Take me over?
NAME
Alzabo::Runtime::RowCursor - Cursor that returns Alzabo::Runtime::Row
objects
SYNOPSIS
use Alzabo::Runtime::RowCursor;
my $cursor = $schema->table('foo')->all_rows;
while ( my $row = $cursor->next_row )
{
print $row->select('foo'), "\n";
}
DESCRIPTION
Objects in this class are used to return Alzabo::Runtime::Row objects when requested. The cursor does not preload objects but rather creates them on demand, which is much more efficient. For more details on the rational please see the RATIONALE FOR CURSORS section in Alzabo::Runtime::Cursor.
INHERITS FROM
METHODS
new
Parameters
statement =>
Alzabo::Driver::Statement
objecttable =>
Alzabo::Table
object
next_row
Returns the next Alzabo::Runtime::Row
object or undef if no more are available. This behavior can mask errors in your database's referential integrity. For more information on how to deal with this see the HANDLING ERRORS section in Alzabo::Runtime::Cursor.
all_rows
Returns all the rows available from the current point onwards. This means that if there are five rows that will be returned when the object is created and you call next_row
twice, calling all_rows after it will only return three. Calling the errors
method after this will return all errors trapped during the fetching of these rows.
errors
reset
Resets the cursor so that the next next_row
call will return the first row of the set.
AUTHOR
Dave Rolsky, <autarch@urth.org>