SQL::Statement::TermFactory - Factory for SQL::Statement::Term instances
my $termFactory = SQL::Statement::TermFactory->new($stmt);
my $whereTerms = $termFactory->buildCondition( $stmt->{where_clause} );
my $col = $termFactory->buildCondition( $stmt->{col_obj}->{$name}->{content} );
This package implements a factory to create type and operation based terms.
Those terms are used to access data from the table(s) - either when evaluating
the where clause or returning column data.
The concept of a factory can be studied in Design Patterns by the Gang of
Four. The concept of using polymorphism instead of conditions is suggested by
Martin Fowler in his book Refactoring.
Builds a condition object from a given (part of a) where clause. This method
calls itself recursively for predicates.
Copyright (c) 2001,2005 by Jeff Zucker: jzuckerATcpan.org
Copyright (c) 2009-2020 by Jens Rehsack: rehsackATcpan.org
All rights reserved.
You may distribute this module under the terms of either the GNU
General Public License or the Artistic License, as specified in
the Perl README file.
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