Package org.springframework.data.domain

Class Sort

java.lang.Object

org.springframework.data.domain.Sort

All Implemented Interfaces:

Serializable, Iterable<Sort.Order>, Supplier<Stream<Sort.Order>>, Streamable<Sort.Order>

Direct Known Subclasses:

QSort, RevisionSort, Sort.TypedSort

public class Sort
extends Object
implements Streamable<Sort.Order>, Serializable

Sort option for queries. You have to provide at least a list of properties to sort for that must not include null or empty strings. The direction defaults to DEFAULT_DIRECTION.

Author:

Oliver Gierke, Thomas Darimont, Mark Paluch, Johannes Englmeier, Jan Kurella

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	Sort.Direction	Enumeration for sort directions.
static enum	Sort.NullHandling	Enumeration for null handling hints that can be used in Sort.Order expressions.
static class	Sort.Order	PropertyPath implements the pairing of an Sort.Direction and a property.
static class	Sort.TypedSort<T>	Extension of Sort to use method handles to define properties to sort by.

Field Summary

Fields

Modifier and Type	Field	Description
static final Sort.Direction	DEFAULT_DIRECTION

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Sort(List<Sort.Order> orders)

Method Summary

Modifier and Type	Method	Description
Sort	and(Sort sort)	Returns a new Sort consisting of the Sort.Orders of the current Sort combined with the given ones.
Sort	ascending()	Returns a new Sort with the current setup but ascending order direction.
static Sort	by(String... properties)	Creates a new Sort for the given properties.
static Sort	by(List<Sort.Order> orders)	Creates a new Sort for the given Sort.Orders.
static Sort	by(Sort.Direction direction, String... properties)	Creates a new Sort for the given Sort.Direction and properties.
static Sort	by(Sort.Order... orders)	Creates a new Sort for the given Sort.Orders.
Sort	descending()	Returns a new Sort with the current setup but descending order direction.
protected List<Sort.Order>	doReverse()
boolean	equals(Object obj)
Sort.Order	getOrderFor(String property)	Returns the order registered for the given property.
int	hashCode()
boolean	isEmpty()	Returns whether the current Streamable is empty.
boolean	isSorted()
boolean	isUnsorted()
Iterator<Sort.Order>	iterator()
Sort	reverse()	Returns a new Sort with reversed sort Sort.Orders turning effectively asccending into descending sort order and vice versa.
static <T> Sort.TypedSort<T>	sort(Class<T> type)	Creates a new Sort.TypedSort for the given type.
String	toString()
static Sort	unsorted()	Returns a Sort instances representing no sorting setup at all.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.springframework.data.util.Streamable

and, and, and, and, filter, flatMap, get, map, stream, toList, toSet

Field Details

DEFAULT_DIRECTION

public static final Sort.Direction DEFAULT_DIRECTION

Constructor Details

Sort

protected Sort(List<Sort.Order> orders)

Method Details

by

public static Sort by(String... properties)

Creates a new Sort for the given properties.

Parameters:

properties - must not be null.

Returns:

Sort for the given properties.

by

public static Sort by(List<Sort.Order> orders)

Creates a new Sort for the given Sort.Orders.

Parameters:

orders - must not be null.

Returns:

Sort for the given Sort.Orders.

by

public static Sort by(Sort.Order... orders)

Creates a new Sort for the given Sort.Orders.

Parameters:

orders - must not be null.

Returns:

Sort for the given Sort.Orders.

by

public static Sort by(Sort.Direction direction,
 String... properties)

Creates a new Sort for the given Sort.Direction and properties.

Parameters:

direction - must not be null.

properties - must not be null.

Returns:

Sort for the given Sort.Direction and properties.

sort

public static <T> Sort.TypedSort<T> sort(Class<T> type)

Creates a new Sort.TypedSort for the given type.

Parameters:

type - must not be null.

Returns:

Sort.TypedSort for the given type.

Since:

2.2

unsorted

public static Sort unsorted()

Returns a Sort instances representing no sorting setup at all.

Returns:

unsorted Sort instance.

descending

public Sort descending()

Returns a new Sort with the current setup but descending order direction.

Returns:

a new Sort with the current setup but descending order direction.

ascending

public Sort ascending()

Returns a new Sort with the current setup but ascending order direction.

Returns:

a new Sort with the current setup but ascending order direction.

isSorted

public boolean isSorted()

Returns:

true if this Sort instance is sorted, false otherwise.

isEmpty

public boolean isEmpty()

Description copied from interface: Streamable

Returns whether the current Streamable is empty.

Specified by:

isEmpty in interface Streamable<Sort.Order>

Returns:

isUnsorted

public boolean isUnsorted()

Returns:

true if this Sort instance is unsorted, false otherwise.

and

public Sort and(Sort sort)

Returns a new Sort consisting of the Sort.Orders of the current Sort combined with the given ones.

Parameters:

sort - must not be null.

Returns:

a new Sort consisting of the Sort.Orders of the current Sort combined with the given ones.

reverse

public Sort reverse()

Returns a new Sort with reversed sort Sort.Orders turning effectively asccending into descending sort order and vice versa.

Returns:

a new Sort object with reversed sort orders applied.

Since:

3.1

doReverse

protected List<Sort.Order> doReverse()

getOrderFor

@Nullable
public Sort.Order getOrderFor(String property)

Returns the order registered for the given property.

Parameters:

property - name of the property that should be sorted.

Returns:

the sort Sort.Order or null if the property is not sorted by.

iterator

public Iterator<Sort.Order> iterator()

Specified by:

iterator in interface Iterable<Sort.Order>

equals

public boolean equals(@Nullable
 Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object