InterchangingComponent interComp) {
super(cp, allCompNames, hierarchyPosition, conf);
_firstEmitterIndex = String.valueOf(allCompNames.indexOf(firstEmitter.getName()));
_secondEmitterIndex = String.valueOf(allCompNames.indexOf(secondEmitter.getName()));
_aggBatchOutputMillis = cp.getBatchOutputMillis();
_statsUtils = new StatisticsUtilities(getConf(), LOG);
final int firstCardinality = SystemParameters
.getInt(conf, firstEmitter.getName() + "_CARD");
final int secondCardinality = SystemParameters.getInt(conf, secondEmitter.getName()
+ "_CARD");
final int parallelism = SystemParameters.getInt(conf, getID() + "_PAR");