org.joda.time.convert
Class AbstractConverter

java.lang.Object
  org.joda.time.convert.AbstractConverter

All Implemented Interfaces:

Converter

public abstract class AbstractConverter
extends Object
implements Converter

AbstractConverter simplifies the process of implementing a converter.

Since:

1.0

AbstractConverter

protected AbstractConverter()

Restricted constructor.

getInstantMillis

public long getInstantMillis(Object object,
                             Chronology chrono)

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

This implementation returns the current time.

Parameters:

object - the object to convert

chrono - the chronology to use, which is always non-null

Returns:

the millisecond value

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.

This implementation returns the ISO chronology.

Parameters:

object - the object to convert

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

Returns:

the chronology, never null

getChronology

public Chronology getChronology(Object object,
                                Chronology chrono)

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

This implementation returns the chronology specified, or the ISO chronology in the default zone if null passed in.

Parameters:

object - the object to convert

chrono - the chronology to use, null means ISO default

Returns:

the chronology, never null

getPartialValues

public int[] getPartialValues(ReadablePartial fieldSource,
                              Object object,
                              Chronology chrono)

Extracts the values of the partial from an object of this converter's type. The chrono parameter is a hint to the converter, should it require a chronology to aid in conversion.

This implementation calls getInstantMillis(Object, Chronology).

Parameters:

fieldSource - a partial that provides access to the fields. This partial may be incomplete and only getFieldType(int) should be used

object - the object to convert

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

Returns:

the array of field values that match the fieldSource, must be non-null valid

Throws:

ClassCastException - if the object is invalid

getPartialValues

public int[] getPartialValues(ReadablePartial fieldSource,
                              Object object,
                              Chronology chrono,
                              DateTimeFormatter parser)

Extracts the values of the partial from an object of this converter's type. The chrono parameter is a hint to the converter, should it require a chronology to aid in conversion.

This implementation calls getPartialValues(ReadablePartial, Object, Chronology).

Parameters:

fieldSource - a partial that provides access to the fields. This partial may be incomplete and only getFieldType(int) should be used

object - the object to convert

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

parser - if converting from a String, the given parser is preferred

Returns:

the array of field values that match the fieldSource, must be non-null valid

Throws:

ClassCastException - if the object is invalid

Since:

1.3

getPeriodType

public PeriodType getPeriodType(Object object)

Selects a suitable period type for the given object.

Parameters:

object - the object to examine

Returns:

the period type, never null

isReadableInterval

public boolean isReadableInterval(Object object,
                                  Chronology chrono)

Checks if the input is a ReadableInterval.

If it is, then the calling code should cast and copy the fields directly.

Parameters:

object - the object to convert

chrono - the chronology to use, may be null

Returns:

true if the input is a ReadableInterval

toString

public String toString()

Gets a debugging string version of this converter.

Overrides:

toString in class Object

Returns:

a debugging string