Package com.power4j.fist.data.domain

Class PageImpl<T>

java.lang.Object

com.power4j.fist.data.domain.PageImpl<T>

Type Parameters:

T - 实体类型

All Implemented Interfaces:

Paged<T>

public class PageImpl<T>
extends Object
implements Paged<T>

Since:

1.0

Author:

CJ (power4j@outlook.com)

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	FIRST_PAGE

Constructor Summary

Constructors

Constructor	Description
PageImpl(List<T> content, Pageable pageable, long total)

Method Summary

Modifier and Type	Method	Description
List<T>	getContent()	获取数据
protected <U> List<U>	getConvertedContent(Function<? super T,? extends U> converter)
int	getNumberOfElements()	返回当前数据条数
int	getPageNumber()	返回当前页码
int	getPageSize()	返回页大小
Sort	getSort()	返回请求使用的排序参数
long	getTotalElements()	总记录数
int	getTotalPages()	总页数
boolean	hasContent()	是否包含数据
boolean	hasNext()	是否有下一页
boolean	hasPrevious()	是否有前一页
boolean	isFirst()	是否为第一页
boolean	isLast()	是否为最后一页
<U> Paged<U>	map(Function<? super T,? extends U> converter)	转换方法
Pageable	nextPageable()	返回下一页的分页请求，使用方应该先检查是否存在下一页
Pageable	previousPageable()	返回前一页的分页请求，使用方应该先检查是否存在前一页

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.power4j.fist.data.domain.Paged

getPageable, nextOrLastPageable

Field Details

FIRST_PAGE

protected static final int FIRST_PAGE

See Also:

• Constant Field Values

Constructor Details

PageImpl

public PageImpl(@Nullable
 List<T> content,
 Pageable pageable,
 long total)

Method Details

getPageNumber

public int getPageNumber()

Description copied from interface: Paged

返回当前页码

Specified by:

getPageNumber in interface Paged<T>

Returns:

返回当前页码

getPageSize

public int getPageSize()

Description copied from interface: Paged

返回页大小

Specified by:

getPageSize in interface Paged<T>

Returns:

返回页大小

getNumberOfElements

public int getNumberOfElements()

Description copied from interface: Paged

返回当前数据条数

Specified by:

getNumberOfElements in interface Paged<T>

Returns:

返回当前数据条数

getTotalPages

public int getTotalPages()

Description copied from interface: Paged

总页数

Specified by:

getTotalPages in interface Paged<T>

Returns:

返回总页数

getTotalElements

public long getTotalElements()

Description copied from interface: Paged

总记录数

Specified by:

getTotalElements in interface Paged<T>

Returns:

返回总记录数

getContent

public List<T> getContent()

Description copied from interface: Paged

获取数据

Specified by:

getContent in interface Paged<T>

Returns:

返回数据

hasContent

public boolean hasContent()

Description copied from interface: Paged

是否包含数据

Specified by:

hasContent in interface Paged<T>

Returns:

boolean

getSort

public Sort getSort()

Description copied from interface: Paged

返回请求使用的排序参数

Specified by:

getSort in interface Paged<T>

Returns:

Sort

isFirst

public boolean isFirst()

Description copied from interface: Paged

是否为第一页

Specified by:

isFirst in interface Paged<T>

Returns:

boolean

isLast

public boolean isLast()

Description copied from interface: Paged

是否为最后一页

Specified by:

isLast in interface Paged<T>

Returns:

boolean

hasNext

public boolean hasNext()

Description copied from interface: Paged

是否有下一页

Specified by:

hasNext in interface Paged<T>

Returns:

表示可以向后翻页

hasPrevious

public boolean hasPrevious()

Description copied from interface: Paged

是否有前一页

Specified by:

hasPrevious in interface Paged<T>

Returns:

true 表示可以向前翻页

nextPageable

public Pageable nextPageable()

Description copied from interface: Paged

返回下一页的分页请求，使用方应该先检查是否存在下一页

Specified by:

nextPageable in interface Paged<T>

Returns:

Pageable

See Also:

• Paged.nextOrLastPageable()

previousPageable

public Pageable previousPageable()

Description copied from interface: Paged

返回前一页的分页请求，使用方应该先检查是否存在前一页

Specified by:

previousPageable in interface Paged<T>

Returns:

Pageable

See Also:

• Paged.previousPageable()

map

public <U> Paged<U> map(Function<? super T,? extends U> converter)

Description copied from interface: Paged

转换方法

Specified by:

map in interface Paged<T>

Parameters:

converter - 转换函数

Returns:

Paged

getConvertedContent

protected <U> List<U> getConvertedContent(Function<? super T,? extends U> converter)