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Java Source Code / Java Documentation » Chart » jfreechart » org.jfree.data.time 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.jfree.data.time.RegularTimePeriod
      org.jfree.data.time.Hour

Hour
public class Hour extends RegularTimePeriod implements Serializable(Code)
Represents an hour in a specific day. This class is immutable, which is a requirement for all RegularTimePeriod subclasses.


Field Summary
final public static  intFIRST_HOUR_IN_DAY
     Useful constant for the first hour in the day.
final public static  intLAST_HOUR_IN_DAY
     Useful constant for the last hour in the day.

Constructor Summary
public  Hour()
     Constructs a new Hour, based on the system date/time.
public  Hour(int hour, Day day)
     Constructs a new Hour.
public  Hour(int hour, int day, int month, int year)
     Creates a new hour.
public  Hour(Date time)
     Constructs a new Hour, based on the supplied date/time.
public  Hour(Date time, TimeZone zone)
     Constructs a new Hour, based on the supplied date/time evaluated in the specified time zone.

Method Summary
public  intcompareTo(Object o1)
     Returns an integer indicating the order of this Hour object relative to the specified object: negative == before, zero == same, positive == after.
Parameters:
  o1 - the object to compare.
public  booleanequals(Object obj)
     Tests the equality of this object against an arbitrary Object.

This method will return true ONLY if the object is an Hour object representing the same hour as this instance.
Parameters:
  obj - the object to compare (null permitted).

public  DaygetDay()
     Returns the day in which this hour falls.
public  intgetDayOfMonth()
     Returns the day-of-the-month in which this hour falls.
public  longgetFirstMillisecond()
     Returns the first millisecond of the hour.
public  longgetFirstMillisecond(Calendar calendar)
     Returns the first millisecond of the hour.
Parameters:
  calendar - the calendar/timezone (null not permitted).
public  intgetHour()
     Returns the hour.
public  longgetLastMillisecond()
     Returns the last millisecond of the hour.
public  longgetLastMillisecond(Calendar calendar)
     Returns the last millisecond of the hour.
Parameters:
  calendar - the calendar/timezone (null not permitted).
public  intgetMonth()
     Returns the month in which this hour falls.
public  longgetSerialIndex()
     Returns a serial index number for the hour.
public  intgetYear()
     Returns the year in which this hour falls.
public  inthashCode()
     Returns a hash code for this object instance.
public  RegularTimePeriodnext()
     Returns the hour following this one.
public static  HourparseHour(String s)
     Creates an Hour instance by parsing a string.
public  voidpeg(Calendar calendar)
     Recalculates the start date/time and end date/time for this time period relative to the supplied calendar (which incorporates a time zone).
public  RegularTimePeriodprevious()
     Returns the hour preceding this one.

Field Detail
FIRST_HOUR_IN_DAY
final public static int FIRST_HOUR_IN_DAY(Code)
Useful constant for the first hour in the day.



LAST_HOUR_IN_DAY
final public static int LAST_HOUR_IN_DAY(Code)
Useful constant for the last hour in the day.




Constructor Detail
Hour
public Hour()(Code)
Constructs a new Hour, based on the system date/time.



Hour
public Hour(int hour, Day day)(Code)
Constructs a new Hour.
Parameters:
  hour - the hour (in the range 0 to 23).
Parameters:
  day - the day (null not permitted).



Hour
public Hour(int hour, int day, int month, int year)(Code)
Creates a new hour.
Parameters:
  hour - the hour (0-23).
Parameters:
  day - the day (1-31).
Parameters:
  month - the month (1-12).
Parameters:
  year - the year (1900-9999).



Hour
public Hour(Date time)(Code)
Constructs a new Hour, based on the supplied date/time.
Parameters:
  time - the date-time (null not permitted).



Hour
public Hour(Date time, TimeZone zone)(Code)
Constructs a new Hour, based on the supplied date/time evaluated in the specified time zone.
Parameters:
  time - the date-time (null not permitted).
Parameters:
  zone - the time zone (null not permitted).




Method Detail
compareTo
public int compareTo(Object o1)(Code)
Returns an integer indicating the order of this Hour object relative to the specified object: negative == before, zero == same, positive == after.
Parameters:
  o1 - the object to compare. negative == before, zero == same, positive == after.



equals
public boolean equals(Object obj)(Code)
Tests the equality of this object against an arbitrary Object.

This method will return true ONLY if the object is an Hour object representing the same hour as this instance.
Parameters:
  obj - the object to compare (null permitted). true if the hour and day value of the objectis the same as this.




getDay
public Day getDay()(Code)
Returns the day in which this hour falls. The day.



getDayOfMonth
public int getDayOfMonth()(Code)
Returns the day-of-the-month in which this hour falls. The day-of-the-month.



getFirstMillisecond
public long getFirstMillisecond()(Code)
Returns the first millisecond of the hour. This will be determined relative to the time zone specified in the constructor, or in the calendar instance passed in the most recent call to the Hour.peg(Calendar) method. The first millisecond of the hour.
See Also:   Hour.getLastMillisecond()



getFirstMillisecond
public long getFirstMillisecond(Calendar calendar)(Code)
Returns the first millisecond of the hour.
Parameters:
  calendar - the calendar/timezone (null not permitted). The first millisecond.
throws:
  NullPointerException - if calendar is null.



getHour
public int getHour()(Code)
Returns the hour. The hour (0 <= hour <= 23).



getLastMillisecond
public long getLastMillisecond()(Code)
Returns the last millisecond of the hour. This will be determined relative to the time zone specified in the constructor, or in the calendar instance passed in the most recent call to the Hour.peg(Calendar) method. The last millisecond of the hour.
See Also:   Hour.getFirstMillisecond()



getLastMillisecond
public long getLastMillisecond(Calendar calendar)(Code)
Returns the last millisecond of the hour.
Parameters:
  calendar - the calendar/timezone (null not permitted). The last millisecond.
throws:
  NullPointerException - if calendar is null.



getMonth
public int getMonth()(Code)
Returns the month in which this hour falls. The month.



getSerialIndex
public long getSerialIndex()(Code)
Returns a serial index number for the hour. The serial index number.



getYear
public int getYear()(Code)
Returns the year in which this hour falls. The year.



hashCode
public int hashCode()(Code)
Returns a hash code for this object instance. The approach described by Joshua Bloch in "Effective Java" has been used here:

http://developer.java.sun.com/developer/Books/effectivejava /Chapter3.pdf A hash code.




next
public RegularTimePeriod next()(Code)
Returns the hour following this one. The hour following this one.



parseHour
public static Hour parseHour(String s)(Code)
Creates an Hour instance by parsing a string. The string is assumed to be in the format "YYYY-MM-DD HH", perhaps with leading or trailing whitespace.
Parameters:
  s - the hour string to parse. null if the string is not parseable, the hour otherwise.



peg
public void peg(Calendar calendar)(Code)
Recalculates the start date/time and end date/time for this time period relative to the supplied calendar (which incorporates a time zone).
Parameters:
  calendar - the calendar (null not permitted).
since:
   1.0.3



previous
public RegularTimePeriod previous()(Code)
Returns the hour preceding this one. The hour preceding this one.



Fields inherited from org.jfree.data.time.RegularTimePeriod
final public static TimeZone DEFAULT_TIME_ZONE(Code)(Java Doc)
final public static Calendar WORKING_CALENDAR(Code)(Java Doc)

Methods inherited from org.jfree.data.time.RegularTimePeriod
public static RegularTimePeriod createInstance(Class c, Date millisecond, TimeZone zone)(Code)(Java Doc)
public static Class downsize(Class c)(Code)(Java Doc)
public Date getEnd()(Code)(Java Doc)
abstract public long getFirstMillisecond()(Code)(Java Doc)
public long getFirstMillisecond(TimeZone zone)(Code)(Java Doc)
abstract public long getFirstMillisecond(Calendar calendar)(Code)(Java Doc)
abstract public long getLastMillisecond()(Code)(Java Doc)
public long getLastMillisecond(TimeZone zone)(Code)(Java Doc)
abstract public long getLastMillisecond(Calendar calendar)(Code)(Java Doc)
public long getMiddleMillisecond()(Code)(Java Doc)
public long getMiddleMillisecond(TimeZone zone)(Code)(Java Doc)
public long getMiddleMillisecond(Calendar calendar)(Code)(Java Doc)
abstract public long getSerialIndex()(Code)(Java Doc)
public Date getStart()(Code)(Java Doc)
abstract public RegularTimePeriod next()(Code)(Java Doc)
abstract public void peg(Calendar calendar)(Code)(Java Doc)
abstract public RegularTimePeriod previous()(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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