uk.ac.lancs.relate.trigger.conditions
Class ApproachingInZone

java.lang.Object
  uk.ac.lancs.relate.trigger.conditions.Condition
      uk.ac.lancs.relate.trigger.conditions.ZoneCondition
          uk.ac.lancs.relate.trigger.conditions.ApproachingInZone

All Implemented Interfaces:

java.io.Serializable

public class ApproachingInZone
extends ZoneCondition

This condition is true if a trackable is within the zone and moving towards the point of reference.

Author:

Sara Streng

See Also:

Serialized Form

Constructor Summary

ApproachingInZone(java.lang.String id1, Zone zone, java.lang.String deviceId)
Creates a new condition for a given application, user id and zone.

Method Summary

boolean

evaluate() Return true if the condition is fulfilled, else false.

Methods inherited from class uk.ac.lancs.relate.trigger.conditions.ZoneCondition

defineActiveTrackable, defineInvolvedTrackables, getNrTrackablesInZone, getZone, inZone, setZone

Methods inherited from class uk.ac.lancs.relate.trigger.conditions.Condition

addInvolvedTrackable, addInvolvedTrackable, getActiveTrackable, getApp, getInvolvedTrackables, getTrackableById, setActiveTrackable, setApp, setInvolvedTrackables

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ApproachingInZone

public ApproachingInZone(java.lang.String id1,
                         Zone zone,
                         java.lang.String deviceId)

Creates a new condition for a given application, user id and zone.

Parameters:

id1 - unique id of the active trackable, normally the user

zone - zone

Method Detail

evaluate

public boolean evaluate()

Return true if the condition is fulfilled, else false.

Overrides:

evaluate in class ZoneCondition

Returns:

true if the condition is fulfilled, else false