DecoratedDurationField (The Adobe AEM Quickstart and Web Application.)

java.lang.Object
- org.joda.time.DurationField
- - org.joda.time.field.BaseDurationField
  - - org.joda.time.field.DecoratedDurationField

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DurationField>

Direct Known Subclasses:

ScaledDurationField
```
public class DecoratedDurationField
extends BaseDurationField
```
DecoratedDurationField extends BaseDurationField, implementing only the minimum required set of methods. These implemented methods delegate to a wrapped field.
This design allows new DurationField types to be defined that piggyback on top of another, inheriting all the safe method implementations from BaseDurationField. Should any method require pure delegation to the wrapped field, simply override and use the provided getWrappedField method.
DecoratedDurationField is thread-safe and immutable, and its subclasses must be as well.

Since:

1.0

See Also:

DelegatedDurationField, Serialized Form

Constructor Summary

Constructors
Constructor and Description

DecoratedDurationField(DurationField field, DurationFieldType type)
Constructor.

Constructors
Constructor and Description
`DecoratedDurationField(DurationField field, DurationFieldType type)` Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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.
`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 relative to an instant.
`long`	`getMillis(long value, long instant)` Get the millisecond duration of this field from its value relative to an instant.
`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 relative to an instant.
`DurationField`	`getWrappedField()` Gets the wrapped duration field.
`boolean`	`isPrecise()` Is this field precise.

Methods inherited from class org.joda.time.field.BaseDurationField
compareTo, getDifference, getMillis, getMillis, getName, getType, getValue, getValue, getValueAsLong, isSupported, toString

Methods inherited from class org.joda.time.DurationField
subtract, subtract

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DecoratedDurationField
```
public DecoratedDurationField(DurationField field,
                              DurationFieldType type)
```
    Constructor.
    
    Parameters:
    
    field - the base field
    
    type - the type to actually use
- Method Detail
  - getWrappedField
```
public final DurationField getWrappedField()
```
    Gets the wrapped duration field.
    
    Returns:
    
    the wrapped DurationField
  - isPrecise
```
public boolean isPrecise()
```
    Description copied from class: DurationField
    
    Is this field precise. A precise field can calculate its value from milliseconds without needing a reference date. Put another way, a precise field's unit size is not variable.
    
    Specified by:
    
    isPrecise in class DurationField
    
    Returns:
    
    true if precise
    
    See Also:
    
    DurationField.getUnitMillis()
  - getValueAsLong
```
public long getValueAsLong(long duration,
                           long instant)
```
    Description copied from class: DurationField
    
    Get the value of this field from the milliseconds relative to an instant. For precise fields this method produces the same result as for the single argument get method.
    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".
    
    Specified by:
    
    getValueAsLong in class DurationField
    
    Parameters:
    
    duration - the milliseconds to query, which may be negative
    
    instant - the start instant to calculate relative to
    
    Returns:
    
    the value of the field, in the units of the field, which may be negative
  - getMillis
```
public long getMillis(int value,
                      long instant)
```
    Description copied from class: DurationField
    
    Get the millisecond duration of this field from its value relative to an instant. For precise fields this method produces the same result as for the single argument getMillis method.
    If the value is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
    
    Specified by:
    
    getMillis in class DurationField
    
    Parameters:
    
    value - the value of the field, which may be negative
    
    instant - the instant to calculate relative to
    
    Returns:
    
    the millisecond duration that the field represents, which may be negative
  - getMillis
```
public long getMillis(long value,
                      long instant)
```
    Description copied from class: DurationField
    
    Get the millisecond duration of this field from its value relative to an instant. For precise fields this method produces the same result as for the single argument getMillis method.
    If the value is positive, then the instant is treated as a "start instant". If negative, the instant is treated as an "end instant".
    
    Specified by:
    
    getMillis in class DurationField
    
    Parameters:
    
    value - the value of the field, which may be negative
    
    instant - the instant to calculate relative to
    
    Returns:
    
    the millisecond duration that the field represents, which may be negative
  - add
```
public long add(long instant,
                int value)
```
    Description copied from class: DurationField
    
    Adds a duration value (which may be negative) to the instant.
    
    Specified by:
    
    add in class DurationField
    
    Parameters:
    
    instant - the milliseconds from 1970-01-01T00:00:00Z to add to
    
    value - the value to add, in the units of the field
    
    Returns:
    
    the updated milliseconds
  - add
```
public long add(long instant,
                long value)
```
    Description copied from class: DurationField
    
    Adds a duration value (which may be negative) to the instant.
    
    Specified by:
    
    add in class DurationField
    
    Parameters:
    
    instant - the milliseconds from 1970-01-01T00:00:00Z to add to
    
    value - the value to add, in the units of the field
    
    Returns:
    
    the updated milliseconds
  - getDifferenceAsLong
```
public long getDifferenceAsLong(long minuendInstant,
                                long subtrahendInstant)
```
    Description copied from class: 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'.
    Specified by:
    
    getDifferenceAsLong in class DurationField
    
    Parameters:
    
    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
    
    Returns:
    
    the difference in the units of this field
  - getUnitMillis
```
public long getUnitMillis()
```
    Description copied from class: DurationField
    
    Returns the amount of milliseconds per unit value of this field. For example, if this field represents "seconds", then this returns the milliseconds in one second.
    For imprecise fields, the unit size is variable, and so this method returns a suitable average value.
    
    Specified by:
    
    getUnitMillis in class DurationField
    
    Returns:
    
    the unit size of this field, in milliseconds
    
    See Also:
    
    DurationField.isPrecise()

Class DecoratedDurationField

Constructor Summary

Method Summary

Methods inherited from class org.joda.time.field.BaseDurationField

Methods inherited from class org.joda.time.DurationField

Methods inherited from class java.lang.Object

Constructor Detail

DecoratedDurationField

Method Detail

getWrappedField

isPrecise

getValueAsLong

getMillis

getMillis

add

add

getDifferenceAsLong

getUnitMillis