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comparison Lib/IMPL/SQL/Schema/Constraint.pm @ 32:56cef8e3cda6

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+1
author Sergey
date Mon, 09 Nov 2009 01:39:31 +0300
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children 0004faa276dc
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31:d59526f6310e 32:56cef8e3cda6
1 use strict;
2 package IMPL::SQL::Schema::Constraint;
3 use base qw(IMPL::Object IMPL::Object::Disposable);
4
5 use IMPL::Class::Property;
6 use IMPL::Class::Property::Direct;
7
8 BEGIN {
9 public _direct property Name => prop_get;
10 public _direct property Table => prop_get;
11 public _direct property Columns => prop_get;
12 }
13
14 sub CTOR {
15 my ($this,%args) = @_;
16 die new IMPL::InvalidArgumentException("The table argument must be an instance of a table object") if not UNIVERSAL::isa($args{'Table'},'IMPL::SQL::Schema::Table');
17 $this->{$Name} = $args{'Name'};
18 $this->{$Table} = $args{'Table'};
19 $this->{$Columns} = [map { ResolveColumn($this->Table,$_) } @{$args{'Columns'}}];
20 }
21
22 sub ResolveColumn {
23 my ($Table,$Column) = @_;
24
25 my $cn = UNIVERSAL::isa($Column,'IMPL::SQL::Schema::Column') ? $Column->Name : $Column;
26
27 my $resolved = $Table->Column($cn);
28 die new IMPL::InvalidOperationException("The column is not found in the table", $cn, $Table->Name) if not $resolved;
29 return $resolved;
30 }
31
32 sub HasColumn {
33 my ($this,@Columns) = @_;
34
35 my %Columns = map { $_, 1} @Columns;
36
37 return scalar(grep { $Columns{$_->Name} } $this->Columns) == scalar(@Columns);
38 }
39
40 sub UniqName {
41 my ($this) = @_;
42 return $this->{$Table}->Name.'_'.$this->{$Name};
43 }
44
45 sub Dispose {
46 my ($this) = @_;
47
48 delete @$this{$Table,$Columns};
49 $this->SUPER::Dispose;
50 }
51 1;