- * Most applications should declare method signatures, fields and variables - * as {@link LocalDateTime}, not this interface. - *
- * A {@code ChronoLocalDateTime} is the abstract representation of a local date-time - * where the {@code Chrono chronology}, or calendar system, is pluggable. - * The date-time is defined in terms of fields expressed by {@link TemporalField}, - * where most common implementations are defined in {@link ChronoField}. - * The chronology defines how the calendar system operates and the meaning of - * the standard fields. - * - *
- * Ensure that the discussion in {@code ChronoLocalDate} has been read and understood - * before using this interface. - * - *
- * This method differs from the comparison in {@link #compareTo} in that it
- * only compares the underlying date and not the chronology.
- * This allows dates in different calendar systems to be compared based
- * on the time-line position.
- *
- * @see #isAfter
- * @see #isBefore
- * @see #isEqual
- */
- Comparator
- * This returns a local date with the same year, month and day
- * as this date-time.
- *
- * @return the date part of this date-time, not null
- */
- ChronoLocalDate
- * This returns a local time with the same hour, minute, second and
- * nanosecond as this date-time.
- *
- * @return the time part of this date-time, not null
- */
- LocalTime getTime();
-
-
- //-----------------------------------------------------------------------
- // override for covariant return type
- /**
- * {@inheritDoc}
- * @throws DateTimeException {@inheritDoc}
- * @throws ArithmeticException {@inheritDoc}
- */
- @Override
- public default ChronoLocalDateTime
- * This queries this date-time using the specified query strategy object.
- * The {@code TemporalQuery} object defines the logic to be used to
- * obtain the result. Read the documentation of the query to understand
- * what the result of this method will be.
- *
- * The result of this method is obtained by invoking the
- * {@link java.time.temporal.TemporalQuery#queryFrom(TemporalAccessor)} method on the
- * specified query passing {@code this} as the argument.
- *
- * @param
- * This returns a temporal object of the same observable type as the input
- * with the date and time changed to be the same as this.
- *
- * The adjustment is equivalent to using {@link Temporal#with(TemporalField, long)}
- * twice, passing {@link ChronoField#EPOCH_DAY} and
- * {@link ChronoField#NANO_OF_DAY} as the fields.
- *
- * In most cases, it is clearer to reverse the calling pattern by using
- * {@link Temporal#with(TemporalAdjuster)}:
- *
- * This instance is immutable and unaffected by this method call.
- *
- * @param temporal the target object to be adjusted, not null
- * @return the adjusted object, not null
- * @throws DateTimeException if unable to make the adjustment
- * @throws ArithmeticException if numeric overflow occurs
- */
- @Override
- public default Temporal adjustInto(Temporal temporal) {
- return temporal
- .with(EPOCH_DAY, getDate().toEpochDay())
- .with(NANO_OF_DAY, getTime().toNanoOfDay());
- }
-
- //-----------------------------------------------------------------------
- /**
- * Returns a zoned date-time formed from this date-time and the specified time-zone.
- *
- * This creates a zoned date-time matching the input date-time as closely as possible.
- * Time-zone rules, such as daylight savings, mean that not every local date-time
- * is valid for the specified zone, thus the local date-time may be adjusted.
- *
- * The local date-time is resolved to a single instant on the time-line.
- * This is achieved by finding a valid offset from UTC/Greenwich for the local
- * date-time as defined by the {@link ZoneRules rules} of the zone ID.
- *
- * In most cases, there is only one valid offset for a local date-time.
- * In the case of an overlap, where clocks are set back, there are two valid offsets.
- * This method uses the earlier offset typically corresponding to "summer".
- *
- * In the case of a gap, where clocks jump forward, there is no valid offset.
- * Instead, the local date-time is adjusted to be later by the length of the gap.
- * For a typical one hour daylight savings change, the local date-time will be
- * moved one hour later into the offset typically corresponding to "summer".
- *
- * To obtain the later offset during an overlap, call
- * {@link ChronoZonedDateTime#withLaterOffsetAtOverlap()} on the result of this method.
- *
- * This instance is immutable and unaffected by this method call.
- *
- * @param zone the time-zone to use, not null
- * @return the zoned date-time formed from this date-time, not null
- */
- ChronoZonedDateTime
- * This combines this local date-time and the specified offset to form
- * an {@code Instant}.
- *
- * This default implementation calculates from the epoch-day of the date and the
- * second-of-day of the time.
- *
- * @param offset the offset to use for the conversion, not null
- * @return an {@code Instant} representing the same instant, not null
- */
- public default Instant toInstant(ZoneOffset offset) {
- return Instant.ofEpochSecond(toEpochSecond(offset), getTime().getNano());
- }
-
- /**
- * Converts this date-time to the number of seconds from the epoch
- * of 1970-01-01T00:00:00Z.
- *
- * This combines this local date-time and the specified offset to calculate the
- * epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z.
- * Instants on the time-line after the epoch are positive, earlier are negative.
- *
- * This default implementation calculates from the epoch-day of the date and the
- * second-of-day of the time.
- *
- * @param offset the offset to use for the conversion, not null
- * @return the number of seconds from the epoch of 1970-01-01T00:00:00Z
- */
- public default long toEpochSecond(ZoneOffset offset) {
- Objects.requireNonNull(offset, "offset");
- long epochDay = getDate().toEpochDay();
- long secs = epochDay * 86400 + getTime().toSecondOfDay();
- secs -= offset.getTotalSeconds();
- return secs;
- }
-
- //-----------------------------------------------------------------------
- /**
- * Compares this date-time to another date-time, including the chronology.
- *
- * The comparison is based first on the underlying time-line date-time, then
- * on the chronology.
- * It is "consistent with equals", as defined by {@link Comparable}.
- *
- * For example, the following is the comparator order:
- *
- * If all the date-time objects being compared are in the same chronology, then the
- * additional chronology stage is not required and only the local date-time is used.
- *
- * This default implementation performs the comparison defined above.
- *
- * @param other the other date-time to compare to, not null
- * @return the comparator value, negative if less, positive if greater
- */
- @Override
- public default int compareTo(ChronoLocalDateTime other) {
- int cmp = getDate().compareTo(other.getDate());
- if (cmp == 0) {
- cmp = getTime().compareTo(other.getTime());
- if (cmp == 0) {
- cmp = getDate().getChrono().compareTo(other.getDate().getChrono());
- }
- }
- return cmp;
- }
-
- /**
- * Checks if this date-time is after the specified date-time ignoring the chronology.
- *
- * This method differs from the comparison in {@link #compareTo} in that it
- * only compares the underlying date-time and not the chronology.
- * This allows dates in different calendar systems to be compared based
- * on the time-line position.
- *
- * This default implementation performs the comparison based on the epoch-day
- * and nano-of-day.
- *
- * @param other the other date-time to compare to, not null
- * @return true if this is after the specified date-time
- */
- public default boolean isAfter(ChronoLocalDateTime other) {
- long thisEpDay = this.getDate().toEpochDay();
- long otherEpDay = other.getDate().toEpochDay();
- return thisEpDay > otherEpDay ||
- (thisEpDay == otherEpDay && this.getTime().toNanoOfDay() > other.getTime().toNanoOfDay());
- }
-
- /**
- * Checks if this date-time is before the specified date-time ignoring the chronology.
- *
- * This method differs from the comparison in {@link #compareTo} in that it
- * only compares the underlying date-time and not the chronology.
- * This allows dates in different calendar systems to be compared based
- * on the time-line position.
- *
- * This default implementation performs the comparison based on the epoch-day
- * and nano-of-day.
- *
- * @param other the other date-time to compare to, not null
- * @return true if this is before the specified date-time
- */
- public default boolean isBefore(ChronoLocalDateTime other) {
- long thisEpDay = this.getDate().toEpochDay();
- long otherEpDay = other.getDate().toEpochDay();
- return thisEpDay < otherEpDay ||
- (thisEpDay == otherEpDay && this.getTime().toNanoOfDay() < other.getTime().toNanoOfDay());
- }
-
- /**
- * Checks if this date-time is equal to the specified date-time ignoring the chronology.
- *
- * This method differs from the comparison in {@link #compareTo} in that it
- * only compares the underlying date and time and not the chronology.
- * This allows date-times in different calendar systems to be compared based
- * on the time-line position.
- *
- * This default implementation performs the comparison based on the epoch-day
- * and nano-of-day.
- *
- * @param other the other date-time to compare to, not null
- * @return true if the underlying date-time is equal to the specified date-time on the timeline
- */
- public default boolean isEqual(ChronoLocalDateTime other) {
- // Do the time check first, it is cheaper than computing EPOCH day.
- return this.getTime().toNanoOfDay() == other.getTime().toNanoOfDay() &&
- this.getDate().toEpochDay() == other.getDate().toEpochDay();
- }
-
- /**
- * Checks if this date-time is equal to another date-time, including the chronology.
- *
- * Compares this date-time with another ensuring that the date-time and chronology are the same.
- *
- * @param obj the object to check, null returns false
- * @return true if this is equal to the other date
- */
- @Override
- boolean equals(Object obj);
-
- /**
- * A hash code for this date-time.
- *
- * @return a suitable hash code
- */
- @Override
- int hashCode();
-
- //-----------------------------------------------------------------------
- /**
- * Outputs this date-time as a {@code String}.
- *
- * The output will include the full local date-time and the chronology ID.
- *
- * @return a string representation of this date-time, not null
- */
- @Override
- String toString();
-
- /**
- * Outputs this date-time as a {@code String} using the formatter.
- *
- * The default implementation must behave as follows:
- *
+ * Most applications should declare method signatures, fields and variables
+ * as {@link LocalDateTime}, not this interface.
+ *
+ * A {@code ChronoLocalDateTime} is the abstract representation of a local date-time
+ * where the {@code Chronology chronology}, or calendar system, is pluggable.
+ * The date-time is defined in terms of fields expressed by {@link TemporalField},
+ * where most common implementations are defined in {@link ChronoField}.
+ * The chronology defines how the calendar system operates and the meaning of
+ * the standard fields.
+ *
+ *
+ * Ensure that the discussion in {@code ChronoLocalDate} has been read and understood
+ * before using this interface.
+ *
+ *
+ * This method differs from the comparison in {@link #compareTo} in that it
+ * only compares the underlying date and not the chronology.
+ * This allows dates in different calendar systems to be compared based
+ * on the time-line position.
+ *
+ * @see #isAfter
+ * @see #isBefore
+ * @see #isEqual
+ */
+ Comparator
+ * This returns a local date with the same year, month and day
+ * as this date-time.
+ *
+ * @return the date part of this date-time, not null
+ */
+ D toLocalDate() ;
+
+ /**
+ * Gets the local time part of this date-time.
+ *
+ * This returns a local time with the same hour, minute, second and
+ * nanosecond as this date-time.
+ *
+ * @return the time part of this date-time, not null
+ */
+ LocalTime toLocalTime();
+
+ @Override // Override to provide javadoc
+ public boolean isSupported(TemporalField field);
+
+ //-----------------------------------------------------------------------
+ // override for covariant return type
+ /**
+ * {@inheritDoc}
+ * @throws DateTimeException {@inheritDoc}
+ * @throws ArithmeticException {@inheritDoc}
+ */
+ @Override
+ public default ChronoLocalDateTime
+ * This queries this date-time using the specified query strategy object.
+ * The {@code TemporalQuery} object defines the logic to be used to
+ * obtain the result. Read the documentation of the query to understand
+ * what the result of this method will be.
+ *
+ * The result of this method is obtained by invoking the
+ * {@link java.time.temporal.TemporalQuery#queryFrom(TemporalAccessor)} method on the
+ * specified query passing {@code this} as the argument.
+ *
+ * @param
+ * This returns a temporal object of the same observable type as the input
+ * with the date and time changed to be the same as this.
+ *
+ * The adjustment is equivalent to using {@link Temporal#with(TemporalField, long)}
+ * twice, passing {@link ChronoField#EPOCH_DAY} and
+ * {@link ChronoField#NANO_OF_DAY} as the fields.
+ *
+ * In most cases, it is clearer to reverse the calling pattern by using
+ * {@link Temporal#with(TemporalAdjuster)}:
+ *
+ * This instance is immutable and unaffected by this method call.
+ *
+ * @param temporal the target object to be adjusted, not null
+ * @return the adjusted object, not null
+ * @throws DateTimeException if unable to make the adjustment
+ * @throws ArithmeticException if numeric overflow occurs
+ */
+ @Override
+ public default Temporal adjustInto(Temporal temporal) {
+ return temporal
+ .with(EPOCH_DAY, toLocalDate().toEpochDay())
+ .with(NANO_OF_DAY, toLocalTime().toNanoOfDay());
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Combines this time with a time-zone to create a {@code ChronoZonedDateTime}.
+ *
+ * This returns a {@code ChronoZonedDateTime} formed from this date-time at the
+ * specified time-zone. The result will match this date-time as closely as possible.
+ * Time-zone rules, such as daylight savings, mean that not every local date-time
+ * is valid for the specified zone, thus the local date-time may be adjusted.
+ *
+ * The local date-time is resolved to a single instant on the time-line.
+ * This is achieved by finding a valid offset from UTC/Greenwich for the local
+ * date-time as defined by the {@link ZoneRules rules} of the zone ID.
+ *
+ * In most cases, there is only one valid offset for a local date-time.
+ * In the case of an overlap, where clocks are set back, there are two valid offsets.
+ * This method uses the earlier offset typically corresponding to "summer".
+ *
+ * In the case of a gap, where clocks jump forward, there is no valid offset.
+ * Instead, the local date-time is adjusted to be later by the length of the gap.
+ * For a typical one hour daylight savings change, the local date-time will be
+ * moved one hour later into the offset typically corresponding to "summer".
+ *
+ * To obtain the later offset during an overlap, call
+ * {@link ChronoZonedDateTime#withLaterOffsetAtOverlap()} on the result of this method.
+ *
+ * @param zone the time-zone to use, not null
+ * @return the zoned date-time formed from this date-time, not null
+ */
+ ChronoZonedDateTime
+ * This combines this local date-time and the specified offset to form
+ * an {@code Instant}.
+ *
+ * This default implementation calculates from the epoch-day of the date and the
+ * second-of-day of the time.
+ *
+ * @param offset the offset to use for the conversion, not null
+ * @return an {@code Instant} representing the same instant, not null
+ */
+ public default Instant toInstant(ZoneOffset offset) {
+ return Instant.ofEpochSecond(toEpochSecond(offset), toLocalTime().getNano());
+ }
+
+ /**
+ * Converts this date-time to the number of seconds from the epoch
+ * of 1970-01-01T00:00:00Z.
+ *
+ * This combines this local date-time and the specified offset to calculate the
+ * epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z.
+ * Instants on the time-line after the epoch are positive, earlier are negative.
+ *
+ * This default implementation calculates from the epoch-day of the date and the
+ * second-of-day of the time.
+ *
+ * @param offset the offset to use for the conversion, not null
+ * @return the number of seconds from the epoch of 1970-01-01T00:00:00Z
+ */
+ public default long toEpochSecond(ZoneOffset offset) {
+ Objects.requireNonNull(offset, "offset");
+ long epochDay = toLocalDate().toEpochDay();
+ long secs = epochDay * 86400 + toLocalTime().toSecondOfDay();
+ secs -= offset.getTotalSeconds();
+ return secs;
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Compares this date-time to another date-time, including the chronology.
+ *
+ * The comparison is based first on the underlying time-line date-time, then
+ * on the chronology.
+ * It is "consistent with equals", as defined by {@link Comparable}.
+ *
+ * For example, the following is the comparator order:
+ *
+ * If all the date-time objects being compared are in the same chronology, then the
+ * additional chronology stage is not required and only the local date-time is used.
+ *
+ * This default implementation performs the comparison defined above.
+ *
+ * @param other the other date-time to compare to, not null
+ * @return the comparator value, negative if less, positive if greater
+ */
+ @Override
+ public default int compareTo(ChronoLocalDateTime other) {
+ int cmp = toLocalDate().compareTo(other.toLocalDate());
+ if (cmp == 0) {
+ cmp = toLocalTime().compareTo(other.toLocalTime());
+ if (cmp == 0) {
+ cmp = toLocalDate().getChronology().compareTo(other.toLocalDate().getChronology());
+ }
+ }
+ return cmp;
+ }
+
+ /**
+ * Checks if this date-time is after the specified date-time ignoring the chronology.
+ *
+ * This method differs from the comparison in {@link #compareTo} in that it
+ * only compares the underlying date-time and not the chronology.
+ * This allows dates in different calendar systems to be compared based
+ * on the time-line position.
+ *
+ * This default implementation performs the comparison based on the epoch-day
+ * and nano-of-day.
+ *
+ * @param other the other date-time to compare to, not null
+ * @return true if this is after the specified date-time
+ */
+ public default boolean isAfter(ChronoLocalDateTime other) {
+ long thisEpDay = this.toLocalDate().toEpochDay();
+ long otherEpDay = other.toLocalDate().toEpochDay();
+ return thisEpDay > otherEpDay ||
+ (thisEpDay == otherEpDay && this.toLocalTime().toNanoOfDay() > other.toLocalTime().toNanoOfDay());
+ }
+
+ /**
+ * Checks if this date-time is before the specified date-time ignoring the chronology.
+ *
+ * This method differs from the comparison in {@link #compareTo} in that it
+ * only compares the underlying date-time and not the chronology.
+ * This allows dates in different calendar systems to be compared based
+ * on the time-line position.
+ *
+ * This default implementation performs the comparison based on the epoch-day
+ * and nano-of-day.
+ *
+ * @param other the other date-time to compare to, not null
+ * @return true if this is before the specified date-time
+ */
+ public default boolean isBefore(ChronoLocalDateTime other) {
+ long thisEpDay = this.toLocalDate().toEpochDay();
+ long otherEpDay = other.toLocalDate().toEpochDay();
+ return thisEpDay < otherEpDay ||
+ (thisEpDay == otherEpDay && this.toLocalTime().toNanoOfDay() < other.toLocalTime().toNanoOfDay());
+ }
+
+ /**
+ * Checks if this date-time is equal to the specified date-time ignoring the chronology.
+ *
+ * This method differs from the comparison in {@link #compareTo} in that it
+ * only compares the underlying date and time and not the chronology.
+ * This allows date-times in different calendar systems to be compared based
+ * on the time-line position.
+ *
+ * This default implementation performs the comparison based on the epoch-day
+ * and nano-of-day.
+ *
+ * @param other the other date-time to compare to, not null
+ * @return true if the underlying date-time is equal to the specified date-time on the timeline
+ */
+ public default boolean isEqual(ChronoLocalDateTime other) {
+ // Do the time check first, it is cheaper than computing EPOCH day.
+ return this.toLocalTime().toNanoOfDay() == other.toLocalTime().toNanoOfDay() &&
+ this.toLocalDate().toEpochDay() == other.toLocalDate().toEpochDay();
+ }
+
+ /**
+ * Checks if this date-time is equal to another date-time, including the chronology.
+ *
+ * Compares this date-time with another ensuring that the date-time and chronology are the same.
+ *
+ * @param obj the object to check, null returns false
+ * @return true if this is equal to the other date
+ */
+ @Override
+ boolean equals(Object obj);
+
+ /**
+ * A hash code for this date-time.
+ *
+ * @return a suitable hash code
+ */
+ @Override
+ int hashCode();
+
+ //-----------------------------------------------------------------------
+ /**
+ * Outputs this date-time as a {@code String}.
+ *
+ * The output will include the full local date-time and the chronology ID.
+ *
+ * @return a string representation of this date-time, not null
+ */
+ @Override
+ String toString();
+
+ /**
+ * Outputs this date-time as a {@code String} using the formatter.
+ *
+ * The default implementation must behave as follows:
+ *
- * // these two lines are equivalent, but the second approach is recommended
- * temporal = thisLocalDateTime.adjustInto(temporal);
- * temporal = temporal.with(thisLocalDateTime);
- *
- *
- *
- * Values #2 and #3 represent the same date-time on the time-line.
- * When two values represent the same date-time, the chronology ID is compared to distinguish them.
- * This step is needed to make the ordering "consistent with equals".
- *
- * return formatter.print(this);
- *
- *
- * @param formatter the formatter to use, not null
- * @return the formatted date-time string, not null
- * @throws DateTimeException if an error occurs during printing
- */
- public default String toString(DateTimeFormatter formatter) {
- Objects.requireNonNull(formatter, "formatter");
- return formatter.print(this);
- }
-}
--- /dev/null 2013-01-18 16:17:08.886776012 -0800
+++ new/src/share/classes/java/time/chrono/ChronoLocalDateTime.java 2013-02-08 10:48:08.000000000 -0800
@@ -0,0 +1,510 @@
+/*
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Copyright (c) 2007-2012, Stephen Colebourne & Michael Nascimento Santos
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * * Neither the name of JSR-310 nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package java.time.chrono;
+
+import static java.time.temporal.ChronoField.EPOCH_DAY;
+import static java.time.temporal.ChronoField.NANO_OF_DAY;
+import static java.time.temporal.ChronoUnit.NANOS;
+
+import java.time.DateTimeException;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoField;
+import java.time.temporal.Queries;
+import java.time.temporal.Temporal;
+import java.time.temporal.TemporalAccessor;
+import java.time.temporal.TemporalAdjuster;
+import java.time.temporal.TemporalAmount;
+import java.time.temporal.TemporalField;
+import java.time.temporal.TemporalQuery;
+import java.time.temporal.TemporalUnit;
+import java.time.zone.ZoneRules;
+import java.util.Comparator;
+import java.util.Objects;
+
+/**
+ * A date-time without a time-zone in an arbitrary chronology, intended
+ * for advanced globalization use cases.
+ * When to use this interface
+ * The design of the API encourages the use of {@code LocalDateTime} rather than this
+ * interface, even in the case where the application needs to deal with multiple
+ * calendar systems. The rationale for this is explored in detail in {@link ChronoLocalDate}.
+ * Specification for implementors
+ * This interface must be implemented with care to ensure other classes operate correctly.
+ * All implementations that can be instantiated must be final, immutable and thread-safe.
+ * Subclasses should be Serializable wherever possible.
+ *
+ * @param
+ * // these two lines are equivalent, but the second approach is recommended
+ * temporal = thisLocalDateTime.adjustInto(temporal);
+ * temporal = temporal.with(thisLocalDateTime);
+ *
+ *
+ *
+ * Values #2 and #3 represent the same date-time on the time-line.
+ * When two values represent the same date-time, the chronology ID is compared to distinguish them.
+ * This step is needed to make the ordering "consistent with equals".
+ *
+ * return formatter.format(this);
+ *
+ *
+ * @param formatter the formatter to use, not null
+ * @return the formatted date-time string, not null
+ * @throws DateTimeException if an error occurs during printing
+ */
+ public default String toString(DateTimeFormatter formatter) {
+ Objects.requireNonNull(formatter, "formatter");
+ return formatter.format(this);
+ }
+}