Chapter 6 Managing Process Execution | 157 |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Engine Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Disrupted Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Explicitly Suspended Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Explicitly Terminated Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Activity States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Activity Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Process Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Process Instance Creation | 166 |
Process Instance Execution | 167 |
Activity Creation | 167 |
Activity Execution | 168 |
Activity Termination | 171 |
Process Instance Termination | 173 |
Completed Process Instances | 173 |
Aborted Process Instances | 173 |
Monitoring and Managing Engine Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Monitoring the State of a Session | 174 |
Managing Sessions | 176 |
Suspending or Terminating Sessions | 176 |
Sending and Broadcasting Messages to Sessions | 177 |
Monitoring and Managing Process Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Managing Process Instances | 181 |
Checking the Status of a Process Instance | 181 |
Aborting a Process Instance | 184 |
Managing Activity Instances | 185 |
Checking the Status of an Activity | 185 |
Changing the State of an Activity | 186 |
Managing Activity Queues | 188 |
Checking the Status of an Activity Queue | 188 |
Reprioritizing a Queued Activity | 189 |
Managing Timer Instances | 191 |
Checking the Status of a Timer | 191 |
Changing the Timer State and Expiration Time | 192 |
Managing Process Attributes | 193 |
Checking the Value and Lock State of a Process Attribute | 193 |
Changing a Process Attribute Value | 194 |
Removing a Process Attribute Lock | 195 |
Checking for Bottlenecks in Process Execution | 196 |
Analyzing Process Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
History Log Schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 State Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
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