Package org.springframework.batch.item.database.support

Class Db2PagingQueryProvider

java.lang.Object

org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider

org.springframework.batch.item.database.support.SqlWindowingPagingQueryProvider

org.springframework.batch.item.database.support.Db2PagingQueryProvider

All Implemented Interfaces:

PagingQueryProvider

public class Db2PagingQueryProvider
extends SqlWindowingPagingQueryProvider

DB2 implementation of a PagingQueryProvider using database specific features.

Since:

2.0

Author:

Thomas Risberg, Michael Minella, Mahmoud Ben Hassine

Constructor Summary

Constructors

Constructor	Description
Db2PagingQueryProvider()

Method Summary

Modifier and Type	Method	Description
String	generateFirstPageQuery(int pageSize)	Method generating the query string to be used for retrieving the first page.
String	generateRemainingPagesQuery(int pageSize)	Method generating the query string to be used for retrieving the pages following the first page.
protected Object	getSubQueryAlias()

Methods inherited from class org.springframework.batch.item.database.support.SqlWindowingPagingQueryProvider

extractTableAlias, generateJumpToItemQuery, getOrderedQueryAlias, getOverClause, getOverSubstituteClauseEnd, getOverSubstituteClauseStart

Methods inherited from class org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider

getFromClause, getGroupClause, getParameterCount, getSelectClause, getSortKeyPlaceHolder, getSortKeys, getSortKeysWithoutAliases, getWhereClause, init, isUsingNamedParameters, setFromClause, setGroupClause, setSelectClause, setSortKeys, setWhereClause

Methods inherited from class java.lang.Object

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

Constructor Details

Db2PagingQueryProvider

public Db2PagingQueryProvider()

Method Details

generateFirstPageQuery

public String generateFirstPageQuery(int pageSize)

Description copied from class: AbstractSqlPagingQueryProvider

Method generating the query string to be used for retrieving the first page. This method must be implemented in sub classes.

Specified by:

generateFirstPageQuery in interface PagingQueryProvider

Overrides:

generateFirstPageQuery in class SqlWindowingPagingQueryProvider

Parameters:

pageSize - number of rows to read per page

Returns:

query string

generateRemainingPagesQuery

public String generateRemainingPagesQuery(int pageSize)

Description copied from class: AbstractSqlPagingQueryProvider

Method generating the query string to be used for retrieving the pages following the first page. This method must be implemented in sub classes.

Specified by:

generateRemainingPagesQuery in interface PagingQueryProvider

Overrides:

generateRemainingPagesQuery in class SqlWindowingPagingQueryProvider

Parameters:

pageSize - number of rows to read per page

Returns:

query string

getSubQueryAlias

protected Object getSubQueryAlias()

Overrides:

getSubQueryAlias in class SqlWindowingPagingQueryProvider