public static boolean lockKeyForTx(ServerRegionOperation op) {
      return op == PUT || op == PUT_ALL || op == REMOVE_ALL || op == DESTROY || op == INVALIDATE;
    }
@return true if the key associated with this op should be locked on clients locally; false
        otherwise
geode-core/src/main/java/org/apache/geode/internal/cache/tx/TransactionalOperation.java