| Interface | Description | 
|---|---|
| Clock | 
 This interface provides full access to the clock 
 | 
| ClockReader | 
 This interface provides clock reading functionality 
 | 
| Execution | 
 Represent a 'path of execution' in a process instance. 
 | 
| ExecutionQuery | 
 Allows programmatic querying of  
Executions. | 
| Job | 
 Represents one job (timer, message, etc.). 
 | 
| JobQuery | 
 Allows programmatic querying of  
Jobs. | 
| NativeExecutionQuery | 
 Allows querying of  
Executions via native (SQL) queries | 
| NativeProcessInstanceQuery | 
 Allows querying of  
ProcessInstances via native (SQL) queries | 
| ProcessInstance | 
 Represents one execution of a   
ProcessDefinition. | 
| ProcessInstanceBuilder | 
 Helper for starting new ProcessInstance. 
 | 
| ProcessInstanceQuery | 
 Allows programmatic querying of  
ProcessInstances. | 
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