}
@Override
public JsonColumnFamilyDefinition describeColumnFamily(String keyspaceName, String columnFamilyName) {
KeyspaceDefinition def = cluster.describeKeyspace(keyspaceName);
JsonColumnFamilyDefinition jsonDef = null;
for (ColumnFamilyDefinition thriftDef : def.getCfDefs()) {
if (thriftDef.getName().equals(columnFamilyName)) {
jsonDef = mapper.map(thriftDef, JsonColumnFamilyDefinition.class);
continue;
}