public void setExecutionArn(String executionArn) {
        this.executionArn = executionArn;
    }
<p>
The Amazon Resource Name (ARN) that identifies the execution in which the Map Run was started.
</p>

@param executionArn
       The Amazon Resource Name (ARN) that identifies the execution in which the Map Run was started.
aws-java-sdk-stepfunctions/src/main/java/com/amazonaws/services/stepfunctions/model/DescribeMapRunResult.java