/**
* Constructor.
*
* @param field the field to wrap, like "year()".
* @param offset offset to add to field values
* @throws IllegalArgumentException if offset is zero
*/
public OffsetDateTimeField(DateTimeField field, int offset) {
this(
field,
(field == null ? null : field.getType()),
offset,
Integer.MIN_VALUE,
Integer.MAX_VALUE);
}
/**
* Constructor.
*
* @param field the field to wrap, like "year()".
* @param type the field type this field actually uses
* @param offset offset to add to field values
* @param minValue minimum allowed value
* @param maxValue maximum allowed value
* @throws IllegalArgumentException if offset is zero
*/
public OffsetDateTimeField(
DateTimeField field, DateTimeFieldType type, int offset, int minValue, int maxValue) {
super(field, type);
if (offset == 0) {
throw new IllegalArgumentException("The offset cannot be zero");
}
iOffset = offset;
if (minValue < (field.getMinimumValue() + offset)) {
iMin = field.getMinimumValue() + offset;
} else {
iMin = minValue;
}
if (maxValue > (field.getMaximumValue() + offset)) {
iMax = field.getMaximumValue() + offset;
} else {
iMax = maxValue;
}
}
/**
* Get the value of one of the fields of a datetime.
*
* <p>This could be used to get a field using a different Chronology. For example:
*
* <pre>
* Instant dt = new Instant();
* int gjYear = dt.get(Chronology.getCoptic().year());
* </pre>
*
* @param field the DateTimeField to use, not null
* @return the value
* @throws IllegalArgumentException if the field is null
*/
public int get(DateTimeField field) {
if (field == null) {
throw new IllegalArgumentException("The DateTimeField must not be null");
}
return field.get(getMillis());
}