=head1 NAME

UR::Object::Command::List - Fetches and lists objects in different styles.


 package MyLister;

 use strict;
 use warnings;

 use above "UR";

 class MyLister {
     is => 'UR::Object::Command::List',
     has => [
     # add/modify properties


=head1 Provided by the Developer

=head2 subject_class_name (optional)

The subject_class_name is the class for which the objects will be fetched.  It can be specified one of two main ways:


=item I<by_the_end_user_on_the_command_line>

For this do nothing, the end user will have to provide it when the command is run.

=item I<by_the_developer_in the_class_declartion>

For this, in the class declaration, add a has key w/ arrayref of hashrefs.  One of the hashrefs needs to be subject_class_name.  Give it this declaration:

 class MyFetchAndDo {
     is => 'UR::Object::Command::FetchAndDo',
     has => [
         subject_class_name => {
             value => <CLASS NAME>,
             is_constant => 1,


=head2 show (optional)

Add defaults to the show property:

 class MyFetchAndDo {
     is => 'UR::Object::Command::FetchAndDo',
     has => [
         show => {
             default_value => 'name,age', 

=head2 helps (optional)

Overwrite the help_brief, help_synopsis and help_detail methods to provide specific help.  If overwiting the help_detail method, use call '_filter_doc' to get the filter documentation and usage to combine with your specific help.

=head1 List Styles

text, csv, html, xml, pretty (inprogress)


#$HeadURL: svn+ssh://svn/srv/svn/gscpan/perl_modules/trunk/UR/Object/Command/List.pm $
#$Id: List.pm 50329 2009-08-25 20:10:00Z abrummet $