Examples of javax.time.calendar.zone.ZoneRules

javax.time.calendar.zone.ZoneRules
The rules defining how the zone offset varies for a single time zone.
The rules model all the historic and future transitions for a time zone. The rules are loaded via {@link TimeZone} and {@link ZoneRulesGroup} andare specific to a group, region and version. The same rules may be shared between multiple versions, regions or even groups.
Serializing an instance of {@code ZoneRules} will store the entire setof rules. It does not store the group, region or version as they are not part of the state of this object.
ZoneRules is an abstract class and must be implemented with care to ensure other classes in the framework operate correctly. All instantiable implementations must be final, immutable and thread-safe. It is only intended that the abstract methods are overridden. Subclasses should be Serializable wherever possible. @author Stephen Colebourne

            String versionID = "";
            if (pos >= 0) {
                versionID = zoneID.substring(pos + 1);
                zoneID = zoneID.substring(0, pos);
            }
            ZoneRules rules = group.getRules(zoneID, versionID);  // validates IDs
            return new TimeZone(group.getID(), zoneID, versionID, rules);
        }
    }

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        ISOChronology.checkNotNull(offset, "ZoneOffset must not be null");
        if (offset == ZoneOffset.UTC) {
            return UTC;
        }
        String id = "UTC" + offset.getID();
        ZoneRules zoneRules = ZoneRules.fixed(offset);
        return new TimeZone("", id, "", zoneRules);
    }

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            if (versionID.length() > 0) {
                throw new CalendricalException("Fixed time zone does not provide versions");
            }
            return this;
        }
        ZoneRules rules = getGroup().getRules(regionID, versionID);  // validates IDs
        if (versionID.equals(this.versionID)) {
            return this;
        }
        return new TimeZone(groupID, regionID, versionID, rules);
    }

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        // fixed rules always in transient field
        if (rules != null) {
            return rules;
        }
        ZoneRulesGroup group = ZoneRulesGroup.getGroup(groupID);
        ZoneRules r = group.getRules(regionID, versionID);
        if (versionID.length() > 0) {
            rules = r;
        }
        return r;
    }

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            TimeZone zone,
            LocalDateTime newDateTime,
            ZonedDateTime oldDateTime) {
        
        // ensure rules used are appropriate if zone has a floating version
        ZoneRules rules = (oldDateTime != null ? oldDateTime.getApplicableRules() : zone.getRules());
        
        OffsetInfo info = rules.getOffsetInfo(newDateTime);
        if (info.isTransition() == false) {
            return OffsetDateTime.from(newDateTime, info.getOffset());
        }
        ZoneOffsetTransition discontinuity = info.getTransition();
        OffsetDateTime result = discontinuity.isGap() ?

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     */
    public static ZonedDateTime of(OffsetDateTime dateTime, TimeZone zone) {
        ISOChronology.checkNotNull(dateTime, "OffsetDateTime must not be null");
        ISOChronology.checkNotNull(zone, "TimeZone must not be null");
        ZoneOffset inputOffset = dateTime.getOffset();
        ZoneRules rules = zone.getRules();  // latest rules version
        OffsetInfo info = rules.getOffsetInfo(dateTime.toLocalDateTime());
        if (info.isValidOffset(inputOffset) == false) {
            if (info.isTransition() && info.getTransition().isGap()) {
                throw new CalendarConversionException("The local time " + dateTime.toLocalDateTime() +
                        " does not exist in time zone " + zone + " due to a daylight savings gap");
            }

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     * @throws CalendricalException if the result exceeds the supported range
     */
    public static ZonedDateTime fromInstant(InstantProvider instantProvider, TimeZone zone) {
        Instant instant = Instant.from(instantProvider);
        ISOChronology.checkNotNull(zone, "TimeZone must not be null");
        ZoneRules rules = zone.getRules();  // latest rules version
        OffsetDateTime offsetDT = OffsetDateTime.fromInstant(instant, rules.getOffset(instant));
        return new ZonedDateTime(offsetDT, zone);
    }

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     * @throws CalendricalException if the result exceeds the supported range
     */
    public static ZonedDateTime fromInstant(OffsetDateTime dateTime, TimeZone zone) {
        ISOChronology.checkNotNull(dateTime, "OffsetDateTime must not be null");
        ISOChronology.checkNotNull(zone, "TimeZone must not be null");
        ZoneRules rules = zone.getRules();  // latest rules version
        if (rules.isValidDateTime(dateTime) == false) {
            ZoneOffset offsetForInstant = rules.getOffset(dateTime);
            dateTime = dateTime.withOffsetSameInstant(offsetForInstant);
        }
        return new ZonedDateTime(dateTime, zone);
    }

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     */
    public static ZonedDateTime dateTime(OffsetDateTime dateTime, TimeZone zone) {
        ISOChronology.checkNotNull(dateTime, "OffsetDateTime must not be null");
        ISOChronology.checkNotNull(zone, "TimeZone must not be null");
        ZoneOffset inputOffset = dateTime.getOffset();
        ZoneRules rules = zone.getRules();  // latest rules version
        OffsetInfo info = rules.getOffsetInfo(dateTime.toLocalDateTime());
        if (info.isValidOffset(inputOffset) == false) {
            if (info.isDiscontinuity() && info.getDiscontinuity().isGap()) {
                throw new CalendarConversionException("The local time " + dateTime.toLocalDateTime() +
                        " does not exist in time zone " + zone + " due to a daylight savings gap");
            }

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     * @throws CalendricalException if the result exceeds the supported range
     */
    public static ZonedDateTime fromInstant(InstantProvider instantProvider, TimeZone zone) {
        Instant instant = Instant.instant(instantProvider);
        ISOChronology.checkNotNull(zone, "TimeZone must not be null");
        ZoneRules rules = zone.getRules();  // latest rules version
        OffsetDateTime offsetDT = OffsetDateTime.fromInstant(instant, rules.getOffset(instant));
        return new ZonedDateTime(offsetDT, zone);
    }

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Related Classes of javax.time.calendar.zone.ZoneRules

javax.time.calendar.ZoneResolver

javax.time.Instant

javax.time.calendar.OffsetDateTime

javax.time.calendar.ZoneOffset

javax.time.calendar.ZonedDateTime

javax.time.calendar.TimeZone

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