out the tests and the general idea.
--- /dev/null
+package SQL::Translator::Schema;
+
+# ----------------------------------------------------------------------
+# $Id: Schema.pm,v 1.1 2003-05-01 04:24:59 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema - SQL::Translator schema object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema;
+ my $schema = SQL::Translator::Schema->new;
+ my $foo_table = $schema->add_table( name => 'foo' );
+
+ $foo_table->add_field(
+ name => 'foo_id',
+ data_type => 'integer',
+ size => 11,
+ is_primary_key => 1,
+ );
+
+ $foo_table->add_field(
+ name => 'foo_name',
+ data_type => 'char',
+ size => 10,
+ );
+
+ $foo_table->add_index(
+ name => '',
+ fields => [ 'foo_name' ],
+ );
+
+ my $view = $schema->add_view(...);
+
+=head1 DESCSIPTION
+
+C<SQL::Translator::Schema> is the object that accepts, validates, and
+returns the database structure.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+use SQL::Translator::Schema::Table;
+use SQL::Translator::Schema::View;
+
+use base 'Class::Base';
+use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+
+$VERSION = 1.00;
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator->new;
+
+=cut
+
+ my ( $self, $config ) = @_;
+ # empty for now
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub add_constraint {
+
+=pod
+
+=head2 add_constraint
+
+Add a constraint object. Returns the new
+SQL::Translator::Schema::Constraint object.
+
+ my $constraint = $table->add_constraint( name => 'foo' );
+
+=cut
+
+ my $self = shift;
+ my $table = SQL::Translator::Schema::Constraint->new( @_ ) or return
+ SQL::Translator::Schema::Constraint->error;
+
+ $self->{'tables'}{ $table->name } = $table;
+ $self->{'tables'}{ $table->name }{'order'} = ++$TABLE_COUNT;
+
+ return $table;
+}
+
+# ----------------------------------------------------------------------
+sub add_table {
+
+=pod
+
+=head2 add_table
+
+Add a table object. Returns the new SQL::Translator::Schema::Table object.
+
+ my $table = $schema->add_table( name => 'foo' );
+
+=cut
+
+ my $self = shift;
+ my $table = SQL::Translator::Schema::Table->new( @_ ) or return
+ SQL::Translator::Schema::Table->error;
+
+ $self->{'tables'}{ $table->name } = $table;
+ $self->{'tables'}{ $table->name }{'order'} = ++$TABLE_COUNT;
+
+ return $table;
+}
+
+# ----------------------------------------------------------------------
+sub add_view {
+
+=pod
+
+=head2 add_view
+
+Add a view object. Returns the new SQL::Translator::Schema::View object.
+
+ my $view = $schema->add_view( name => 'foo' );
+
+=cut
+
+ my $self = shift;
+ my $view = SQL::Translator::Schema::View->new( @_ ) or return
+ SQL::Translator::Schema::View->error;
+
+ $self->{'views'}{ $view->name } = $view;
+ $self->{'views'}{ $view->name }{'order'} = ++$VIEW_COUNT;
+
+ return $view;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
--- /dev/null
+package SQL::Translator::Schema::Constraint;
+
+# ----------------------------------------------------------------------
+# $Id: Constraint.pm,v 1.1 2003-05-01 04:24:59 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema::Constraint - SQL::Translator constraint object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema::Constraint;
+ my $constraint = SQL::Translator::Schema::Constraint->new(
+ name => 'foo',
+ fields => [ id ],
+ type => 'primary_key',
+ );
+
+=head1 DESCRIPTION
+
+C<SQL::Translator::Schema::Constraint> is the constraint object.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+
+use base 'Class::Base';
+use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+
+$VERSION = 1.00;
+
+use constant VALID_TYPE => {
+ primary_key => 1,
+ unique => 1,
+ check => 1,
+ foreign_key => 1,
+};
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator::Schema::Constraint->new(
+ type => 'foreign_key', # type of table constraint
+ name => 'fk_phone_id', # the name of the constraint
+ fields => 'phone_id', # the field in the referring table
+ reference_fields => 'phone_id', # the referenced table
+ reference_table => 'phone', # the referenced fields
+ match_type => 'full', # how to match
+ on_delete_do => 'cascade', # what to do on deletes
+ on_update_do => '', # what to do on updates
+ );
+
+=cut
+
+ my ( $self, $config ) = @_;
+# reference_fields reference_table
+# match_type on_delete_do on_update_do
+ my @fields = qw[ name type fields ];
+
+ for my $arg ( @fields ) {
+ next unless $config->{ $arg };
+ $self->$arg( $config->{ $arg } ) or return;
+ }
+
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub fields {
+
+=pod
+
+=head2 fields
+
+Gets and set the fields the constraint is on. Accepts a list or arrayref,
+return both, too.
+
+ my @fields = $constraint->fields( 'id' );
+
+=cut
+
+ my $self = shift;
+ my $fields = ref $_[0] eq 'ARRAY' ? shift : [ @_ ];
+
+ if ( @$fields ) {
+ $self->{'fields'} = $fields;
+ }
+
+ return wantarray ? @{ $self->{'fields'} || [] } : $self->{'fields'};
+}
+
+# ----------------------------------------------------------------------
+sub name {
+
+=pod
+
+=head2 name
+
+Get or set the constraint's name.
+
+ my $name = $constraint->name('foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'name'} = shift if @_;
+ return $self->{'name'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub type {
+
+=pod
+
+=head2 type
+
+Get or set the constraint's type.
+
+ my $type = $constraint->type('primary_key');
+
+=cut
+
+ my $self = shift;
+
+ if ( my $type = shift ) {
+ return $self->error("Invalid constraint type: $type")
+ unless VALID_TYPE->{ $type };
+ $self->{'type'} = $type;
+ }
+
+ return $self->{'type'} || '';
+}
+
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the constraint is valid or not.
+
+ my $ok = $constraint->is_valid;
+
+=cut
+
+ my $self = shift;
+ return ( $self->name && $self->{'type'} && @{ $self->fields } ) ? 1 : 0;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
--- /dev/null
+package SQL::Translator::Schema::Field;
+
+# ----------------------------------------------------------------------
+# $Id: Field.pm,v 1.1 2003-05-01 04:25:00 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema::Field - SQL::Translator field object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema::Field;
+ my $field = SQL::Translator::Schema::Field->new(
+ name => 'foo',
+ sql => 'select * from foo',
+ );
+
+=head1 DESCRIPTION
+
+C<SQL::Translator::Schema::Field> is the field object.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+
+use base 'Class::Base';
+use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+
+$VERSION = 1.00;
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator::Schema::Field->new;
+
+=cut
+
+ my ( $self, $config ) = @_;
+ $self->params( $config, qw[ name data_type size is_primary_key ] );
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub data_type {
+
+=pod
+
+=head2 data_type
+
+Get or set the field's data_type.
+
+ my $data_type = $field->data_type('integer');
+
+=cut
+
+ my $self = shift;
+ $self->{'data_type'} = shift if @_;
+ return $self->{'data_type'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub is_primary_key {
+
+=pod
+
+=head2 is_primary_key
+
+Get or set the field's is_primary_key attribute.
+
+ my $is_pk = $field->is_primary_key(1);
+
+=cut
+
+ my ( $self, $arg ) = @_;
+
+ if ( defined $arg ) {
+ $self->{'is_primary_key'} = $arg ? 1 : 0;
+ }
+
+ return $self->{'is_primary_key'} || 0;
+}
+
+# ----------------------------------------------------------------------
+sub name {
+
+=pod
+
+=head2 name
+
+Get or set the field's name.
+
+ my $name = $field->name('foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'name'} = shift if @_;
+ return $self->{'name'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub size {
+
+=pod
+
+=head2 size
+
+Get or set the field's size.
+
+ my $size = $field->size('25');
+
+=cut
+
+ my ( $self, $arg ) = @_;
+
+ if ( $arg =~ m/^\d+(?:\.\d+)?$/ ) {
+ $self->{'size'} = $arg;
+ }
+
+ return $self->{'size'} || 0;
+}
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the field is valid or not.
+
+ my $ok = $field->is_valid;
+
+=cut
+
+ my $self = shift;
+ return 1 if $self->name && $self->data_type;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
--- /dev/null
+package SQL::Translator::Schema::Index;
+
+# ----------------------------------------------------------------------
+# $Id: Index.pm,v 1.1 2003-05-01 04:25:00 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema::Index - SQL::Translator index object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema::Index;
+ my $index = SQL::Translator::Schema::Index->new(
+ name => 'foo',
+ fields => [ id ],
+ type => 'unique',
+ );
+
+=head1 DESCRIPTION
+
+C<SQL::Translator::Schema::Index> is the index object.
+
+Primary keys will be considered table constraints, not indices.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+
+use base 'Class::Base';
+use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+
+$VERSION = 1.00;
+
+use constant VALID_TYPE => {
+ unique => 1,
+ normal => 1,
+ full_text => 1, # MySQL only (?)
+};
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator::Schema::Index->new;
+
+=cut
+
+ my ( $self, $config ) = @_;
+ for my $arg ( qw[ name type fields ] ) {
+ next unless $config->{ $arg };
+ $self->$arg( $config->{ $arg } ) or return;
+ }
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub fields {
+
+=pod
+
+=head2 fields
+
+Gets and set the fields the index is on. Accepts a list or arrayref,
+return both, too.
+
+ my @fields = $index->fields( 'id' );
+
+=cut
+
+ my $self = shift;
+ my $fields = ref $_[0] eq 'ARRAY' ? shift : [ @_ ];
+
+ if ( @$fields ) {
+ $self->{'fields'} = $fields;
+ }
+
+ return wantarray ? @{ $self->{'fields'} || [] } : $self->{'fields'};
+}
+
+# ----------------------------------------------------------------------
+sub name {
+
+=pod
+
+=head2 name
+
+Get or set the index's name.
+
+ my $name = $index->name('foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'name'} = shift if @_;
+ return $self->{'name'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub type {
+
+=pod
+
+=head2 type
+
+Get or set the index's type.
+
+ my $type = $index->type('unique');
+
+=cut
+
+ my $self = shift;
+
+ if ( my $type = shift ) {
+ return $self->error("Invalid index type: $type")
+ unless VALID_TYPE->{ $type };
+ $self->{'type'} = $type;
+ }
+
+ return $self->{'type'} || '';
+}
+
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the index is valid or not.
+
+ my $ok = $index->is_valid;
+
+=cut
+
+ my $self = shift;
+ return ( $self->name && $self->{'type'} && @{ $self->fields } ) ? 1 : 0;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
--- /dev/null
+package SQL::Translator::Schema::Table;
+
+# ----------------------------------------------------------------------
+# $Id: Table.pm,v 1.1 2003-05-01 04:25:00 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema::Table - SQL::Translator table object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema::Table;
+ my $foo_table = SQL::Translator::Schema::Table->new('foo');
+
+ $foo_table->add_field(
+ name => 'foo_id',
+ data_type => 'integer',
+ size => 11,
+ is_primary_key => 1,
+ );
+
+ $foo_table->add_field(
+ name => 'foo_name',
+ data_type => 'char',
+ size => 10,
+ );
+
+ $foo_table->add_index(
+ name => '',
+ fields => [ 'foo_name' ],
+ );
+
+=head1 DESCSIPTION
+
+C<SQL::Translator::Schema::Table> is the table object.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+use SQL::Translator::Schema::Constraint;
+use SQL::Translator::Schema::Field;
+use SQL::Translator::Schema::Index;
+
+use base 'Class::Base';
+use vars qw($VERSION);
+
+$VERSION = 1.00;
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator::Schema::Table->new( name => 'foo' );
+
+=cut
+
+ my ( $self, $config ) = @_;
+ $self->params( $config, qw[ name ] ) || return undef;
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub name {
+
+=pod
+
+=head2 name
+
+Get or set the table's name.
+
+ my $table_name = $table->name('foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'name'} = shift if @_;
+ return $self->{'name'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub add_constraint {
+
+=pod
+
+=head2 add_constraint
+
+Add a constraint to the table.
+
+ $table->add_constraint(
+ name => 'pk',
+ fields => [ 'foo_id' ],
+ type => 'primary_key',
+ );
+
+=cut
+
+ my $self = shift;
+ my $constraint = SQL::Translator::Schema::Constraint->new( @_ ) or
+ return SQL::Translator::Schema::Constraint->error;
+ push @{ $self->{'constraints'} }, $constraint;
+ return $constraint;
+}
+
+# ----------------------------------------------------------------------
+sub add_index {
+
+=pod
+
+=head2 add_index
+
+Add an index to the table.
+
+ $table->add_index(
+ name => 'name',
+ fields => [ 'name' ],
+ type => 'normal',
+ );
+
+=cut
+
+ my $self = shift;
+ my $index = SQL::Translator::Schema::Index->new( @_ ) or return
+ SQL::Translator::Schema::Index->error;
+ push @{ $self->{'indices'} }, $index;
+ return $index;
+}
+
+# ----------------------------------------------------------------------
+sub add_field {
+
+=pod
+
+=head2 add_field
+
+Add an field to the table. Returns the SQL::Translator::Schema::Field
+object.
+
+ my $field = $table->add_field(
+ name => 'foo_id',
+ data_type => 'integer',
+ size => 11,
+ is_primary_key => 1,
+ );
+
+=cut
+
+ my $self = shift;
+ my $field = SQL::Translator::Schema::Field->new( @_ ) or return;
+ SQL::Translator::Schema::Field->error;
+ $self->{'fields'}{ $field->name } = $field;
+ return $field;
+}
+
+# ----------------------------------------------------------------------
+sub fields {
+
+=pod
+
+=head2 fields
+
+Returns all the fields.
+
+ my @fields = $table->fields;
+
+=cut
+
+ my $self = shift;
+ return wantarray ? %{ $self->{'fields'} || {} } : $self->{'fields'};
+}
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the view is valid or not.
+
+ my $ok = $view->is_valid;
+
+=cut
+
+ my $self = shift;
+ return ( $self->name && $self->fields ) ? 1 : 0;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
--- /dev/null
+package SQL::Translator::Schema::View;
+
+# ----------------------------------------------------------------------
+# $Id: View.pm,v 1.1 2003-05-01 04:25:00 kycl4rk Exp $
+# ----------------------------------------------------------------------
+# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+# -------------------------------------------------------------------
+
+=pod
+
+=head1 NAME
+
+SQL::Translator::Schema::View - SQL::Translator view object
+
+=head1 SYNOPSIS
+
+ use SQL::Translator::Schema::View;
+ my $view = SQL::Translator::Schema::View->new(
+ name => 'foo',
+ sql => 'select * from foo',
+ );
+
+=head1 DESCRIPTION
+
+C<SQL::Translator::Schema::View> is the view object.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use Class::Base;
+
+use base 'Class::Base';
+use vars qw($VERSION $TABLE_COUNT $VIEW_COUNT);
+
+$VERSION = 1.00;
+
+# ----------------------------------------------------------------------
+sub init {
+
+=pod
+
+=head2 new
+
+Object constructor.
+
+ my $schema = SQL::Translator::Schema::View->new;
+
+=cut
+
+ my ( $self, $config ) = @_;
+ $self->params( $config, qw[ name sql ] );
+ return $self;
+}
+
+# ----------------------------------------------------------------------
+sub name {
+
+=pod
+
+=head2 name
+
+Get or set the view's name.
+
+ my $name = $view->name('foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'name'} = shift if @_;
+ return $self->{'name'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub sql {
+
+=pod
+
+=head2 sql
+
+Get or set the view's SQL.
+
+ my $sql = $view->sql('select * from foo');
+
+=cut
+
+ my $self = shift;
+ $self->{'sql'} = shift if @_;
+ return $self->{'sql'} || '';
+}
+
+# ----------------------------------------------------------------------
+sub is_valid {
+
+=pod
+
+=head2 is_valid
+
+Determine whether the view is valid or not.
+
+ my $ok = $view->is_valid;
+
+=cut
+
+ my $self = shift;
+ return 1 if $self->name && $self->sql;
+}
+
+1;
+
+# ----------------------------------------------------------------------
+
+=pod
+
+=head1 AUTHOR
+
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+
+=cut
projects / dbsrgits/SQL-Translator.git / commitdiff