SDN Controller Programming Guide

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return alert2;
}
if (alert.getState() != alert2.getState()) {
alert.setState(alert2.getState());
}
return alert;
}
getColumnFamilyDefinitions()
The abstraction layer calls this method to perform operations on secondary column families.
CassandraAlertDao.java:
@Override
protected Collection<ColumnFamilyDefinition<?, ?>>
getColumnFamilyDefinitions() {
Collection<ColumnFamilyDefinition<?, ?>> colFamilies = new
ArrayList<ColumnFamilyDefinition<?, ?>>();
colFamilies.add(AlertColumnFamily.CF_DEF);
colFamilies.add(AlertsBySeverity.CF_DEF);
colFamilies.add(AlertsByState.CF_DEF);
colFamilies.add(AlertsByTopic.CF_DEF);
colFamilies.add(AlertsByOrigin.CF_DEF);
colFamilies.add(AlertsCount.CF_DEF);
colFamilies.add(AlertsByUidAndSysId.CF_DEF);
colFamilies.add(AlertsByTimeStamp.CF_DEF);
return colFamilies;
}
getMainColumnFamily()
This method returns a handle to the main column family.
CassandraAlertDao.java
@Override
protected ColumnFamilyDefinition<String, String> getMainColumnFamily() {
return AlertColumnFamily.CF_DEF;
}
findRows()
This method is used to find the row keys that match a specific search criteria. Used during find
operations.
The abstraction layer calls this method.
CassandraAlertDao.java:
@Override