@Override
  public int getDSFID() {
    return PR_BECOME_PRIMARY_BUCKET_MESSAGE;
  }
Sends a message to make the recipient primary for the bucket.

@param recipient the member to to become primary
@param pr the PartitionedRegion of the bucket
@param bid the bucket to become primary for
@param isRebalance true if directed to become primary by rebalancing
@return the processor used to wait for the response
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/BecomePrimaryBucketMessage.java