de.digitalcollections.core.model.impl.paging

Class PageRequestImpl

java.lang.Object

de.digitalcollections.core.model.impl.paging.PageRequestImpl

All Implemented Interfaces:

PageRequest, Serializable

public class PageRequestImpl
extends Object
implements PageRequest, Serializable

Basic Java Bean implementation of PageRequest. See Spring Data Commons, but more flat design and independent of Spring libraries.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PageRequestImpl()
PageRequestImpl(int page, int size) Creates a new PageRequest.
PageRequestImpl(int page, int size, Direction direction, String... properties) Creates a new PageRequest with sort parameters applied.
PageRequestImpl(int page, int size, Sorting sort) Creates a new PageRequest with sort parameters applied.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
PageRequest	first() Returns the PageRequest requesting the first page.
int	getOffset() Returns the offset to be taken according to the underlying page and page size.
int	getPageNumber() Returns the page to be returned.
int	getPageSize() Returns the number of items to be returned.
Sorting	getSorting() Returns the sorting parameters.
int	hashCode()
boolean	hasPrevious() Returns whether there's a previous PageRequest we can access from the current one.
PageRequest	next() Returns the PageRequest requesting the next page.
PageRequest	previous() Returns the PageResponse requesting the previous page.
PageRequest	previousOrFirst() Returns the previous PageRequest or the first PageRequest if the current one already is the first one.
void	setPageNumber(int page)
void	setPageSize(int size)
void	setSorting(Sorting sort)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PageRequestImpl

public PageRequestImpl()

PageRequestImpl

public PageRequestImpl(int page,
                       int size)

Creates a new PageRequest. Pages are zero indexed, thus providing 0 for page will return the first page.

Parameters:

page - zero-based page index.

size - the size of the page to be returned.

PageRequestImpl

public PageRequestImpl(int page,
                       int size,
                       Direction direction,
                       String... properties)

Creates a new PageRequest with sort parameters applied.

Parameters:

page - zero-based page index.

size - the size of the page to be returned.

direction - the direction of the SortingImpl to be specified, can be null.

properties - the properties to sort by, must not be null or empty.

PageRequestImpl

public PageRequestImpl(int page,
                       int size,
                       Sorting sort)

Creates a new PageRequest with sort parameters applied.

Parameters:

page - zero-based page index, must not be less than zero.

size - the size of the page to be returned, must not be less than one.

sort - can be null.

Method Detail

setPageNumber

public void setPageNumber(int page)

setPageSize

public void setPageSize(int size)

setSorting

public void setSorting(Sorting sort)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

first

public PageRequest first()

Description copied from interface: PageRequest

Returns the PageRequest requesting the first page.

Specified by:

first in interface PageRequest

Returns:

the PageRequest requesting the first page

getOffset

public int getOffset()

Description copied from interface: PageRequest

Returns the offset to be taken according to the underlying page and page size.

Specified by:

getOffset in interface PageRequest

Returns:

the offset to be taken

getPageNumber

public int getPageNumber()

Description copied from interface: PageRequest

Returns the page to be returned.

Specified by:

getPageNumber in interface PageRequest

Returns:

the page to be returned.

getPageSize

public int getPageSize()

Description copied from interface: PageRequest

Returns the number of items to be returned.

Specified by:

getPageSize in interface PageRequest

Returns:

the number of items of that page

getSorting

public Sorting getSorting()

Description copied from interface: PageRequest

Returns the sorting parameters.

Specified by:

getSorting in interface PageRequest

Returns:

the sorting parameters

hasPrevious

public boolean hasPrevious()

Description copied from interface: PageRequest

Returns whether there's a previous PageRequest we can access from the current one. Will return false in case the current PageRequest already refers to the first page.

Specified by:

hasPrevious in interface PageRequest

Returns:

whether there's a previous PageRequest

hashCode

public int hashCode()

Overrides:

hashCode in class Object

next

public PageRequest next()

Description copied from interface: PageRequest

Returns the PageRequest requesting the next page.

Specified by:

next in interface PageRequest

Returns:

the PageRequest requesting the next page

previous

public PageRequest previous()

Returns the PageResponse requesting the previous page.

Returns:

the PageResponse requesting the previous page

previousOrFirst

public PageRequest previousOrFirst()

Description copied from interface: PageRequest

Returns the previous PageRequest or the first PageRequest if the current one already is the first one.

Specified by:

previousOrFirst in interface PageRequest

Returns:

the previous PageRequest or the first PageRequest if the current one already is the first one

toString

public String toString()

Overrides:

toString in class Object