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java.lang.Object org.joda.time.DurationField org.joda.time.field.BaseDurationField org.joda.time.field.DecoratedDurationField org.joda.time.field.ScaledDurationField
public class ScaledDurationField
Scales a DurationField such that it's unit millis becomes larger in magnitude.
ScaledDurationField is threadsafe and immutable.
PreciseDurationField
,
Serialized FormConstructor Summary  

ScaledDurationField(DurationField field,
DurationFieldType type,
int scalar)
Constructor 
Method Summary  

long 
add(long instant,
int value)
Adds a duration value (which may be negative) to the instant. 
long 
add(long instant,
long value)
Adds a duration value (which may be negative) to the instant. 
boolean 
equals(Object obj)
Compares this duration field to another. 
int 
getDifference(long minuendInstant,
long subtrahendInstant)
Computes the difference between two instants, as measured in the units of this field. 
long 
getDifferenceAsLong(long minuendInstant,
long subtrahendInstant)
Computes the difference between two instants, as measured in the units of this field. 
long 
getMillis(int value)
Get the millisecond duration of this field from its value, which is approximate if this field is imprecise. 
long 
getMillis(int value,
long instant)
Get the millisecond duration of this field from its value relative to an instant. 
long 
getMillis(long value)
Get the millisecond duration of this field from its value, which is approximate if this field is imprecise. 
long 
getMillis(long value,
long instant)
Get the millisecond duration of this field from its value relative to an instant. 
int 
getScalar()
Returns the scalar applied, in the field's units. 
long 
getUnitMillis()
Returns the amount of milliseconds per unit value of this field. 
int 
getValue(long duration)
Get the value of this field from the milliseconds, which is approximate if this field is imprecise. 
int 
getValue(long duration,
long instant)
Get the value of this field from the milliseconds relative to an instant. 
long 
getValueAsLong(long duration)
Get the value of this field from the milliseconds, which is approximate if this field is imprecise. 
long 
getValueAsLong(long duration,
long instant)
Get the value of this field from the milliseconds relative to an instant. 
int 
hashCode()
Gets a hash code for this instance. 
Methods inherited from class org.joda.time.field.DecoratedDurationField 

getWrappedField, isPrecise 
Methods inherited from class org.joda.time.field.BaseDurationField 

compareTo, getName, getType, isSupported, toString 
Methods inherited from class org.joda.time.DurationField 

subtract, subtract 
Methods inherited from class java.lang.Object 

clone, finalize, getClass, notify, notifyAll, wait, wait, wait 
Constructor Detail 

public ScaledDurationField(DurationField field, DurationFieldType type, int scalar)
field
 the field to wrap, like "year()".type
 the type this field will actually usescalar
 scalar, such as 100 years in a century
IllegalArgumentException
 if scalar is zero or one.Method Detail 

public int getValue(long duration)
BaseDurationField
getValue
in class BaseDurationField
duration
 the milliseconds to query, which may be negative
public long getValueAsLong(long duration)
BaseDurationField
getValueAsLong
in class BaseDurationField
duration
 the milliseconds to query, which may be negative
public int getValue(long duration, long instant)
BaseDurationField
If the milliseconds is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
The default implementation returns
Utils.safeToInt(getAsLong(millisDuration, instant))
.
getValue
in class BaseDurationField
duration
 the milliseconds to query, which may be negativeinstant
 the start instant to calculate relative to
public long getValueAsLong(long duration, long instant)
DurationField
If the millisecond duration is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
getValueAsLong
in class DecoratedDurationField
duration
 the milliseconds to query, which may be negativeinstant
 the start instant to calculate relative to
public long getMillis(int value)
BaseDurationField
getMillis
in class BaseDurationField
value
 the value of the field, which may be negative
public long getMillis(long value)
BaseDurationField
getMillis
in class BaseDurationField
value
 the value of the field, which may be negative
public long getMillis(int value, long instant)
DurationField
If the value is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
getMillis
in class DecoratedDurationField
value
 the value of the field, which may be negativeinstant
 the instant to calculate relative to
public long getMillis(long value, long instant)
DurationField
If the value is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
getMillis
in class DecoratedDurationField
value
 the value of the field, which may be negativeinstant
 the instant to calculate relative to
public long add(long instant, int value)
DurationField
add
in class DecoratedDurationField
instant
 the milliseconds from 19700101T00:00:00Z to add tovalue
 the value to add, in the units of the field
public long add(long instant, long value)
DurationField
add
in class DecoratedDurationField
instant
 the milliseconds from 19700101T00:00:00Z to add tovalue
 the value to add, in the units of the field
public int getDifference(long minuendInstant, long subtrahendInstant)
DurationField
long instant = ... int v = ... int age = getDifference(add(instant, v), instant);The value 'age' is the same as the value 'v'.
getDifference
in class BaseDurationField
minuendInstant
 the milliseconds from 19700101T00:00:00Z to
subtract fromsubtrahendInstant
 the milliseconds from 19700101T00:00:00Z to
subtract off the minuend
public long getDifferenceAsLong(long minuendInstant, long subtrahendInstant)
DurationField
long instant = ... long v = ... long age = getDifferenceAsLong(add(instant, v), instant);The value 'age' is the same as the value 'v'.
getDifferenceAsLong
in class DecoratedDurationField
minuendInstant
 the milliseconds from 19700101T00:00:00Z to
subtract fromsubtrahendInstant
 the milliseconds from 19700101T00:00:00Z to
subtract off the minuend
public long getUnitMillis()
DurationField
For imprecise fields, the unit size is variable, and so this method returns a suitable average value.
getUnitMillis
in class DecoratedDurationField
DurationField.isPrecise()
public int getScalar()
public boolean equals(Object obj)
equals
in class Object
obj
 the object to compare to
public int hashCode()
hashCode
in class Object


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