NAME
DS::Target - target of rows.
DESCRIPTION
This class is the target of rows. It can be bound to any DS::Source, which will send rows to it. Unless you are into writing complicated classes, you will probably never need to inherit directly from this class.
SUPER CLASSES
None.
METHODS
new( $class, $in_type, $source )
Constructor. Instantiates an object of class $class, taking the type $in_type, attached to the source $source. Besides $class, any of the parameters can be left out.
receive_row( $row )
Triggers processing of $row. This method calls process with $row, and then passes the result to pass_row.
attach_source( $source )
Attaches $source as source. This method also validates data types by calling validate_source_type, throwing an exception if the validation fails.
source( $source )
Accessor for source. This method sets the source of this object and triggers type checking.
validate_source_type( $source_type )
Validates source type. If the $source_type is not valid, it returns false, true otherwise. By default, this method ensures that the ingoing type of this object contains no fields not specified in $source_type. Override if you need more complex checking.
in_type( $type )
Accessor for ingoing type.
SEE ALSO
AUTHOR
Written by Michael Zedeler.