org.joda.time.convert
Interface InstantConverter

All Superinterfaces:

Converter

public interface InstantConverter

extends Converter

InstantConverter defines how an object is converted to milliseconds/chronology.

The two methods in this interface must be called in order, as the getInstantMillis method relies on the result of the getChronology method being passed in.

Since:

1.0

Author:

Stephen Colebourne

Method Summary

Chronology	getChronology(Object object, Chronology chrono) Extracts the chronology from an object of this converter's type where the chronology may be specified.
Chronology	getChronology(Object object, DateTimeZone zone) Extracts the chronology from an object of this converter's type where the time zone is specified.
long	getInstantMillis(Object object, Chronology chrono) Extracts the millis from an object of this converter's type.

Methods inherited from interface org.joda.time.convert.Converter

getSupportedType

Method Detail

getChronology

public Chronology getChronology(Object object,
                                DateTimeZone zone)

Extracts the chronology from an object of this converter's type where the time zone is specified.

Parameters:

object - the object to convert

zone - the specified zone to use, null means default zone

Returns:

the chronology, never null

Throws:

ClassCastException - if the object is invalid

getChronology

public Chronology getChronology(Object object,
                                Chronology chrono)

Extracts the chronology from an object of this converter's type where the chronology may be specified.

If the chronology is non-null it should be used. If it is null, then the object should be queried, and if it has no chronology then ISO default is used.

Parameters:

object - the object to convert

chrono - the chronology to use, null means use object

Returns:

the chronology, never null

Throws:

ClassCastException - if the object is invalid

getInstantMillis

public long getInstantMillis(Object object,
                             Chronology chrono)

Extracts the millis from an object of this converter's type.

The chronology passed in is the result of the call to getChronology.

Parameters:

object - the object to convert

chrono - the chronology to use, which is the non-null result of getChronology()

Returns:

the millisecond instant

Throws:

ClassCastException - if the object is invalid

IllegalArgumentException - if object conversion fails