org.joda.time
Class LocalDate.Property

java.lang.Object
  org.joda.time.field.AbstractReadableInstantFieldProperty
      org.joda.time.LocalDate.Property

All Implemented Interfaces:

Serializable

Enclosing class:

LocalDate

public static final class LocalDate.Property
extends AbstractReadableInstantFieldProperty

LocalDate.Property binds a LocalDate to a DateTimeField allowing powerful datetime functionality to be easily accessed.

The simplest use of this class is as an alternative get method, here used to get the year '1972' (as an int) and the month 'December' (as a String).

 LocalDate dt = new LocalDate(1972, 12, 3, 0, 0);
 int year = dt.year().get();
 String monthStr = dt.month().getAsText();
 

Methods are also provided that allow date modification. These return new instances of LocalDate - they do not modify the original. The example below yields two independent immutable date objects 20 years apart.

 LocalDate dt = new LocalDate(1972, 12, 3);
 LocalDate dt1920 = dt.year().setCopy(1920);
 

LocalDate.Property itself is thread-safe and immutable, as well as the LocalDate being operated on.

Since:

1.3

Author:

Stephen Colebourne, Brian S O'Neill

See Also:

Serialized Form

Method Summary

LocalDate	addToCopy(int value) Adds to this field in a copy of this LocalDate.
LocalDate	addWrapFieldToCopy(int value) Adds to this field, possibly wrapped, in a copy of this LocalDate.
protected Chronology	getChronology() Gets the chronology of the datetime that this property is linked to.
DateTimeField	getField() Gets the field being used.
LocalDate	getLocalDate() Gets the LocalDate object linked to this property.
protected long	getMillis() Gets the milliseconds of the date that this property is linked to.
LocalDate	roundCeilingCopy() Rounds to the highest whole unit of this field on a copy of this LocalDate.
LocalDate	roundFloorCopy() Rounds to the lowest whole unit of this field on a copy of this LocalDate.
LocalDate	roundHalfCeilingCopy() Rounds to the nearest whole unit of this field on a copy of this LocalDate, favoring the ceiling if halfway.
LocalDate	roundHalfEvenCopy() Rounds to the nearest whole unit of this field on a copy of this LocalDate.
LocalDate	roundHalfFloorCopy() Rounds to the nearest whole unit of this field on a copy of this LocalDate, favoring the floor if halfway.
LocalDate	setCopy(int value) Sets this field in a copy of the LocalDate.
LocalDate	setCopy(String text) Sets this field in a copy of the LocalDate to a parsed text value.
LocalDate	setCopy(String text, Locale locale) Sets this field in a copy of the LocalDate to a parsed text value.
LocalDate	withMaximumValue() Returns a new LocalDate with this field set to the maximum value for this field.
LocalDate	withMinimumValue() Returns a new LocalDate with this field set to the minimum value for this field.

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

compareTo, compareTo, equals, get, getAsShortText, getAsShortText, getAsString, getAsText, getAsText, getDifference, getDifferenceAsLong, getDurationField, getFieldType, getLeapAmount, getLeapDurationField, getMaximumShortTextLength, getMaximumTextLength, getMaximumValue, getMaximumValueOverall, getMinimumValue, getMinimumValueOverall, getName, getRangeDurationField, hashCode, isLeap, remainder, toInterval, toString

Methods inherited from class java.lang.Object

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

Method Detail

getField

public DateTimeField getField()

Gets the field being used.

Specified by:

getField in class AbstractReadableInstantFieldProperty

Returns:

the field

getMillis

protected long getMillis()

Gets the milliseconds of the date that this property is linked to.

Specified by:

getMillis in class AbstractReadableInstantFieldProperty

Returns:

the milliseconds

getChronology

protected Chronology getChronology()

Gets the chronology of the datetime that this property is linked to.

Overrides:

getChronology in class AbstractReadableInstantFieldProperty

Returns:

the chronology

Since:

1.4

getLocalDate

public LocalDate getLocalDate()

Gets the LocalDate object linked to this property.

Returns:

the linked LocalDate

addToCopy

public LocalDate addToCopy(int value)

Adds to this field in a copy of this LocalDate.

The LocalDate attached to this property is unchanged by this call.

Parameters:

value - the value to add to the field in the copy

Returns:

a copy of the LocalDate with the field value changed

Throws:

IllegalArgumentException - if the value isn't valid

addWrapFieldToCopy

public LocalDate addWrapFieldToCopy(int value)

Adds to this field, possibly wrapped, in a copy of this LocalDate. A field wrapped operation only changes this field. Thus 31st January addWrapField one day goes to the 1st January.

The LocalDate attached to this property is unchanged by this call.

Parameters:

value - the value to add to the field in the copy

Returns:

a copy of the LocalDate with the field value changed

Throws:

IllegalArgumentException - if the value isn't valid

setCopy

public LocalDate setCopy(int value)

Sets this field in a copy of the LocalDate.

The LocalDate attached to this property is unchanged by this call.

Parameters:

value - the value to set the field in the copy to

Returns:

a copy of the LocalDate with the field value changed

Throws:

IllegalArgumentException - if the value isn't valid

setCopy

public LocalDate setCopy(String text,
                         Locale locale)

Sets this field in a copy of the LocalDate to a parsed text value.

The LocalDate attached to this property is unchanged by this call.

Parameters:

text - the text value to set

locale - optional locale to use for selecting a text symbol

Returns:

a copy of the LocalDate with the field value changed

Throws:

IllegalArgumentException - if the text value isn't valid

setCopy

public LocalDate setCopy(String text)

Sets this field in a copy of the LocalDate to a parsed text value.

The LocalDate attached to this property is unchanged by this call.

Parameters:

text - the text value to set

Returns:

a copy of the LocalDate with the field value changed

Throws:

IllegalArgumentException - if the text value isn't valid

withMaximumValue

public LocalDate withMaximumValue()

Returns a new LocalDate with this field set to the maximum value for this field.

This operation is useful for obtaining a LocalDate on the last day of the month, as month lengths vary.

 LocalDate lastDayOfMonth = dt.dayOfMonth().withMaximumValue();
 

The LocalDate attached to this property is unchanged by this call.

Returns:

a copy of the LocalDate with this field set to its maximum

withMinimumValue

public LocalDate withMinimumValue()

Returns a new LocalDate with this field set to the minimum value for this field.

The LocalDate attached to this property is unchanged by this call.

Returns:

a copy of the LocalDate with this field set to its minimum

roundFloorCopy

public LocalDate roundFloorCopy()

Rounds to the lowest whole unit of this field on a copy of this LocalDate.

For example, rounding floor on the hourOfDay field of a LocalDate where the time is 10:30 would result in new LocalDate with the time of 10:00.

Returns:

a copy of the LocalDate with the field value changed

roundCeilingCopy

public LocalDate roundCeilingCopy()

Rounds to the highest whole unit of this field on a copy of this LocalDate.

For example, rounding floor on the hourOfDay field of a LocalDate where the time is 10:30 would result in new LocalDate with the time of 11:00.

Returns:

a copy of the LocalDate with the field value changed

roundHalfFloorCopy

public LocalDate roundHalfFloorCopy()

Rounds to the nearest whole unit of this field on a copy of this LocalDate, favoring the floor if halfway.

Returns:

a copy of the LocalDate with the field value changed

roundHalfCeilingCopy

public LocalDate roundHalfCeilingCopy()

Rounds to the nearest whole unit of this field on a copy of this LocalDate, favoring the ceiling if halfway.

Returns:

a copy of the LocalDate with the field value changed

roundHalfEvenCopy

public LocalDate roundHalfEvenCopy()

Rounds to the nearest whole unit of this field on a copy of this LocalDate. If halfway, the ceiling is favored over the floor only if it makes this field's value even.

Returns:

a copy of the LocalDate with the field value changed