1SQL::Statement::TermFacUtsoerry(C3o)ntributed Perl DocumSeQnLt:a:tSitoantement::TermFactory(3)
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6 SQL::Statement::TermFactory - Factory for SQL::Statement::Term
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10 my $termFactory = SQL::Statement::TermFactory->new($stmt);
11 my $whereTerms = $termFactory->buildCondition( $stmt->{where_clause} );
12 my $col = $termFactory->buildCondition( $stmt->{col_obj}->{$name}->{content} );
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15 This package implements a factory to create type and operation based
16 terms. Those terms are used to access data from the table(s) - either
17 when evaluating the where clause or returning column data.
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19 The concept of a factory can be studied in Design Patterns by the Gang
20 of Four. The concept of using polymorphism instead of conditions is
21 suggested by Martin Fowler in his book Refactoring.
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24 buildCondition
25 Builds a condition object from a given (part of a) where clause. This
26 method calls itself recursively for predicates.
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29 Copyright (c) 2001,2005 by Jeff Zucker: jzuckerATcpan.org Copyright (c)
30 2009-2020 by Jens Rehsack: rehsackATcpan.org
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32 All rights reserved.
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34 You may distribute this module under the terms of either the GNU
35 General Public License or the Artistic License, as specified in the
36 Perl README file.
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40perl v5.32.1 2021-01-27 SQL::Statement::TermFactory(3)