com.jamonapi.utils

Class DateMathComparator

java.lang.Object

com.jamonapi.utils.JAMonComparator

com.jamonapi.utils.DateMathComparator

All Implemented Interfaces:

Serializable, Comparator

public class DateMathComparator
extends JAMonComparator
implements Serializable

Comparator that allows you to pass Calendar fields and a negative number for the number of this filed (i.e. hours/days) that a Date should not exceed. Use fields like Calendar.DATE, HOUR_OF_DAY, DAY_OF_MONTH, DAY_OF_WEEK, DAY_OF_YEAR ETC. Values to be used for dateToAdd in the constructor could be -7 for 7 days ago, or -24 for 24 hours ago depending on what was passed in the dateField.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DateMathComparator(int dateField, int dateToAdd)

Method Summary

Modifier and Type	Method and Description
protected int	compareThis(Object o1, Object o2) 2 dates are equal if they are both above or below the Calendar field threshold date1 is greater if it is greater than threshold and date2 isn't date1 is less than the threshold than it is greater than date2.

Methods inherited from class com.jamonapi.utils.JAMonComparator

compare, isNaturalOrder

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

DateMathComparator

public DateMathComparator(int dateField,
                          int dateToAdd)

Method Detail

compareThis

protected int compareThis(Object o1,
                          Object o2)

1. 2 dates are equal if they are both above or below the Calendar field threshold
2. date1 is greater if it is greater than threshold and date2 isn't
3. date1 is less than the threshold than it is greater than date2.

Overrides:

compareThis in class JAMonComparator