public void setPullRequestStatus(String pullRequestStatus) {
        this.pullRequestStatus = pullRequestStatus;
    }
<p>
The status of the pull request. The only valid operations are to update the status from <code>OPEN</code> to
<code>OPEN</code>, <code>OPEN</code> to <code>CLOSED</code> or from <code>CLOSED</code> to <code>CLOSED</code>.
</p>

@param pullRequestStatus
       The status of the pull request. The only valid operations are to update the status from <code>OPEN</code>
       to <code>OPEN</code>, <code>OPEN</code> to <code>CLOSED</code> or from <code>CLOSED</code> to
       <code>CLOSED</code>.
@see PullRequestStatusEnum
aws-java-sdk-codecommit/src/main/java/com/amazonaws/services/codecommit/model/UpdatePullRequestStatusRequest.java