Package com.bellotapps.webapps_commons.persistence.repository_utils

Class AbstractSlice<T>

java.lang.Object

com.bellotapps.webapps_commons.persistence.repository_utils.AbstractSlice<T>

All Implemented Interfaces:

Slice<T>

Direct Known Subclasses:

PageImpl, SliceImpl

public abstract class AbstractSlice<T>
extends java.lang.Object
implements Slice<T>

An abstract Slice, which implements common logic to all type of Slices.

Constructor Summary

Constructors

Constructor	Description
AbstractSlice(int number, int size, SortingData sortingData, java.util.List<T> content)	Constructor.

Method Summary

Modifier and Type	Method	Description
java.util.List<T>	content()
PagingRequest	firstRequest()
boolean	hasContent()	Indicates whether there are elements in this slice.
boolean	hasPrevious()	Indicates whether there is a previous slice.
boolean	isFirst()	Indicates whether this is the first slice.
boolean	isLast()	Indicates whether this is the last slice.
java.util.Optional<PagingRequest>	nextRequest()
int	number()
int	numberOfElements()
long	offset()
java.util.Optional<PagingRequest>	previousRequest()
PagingRequest	requestedBy()
int	size()
SortingData	sortingData()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.bellotapps.webapps_commons.persistence.repository_utils.Slice

hasNext, map

Constructor Detail

AbstractSlice

public AbstractSlice(int number,
                     int size,
                     SortingData sortingData,
                     java.util.List<T> content)

Constructor.

Parameters:

number - Number of slice.

size - Slice size.

sortingData - The SortingData that was used to sort contents of this slice.

content - Content in this slice.

Method Detail

number

public int number()

Specified by:

number in interface Slice<T>

Returns:

Number of slice.

size

public int size()

Specified by:

size in interface Slice<T>

Returns:

Slice size.

sortingData

public SortingData sortingData()

Specified by:

sortingData in interface Slice<T>

Returns:

SortingData that was used to sort contents of this slice.

numberOfElements

public int numberOfElements()

Specified by:

numberOfElements in interface Slice<T>

Returns:

Amount of elements in the slice (can be less than the slice size if it is the last one).

offset

public long offset()

Specified by:

offset in interface Slice<T>

Returns:

The offset to be taken according to the underlying Slice number and size.

content

public java.util.List<T> content()

Specified by:

content in interface Slice<T>

Returns:

Content in this slice.

hasContent

public boolean hasContent()

Description copied from interface: Slice

Indicates whether there are elements in this slice.

Specified by:

hasContent in interface Slice<T>

Returns:

true if there are elements, or false otherwise.

requestedBy

public PagingRequest requestedBy()

Specified by:

requestedBy in interface Slice<T>

Returns:

A PagingRequest from which this slice can be requested.

isFirst

public boolean isFirst()

Description copied from interface: Slice

Indicates whether this is the first slice.

Specified by:

isFirst in interface Slice<T>

Returns:

true if it is the first slice, or false otherwise.

firstRequest

public PagingRequest firstRequest()

Specified by:

firstRequest in interface Slice<T>

Returns:

A PagingRequest from which the first slice can be requested.

hasPrevious

public boolean hasPrevious()

Description copied from interface: Slice

Indicates whether there is a previous slice.

Specified by:

hasPrevious in interface Slice<T>

Returns:

true if there is a previous slice, or false otherwise.

previousRequest

public java.util.Optional<PagingRequest> previousRequest()

Specified by:

previousRequest in interface Slice<T>

Returns:

An Optional of PagingRequest from which the previous slice can be requested, if there is such, or empty otherwise.

nextRequest

public java.util.Optional<PagingRequest> nextRequest()

Specified by:

nextRequest in interface Slice<T>

Returns:

An Optional of PagingRequest from which the next slice can be requested, if there is such, or empty otherwise.

isLast

public boolean isLast()

Description copied from interface: Slice

Indicates whether this is the last slice.

Specified by:

isLast in interface Slice<T>

Returns:

true if it is the last slice, or false otherwise.