protected void handleTableOperation(List<HRegionInfo> hris)
throws IOException {
MasterCoprocessorHost cpHost = ((HMaster) this.server)
.getMasterCoprocessorHost();
if(cpHost != null){
cpHost.preAddColumnHandler(this.tableName, this.familyDesc);
}
// Update table descriptor
this.masterServices.getMasterFileSystem().addColumn(tableName, familyDesc);
if(cpHost != null){
cpHost.postAddColumnHandler(this.tableName, this.familyDesc);