public Long getDecisionTaskCompletedEventId() {
        return this.decisionTaskCompletedEventId;
    }
<p>
The ID of the <code>DecisionTaskCompleted</code> event corresponding to the decision task that resulted in the
<code>RequestCancelExternalWorkflowExecution</code> decision for this cancellation request. This information can
be useful for diagnosing problems by tracing back the chain of events leading up to this event.
</p>

@return The ID of the <code>DecisionTaskCompleted</code> event corresponding to the decision task that resulted
        in the <code>RequestCancelExternalWorkflowExecution</code> decision for this cancellation request. This
        information can be useful for diagnosing problems by tracing back the chain of events leading up to this
        event.
aws-java-sdk-simpleworkflow/src/main/java/com/amazonaws/services/simpleworkflow/model/RequestCancelExternalWorkflowExecutionFailedEventAttributes.java