Package com.blazebit.persistence.deltaspike.data

Interface Slice<T>

All Superinterfaces:

java.lang.Iterable<T>

All Known Subinterfaces:

KeysetAwarePage<T>, KeysetAwareSlice<T>, Page<T>

public interface Slice<T>
extends java.lang.Iterable<T>

A sublist of a list of objects without knowledge of the size of the overall list, heavily inspired by Spring Data's Slice.

Since:

1.2.0

Author:

Christian Beikov

Method Summary

Modifier and Type	Method	Description
Pageable	currentPageable()	Returns the Pageable that can be used to request the current Slice.
java.util.List<T>	getContent()	Returns the slice content as Slice.
int	getNumber()	Returns the number of the current Slice.
int	getNumberOfElements()	Returns the actual number of elements currently on this Slice.
int	getSize()	Returns the size of the Slice i.e. what was request via Pageable.getPageSize().
Sort	getSort()	Returns the sorting that was used for pagination.
boolean	hasContent()	Returns whether the Slice has content at all.
boolean	hasNext()	Returns if there is a next Slice.
boolean	hasPrevious()	Returns if there is a previous Slice.
boolean	isFirst()	Returns whether the current Slice is the first one.
boolean	isLast()	Returns whether the current Slice is the last one.
Pageable	nextPageable()	Returns the Pageable that can be used to request the next Slice.
Pageable	previousPageable()	Returns the Pageable that can be used to request the previous Slice.

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

getNumber

int getNumber()

Returns the number of the current Slice. Zero based.

Returns:

The number of the current Slice.

getSize

int getSize()

Returns the size of the Slice i.e. what was request via Pageable.getPageSize().

Returns:

The size of the Slice.

getNumberOfElements

int getNumberOfElements()

Returns the actual number of elements currently on this Slice.

Returns:

The actual number of elements currently on this Slice.

getContent

java.util.List<T> getContent()

Returns the slice content as Slice.

Returns:

The content of the Slice

hasContent

boolean hasContent()

Returns whether the Slice has content at all.

Returns:

true if the content is non-empty, false otherwise

getSort

Sort getSort()

Returns the sorting that was used for pagination.

Returns:

The sorting

isFirst

boolean isFirst()

Returns whether the current Slice is the first one.

Returns:

true if the getNumber() is 0, false otherwise

isLast

boolean isLast()

Returns whether the current Slice is the last one.

Returns:

true if this is the last slice, false otherwise

hasNext

boolean hasNext()

Returns if there is a next Slice.

Returns:

true if nextPageable() will return results, false otherwise

hasPrevious

boolean hasPrevious()

Returns if there is a previous Slice.

Returns:

true if the getNumber() is greater than 0, false otherwise

currentPageable

Pageable currentPageable()

Returns the Pageable that can be used to request the current Slice.

Returns:

The Pageable for the current Slice

nextPageable

Pageable nextPageable()

Returns the Pageable that can be used to request the next Slice. Returns null if hasNext() returns false.

Returns:

The Pageable for the next Slice, or null if this is the last Slice

previousPageable

Pageable previousPageable()

Returns the Pageable that can be used to request the previous Slice. Returns null if hasPrevious() returns false.

Returns:

The Pageable for the previous Slice, or null if this is the first Slice