Class SqlWindowingPagingQueryProvider
- java.lang.Object
- org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider
- org.springframework.batch.item.database.support.SqlWindowingPagingQueryProvider
- All Implemented Interfaces:
PagingQueryProvider
- Direct Known Subclasses:
Db2PagingQueryProvider
,DerbyPagingQueryProvider
,SqlServerPagingQueryProvider
,SybasePagingQueryProvider
public class SqlWindowingPagingQueryProvider extends AbstractSqlPagingQueryProvider
Generic Paging Query Provider using standard SQL:2003 windowing functions. These features are supported by DB2, Oracle, SQL Server 2005, Sybase and Apache Derby version 10.4.1.3- Since:
- 2.0
- Author:
- Thomas Risberg, Michael Minella
Constructor Summary
Constructors Constructor Description SqlWindowingPagingQueryProvider()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected java.lang.Object
extractTableAlias()
java.lang.String
generateFirstPageQuery(int pageSize)
Method generating the query string to be used for retrieving the first page.java.lang.String
generateJumpToItemQuery(int itemIndex, int pageSize)
Method generating the query string to be used for jumping to a specific item position.java.lang.String
generateRemainingPagesQuery(int pageSize)
Method generating the query string to be used for retrieving the pages following the first page.protected java.lang.String
getOrderedQueryAlias()
protected java.lang.String
getOverClause()
protected java.lang.String
getOverSubstituteClauseEnd()
protected java.lang.String
getOverSubstituteClauseStart()
protected java.lang.Object
getSubQueryAlias()
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
Method Detail
generateFirstPageQuery
public java.lang.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 interfacePagingQueryProvider
- Specified by:
generateFirstPageQuery
in classAbstractSqlPagingQueryProvider
- Parameters:
pageSize
- number of rows to read per page- Returns:
- query string
getOrderedQueryAlias
protected java.lang.String getOrderedQueryAlias()
getSubQueryAlias
protected java.lang.Object getSubQueryAlias()
extractTableAlias
protected java.lang.Object extractTableAlias()
generateRemainingPagesQuery
public java.lang.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 interfacePagingQueryProvider
- Specified by:
generateRemainingPagesQuery
in classAbstractSqlPagingQueryProvider
- Parameters:
pageSize
- number of rows to read per page- Returns:
- query string
generateJumpToItemQuery
public java.lang.String generateJumpToItemQuery(int itemIndex, int pageSize)
Description copied from class:AbstractSqlPagingQueryProvider
Method generating the query string to be used for jumping to a specific item position. This method must be implemented in sub classes.- Specified by:
generateJumpToItemQuery
in interfacePagingQueryProvider
- Specified by:
generateJumpToItemQuery
in classAbstractSqlPagingQueryProvider
- Parameters:
itemIndex
- the index of the item to jump topageSize
- number of rows to read per page- Returns:
- query string
getOverClause
protected java.lang.String getOverClause()
getOverSubstituteClauseStart
protected java.lang.String getOverSubstituteClauseStart()
getOverSubstituteClauseEnd
protected java.lang.String getOverSubstituteClauseEnd()