net.aerith.misao.util
Class JulianDay

java.lang.Object
  |
  +--net.aerith.misao.util.JulianDay

public class JulianDay

extends java.lang.Object

The JulianDay represents a Julian Day.

It keeps the date and time value in two styles. One is the Julian Day in double. Another one is the set of year, month and day in int, int and double repsectively.

Field Summary

protected double	day The day value of this date and time.
static int	FORMAT_DECIMALDAY_100000TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45678".
static int	FORMAT_DECIMALDAY_10000TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23.4567".
static int	FORMAT_DECIMALDAY_1000TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23.456".
static int	FORMAT_DECIMALDAY_100TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45".
static int	FORMAT_DECIMALDAY_10TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23.4".
static int	FORMAT_DECIMALDAY_1TH The number of output accuracy type, which represents to output such a string as "2000 Jan 23".
static int	FORMAT_DEFAULT The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45678".
static int	FORMAT_JD The number of type to output month, which represents to output the Julian Day such as "2451234.12345".
static int	FORMAT_MONTH_IN_CODE The number of type to output month, which represents to output the code of month such as "2000 Jan 23".
static int	FORMAT_MONTH_IN_FULL_SPELL The number of type to output month, which represents to output the full spell name such as "2000 January 23".
static int	FORMAT_MONTH_IN_NUMBER The number of type to output month, which represents to output the month in number such as "2000 01 23".
static int	FORMAT_MONTH_IN_NUMBER_WITHOUT_SPACE The number of type to output month, which represents to output the month in number without space such as "20000123".
static int	FORMAT_MONTH_IN_REDUCED The number of type to output month, which represents to output the reduced name such as "2000 Jan.
static int	FORMAT_TO_DAY The number of output accuracy type, which represents to output such a string as "2000 Jan 23".
static int	FORMAT_TO_HOUR The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01h".
static int	FORMAT_TO_MINUTE The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01:23".
static int	FORMAT_TO_SECOND The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01:23:45".
protected double	julian_day The value of this date and time in Julian Day.
protected int	month The month value of this date and time.
protected static java.lang.String[]	month_code The output codes of months.
protected static java.lang.String[]	month_full_name The full spell output strings of months.
protected static java.lang.String[]	month_reduced_name The reduced output strings of months.
protected int	year The year value of this date and time.

Constructor Summary

JulianDay()
Constructs a JulianDay at J2000.0.

JulianDay(double initial_jd)
Constructs a JulianDay of the specified Julian Day.

JulianDay(int initial_year, int initial_month, double initial_day)
Constructs a JulianDay of the specified year, month and day.

JulianDay(int initial_year, int initial_month, int initial_day, int initial_hour, int initial_minute, double initial_second)
Constructs a JulianDay of the specified year, month, day, hour, minute, and second.

Method Summary

static JulianDay	create(java.util.Date date) Creates a JulianDay object from the specified local time considering the time zone.
static JulianDay	create(java.lang.String string) Creates a JulianDay object from the specified string.
static int	getAccuracy(java.lang.String string) Gets a accuracy of the specified date string.
int	getDay() Gets the day.
double	getDecimalDay() Gets the day and time in day.
static int	getEquivalentAccuracy(int date_accuracy) Gets the equivalent accuracy of the specified accuracy.
static java.lang.String	getFullSpellMonthString(int m) Gets the full spell name of the specified month.
int	getHour() Gets the hour.
double	getJD() Gets date and time value of this object as Julian Day.
int	getMinute() Gets the minute.
int	getMonth() Gets the month.
static int	getMonth(java.lang.String month) Gets the month of the specified month string.
static java.lang.String	getMonthCode(int m) Gets the code of the specified month.
java.lang.String	getOutputString(int month_format, int date_accuracy) Returns a string representation of the state of this object in the specified format.
static java.lang.String	getReducedMonthString(int m) Gets the reduced name of the specified month.
int	getSecond() Gets the second.
int	getYear() Gets the year.
static boolean	isDecimalDay(int date_accuracy) Returns true when the specified accuracy represents decimal day.
JulianDay	round(int date_accuracy) Rounds this day to the accuracy of the specified format and creates a new JulianDay object.
protected void	updateYearMonthDay() Converts the Julian Day of this object into year, month and day, and sets them into the member fields of this object.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

julian_day

protected double julian_day

The value of this date and time in Julian Day.

year

protected int year

The year value of this date and time.

month

protected int month

The month value of this date and time.

day

protected double day

The day value of this date and time.

month_full_name

protected static final java.lang.String[] month_full_name

The full spell output strings of months.

month_reduced_name

protected static final java.lang.String[] month_reduced_name

The reduced output strings of months.

month_code

protected static final java.lang.String[] month_code

The output codes of months.

FORMAT_DEFAULT

public static final int FORMAT_DEFAULT

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45678".

FORMAT_DECIMALDAY_100000TH

public static final int FORMAT_DECIMALDAY_100000TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45678".

FORMAT_DECIMALDAY_10000TH

public static final int FORMAT_DECIMALDAY_10000TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.4567".

FORMAT_DECIMALDAY_1000TH

public static final int FORMAT_DECIMALDAY_1000TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.456".

FORMAT_DECIMALDAY_100TH

public static final int FORMAT_DECIMALDAY_100TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.45".

FORMAT_DECIMALDAY_10TH

public static final int FORMAT_DECIMALDAY_10TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23.4".

FORMAT_DECIMALDAY_1TH

public static final int FORMAT_DECIMALDAY_1TH

The number of output accuracy type, which represents to output such a string as "2000 Jan 23".

FORMAT_TO_SECOND

public static final int FORMAT_TO_SECOND

The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01:23:45".

FORMAT_TO_MINUTE

public static final int FORMAT_TO_MINUTE

The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01:23".

FORMAT_TO_HOUR

public static final int FORMAT_TO_HOUR

The number of output accuracy type, which represents to output such a string as "2000 Jan 23 01h".

FORMAT_TO_DAY

public static final int FORMAT_TO_DAY

The number of output accuracy type, which represents to output such a string as "2000 Jan 23".

FORMAT_MONTH_IN_FULL_SPELL

public static final int FORMAT_MONTH_IN_FULL_SPELL

The number of type to output month, which represents to output the full spell name such as "2000 January 23".

FORMAT_MONTH_IN_REDUCED

public static final int FORMAT_MONTH_IN_REDUCED

The number of type to output month, which represents to output the reduced name such as "2000 Jan. 23".

FORMAT_MONTH_IN_CODE

public static final int FORMAT_MONTH_IN_CODE

The number of type to output month, which represents to output the code of month such as "2000 Jan 23".

FORMAT_MONTH_IN_NUMBER

public static final int FORMAT_MONTH_IN_NUMBER

The number of type to output month, which represents to output the month in number such as "2000 01 23".

FORMAT_MONTH_IN_NUMBER_WITHOUT_SPACE

public static final int FORMAT_MONTH_IN_NUMBER_WITHOUT_SPACE

The number of type to output month, which represents to output the month in number without space such as "20000123".

FORMAT_JD

public static final int FORMAT_JD

The number of type to output month, which represents to output the Julian Day such as "2451234.12345".

Constructor Detail

JulianDay

public JulianDay()

Constructs a JulianDay at J2000.0.

JulianDay

public JulianDay(double initial_jd)

Constructs a JulianDay of the specified Julian Day.

Parameters:

initial_jd - the Julian Day.

JulianDay

public JulianDay(int initial_year,
                 int initial_month,
                 double initial_day)

Constructs a JulianDay of the specified year, month and day.

Parameters:

initial_year - the year of the date and time to construct.

initial_month - the month of the date and time to construct.

initial_day - the day of the date and time to construct.

JulianDay

public JulianDay(int initial_year,
                 int initial_month,
                 int initial_day,
                 int initial_hour,
                 int initial_minute,
                 double initial_second)

Constructs a JulianDay of the specified year, month, day, hour, minute, and second.

Parameters:

initial_year - the year of the date and time to construct.

initial_month - the month of the date and time to construct.

initial_day - the day of the date and time to construct.

initial_hour - the hour of the date and time to construct.

initial_minute - the minute of the date and time to construct.

initial_second - the second of the date and time to construct.

Method Detail

create

public static JulianDay create(java.util.Date date)

Creates a JulianDay object from the specified local time considering the time zone.

Parameters:

date - the Date object of the local time.

Returns:

the new JulianDay object.

create

public static JulianDay create(java.lang.String string)

Creates a JulianDay object from the specified string.

Parameters:

string - the string which represents the date and time.

Returns:

the new JulianDay object.

getAccuracy

public static int getAccuracy(java.lang.String string)

Gets a accuracy of the specified date string.

Parameters:

string - the string which represents the date and time.

Returns:

the format number of the date accuracy.

updateYearMonthDay

protected void updateYearMonthDay()

Converts the Julian Day of this object into year, month and day, and sets them into the member fields of this object.

getJD

public double getJD()

Gets date and time value of this object as Julian Day.

Returns:

the Julian Day.

getYear

public int getYear()

Gets the year.

Returns:

the year.

getMonth

public int getMonth()

Gets the month.

Returns:

the month.

getDay

public int getDay()

Gets the day.

Returns:

the day.

getDecimalDay

public double getDecimalDay()

Gets the day and time in day.

Returns:

the day and time in day.

getHour

public int getHour()

Gets the hour.

Returns:

the hour.

getMinute

public int getMinute()

Gets the minute.

Returns:

the minute.

getSecond

public int getSecond()

Gets the second.

Returns:

the second.

round

public JulianDay round(int date_accuracy)

Rounds this day to the accuracy of the specified format and creates a new JulianDay object.

Parameters:

date_accuracy - the number of accuracy.

Returns:

the rounded day.

getFullSpellMonthString

public static java.lang.String getFullSpellMonthString(int m)

Gets the full spell name of the specified month.

Parameters:

m - the month between 1 and 12.

Returns:

the full spell name of the specified month.

getReducedMonthString

public static java.lang.String getReducedMonthString(int m)

Gets the reduced name of the specified month.

Parameters:

m - the month between 1 and 12.

Returns:

the reduced name of the specified month.

getMonthCode

public static java.lang.String getMonthCode(int m)

Gets the code of the specified month.

Parameters:

m - the month between 1 and 12.

Returns:

the code of the specified month.

getMonth

public static int getMonth(java.lang.String month)
                    throws java.util.NoSuchElementException

Gets the month of the specified month string.

Parameters:

month - the month string.

Returns:

the month between 1 and 12.

Throws:

java.util.NoSuchElementException - if the specified code does not much any month.

isDecimalDay

public static boolean isDecimalDay(int date_accuracy)

Returns true when the specified accuracy represents decimal day.

Parameters:

date_accuracy - the format number of the accuracy.

Returns:

true when the specified accuracy represents decimal day.

getEquivalentAccuracy

public static int getEquivalentAccuracy(int date_accuracy)

Gets the equivalent accuracy of the specified accuracy.

Parameters:

date_accuracy - the format number of the accuracy.

Returns:

the format number of the equivalent accuracy.

getOutputString

public java.lang.String getOutputString(int month_format,
                                        int date_accuracy)

Returns a string representation of the state of this object in the specified format.

Parameters:

month_format - the number of format to output month.

date_accuracy - the number of accuracy.

Returns:

a string representation of the state of this object.