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java.lang.Objectorg.jfree.data.time.RegularTimePeriod
org.jfree.data.time.Quarter
Defines a quarter (in a given year). The range supported is Q1 1900 to Q4 9999.
This class is immutable, which is a requirement for all RegularTimePeriod
subclasses.
Field Summary | |
static int[] |
FIRST_MONTH_IN_QUARTER
The first month in each quarter. |
static int |
FIRST_QUARTER
Constant for quarter 1. |
static int[] |
LAST_MONTH_IN_QUARTER
The last month in each quarter. |
static int |
LAST_QUARTER
Constant for quarter 4. |
Fields inherited from class org.jfree.data.time.RegularTimePeriod |
DEFAULT_TIME_ZONE, WORKING_CALENDAR |
Constructor Summary | |
Quarter()
Constructs a new Quarter, based on the current system date/time. |
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Quarter(java.util.Date time)
Constructs a new Quarter, based on a date/time and the default time zone. |
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Quarter(java.util.Date time,
java.util.TimeZone zone)
Constructs a Quarter, based on a date/time and time zone. |
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Quarter(int quarter,
int year)
Constructs a new quarter. |
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Quarter(int quarter,
Year year)
Constructs a new quarter. |
Method Summary | |
int |
compareTo(java.lang.Object o1)
Returns an integer indicating the order of this Quarter object relative to the specified object: negative == before, zero == same, positive == after. |
boolean |
equals(java.lang.Object obj)
Tests the equality of this Quarter object to an arbitrary object. |
long |
getFirstMillisecond(java.util.Calendar calendar)
Returns the first millisecond in the Quarter, evaluated using the supplied calendar (which determines the time zone). |
long |
getLastMillisecond(java.util.Calendar calendar)
Returns the last millisecond of the Quarter, evaluated using the supplied calendar (which determines the time zone). |
int |
getQuarter()
Returns the quarter. |
long |
getSerialIndex()
Returns a serial index number for the quarter. |
Year |
getYear()
Returns the year. |
int |
hashCode()
Returns a hash code for this object instance. |
RegularTimePeriod |
next()
Returns the quarter following this one. |
static Quarter |
parseQuarter(java.lang.String s)
Parses the string argument as a quarter. |
RegularTimePeriod |
previous()
Returns the quarter preceding this one. |
java.lang.String |
toString()
Returns a string representing the quarter (e.g. |
Methods inherited from class org.jfree.data.time.RegularTimePeriod |
createInstance, downsize, getEnd, getFirstMillisecond, getFirstMillisecond, getLastMillisecond, getLastMillisecond, getMiddleMillisecond, getMiddleMillisecond, getMiddleMillisecond, getStart |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final int FIRST_QUARTER
public static final int LAST_QUARTER
public static final int[] FIRST_MONTH_IN_QUARTER
public static final int[] LAST_MONTH_IN_QUARTER
Constructor Detail |
public Quarter()
public Quarter(int quarter, int year)
year
- the year (1900 to 9999).quarter
- the quarter (1 to 4).public Quarter(int quarter, Year year)
quarter
- the quarter (1 to 4).year
- the year (1900 to 9999).public Quarter(java.util.Date time)
time
- the date/time.public Quarter(java.util.Date time, java.util.TimeZone zone)
time
- the date/time.zone
- the zone.Method Detail |
public int getQuarter()
public Year getYear()
public RegularTimePeriod previous()
previous
in class RegularTimePeriod
public RegularTimePeriod next()
next
in class RegularTimePeriod
public long getSerialIndex()
getSerialIndex
in class RegularTimePeriod
public boolean equals(java.lang.Object obj)
obj
- the object.
true
if quarter and year of this and the object are the same.public int hashCode()
The approach described by Joshua Bloch in "Effective Java" has been used here:
http://developer.java.sun.com/developer/Books/effectivejava/Chapter3.pdf
public int compareTo(java.lang.Object o1)
compareTo
in interface java.lang.Comparable
o1
- the object to compare
public java.lang.String toString()
toString
in class RegularTimePeriod
public long getFirstMillisecond(java.util.Calendar calendar)
getFirstMillisecond
in class RegularTimePeriod
calendar
- the calendar.
public long getLastMillisecond(java.util.Calendar calendar)
getLastMillisecond
in class RegularTimePeriod
calendar
- the calendar.
public static Quarter parseQuarter(java.lang.String s)
This method should accept the following formats: "YYYY-QN" and "QN-YYYY", where the "-" can be a space, a forward-slash (/), comma or a dash (-).
s
- A string representing the quarter.
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