Java Date Time - OffsetTime.query() Examples

package com.logicbig.example.offsettime;

import java.time.LocalTime;
import java.time.OffsetTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.temporal.TemporalQueries;
import java.time.temporal.TemporalUnit;

public class QueryExample {

    public static void main(String... args) {
        OffsetTime d = OffsetTime.of(18, 20, 30, 100,
                ZoneOffset.ofHours(-6));

        LocalTime t = d.query(TemporalQueries.localTime());
        System.out.println(t);

        ZoneOffset z = d.query(TemporalQueries.offset());
        System.out.println(z);

        TemporalUnit p = d.query(TemporalQueries.precision());
        System.out.println(p);

        ZoneId z2 = d.query(TemporalQueries.zone());
        System.out.println(z2);
    }
}

package com.logicbig.example.offsettime;

import java.time.LocalTime;
import java.time.OffsetTime;
import java.time.ZoneOffset;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalQuery;

public class QueryExample2 {

    public static void main(String... args) {
        OffsetTime d = OffsetTime.of(11, 55, 30, 100,
                ZoneOffset.ofHours(-4));

        Boolean b = d.query(ValidTimeQuery);
        System.out.println(b);
    }

    public static final TemporalQuery<Boolean> ValidTimeQuery = new TemporalQuery<Boolean>() {
        @Override
        public Boolean queryFrom(TemporalAccessor temporal) {
            //check if the underlying time is in afternoon.
            OffsetTime t = OffsetTime.from(temporal);
            OffsetTime noon = OffsetTime.of(LocalTime.NOON, t.getOffset());
            return t.isAfter(noon);
        }
    };
}