org.joda.time.chrono
Class LimitChronology

java.lang.Object
  extended by org.joda.time.Chronology
      extended by org.joda.time.chrono.BaseChronology
          extended by org.joda.time.chrono.AssembledChronology
              extended by org.joda.time.chrono.LimitChronology
All Implemented Interfaces:
Serializable

public final class LimitChronology
extends AssembledChronology

Wraps another Chronology to impose limits on the range of instants that the fields within a Chronology may support. The limits are applied to both DateTimeFields and DurationFields.

Methods in DateTimeField and DurationField throw an IllegalArgumentException whenever given an input instant that is outside the limits or when an attempt is made to move an instant outside the limits.

LimitChronology is thread-safe and immutable.

Since:
1.0
Author:
Brian S O'Neill, Stephen Colebourne
See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.joda.time.chrono.AssembledChronology
AssembledChronology.Fields
 
Method Summary
protected  void assemble(AssembledChronology.Fields fields)
          Invoked by the constructor and after deserialization to allow subclasses to define all of its supported fields.
 boolean equals(Object obj)
          A limit chronology is only equal to a limit chronology with the same base chronology and limits.
 long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth, int millisOfDay)
          Returns a datetime millisecond instant, formed from the given year, month, day, and millisecond values.
 long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)
          Returns a datetime millisecond instant, formed from the given year, month, day, hour, minute, second, and millisecond values.
 long getDateTimeMillis(long instant, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)
          Returns a datetime millisecond instant, from from the given instant, hour, minute, second, and millisecond values.
static LimitChronology getInstance(Chronology base, ReadableDateTime lowerLimit, ReadableDateTime upperLimit)
          Wraps another chronology, with datetime limits.
 DateTime getLowerLimit()
          Returns the inclusive lower limit instant.
 DateTime getUpperLimit()
          Returns the inclusive upper limit instant.
 int hashCode()
          A suitable hashcode for the chronology.
 String toString()
          A debugging string for the chronology.
 Chronology withUTC()
          If this LimitChronology is already UTC, then this is returned.
 Chronology withZone(DateTimeZone zone)
          If this LimitChronology has the same time zone as the one given, then this is returned.
 
Methods inherited from class org.joda.time.chrono.AssembledChronology
centuries, centuryOfEra, clockhourOfDay, clockhourOfHalfday, dayOfMonth, dayOfWeek, dayOfYear, days, era, eras, getBase, getParam, getZone, halfdayOfDay, halfdays, hourOfDay, hourOfHalfday, hours, millis, millisOfDay, millisOfSecond, minuteOfDay, minuteOfHour, minutes, monthOfYear, months, secondOfDay, secondOfMinute, seconds, weekOfWeekyear, weeks, weekyear, weekyearOfCentury, weekyears, year, yearOfCentury, yearOfEra, years
 
Methods inherited from class org.joda.time.chrono.BaseChronology
add, add, get, get, get, set, validate
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Method Detail

getInstance

public static LimitChronology getInstance(Chronology base,
                                          ReadableDateTime lowerLimit,
                                          ReadableDateTime upperLimit)
Wraps another chronology, with datetime limits. When withUTC or withZone is called, the returned LimitChronology instance has the same limits, except they are time zone adjusted.

Parameters:
base - base chronology to wrap
lowerLimit - inclusive lower limit, or null if none
upperLimit - exclusive upper limit, or null if none
Throws:
IllegalArgumentException - if chronology is null or limits are invalid

getLowerLimit

public DateTime getLowerLimit()
Returns the inclusive lower limit instant.

Returns:
lower limit

getUpperLimit

public DateTime getUpperLimit()
Returns the inclusive upper limit instant.

Returns:
upper limit

withUTC

public Chronology withUTC()
If this LimitChronology is already UTC, then this is returned. Otherwise, a new instance is returned, with the limits adjusted to the new time zone.

Specified by:
withUTC in class BaseChronology
Returns:
a version of this chronology that ignores time zones

withZone

public Chronology withZone(DateTimeZone zone)
If this LimitChronology has the same time zone as the one given, then this is returned. Otherwise, a new instance is returned, with the limits adjusted to the new time zone.

Specified by:
withZone in class BaseChronology
Parameters:
zone - to use, or default if null
Returns:
a version of this chronology with a specific time zone
See Also:
ZonedChronology

getDateTimeMillis

public long getDateTimeMillis(int year,
                              int monthOfYear,
                              int dayOfMonth,
                              int millisOfDay)
                       throws IllegalArgumentException
Description copied from class: BaseChronology
Returns a datetime millisecond instant, formed from the given year, month, day, and millisecond values. The set of given values must refer to a valid datetime, or else an IllegalArgumentException is thrown.

The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.

Overrides:
getDateTimeMillis in class AssembledChronology
Parameters:
year - year to use
monthOfYear - month to use
dayOfMonth - day of month to use
millisOfDay - millisecond to use
Returns:
millisecond instant from 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if the values are invalid

getDateTimeMillis

public long getDateTimeMillis(int year,
                              int monthOfYear,
                              int dayOfMonth,
                              int hourOfDay,
                              int minuteOfHour,
                              int secondOfMinute,
                              int millisOfSecond)
                       throws IllegalArgumentException
Description copied from class: BaseChronology
Returns a datetime millisecond instant, formed from the given year, month, day, hour, minute, second, and millisecond values. The set of given values must refer to a valid datetime, or else an IllegalArgumentException is thrown.

The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.

Overrides:
getDateTimeMillis in class AssembledChronology
Parameters:
year - year to use
monthOfYear - month to use
dayOfMonth - day of month to use
hourOfDay - hour to use
minuteOfHour - minute to use
secondOfMinute - second to use
millisOfSecond - millisecond to use
Returns:
millisecond instant from 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if the values are invalid

getDateTimeMillis

public long getDateTimeMillis(long instant,
                              int hourOfDay,
                              int minuteOfHour,
                              int secondOfMinute,
                              int millisOfSecond)
                       throws IllegalArgumentException
Description copied from class: BaseChronology
Returns a datetime millisecond instant, from from the given instant, hour, minute, second, and millisecond values. The set of given values must refer to a valid datetime, or else an IllegalArgumentException is thrown.

The default implementation calls upon separate DateTimeFields to determine the result. Subclasses are encouraged to provide a more efficient implementation.

Overrides:
getDateTimeMillis in class AssembledChronology
Parameters:
instant - instant to start from
hourOfDay - hour to use
minuteOfHour - minute to use
secondOfMinute - second to use
millisOfSecond - millisecond to use
Returns:
millisecond instant from 1970-01-01T00:00:00Z
Throws:
IllegalArgumentException - if the values are invalid

assemble

protected void assemble(AssembledChronology.Fields fields)
Description copied from class: AssembledChronology
Invoked by the constructor and after deserialization to allow subclasses to define all of its supported fields. All unset fields default to unsupported instances.

Specified by:
assemble in class AssembledChronology
Parameters:
fields - container of fields

equals

public boolean equals(Object obj)
A limit chronology is only equal to a limit chronology with the same base chronology and limits.

Overrides:
equals in class Object
Parameters:
obj - the object to compare to
Returns:
true if equal
Since:
1.4

hashCode

public int hashCode()
A suitable hashcode for the chronology.

Overrides:
hashCode in class Object
Returns:
the hashcode
Since:
1.4

toString

public String toString()
A debugging string for the chronology.

Specified by:
toString in class BaseChronology
Returns:
the debugging string


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