下面列出了java.time.zone.ZoneOffsetTransitionRule#getDayOfMonthIndicator ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Writes the state of the transition rule to the stream.
*
* @param rule the transition rule, not null
* @param out the output stream, not null
* @throws IOException if an error occurs
*/
static void writeRule(ZoneOffsetTransitionRule rule, DataOutput out) throws IOException {
int month = rule.getMonth().getValue();
byte dom = (byte)rule.getDayOfMonthIndicator();
int dow = (rule.getDayOfWeek() == null ? -1 : rule.getDayOfWeek().getValue());
LocalTime time = rule.getLocalTime();
boolean timeEndOfDay = rule.isMidnightEndOfDay();
TimeDefinition timeDefinition = rule.getTimeDefinition();
ZoneOffset standardOffset = rule.getStandardOffset();
ZoneOffset offsetBefore = rule.getOffsetBefore();
ZoneOffset offsetAfter = rule.getOffsetAfter();
int timeSecs = (timeEndOfDay ? 86400 : time.toSecondOfDay());
int stdOffset = standardOffset.getTotalSeconds();
int beforeDiff = offsetBefore.getTotalSeconds() - stdOffset;
int afterDiff = offsetAfter.getTotalSeconds() - stdOffset;
int timeByte = (timeSecs % 3600 == 0 ? (timeEndOfDay ? 24 : time.getHour()) : 31);
int stdOffsetByte = (stdOffset % 900 == 0 ? stdOffset / 900 + 128 : 255);
int beforeByte = (beforeDiff == 0 || beforeDiff == 1800 || beforeDiff == 3600 ? beforeDiff / 1800 : 3);
int afterByte = (afterDiff == 0 || afterDiff == 1800 || afterDiff == 3600 ? afterDiff / 1800 : 3);
int dowByte = (dow == -1 ? 0 : dow);
int b = (month << 28) + // 4 bytes
((dom + 32) << 22) + // 6 bytes
(dowByte << 19) + // 3 bytes
(timeByte << 14) + // 5 bytes
(timeDefinition.ordinal() << 12) + // 2 bytes
(stdOffsetByte << 4) + // 8 bytes
(beforeByte << 2) + // 2 bytes
afterByte; // 2 bytes
out.writeInt(b);
if (timeByte == 31) {
out.writeInt(timeSecs);
}
if (stdOffsetByte == 255) {
out.writeInt(stdOffset);
}
if (beforeByte == 3) {
out.writeInt(offsetBefore.getTotalSeconds());
}
if (afterByte == 3) {
out.writeInt(offsetAfter.getTotalSeconds());
}
}
public TimeZoneRulesImpl(ZoneRules rules) {
final long[] savingsInstantTransition = (long[]) Unsafe.getUnsafe().getObject(rules, SAVING_INSTANT_TRANSITION);
if (savingsInstantTransition.length == 0) {
ZoneOffset[] standardOffsets = (ZoneOffset[]) Unsafe.getUnsafe().getObject(rules, STANDARD_OFFSETS);
standardOffset = standardOffsets[0].getTotalSeconds() * 1000;
} else {
standardOffset = Long.MIN_VALUE;
}
LocalDateTime[] savingsLocalTransitions = (LocalDateTime[]) Unsafe.getUnsafe().getObject(rules, SAVINGS_LOCAL_TRANSITION);
for (int i = 0, n = savingsLocalTransitions.length; i < n; i++) {
LocalDateTime dt = savingsLocalTransitions[i];
historicTransitions.add(Dates.toMillis(dt.getYear(), dt.getMonthValue(), dt.getDayOfMonth(), dt.getHour(), dt.getMinute()) +
dt.getSecond() * 1000 + dt.getNano() / 1000000);
}
cutoffTransition = historicTransitions.getLast();
historyOverlapCheckCutoff = historicTransitions.size() - 1;
ZoneOffsetTransitionRule[] lastRules = (ZoneOffsetTransitionRule[]) Unsafe.getUnsafe().getObject(rules, LAST_RULES);
this.rules = new ObjList<>(lastRules.length);
for (int i = 0, n = lastRules.length; i < n; i++) {
ZoneOffsetTransitionRule zr = lastRules[i];
TransitionRule tr = new TransitionRule();
tr.offsetBefore = zr.getOffsetBefore().getTotalSeconds();
tr.offsetAfter = zr.getOffsetAfter().getTotalSeconds();
tr.standardOffset = zr.getStandardOffset().getTotalSeconds();
tr.dow = zr.getDayOfWeek() == null ? -1 : zr.getDayOfWeek().getValue();
tr.dom = zr.getDayOfMonthIndicator();
tr.month = zr.getMonth().getValue();
tr.midnightEOD = zr.isMidnightEndOfDay();
tr.hour = zr.getLocalTime().getHour();
tr.minute = zr.getLocalTime().getMinute();
tr.second = zr.getLocalTime().getSecond();
switch (zr.getTimeDefinition()) {
case UTC:
tr.timeDef = TransitionRule.UTC;
break;
case STANDARD:
tr.timeDef = TransitionRule.STANDARD;
break;
default:
tr.timeDef = TransitionRule.WALL;
break;
}
this.rules.add(tr);
}
this.ruleCount = lastRules.length;
ZoneOffset[] wallOffsets = (ZoneOffset[]) Unsafe.getUnsafe().getObject(rules, WALL_OFFSETS);
this.wallOffsets = new int[wallOffsets.length];
for (int i = 0, n = wallOffsets.length; i < n; i++) {
this.wallOffsets[i] = wallOffsets[i].getTotalSeconds();
}
this.firstWall = this.wallOffsets[0] * Dates.SECOND_MILLIS;
this.lastWall = this.wallOffsets[wallOffsets.length - 1] * Dates.SECOND_MILLIS;
}
public TimeZoneRulesImpl(ZoneRules rules) {
final long[] savingsInstantTransition = (long[]) Unsafe.getUnsafe().getObject(rules, SAVING_INSTANT_TRANSITION);
if (savingsInstantTransition.length == 0) {
ZoneOffset[] standardOffsets = (ZoneOffset[]) Unsafe.getUnsafe().getObject(rules, STANDARD_OFFSETS);
standardOffset = standardOffsets[0].getTotalSeconds() * Timestamps.SECOND_MICROS;
} else {
standardOffset = Long.MIN_VALUE;
}
LocalDateTime[] savingsLocalTransitions = (LocalDateTime[]) Unsafe.getUnsafe().getObject(rules, SAVINGS_LOCAL_TRANSITION);
for (int i = 0, n = savingsLocalTransitions.length; i < n; i++) {
LocalDateTime dt = savingsLocalTransitions[i];
historicTransitions.add(Timestamps.toMicros(dt.getYear(), dt.getMonthValue(), dt.getDayOfMonth(), dt.getHour(), dt.getMinute()) +
dt.getSecond() * Timestamps.SECOND_MICROS + dt.getNano() / 1000);
}
cutoffTransition = historicTransitions.getLast();
historyOverlapCheckCutoff = historicTransitions.size() - 1;
ZoneOffsetTransitionRule[] lastRules = (ZoneOffsetTransitionRule[]) Unsafe.getUnsafe().getObject(rules, LAST_RULES);
this.rules = new ObjList<>(lastRules.length);
for (int i = 0, n = lastRules.length; i < n; i++) {
ZoneOffsetTransitionRule zr = lastRules[i];
TransitionRule tr = new TransitionRule();
tr.offsetBefore = zr.getOffsetBefore().getTotalSeconds();
tr.offsetAfter = zr.getOffsetAfter().getTotalSeconds();
tr.standardOffset = zr.getStandardOffset().getTotalSeconds();
tr.dow = zr.getDayOfWeek() == null ? -1 : zr.getDayOfWeek().getValue();
tr.dom = zr.getDayOfMonthIndicator();
tr.month = zr.getMonth().getValue();
tr.midnightEOD = zr.isMidnightEndOfDay();
tr.hour = zr.getLocalTime().getHour();
tr.minute = zr.getLocalTime().getMinute();
tr.second = zr.getLocalTime().getSecond();
switch (zr.getTimeDefinition()) {
case UTC:
tr.timeDef = TransitionRule.UTC;
break;
case STANDARD:
tr.timeDef = TransitionRule.STANDARD;
break;
default:
tr.timeDef = TransitionRule.WALL;
break;
}
this.rules.add(tr);
}
this.ruleCount = lastRules.length;
ZoneOffset[] wallOffsets = (ZoneOffset[]) Unsafe.getUnsafe().getObject(rules, WALL_OFFSETS);
this.wallOffsets = new int[wallOffsets.length];
for (int i = 0, n = wallOffsets.length; i < n; i++) {
this.wallOffsets[i] = wallOffsets[i].getTotalSeconds();
}
this.firstWall = this.wallOffsets[0] * Timestamps.SECOND_MICROS;
this.lastWall = this.wallOffsets[wallOffsets.length - 1] * Timestamps.SECOND_MICROS;
}