/**
* time stamps this schedule item in the underlying storage by udpating the content of the column
* 'bigs:alive' with the current date only if the existing uuid is the same of this process.
*
* @param dataSource the datasource object where this schedule item is stored
* @return true if the update was successful, false otherwise (if the existing uuid is different,
* meaning that somebody else is working on this schedule item)
*/
public Boolean markAlive(DataSource dataSource) {
Table table = dataSource.getTable(ScheduleItem.tableName);
Put put = table.createPutObject(this.getRowkey());
this.lastUpdate = new Date(Core.getTime());
put = this.fillPutObject(put);
put = Data.fillInHostMetadata(put);
Boolean r = table.checkAndPut(this.getRowkey(), "bigs", "uuid", Core.myUUID.getBytes(), put);
return r;
}
