LookupClassification

```
public interface LookupClassification
```
Maps Subscribers to Classifiers using equality on Classifier to store a Set of Subscribers (hence the need for compareSubscribers) Maps Events to Classifiers through the classify-method (so it knows who to publish to)
The compareSubscribers need to provide a total ordering of the Subscribers

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`LookupClassification`	`classify(LookupClassification event)` Returns the Classifier associated with the given Event
`int`	`compareSubscribers(LookupClassification a, LookupClassification b)` Provides a total ordering of Subscribers (think java.util.Comparator.compare)
`int`	`mapSize()` This is a size hint for the number of Classifiers you expect to have (use powers of 2)
`void`	`publish(LookupClassification event)`
`void`	`publish(LookupClassification event, LookupClassification subscriber)` Publishes the given Event to the given Subscriber
`boolean`	`subscribe(LookupClassification subscriber, LookupClassification to)`
`Index<java.lang.Object,java.lang.Object>`	`subscribers()`
`void`	`unsubscribe(LookupClassification subscriber)`
`boolean`	`unsubscribe(LookupClassification subscriber, LookupClassification from)`

Index<java.lang.Object,java.lang.Object> subscribers()

boolean subscribe(LookupClassification subscriber,
                  LookupClassification to)

boolean unsubscribe(LookupClassification subscriber,
                    LookupClassification from)

void unsubscribe(LookupClassification subscriber)

void publish(LookupClassification event)

Interface LookupClassification