com.dangdang.ddframe.rdb.sharding.merger.groupby

类 GroupByStreamResultSetMerger

java.lang.Object

com.dangdang.ddframe.rdb.sharding.merger.common.AbstractStreamResultSetMerger

com.dangdang.ddframe.rdb.sharding.merger.orderby.OrderByStreamResultSetMerger

com.dangdang.ddframe.rdb.sharding.merger.groupby.GroupByStreamResultSetMerger

所有已实现的接口:

ResultSetMerger

public final class GroupByStreamResultSetMerger
extends OrderByStreamResultSetMerger

Stream merger for group by.

作者:

zhangliang

构造器概要

构造器

构造器和说明
GroupByStreamResultSetMerger(Map<String,Integer> labelAndIndexMap, List<ResultSet> resultSets, SelectStatement selectStatement)

方法概要

方法

限定符和类型	方法和说明
Object	getCalendarValue(int columnIndex, Class<?> type, Calendar calendar) Get calendar value.
Object	getCalendarValue(String columnLabel, Class<?> type, Calendar calendar) Get calendar value.
Object	getValue(int columnIndex, Class<?> type) Get data value.
Object	getValue(String columnLabel, Class<?> type) Get data value.
boolean	next() iterate next data.

从类继承的方法 com.dangdang.ddframe.rdb.sharding.merger.common.AbstractStreamResultSetMerger

getCurrentResultSet, getInputStream, getInputStream, wasNull

从类继承的方法 java.lang.Object

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

构造器详细资料

GroupByStreamResultSetMerger

public GroupByStreamResultSetMerger(Map<String,Integer> labelAndIndexMap,
                            List<ResultSet> resultSets,
                            SelectStatement selectStatement)
                             throws SQLException

抛出:

SQLException

方法详细资料

next

public boolean next()
             throws SQLException

从接口复制的说明: ResultSetMerger

iterate next data.

指定者:

next 在接口中 ResultSetMerger

覆盖:

next 在类中 OrderByStreamResultSetMerger

返回:

has next data

抛出:

SQLException - SQL Exception

getValue

public Object getValue(int columnIndex,
              Class<?> type)
                throws SQLException

从接口复制的说明: ResultSetMerger

Get data value.

指定者:

getValue 在接口中 ResultSetMerger

覆盖:

getValue 在类中 AbstractStreamResultSetMerger

参数:

columnIndex - column index

type - class type of data value

返回:

data value

抛出:

SQLException - SQL Exception

getValue

public Object getValue(String columnLabel,
              Class<?> type)
                throws SQLException

从接口复制的说明: ResultSetMerger

Get data value.

指定者:

getValue 在接口中 ResultSetMerger

覆盖:

getValue 在类中 AbstractStreamResultSetMerger

参数:

columnLabel - column label

type - class type of data value

返回:

data value

抛出:

SQLException - SQL Exception

getCalendarValue

public Object getCalendarValue(int columnIndex,
                      Class<?> type,
                      Calendar calendar)
                        throws SQLException

从接口复制的说明: ResultSetMerger

Get calendar value.

指定者:

getCalendarValue 在接口中 ResultSetMerger

覆盖:

getCalendarValue 在类中 AbstractStreamResultSetMerger

参数:

columnIndex - column index

type - class type of data value

calendar - calendar

返回:

calendar value

抛出:

SQLException - SQL Exception

getCalendarValue

public Object getCalendarValue(String columnLabel,
                      Class<?> type,
                      Calendar calendar)
                        throws SQLException

从接口复制的说明: ResultSetMerger

Get calendar value.

指定者:

getCalendarValue 在接口中 ResultSetMerger

覆盖:

getCalendarValue 在类中 AbstractStreamResultSetMerger

参数:

columnLabel - column label

type - class type of data value

calendar - calendar

返回:

calendar value

抛出:

SQLException - SQL Exception