Managing passthru connections on an operator graph

1. A computer program product for processing a stream of tuples, each tuple containing one or more attributes, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code comprising computer readable program code configured to:

process the attributes of the stream of tuples using stream operators operating on one or more computer processors and corresponding one or more processing elements;

detect an indicative element from a plurality of stream operators;

transmit, in response to detecting the indicative element, a passthru command to a processing element corresponding to the indicative element, wherein the transmit the passthru command includes:

determine a performance factor of the passthru command on the processing element,

determine a threshold based on resources of a computing system, and

select, in response to the performance factor falling within the threshold, the passthru command; and

alter, in response to receiving the passthru command at the processing element, a portion of attribute processing for the indicative element.

2. The computer program product of claim 1 , wherein the detect an indicative element includes:

determine an essential indicative element; and

disable, in response to finding the essential indicative element, the plurality of stream operators.

3. The computer program product of claim 1 , wherein the transmit a passthru command includes:

determine whether a passthru feature is enabled; and

disable, in response to the passthru feature not being enabled, the plurality of stream operators.

4. The computer program product of claim 1 , wherein select the passthru command includes:

select, in response to a presence of a default passthru method, the passthru command that corresponds to the default passthru method.

5. The computer program product of claim 1 , wherein select the passthru command further includes:

associate a selected passthru command with a default passthru method.

6. The computer program product of claim 1 , wherein the passthru command is selected from writing a reference attribute, passing the tuple through the stream operator, and forming a dummy stream operator.

7. A system for processing a stream of tuples, each tuple having one or more attributes, comprising:

one or more processing elements operating on one or more computer processors configured to processes the attributes from the stream of tuples;

a stream manager configured to alter a portion of attribute processing for an indicative element in response to the processing element receiving a passthru command, further comprising:

a stream operator monitor configured to detect the indicative element from a plurality of stream operators in the one or more processing elements;

a passthru manager configured to transmit the passthru command in response to detecting the indicative element, wherein the stream manager is configured to transmit a passthru command by:

determining a performance factor of the passthru command on the processing element;

determining a threshold based on resources of a computing system; and

selecting, in response to the performance factor falling within the threshold, the passthru command.

8. The system of claim 7 , the stream manager further comprising:

a selection interface configured to present to a user, in response to detecting the indicative element, a plurality of passthru methods that are associated with passthru commands for selection.