org.apache.xmlbeans
Class GDurationBuilder

java.lang.Object
  extended byorg.apache.xmlbeans.GDurationBuilder
All Implemented Interfaces:
GDurationSpecification, Serializable

public class GDurationBuilder
extends Object
implements GDurationSpecification, Serializable

Used to build GDurations.

See Also:
Serialized Form

Constructor Summary
GDurationBuilder()
          Constructs an empty GDurationBuilder representing zero seconds.
GDurationBuilder(GDurationSpecification gDuration)
          Constructs a GDurationBuilder from another GDurationBuilderSpecification.
GDurationBuilder(int sign, int year, int month, int day, int hour, int minute, int second, BigDecimal fraction)
          Constructs a GDurationBuilder with the specified sign, year, month, day, hours, minutes, seconds, and optional fractional seconds.
GDurationBuilder(String s)
          Constructs a GDuration from a lexical representation.
 
Method Summary
 void addGDuration(GDurationSpecification duration)
          Adds to this duration.
 Object clone()
          Builds another GDurationBuilder with the same value as this one.
 int compareToGDuration(GDurationSpecification duration)
          Comparison to another GDuration.
 int getDay()
          Gets the day-of-month component.
 BigDecimal getFraction()
          Gets the fraction-of-second.
 int getHour()
          Gets the hour-of-day component.
 int getMinute()
          Gets the minute-of-hour component.
 int getMonth()
          Gets the month-of-year component.
 int getSecond()
          Gets the second-of-minute component.
 int getSign()
          Returns the sign of the duration: +1 is forwards and -1 is backwards in time.
 int getYear()
          Gets the year component.
 boolean isImmutable()
          All GDuration instances return true.
 boolean isValid()
          Returns true if all of the individual components of the duration are nonnegative.
 void normalize()
          Normalize a duration value.
 void setDay(int day)
          Sets the day component.
 void setFraction(BigDecimal fraction)
          Sets the fraction-of-second component.
 void setHour(int hour)
          Sets the hour component.
 void setMinute(int minute)
          Sets the minute component.
 void setMonth(int month)
          Sets the month component.
 void setSecond(int second)
          Sets the second component.
 void setSign(int sign)
          Sets the sign.
 void setYear(int year)
          Sets the year component.
 void subtractGDuration(GDurationSpecification duration)
          Subtracts from this duration.
 GDuration toGDuration()
          Builds a GDuration from this GDurationBuilder.
 String toString()
          The natural string representation of the duration.
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

GDurationBuilder

public GDurationBuilder()
Constructs an empty GDurationBuilder representing zero seconds.


GDurationBuilder

public GDurationBuilder(String s)
Constructs a GDuration from a lexical representation.


GDurationBuilder

public GDurationBuilder(int sign,
                        int year,
                        int month,
                        int day,
                        int hour,
                        int minute,
                        int second,
                        BigDecimal fraction)
Constructs a GDurationBuilder with the specified sign, year, month, day, hours, minutes, seconds, and optional fractional seconds.

Parameters:
sign - +1 for a positive duration, -1 for a negative duration
Throws:
IllegalArgumentException - if the sign is not 1 or -1

GDurationBuilder

public GDurationBuilder(GDurationSpecification gDuration)
Constructs a GDurationBuilder from another GDurationBuilderSpecification.

Method Detail

clone

public Object clone()
Builds another GDurationBuilder with the same value as this one.


toGDuration

public GDuration toGDuration()
Builds a GDuration from this GDurationBuilder.


addGDuration

public void addGDuration(GDurationSpecification duration)
Adds to this duration. Does a fieldwise add, with no normalization.


subtractGDuration

public void subtractGDuration(GDurationSpecification duration)
Subtracts from this duration. Does a fieldwise subtraction, with no normalization.


setSign

public final void setSign(int sign)
Sets the sign.


setYear

public void setYear(int year)
Sets the year component.


setMonth

public void setMonth(int month)
Sets the month component.


setDay

public void setDay(int day)
Sets the day component.


setHour

public void setHour(int hour)
Sets the hour component.


setMinute

public void setMinute(int minute)
Sets the minute component.


setSecond

public void setSecond(int second)
Sets the second component.


setFraction

public void setFraction(BigDecimal fraction)
Sets the fraction-of-second component.


isImmutable

public final boolean isImmutable()
All GDuration instances return true.

Specified by:
isImmutable in interface GDurationSpecification

getSign

public final int getSign()
Returns the sign of the duration: +1 is forwards and -1 is backwards in time. This value does not necessarily reflect the true direction of the duration if the duration is not normalized or not normalizable.

Specified by:
getSign in interface GDurationSpecification

getYear

public final int getYear()
Gets the year component.

Specified by:
getYear in interface GDurationSpecification

getMonth

public final int getMonth()
Gets the month-of-year component.

Specified by:
getMonth in interface GDurationSpecification

getDay

public final int getDay()
Gets the day-of-month component.

Specified by:
getDay in interface GDurationSpecification

getHour

public final int getHour()
Gets the hour-of-day component.

Specified by:
getHour in interface GDurationSpecification

getMinute

public final int getMinute()
Gets the minute-of-hour component.

Specified by:
getMinute in interface GDurationSpecification

getSecond

public final int getSecond()
Gets the second-of-minute component.

Specified by:
getSecond in interface GDurationSpecification

getFraction

public BigDecimal getFraction()
Gets the fraction-of-second. Range from 0 (inclusive) to 1 (exclusive).

Specified by:
getFraction in interface GDurationSpecification

isValid

public boolean isValid()
Returns true if all of the individual components of the duration are nonnegative.

Specified by:
isValid in interface GDurationSpecification

normalize

public void normalize()
Normalize a duration value. This ensures that months, hours, minutes, seconds, and fractions are positive and within the ranges 0..11, 0..23, 0..59, etc. Negative durations are indicated by a negative sign rather than negative components.

Most duration specifications can be normalized to valid durations with all positive components, but not all of them can.

The only situations which cannot be normalized are where the year/month and the day/hour/minute/second offsets are of opposite sign. Days cannot be carried into months since the length of a Gregorian month is variable depending on when the duration is applied. In these cases, this method normalizes the components so that "day" is the only negative component.


compareToGDuration

public final int compareToGDuration(GDurationSpecification duration)
Comparison to another GDuration. Two instances are incomparable if they have different amounts of information.

Specified by:
compareToGDuration in interface GDurationSpecification

toString

public String toString()
The natural string representation of the duration.

Any components that are zero are omitted. Note that if the duration is invalid, i.e., it has negative components, those negative components are serialized out here. To check for validity, use the isValid() method; and to normalize most durations to a valid form use the normalize() method.