/**
* @inheritdoc
*/
public function isSupported(TemporalField $field)
{
if ($field instanceof ChronoField) {
return $field->isDateBased();
}
return $field != null && $field->isSupportedBy($this);
}
/**
* Checks if the specified field is supported.
* <p>
* This checks if this instant can be queried for the specified field.
* If false, then calling the {@link #range(TemporalField) range},
* {@link #get(TemporalField) get} and {@link #with(TemporalField, long)}
* methods will throw an exception.
* <p>
* If the field is a {@link ChronoField} then the query is implemented here.
* The supported fields are:
* <ul>
* <li>{@code NANO_OF_SECOND}
* <li>{@code MICRO_OF_SECOND}
* <li>{@code MILLI_OF_SECOND}
* <li>{@code INSTANT_SECONDS}
* </ul>
* All other {@code ChronoField} instances will return false.
* <p>
* If the field is not a {@code ChronoField}, then the result of this method
* is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
* passing {@code this} as the argument.
* Whether the field is supported is determined by the field.
*
* @param TemporalField $field the field to check, null returns false
* @return bool true if the field is supported on this instant, false if not
*/
public function isSupported(TemporalField $field)
{
if ($field instanceof ChronoField) {
return $field == ChronoField::INSTANT_SECONDS() || $field == ChronoField::NANO_OF_SECOND() || $field == ChronoField::MICRO_OF_SECOND() || $field == ChronoField::MILLI_OF_SECOND();
}
return $field != null && $field->isSupportedBy($this);
}
/**
* Checks if the specified field is supported.
* <p>
* This checks if this year can be queried for the specified field.
* If false, then calling the {@link #range(TemporalField) range},
* {@link #get(TemporalField) get} and {@link #with(TemporalField, long)}
* methods will throw an exception.
* <p>
* If the field is a {@link ChronoField} then the query is implemented here.
* The supported fields are:
* <ul>
* <li>{@code YEAR_OF_ERA}
* <li>{@code YEAR}
* <li>{@code ERA}
* </ul>
* All other {@code ChronoField} instances will return false.
* <p>
* If the field is not a {@code ChronoField}, then the result of this method
* is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
* passing {@code this} as the argument.
* Whether the field is supported is determined by the field.
*
* @param TemporalField $field the field to check, null returns false
* @return true if the field is supported on this year, false if not
*/
public function isSupported(TemporalField $field)
{
if ($field instanceof ChronoField) {
return $field == ChronoField::YEAR() || $field == ChronoField::YEAR_OF_ERA() || $field == ChronoField::ERA();
}
return $field != null && $field->isSupportedBy($this);
}
/**
* Checks if the specified field is supported.
* <p>
* This checks if this offset can be queried for the specified field.
* If false, then calling the {@link #range(TemporalField) range} and
* {@link #get(TemporalField) get} methods will throw an exception.
* <p>
* If the field is a {@link ChronoField} then the query is implemented here.
* The {@code OFFSET_SECONDS} field returns true.
* All other {@code ChronoField} instances will return false.
* <p>
* If the field is not a {@code ChronoField}, then the result of this method
* is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
* passing {@code this} as the argument.
* Whether the field is supported is determined by the field.
*
* @param TemporalField $field the field to check, null returns false
* @return bool true if the field is supported on this offset, false if not
*/
public function isSupported(TemporalField $field)
{
if ($field instanceof ChronoField) {
return $field == ChronoField::OFFSET_SECONDS();
}
return $field != null && $field->isSupportedBy($this);
}
public function isSupported(TemporalField $field)
{
return $field instanceof ChronoField || $field !== null && $field->isSupportedBy($this);
}
/**
* Checks if the specified field is supported.
* <p>
* This checks if this day-of-week can be queried for the specified field.
* If false, then calling the {@link #range(TemporalField) range} and
* {@link #get(TemporalField) get} methods will throw an exception.
* <p>
* If the field is {@link ChronoField#DAY_OF_WEEK DAY_OF_WEEK} then
* this method returns true.
* All other {@code ChronoField} instances will return false.
* <p>
* If the field is not a {@code ChronoField}, then the result of this method
* is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
* passing {@code this} as the argument.
* Whether the field is supported is determined by the field.
*
* @param TemporalField $field the field to check, null returns false
* @return boolean true if the field is supported on this day-of-week, false if not
*/
public function isSupported(TemporalField $field)
{
if ($field instanceof ChronoField) {
return $field == ChronoField::DAY_OF_WEEK();
}
return $field != null && $field->isSupportedBy($this);
}