Tuple Labeler

Author	Mike Haberman
Creation date	06/06/2011
Firing policy	all
Package	org.seasr.meandre.components.tools.tuples

DESCRIPTION

This component takes in two different sets of tuples. The first set is used to build a key-value map. The key field is specified as well as the value field. The second set of tuples is then labelled using the map built from the first set. A value from the tuple is used (as the key into the map) to get the label (the value returned from the map) This label is appended to the incoming tuple are returned as a new tuple set

INPUTS

Name	Description	Example
tuples	set of tuples to be labeled TYPE: org.seasr.datatypes.BasicDataTypes.StringsArray
hashMapTuples	set of tuples that serve as a hash map TYPE: org.seasr.datatypes.BasicDataTypes.StringsArray
meta_tuple	meta data for tuples to be labeled TYPE: org.seasr.datatypes.BasicDataTypes.Strings
hashMapMetaTuple	meta data for hash map tuples TYPE: org.seasr.datatypes.BasicDataTypes.Strings

OUTPUTS

Name	Description	Example
meta_tuple	meta data for the tuples (same as input with an additional field) TYPE: org.seasr.datatypes.BasicDataTypes.Strings
tuples	set of labeled tuples (same as input with an addtional field) TYPE: org.seasr.datatypes.BasicDataTypes.StringsArray
error	This port is used to output any unhandled errors encountered during the execution of this component

PROPERTIES

Name	Description	Default value
_debug_level	Controls the verbosity of debug messages printed by the component during execution. Possible values are: off, severe, warning, info, config, fine, finer, finest, all Append ',mirror' to any of the values above to mirror that output to the server logs.	info
key	field name for the key field of incoming tuples	token
hashKey	field name for the key field of hash map tuples	token
hashValue	field name for the value field of hash map tuples	concept
_ignore_errors	Set to 'true' to ignore all unhandled exceptions and prevent the flow from being terminated. Setting this property to 'false' will result in the flow being terminated in the event an unhandled exception is thrown during the execution of this component	false