Examples of ZoneOffsetTransition

java.time.zone.ZoneOffsetTransition
A transition between two offsets caused by a discontinuity in the local time-line.
A transition between two offsets is normally the result of a daylight savings cutover. The discontinuity is normally a gap in spring and an overlap in autumn. {@code ZoneOffsetTransition} models the transition between the two offsets.
Gaps occur where there are local date-times that simply do not not exist. An example would be when the offset changes from {@code +03:00} to {@code +04:00}. This might be described as 'the clocks will move forward one hour tonight at 1am'.
Overlaps occur where there are local date-times that exist twice. An example would be when the offset changes from {@code +04:00} to {@code +03:00}. This might be described as 'the clocks will move back one hour tonight at 2am'. @implSpec This class is immutable and thread-safe. @since 1.8
javax.time.calendar.zone.ZoneOffsetTransition
A transition between two offsets caused by a discontinuity in the local time-line.
A transition between two offsets is normally the result of a daylight savings cutover. The discontinuity is normally a gap in spring and an overlap in autumn. ZoneOffsetTransition models the transition between the two offsets.
There are two types of transition - a gap and an overlap. Gaps occur where there are local date-times that simply do not not exist. An example would be when the offset changes from +01:00 to +02:00. Overlaps occur where there are local date-times that exist twice. An example would be when the offset changes from +02:00 to +01:00.
ZoneOffsetTransition is immutable and thread-safe. @author Stephen Colebourne
org.threeten.bp.zone.ZoneOffsetTransition
A transition between two offsets caused by a discontinuity in the local time-line.
A transition between two offsets is normally the result of a daylight savings cutover. The discontinuity is normally a gap in spring and an overlap in autumn. {@code ZoneOffsetTransition} models the transition between the two offsets.
Gaps occur where there are local date-times that simply do not not exist. An example would be when the offset changes from {@code +03:00} to {@code +04:00}. This might be described as 'the clocks will move forward one hour tonight at 1am'.
Overlaps occur where there are local date-times that exist twice. An example would be when the offset changes from {@code +04:00} to {@code +03:00}. This might be described as 'the clocks will move back one hour tonight at 2am'.
Specification for implementors
This class is immutable and thread-safe.

Examples of org.threeten.bp.zone.ZoneOffsetTransition

    }


    public void test_Paris_getOffsetInfo_gap() {
        ZoneId test = ZoneId.of("Europe/Paris");
        final LocalDateTime dateTime = LocalDateTime.of(2008, 3, 30, 2, 0, 0, 0);
        ZoneOffsetTransition trans = checkOffset(test.getRules(), dateTime, ZoneOffset.ofHours(1), GAP);
        assertEquals(trans.isGap(), true);
        assertEquals(trans.isOverlap(), false);
        assertEquals(trans.getOffsetBefore(), ZoneOffset.ofHours(1));
        assertEquals(trans.getOffsetAfter(), ZoneOffset.ofHours(2));
        assertEquals(trans.getInstant(), createInstant(2008, 3, 30, 1, 0, 0, 0, ZoneOffset.UTC));
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(0)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(1)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(2)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(3)), false);
        assertEquals(trans.toString(), "Transition[Gap at 2008-03-30T02:00+01:00 to +02:00]");


        assertFalse(trans.equals(null));
        assertFalse(trans.equals(ZoneOffset.ofHours(1)));
        assertTrue(trans.equals(trans));


        final ZoneOffsetTransition otherDis = test.getRules().getTransition(dateTime);
        assertTrue(trans.equals(otherDis));
        assertEquals(trans.hashCode(), otherDis.hashCode());
    }

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

    }


    public void test_Paris_getOffsetInfo_overlap() {
        ZoneId test = ZoneId.of("Europe/Paris");
        final LocalDateTime dateTime = LocalDateTime.of(2008, 10, 26, 2, 0, 0, 0);
        ZoneOffsetTransition trans = checkOffset(test.getRules(), dateTime, ZoneOffset.ofHours(2), OVERLAP);
        assertEquals(trans.isGap(), false);
        assertEquals(trans.isOverlap(), true);
        assertEquals(trans.getOffsetBefore(), ZoneOffset.ofHours(2));
        assertEquals(trans.getOffsetAfter(), ZoneOffset.ofHours(1));
        assertEquals(trans.getInstant(), createInstant(2008, 10, 26, 1, 0, 0, 0, ZoneOffset.UTC));
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(0)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(1)), true);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(2)), true);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(3)), false);
        assertEquals(trans.toString(), "Transition[Overlap at 2008-10-26T03:00+02:00 to +01:00]");


        assertFalse(trans.equals(null));
        assertFalse(trans.equals(ZoneOffset.ofHours(2)));
        assertTrue(trans.equals(trans));


        final ZoneOffsetTransition otherDis = test.getRules().getTransition(dateTime);
        assertTrue(trans.equals(otherDis));
        assertEquals(trans.hashCode(), otherDis.hashCode());
    }

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

        // need to handle case where there is a gap from 11:30 to 00:30
        // standard ZDT factory would result in 01:00 rather than 00:30
        LocalDateTime ldt = atTime(LocalTime.MIDNIGHT);
        if (zone instanceof ZoneOffset == false) {
            ZoneRules rules = zone.getRules();
            ZoneOffsetTransition trans = rules.getTransition(ldt);
            if (trans != null && trans.isGap()) {
                ldt = trans.getDateTimeAfter();
            }
        }
        return ZonedDateTime.of(ldt, zone);
    }

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

    }


    public void test_NewYork_getOffsetInfo_gap() {
        ZoneId test = ZoneId.of("America/New_York");
        final LocalDateTime dateTime = LocalDateTime.of(2008, 3, 9, 2, 0, 0, 0);
        ZoneOffsetTransition trans = checkOffset(test.getRules(), dateTime, ZoneOffset.ofHours(-5), GAP);
        assertEquals(trans.getOffsetBefore(), ZoneOffset.ofHours(-5));
        assertEquals(trans.getOffsetAfter(), ZoneOffset.ofHours(-4));
        assertEquals(trans.getInstant(), createInstant(2008, 3, 9, 2, 0, 0, 0, ZoneOffset.ofHours(-5)));
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-6)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-5)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-4)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-3)), false);
        assertEquals(trans.toString(), "Transition[Gap at 2008-03-09T02:00-05:00 to -04:00]");


        assertFalse(trans.equals(null));
        assertFalse(trans.equals(ZoneOffset.ofHours(-5)));
        assertTrue(trans.equals(trans));


        final ZoneOffsetTransition otherTrans = test.getRules().getTransition(dateTime);
        assertTrue(trans.equals(otherTrans));


        assertEquals(trans.hashCode(), otherTrans.hashCode());
    }

View Full Code Here

Examples of org.threeten.bp.zone.ZoneOffsetTransition

    }


    public void test_NewYork_getOffsetInfo_overlap() {
        ZoneId test = ZoneId.of("America/New_York");
        final LocalDateTime dateTime = LocalDateTime.of(2008, 11, 2, 1, 0, 0, 0);
        ZoneOffsetTransition trans = checkOffset(test.getRules(), dateTime, ZoneOffset.ofHours(-4), OVERLAP);
        assertEquals(trans.getOffsetBefore(), ZoneOffset.ofHours(-4));
        assertEquals(trans.getOffsetAfter(), ZoneOffset.ofHours(-5));
        assertEquals(trans.getInstant(), createInstant(2008, 11, 2, 2, 0, 0, 0, ZoneOffset.ofHours(-4)));
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-1)), false);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-5)), true);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(-4)), true);
        assertEquals(trans.isValidOffset(ZoneOffset.ofHours(2)), false);
        assertEquals(trans.toString(), "Transition[Overlap at 2008-11-02T02:00-04:00 to -05:00]");


        assertFalse(trans.equals(null));
        assertFalse(trans.equals(ZoneOffset.ofHours(-4)));
        assertTrue(trans.equals(trans));


        final ZoneOffsetTransition otherTrans = test.getRules().getTransition(dateTime);
        assertTrue(trans.equals(otherTrans));


        assertEquals(trans.hashCode(), otherTrans.hashCode());
    }

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

        assertEquals(rules.getOffset(dateTime), offset);
        if (type == 1) {
            assertEquals(validOffsets.get(0), offset);
            return null;
        } else {
            ZoneOffsetTransition zot = rules.getTransition(dateTime);
            assertNotNull(zot);
            assertEquals(zot.isOverlap(), type == 2);
            assertEquals(zot.isGap(), type == 0);
            assertEquals(zot.isValidOffset(offset), type == 2);
            return zot;
        }
    }

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

        List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
        ZoneOffset offset;
        if (validOffsets.size() == 1) {
            offset = validOffsets.get(0);
        } else if (validOffsets.size() == 0) {
            ZoneOffsetTransition trans = rules.getTransition(localDateTime);
            localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
            offset = trans.getOffsetAfter();
        } else {
            if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
                offset = preferredOffset;
            } else {
                offset = Jdk8Methods.requireNonNull(validOffsets.get(0), "offset");  // protect against bad ZoneRules

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

        Jdk8Methods.requireNonNull(localDateTime, "localDateTime");
        Jdk8Methods.requireNonNull(offset, "offset");
        Jdk8Methods.requireNonNull(zone, "zone");
        ZoneRules rules = zone.getRules();
        if (rules.isValidOffset(localDateTime, offset) == false) {
            ZoneOffsetTransition trans = rules.getTransition(localDateTime);
            if (trans != null && trans.isGap()) {
                // error message says daylight savings for simplicity
                // even though there are other kinds of gaps
                throw new DateTimeException("LocalDateTime '" + localDateTime +
                        "' does not exist in zone '" + zone +
                        "' due to a gap in the local time-line, typically caused by daylight savings");

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

     *
     * @return a {@code ZonedDateTime} based on this date-time with the earlier offset, not null
     */
    @Override
    public ZonedDateTime withEarlierOffsetAtOverlap() {
        ZoneOffsetTransition trans = getZone().getRules().getTransition(dateTime);
        if (trans != null && trans.isOverlap()) {
            ZoneOffset earlierOffset = trans.getOffsetBefore();
            if (earlierOffset.equals(offset) == false) {
                return new ZonedDateTime(dateTime, earlierOffset, zone);
            }
        }
        return this;

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Examples of org.threeten.bp.zone.ZoneOffsetTransition

     *
     * @return a {@code ZonedDateTime} based on this date-time with the later offset, not null
     */
    @Override
    public ZonedDateTime withLaterOffsetAtOverlap() {
        ZoneOffsetTransition trans = getZone().getRules().getTransition(toLocalDateTime());
        if (trans != null) {
            ZoneOffset laterOffset = trans.getOffsetAfter();
            if (laterOffset.equals(offset) == false) {
                return new ZonedDateTime(dateTime, laterOffset, zone);
            }
        }
        return this;

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Examples of ZoneOffsetTransition

Specification for implementors

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition

Examples of org.threeten.bp.zone.ZoneOffsetTransition