public interface LogicalGraphInstance extends LogicalGraphInstanceView
LogicalGraph
in a specified execution environment.
A LogicalGraphInstance
is the central point of management
for the execution of a logical graph. It:
Modifier and Type | Method and Description |
---|---|
void |
abort()
Cancels any executing processes.
|
OperatorInstance |
getOperatorInstance(LogicalOperator operator)
Looks up an operator instance by the
LogicalOperator added to the
graph. |
InputPortInstance |
getPortInstance(LogicalPort inputPort)
Looks up an operator instance by the input port of a
LogicalOperator
that was added to the graph. |
void |
join()
Waits for an already executing graph instance
to terminate.
|
void |
run()
Executes the graph instance synchronously.
|
void |
start()
Executes the graph instance in the background
Control is immediately returned to the caller.
|
getChildren, getGraphInstanceGUID, getName, getPath, getSnapshot, getState
void run()
complete
state.
This is similar to calling start()
, then
join()
.
DROperatorException
- if errors occur during
execution of the graphGraphCancellationException
- if the graph is canceled
using abort()
or if the calling thread is
is interrupted while blocked. If the caller should
handle its own interruptions, use start()
and
join()
instead.IllegalStateException
- if the instance has already
been executed or canceled.void start()
EXECUTING
.IllegalStateException
- if the instance has
already been executed or canceled.void abort()
complete
, the
request is ignored.void join() throws InterruptedException
complete
.InterruptedException
- if the wait is interruptedDROperatorException
- if errors occurred during
execution of the process network.GraphCancellationException
- if the graph was
canceled using abort()
.OperatorInstance getOperatorInstance(LogicalOperator operator)
LogicalOperator
added to the
graph.operator
- must be an operator that was added to the graphnull
if not found.InputPortInstance getPortInstance(LogicalPort inputPort)
LogicalOperator
that was added to the graph.inputPort
- must be an input port of a LogicalOperator
null
if not found.Copyright © 2016 Actian Corporation. All rights reserved.