net.time4j.engine

Interface ChronoCondition<T>

All Superinterfaces:

Predicate<T>

All Known Implementing Classes:

Meridiem, Month, Quarter, Weekday

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ChronoCondition<T>
extends Predicate<T>

Represents a temporal condition.

Common examples are queries for Friday the thirteenth or if a date matches a holiday or a weekend. This interface is very similar to the type ChronoQuery<T, Boolean> but allows more clarity and does not throw any exception.

Author:

Meno Hochschild

See Also:

ChronoEntity.matches(ChronoCondition)

Method Summary

Modifier and Type	Method and Description
boolean	test(T context) Decides if given context matches this condition.

Methods inherited from interface java.util.function.Predicate

and, isEqual, negate, or

Method Detail

test

boolean test(T context)

Decides if given context matches this condition.

Due to better readability it is recommended to use following equivalent approach instead of this method::

  import static net.time4j.Weekday.SATURDAY;
  import static net.time4j.Month.JANUARY;

  PlainDate date = PlainDate.of(2014, JANUARY, 25);
  System.out.println(SATURDAY.test(date)); // direct use
  System.out.println(date.matches(SATURDAY)); // recommended callback
 

Specified by:

test in interface Predicate<T>

Parameters:

context - context as base of testing this condition

Returns:

true if given time context matches this condition else false