类 PostgresPagingQueryProvider
- java.lang.Object
- org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider
- org.springframework.batch.item.database.support.PostgresPagingQueryProvider
- 所有已实现的接口:
PagingQueryProvider
public class PostgresPagingQueryProvider extends AbstractSqlPagingQueryProvider
Postgres implementation of aPagingQueryProviderusing database specific features. When using the groupClause, this implementation expects all select fields not used in aggregate functions to be included in the groupClause (the provider does not add them for you).- 从以下版本开始:
- 2.0
- 作者:
- Thomas Risberg, Michael Minella
构造器概要
构造器 构造器 说明 PostgresPagingQueryProvider()
方法概要
所有方法 实例方法 具体方法 修饰符和类型 方法 说明 java.lang.StringgenerateFirstPageQuery(int pageSize)Method generating the query string to be used for retrieving the first page.java.lang.StringgenerateJumpToItemQuery(int itemIndex, int pageSize)Method generating the query string to be used for jumping to a specific item position.java.lang.StringgenerateRemainingPagesQuery(int pageSize)Method generating the query string to be used for retrieving the pages following the first page.从类继承的方法 org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider
getFromClause, getGroupClause, getParameterCount, getSelectClause, getSortKeyPlaceHolder, getSortKeys, getSortKeysWithoutAliases, getWhereClause, init, isUsingNamedParameters, setFromClause, setGroupClause, setSelectClause, setSortKeys, setWhereClause
构造器详细资料
PostgresPagingQueryProvider
public PostgresPagingQueryProvider()
方法详细资料
generateFirstPageQuery
public java.lang.String generateFirstPageQuery(int pageSize)
从类复制的说明:AbstractSqlPagingQueryProviderMethod generating the query string to be used for retrieving the first page. This method must be implemented in sub classes.- 指定者:
generateFirstPageQuery在接口中PagingQueryProvider- 指定者:
generateFirstPageQuery在类中AbstractSqlPagingQueryProvider- 参数:
pageSize- number of rows to read per page- 返回:
- query string
generateRemainingPagesQuery
public java.lang.String generateRemainingPagesQuery(int pageSize)
从类复制的说明:AbstractSqlPagingQueryProviderMethod generating the query string to be used for retrieving the pages following the first page. This method must be implemented in sub classes.- 指定者:
generateRemainingPagesQuery在接口中PagingQueryProvider- 指定者:
generateRemainingPagesQuery在类中AbstractSqlPagingQueryProvider- 参数:
pageSize- number of rows to read per page- 返回:
- query string
generateJumpToItemQuery
public java.lang.String generateJumpToItemQuery(int itemIndex, int pageSize)
从类复制的说明:AbstractSqlPagingQueryProviderMethod generating the query string to be used for jumping to a specific item position. This method must be implemented in sub classes.- 指定者:
generateJumpToItemQuery在接口中PagingQueryProvider- 指定者:
generateJumpToItemQuery在类中AbstractSqlPagingQueryProvider- 参数:
itemIndex- the index of the item to jump topageSize- number of rows to read per page- 返回:
- query string