jtp.time.func
Class FirstTimePoint

java.lang.Object
  |
  +--jtp.disp.AbstractRelationBasedReasoner
        |
        +--jtp.disp.AbstractRelationBasedBCReasoner
              |
              +--jtp.func.EvaluableFunctionReasoner
                    |
                    +--jtp.time.func.TimePointFunctionReasoner
                          |
                          +--jtp.time.func.FirstTimePoint

All Implemented Interfaces:

Reasoner, RelationBasedBCReasoner, RelationBasedReasoner, Serializable

public class FirstTimePoint

extends TimePointFunctionReasoner

Functional reasoner that takes a CalendarTimePoint tp and a unit (e.g., 'week', 'day'), and returns the first time point in the unit that tp contains. For example, if tp represents the date January 2, 1982 4:30, and the unit is day, then the CalendarTimePoint representing the date January 2, 1982 00:00 will be returned.

See Also:

Serialized Form

Field Summary

protected static int[]	calendarFields
protected static int[]	firstValues
protected Symbol[]	units

Fields inherited from class jtp.time.func.TimePointFunctionReasoner

tvocab

Fields inherited from class jtp.disp.AbstractRelationBasedBCReasoner

arity, polarity, relation

Fields inherited from interface jtp.disp.RelationBasedReasoner

ANY_ARITY, BOTH, NEGATIVE, POSITIVE

Constructor Summary

FirstTimePoint(CanonicalMapping mapping, TimeVocabulary vocab)

Method Summary

protected void	addMetricPointToGraph(CalendarTimePoint ctp, CalendarTimePoint[] beforeAfter)
protected Object	calculate(Object[] args)

Methods inherited from class jtp.time.func.TimePointFunctionReasoner

evaluate

Methods inherited from class jtp.func.EvaluableFunctionReasoner

process

Methods inherited from class jtp.disp.AbstractRelationBasedBCReasoner

acceptable, getArity, getPolarity, getRelation, literalAcceptable

Methods inherited from class java.lang.Object

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

Methods inherited from interface jtp.disp.RelationBasedReasoner

getArity, getPolarity, getRelation

Field Detail

units

protected Symbol[] units

calendarFields

protected static final int[] calendarFields

firstValues

protected static final int[] firstValues

Constructor Detail

FirstTimePoint

public FirstTimePoint(CanonicalMapping mapping,
                      TimeVocabulary vocab)

Method Detail

calculate

protected Object calculate(Object[] args)
                    throws ReasoningException

Specified by:

calculate in class TimePointFunctionReasoner

ReasoningException

addMetricPointToGraph

protected void addMetricPointToGraph(CalendarTimePoint ctp,
                                     CalendarTimePoint[] beforeAfter)
                              throws ReasoningException

ReasoningException