org.nutz.dao.pager

Class Pager

java.lang.Object

org.nutz.dao.pager.Pager

All Implemented Interfaces:

Serializable, PageInfo

public class Pager
extends Object
implements PageInfo, Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PAGE_SIZE 改变这个，当每页大小超过 MAX_FETCH_SIZE 时，这个将是默认的 fetchSize
static int	MAX_FETCH_SIZE ResultSet 最大的 fetch size

Constructor Summary

Constructors

Constructor and Description
Pager()
Pager(int pageNumber)
Pager(int pageNumber, int pageSize)

Method Summary

Modifier and Type	Method and Description
int	getOffset() 当前页之前，还应该有多少条记录
int	getPageCount() 一共有多少页
int	getPageNumber() 当前是第几页， 从 1 开始
int	getPageSize() 一页可以有多少条记录
int	getRecordCount() 整个查询，一共有多少条记录
boolean	hasNext()
boolean	hasPrevious()
boolean	isFirst()
boolean	isLast()
Pager	resetPageCount()
Pager	setPageNumber(int pn) 设置页码
Pager	setPageSize(int pageSize) 设置一页可以有多少条记录
Pager	setRecordCount(int recordCount) 设置整个查询一共有多少条记录
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PAGE_SIZE

public static int DEFAULT_PAGE_SIZE

改变这个，当每页大小超过 MAX_FETCH_SIZE 时，这个将是默认的 fetchSize

MAX_FETCH_SIZE

public static int MAX_FETCH_SIZE

ResultSet 最大的 fetch size

Constructor Detail

Pager

public Pager()

Pager

public Pager(int pageNumber)

Pager

public Pager(int pageNumber,
             int pageSize)

Method Detail

resetPageCount

public Pager resetPageCount()

getPageCount

public int getPageCount()

Description copied from interface: PageInfo

一共有多少页

Specified by:

getPageCount in interface PageInfo

getPageNumber

public int getPageNumber()

Description copied from interface: PageInfo

当前是第几页， 从 1 开始

Specified by:

getPageNumber in interface PageInfo

getPageSize

public int getPageSize()

Description copied from interface: PageInfo

一页可以有多少条记录

Specified by:

getPageSize in interface PageInfo

getRecordCount

public int getRecordCount()

Description copied from interface: PageInfo

整个查询，一共有多少条记录

Specified by:

getRecordCount in interface PageInfo

setPageNumber

public Pager setPageNumber(int pn)

Description copied from interface: PageInfo

设置页码

Specified by:

setPageNumber in interface PageInfo

setPageSize

public Pager setPageSize(int pageSize)

Description copied from interface: PageInfo

设置一页可以有多少条记录

Specified by:

setPageSize in interface PageInfo

setRecordCount

public Pager setRecordCount(int recordCount)

Description copied from interface: PageInfo

设置整个查询一共有多少条记录

Specified by:

setRecordCount in interface PageInfo

getOffset

public int getOffset()

Description copied from interface: PageInfo

当前页之前，还应该有多少条记录

Specified by:

getOffset in interface PageInfo

toString

public String toString()

Overrides:

toString in class Object

isFirst

public boolean isFirst()

Specified by:

isFirst in interface PageInfo

Returns:

是否是第一页

isLast

public boolean isLast()

Specified by:

isLast in interface PageInfo

Returns:

是否是最后一页

hasNext

public boolean hasNext()

Specified by:

hasNext in interface PageInfo

Returns:

是否存在下一页

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface PageInfo

Returns:

是否存在上一页