NAME

       Alzabo::Create::ColumnDefinition - Column definition object for schema creation

SYNOPSIS

         use Alzabo::Create::ColumnDefinition;

DESCRIPTION

       This object holds information on a column that might need to be shared with another
       column.  The reason this class exists is that if a column is a key in two or more tables,
       then some of the information related to that column should change automatically in
       multiple places whenever it changes at all.  Right now this is only type ('VARCHAR',
       'NUMBER', etc) and length/precision information.  This object also has an 'owner', which
       is the column which created it.

INHERITS FROM

       "Alzabo::ColumnDefinition"

       Note: all relevant documentation from the superclass has been merged into this document.

METHODS

   new
       This method takes the following parameters:

       •   owner => "Alzabo::Create::ColumnDefinition" object

       •   type => $type

       It returns a new "Alzabo::Create::ColumnDefinition" object.

   alter
       See the "Alzabo::Column->alter()" method for details.

   type
       Returns the object's type as a string.

   set_type ($string)
       Sets the object's type.

       Throws: "Alzabo::Exception::Params", "Alzabo::Exception::RDBMSRules"

   length
       Returns the length attribute of the column, or undef if there is none.

   precision
       Returns the precision attribute of the column, or undef if there is none.

   set_length
       This method takes the following parameters:

       •   length => $length

       •   precision => $precision (optional)

       Sets the column's length and precision.  The precision parameter is optional (though some
       column types may require it if the length is set).

       Throws: "Alzabo::Exception::Params", "Alzabo::Exception::RDBMSRules"

   owner
       Returns the "Alzabo::Create::Column" object that owns this definitions (the column that
       created it).