How to use

setComparator

method

in

org.drools.core.util.ObjectHashMap

public SingleThreadedObjectStore(RuleBaseConfiguration conf, Lock lock) {
  this.behaviour = conf.getAssertBehaviour();
  this.lock = lock;
  this.assertMap = new ObjectHashMap();
  if ( AssertBehaviour.IDENTITY.equals(this.behaviour) ) {
    this.assertMap.setComparator( new IdentityAssertMapComparator() );
    this.identityMap = assertMap;
  } else {
    this.assertMap.setComparator( new EqualityAssertMapComparator() );
    this.identityMap = new ObjectHashMap();
    this.identityMap.setComparator( new IdentityAssertMapComparator() );
  }
}

public TruthMaintenanceSystem(final AbstractWorkingMemory wm) {
  this.wm = wm;
  this.justifiedMap = new ObjectHashMap();
  this.assertMap = new ObjectHashMap();
  this.assertMap.setComparator( EqualityKeyComparator.getInstance() );
  
  beliefSystem = wm.getSessionConfiguration().getBeliefSystemType().createInstance( wm, this );
}