/*
* Copyright 2001-2013 Stephen Colebourne
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.joda.time.chrono;
import org.joda.time.DateTimeField;
import org.joda.time.DateTimeFieldType;
import org.joda.time.DurationField;
import org.joda.time.ReadablePartial;
import org.joda.time.field.DecoratedDateTimeField;
import org.joda.time.field.FieldUtils;
/**
* This field is not publicy exposed by ISOChronology, but rather it is used to
* build the yearOfCentury and centuryOfEra fields. It merely drops the sign of
* the year.
*
* @author Brian S O'Neill
* @see GJYearOfEraDateTimeField
* @since 1.0
*/
class ISOYearOfEraDateTimeField extends DecoratedDateTimeField {
@SuppressWarnings("unused")
private static final long serialVersionUID = 7037524068969447317L;
/**
* Singleton instance
*/
static final DateTimeField INSTANCE = new ISOYearOfEraDateTimeField();
/**
* Restricted constructor.
*/
private ISOYearOfEraDateTimeField() {
super(GregorianChronology.getInstanceUTC().year(), DateTimeFieldType.yearOfEra());
}
@Override
public DurationField getRangeDurationField() {
return GregorianChronology.getInstanceUTC().eras();
}
public int get(long instant) {
int year = getWrappedField().get(instant);
return year < 0 ? -year : year;
}
public long add(long instant, int years) {
return getWrappedField().add(instant, years);
}
public long add(long instant, long years) {
return getWrappedField().add(instant, years);
}
public long addWrapField(long instant, int years) {
return getWrappedField().addWrapField(instant, years);
}
public int[] addWrapField(ReadablePartial instant, int fieldIndex, int[] values, int years) {
return getWrappedField().addWrapField(instant, fieldIndex, values, years);
}
public int getDifference(long minuendInstant, long subtrahendInstant) {
return getWrappedField().getDifference(minuendInstant, subtrahendInstant);
}
public long getDifferenceAsLong(long minuendInstant, long subtrahendInstant) {
return getWrappedField().getDifferenceAsLong(minuendInstant, subtrahendInstant);
}
public long set(long instant, int year) {
FieldUtils.verifyValueBounds(this, year, 0, getMaximumValue());
if (getWrappedField().get(instant) < 0) {
year = -year;
}
return super.set(instant, year);
}
public int getMinimumValue() {
return 0;
}
public int getMaximumValue() {
return getWrappedField().getMaximumValue();
}
public long roundFloor(long instant) {
return getWrappedField().roundFloor(instant);
}
public long roundCeiling(long instant) {
return getWrappedField().roundCeiling(instant);
}
public long remainder(long instant) {
return getWrappedField().remainder(instant);
}
/**
* Serialization singleton
*/
private Object readResolve() {
return INSTANCE;
}
}