Method And System For Binding A Watcher Representing A Principal To A Tuple Based On A Matching Criterion

A system for dynamically binding a watching principal to a tuple, the system comprising system components including:

• a management service component configured to determine a watcher matching criterion for binding a watcher representing a principal to a tuple;
• a service agent component configured to generate a message including the matching criterion;
• and
• a protocol service agent component configured to send the message to a publish/subscribe service node configured to host a service for managing a plurality of data tuples,
• wherein in response to an update of a tuple, the service is configured to:
• determine whether a watcher associated with a principal satisfies the watcher matching criterion based on an evaluation of the matching criterion and an attribute of the principal;
• and bind the watcher to the updated tuple when the matching criterion is satisfied so that at least a portion of updated tuple information is provided to the watcher, and
• wherein at least one of the system components includes at least one electronic hardware component.

A system for dynamically binding a watching principal to a tuple, the system comprising:

• means for receiving a watcher matching criterion to bind a watcher representing a principal to a tuple;
• means for receiving an attribute of a first principal represented by a first watcher in a publish/subscribe client;
• means for determining whether the first watcher satisfies the watcher matching criterion when an update to a tuple is detected, the determination based on an evaluation of the watcher matching criterion and the attribute of the first principal;
• and
• means for binding the first watcher to the updated tuple by providing at least a portion of the updated tuple information to the first watcher when the matching criterion is satisfied,
• wherein at least one of the means includes at least one electronic hardware component.

A system for dynamically binding a watching principal to a tuple, the system comprising:

• means for determining a watcher matching criterion for binding a watcher representing a principal to a tuple;
• means for generating a message including the matching criterion;
• and
• means for sending the message to a publish/subscribe service node configured to host a service for managing a plurality of data tuples,
• wherein in response to an update of a tuple, the service is configured to determine whether a watcher associated with a principal satisfies the watcher matching criterion based on an evaluation of the matching criterion and an attribute of the principal, and is configured to bind the watcher to the updated tuple when the matching criterion is satisfied so that at least a portion of updated tuple information is provided to the watcher,
• wherein at least one of the means includes at least one electronic hardware component.

A method for dynamically binding a watching principal to a tuple, the method comprising:

• receiving a watcher matching criterion to bind a watcher representing a principal to a tuple;
• receiving an attribute of a first principal represented by a first watcher in a publish/subscribe client;
• determining whether the first watcher satisfies the watcher matching criterion when an update to a tuple is detected, the determination based on an evaluation of the watcher matching criterion and the attribute of the first principal;
• and
• binding the first watcher to the updated tuple by providing at least a portion of the updated tuple information to the first watcher when the matching criterion is satisfied,
• wherein at least one of the preceding actions is performed on at least one electronic hardware component.

A method for dynamically binding a watching principal to a tuple, the method comprising:

• determining a watcher matching criterion for binding a watcher representing a principal to a tuple;
• generating by a service agent representing a principal a message including the matching criterion;
• and
• sending by a protocol service agent the message to a publish/subscribe service node configured to host a service for managing a plurality of data tuples,
• wherein in response to an update of a tuple, the service is configured to:
• determine whether a watcher associated with a principal satisfies the watcher matching criterion based on an evaluation of the matching criterion and an attribute of the principal;
• and bind the watcher to the updated tuple when the matching criterion is satisfied so that at least a portion of updated tuple information is provided to the watcher, and
• wherein at least one of the preceding actions is performed on at least one electronic hardware component.

A computer readable medium storing a computer program, executable by a machine, for dynamically binding a watching principal to a tuple, the computer program comprising executable instructions for:

• receiving a watcher matching criterion to bind a watcher representing a principal to a tuple;
• receiving an attribute of a first principal represented by a first watcher in a publish/subscribe client;
• determining whether the first watcher satisfies the watcher matching criterion when an update to a tuple is detected, the determination based on an evaluation of the watcher matching criterion and the attribute of the first principal;
• and
• binding the first watcher to the updated tuple by providing at least a portion of the updated tuple information to the first watcher when the matching criterion is satisfied.

A computer readable medium storing a computer program, executable by a machine, for dynamically binding a watching principal to a tuple, the computer program comprising executable instructions for:

• determining a watcher matching criterion for binding a watcher representing a principal to a tuple;
• generating by a service agent representing a principal a message including the matching criterion;
• and
• sending by a protocol service agent the message to a publish/subscribe service node configured to host a service for managing a plurality of data tuples,
• wherein in response to an update of a tuple, the service is configured to:
• determine whether a watcher associated with a principal satisfies the watcher matching criterion based on an evaluation of the matching criterion and an attribute of the principal;
• and bind the watcher to the updated tuple when the matching criterion is satisfied so that at least a portion of updated tuple information is provided to the watcher.