@Override public void fromData(DataInput in) throws IOException, ClassNotFoundException {
  super.fromData(in);
  refreshInterval=in.readLong();
  alertDefs=(StatAlertDefinition[])DataSerializer.readObjectArray(in);
}

@ Override public void fromData ( DataInput in ) throws IOException , ClassNotFoundException { super . fromData ( in ) ; refreshInterval = in . readLong ( ) ; alertDefs = ( StatAlertDefinition [ ] ) DataSerializer . readObjectArray ( in ) ; }
a callback used by gemfire data serialization mechanism to read from a stream .
