@Deprecated
  default Result preIncrement(ObserverContext<? extends RegionCoprocessorEnvironment> c,
    Increment increment) throws IOException {
    return null;
  }
Called before Increment.
<p>
Call CoprocessorEnvironment#bypass to skip default actions. If 'bypass' is set, we skip out on
calling any subsequent chained coprocessors.
<p>
Note: Do not retain references to any Cells in 'increment' beyond the life of this invocation.
If need a Cell reference for later use, copy the cell and use that.
@param c         the environment provided by the region server
@param increment increment object
@return result to return to the client if bypassing default processing
@deprecated since 3.0.0 and will be removed in 4.0.0. Use
            {@link #preIncrement(ObserverContext, Increment, WALEdit)} instead.
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionObserver.java