com.jn.langx.util.jodatime.field

类 PreciseDurationField

java.lang.Object

com.jn.langx.util.jodatime.DurationField

com.jn.langx.util.jodatime.field.BaseDurationField

com.jn.langx.util.jodatime.field.PreciseDurationField

所有已实现的接口:

Serializable, Comparable<DurationField>

public class PreciseDurationField
extends BaseDurationField

Duration field class representing a field with a fixed unit length.

PreciseDurationField is thread-safe and immutable.

从以下版本开始:

1.0

作者:

Stephen Colebourne, Brian S O'Neill

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
PreciseDurationField(DurationFieldType type, long unitMillis) Constructor.

方法概要

限定符和类型	方法和说明
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.
long	getDifferenceAsLong(long minuendInstant, long subtrahendInstant) Computes the difference between two instants, as measured in the units of this field.
long	getMillis(int value, long instant) Get the millisecond duration of this field from its value.
long	getMillis(long value, long instant) Get the millisecond duration of this field from its value.
long	getUnitMillis() Returns the amount of milliseconds per unit value of this field.
long	getValueAsLong(long duration, long instant) Get the value of this field from the milliseconds.
int	hashCode() Gets a hash code for this instance.
boolean	isPrecise() This field is precise.

从类继承的方法 com.jn.langx.util.jodatime.field.BaseDurationField

compareTo, getDifference, getMillis, getMillis, getName, getType, getValue, getValue, getValueAsLong, isSupported, toString

从类继承的方法 com.jn.langx.util.jodatime.DurationField

subtract, subtract

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

PreciseDurationField

public PreciseDurationField(DurationFieldType type,
                            long unitMillis)

Constructor.

参数:

type - the field type

unitMillis - the unit milliseconds

方法详细资料

isPrecise

public final boolean isPrecise()

This field is precise.

指定者:

isPrecise 在类中 DurationField

返回:

true always

另请参阅:

DurationField.getUnitMillis()

getUnitMillis

public final long getUnitMillis()

Returns the amount of milliseconds per unit value of this field.

指定者:

getUnitMillis 在类中 DurationField

返回:

the unit size of this field, in milliseconds

另请参阅:

DurationField.isPrecise()

getValueAsLong

public long getValueAsLong(long duration,
                           long instant)

Get the value of this field from the milliseconds.

指定者:

getValueAsLong 在类中 DurationField

参数:

duration - the milliseconds to query, which may be negative

instant - ignored

返回:

the value of the field, in the units of the field, which may be negative

getMillis

public long getMillis(int value,
                      long instant)

Get the millisecond duration of this field from its value.

指定者:

getMillis 在类中 DurationField

参数:

value - the value of the field, which may be negative

instant - ignored

返回:

the milliseconds that the field represents, which may be negative

getMillis

public long getMillis(long value,
                      long instant)

Get the millisecond duration of this field from its value.

指定者:

getMillis 在类中 DurationField

参数:

value - the value of the field, which may be negative

instant - ignored

返回:

the milliseconds that the field represents, which may be negative

add

public long add(long instant,
                int value)

从类复制的说明: DurationField

Adds a duration value (which may be negative) to the instant.

指定者:

add 在类中 DurationField

参数:

instant - the milliseconds from 1970-01-01T00:00:00Z to add to

value - the value to add, in the units of the field

返回:

the updated milliseconds

add

public long add(long instant,
                long value)

从类复制的说明: DurationField

Adds a duration value (which may be negative) to the instant.

指定者:

add 在类中 DurationField

参数:

instant - the milliseconds from 1970-01-01T00:00:00Z to add to

value - the value to add, in the units of the field

返回:

the updated milliseconds

getDifferenceAsLong

public long getDifferenceAsLong(long minuendInstant,
                                long subtrahendInstant)

从类复制的说明: DurationField

Computes the difference between two instants, as measured in the units of this field. Any fractional units are dropped from the result. Calling getDifference reverses the effect of calling add. In the following code:

 long instant = ...
 long v = ...
 long age = getDifferenceAsLong(add(instant, v), instant);
 

The value 'age' is the same as the value 'v'.

指定者:

getDifferenceAsLong 在类中 DurationField

参数:

minuendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract from

subtrahendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract off the minuend

返回:

the difference in the units of this field

equals

public boolean equals(Object obj)

Compares this duration field to another. Two fields are equal if of the same type and duration.

覆盖:

equals 在类中 Object

参数:

obj - the object to compare to

返回:

if equal

hashCode

public int hashCode()

Gets a hash code for this instance.

覆盖:

hashCode 在类中 Object

返回:

a suitable hashcode