Represents a cql prefix mapping
use CQL::Prefix;
Represents a \s-1CQL\s0 prefix mapping from short name to long identifier.
You need to pass in the name and identifier parameters.
The name is the short name of the prefix mapping. That is, the prefix itself, such as dc, as it might be used in a qualifier like dc.title.
The identifier is the name of the prefix mapping. That is, typically, a \s-1URI\s0 permanently allocated to a specific qualifier set, such as http://zthes.z3950.org/cql/1.0.
my $prefix = CQL::Prefix->new( name => 'dc', identifier => 'http://zthes.z3950.org/cql/1.0' );