values in this scheme to a given domain.
 

Method Detail

getDomainMapper

DomainMapper getDomainMapper(ValueDomain domain)
Returns an object which can translate object values in this scheme to a given domain. If nothing is known about how to translate to that domain, null should be returned. A null return does not indicate that the value cannot be used for the target domain - a trivial use of the numeric values may still be appropriate. A non-null return however indicates some confidence that the values may be used in the target domain, and that some alternative conversion is unlikely.

Parameters:
domain - target value domain
Returns:
mapper for mapping to the given domain, or null


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