@Override
  public TXRegionState txWriteRegion(InternalRegion internalRegion, KeyInfo entryKey) {
    // TODO Auto-generated method stub
    return null;
  }
Get or create a TXRegionStub for the given region. For regions that are new to the tx, we
validate their eligibility.

@param region The region to involve in the tx.
@return existing or new stub for region
geode-core/src/main/java/org/apache/geode/internal/cache/TXStateStub.java