程序包 com.mysql.cj.xdevapi

类 SqlMultiResult

java.lang.Object

com.mysql.cj.xdevapi.SqlMultiResult

所有已实现的接口:

ResultStreamer, QueryResult, FetchResult<Row>, InsertResult, Result, RowResult, SqlResult, Iterable<Row>, Iterator<Row>

public class SqlMultiResult
extends Object
implements SqlResult, ResultStreamer

SqlResult representing a multiple result sets.

构造器概要

构造器

构造器	说明
SqlMultiResult(java.util.function.Supplier<SqlResult> resultStream)	Constructor.

方法概要

修饰符和类型	方法	说明
long	count()	How many items are in this result?
List<Row>	fetchAll()	Create a list of all elements in the result forcing internal buffering.
void	finishStreaming()	Finish the result streaming.
long	getAffectedItemsCount()	Get the count of affected items from manipulation statements.
Long	getAutoIncrementValue()	Get the auto-increment value if one was generated from a row insert statement.
int	getColumnCount()	Count of columns.
List<String>	getColumnNames()	Names of columns.
List<Column>	getColumns()	Metadata.
Iterator<Warning>	getWarnings()	Get warnings generated during statement execution.
int	getWarningsCount()	Get the number of warnings generated during statement execution.
boolean	hasData()	Does this result have data?
boolean	hasNext()
Row	next()
boolean	nextResult()	Move to the next result.

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.mysql.cj.xdevapi.FetchResult

fetchOne, iterator

从接口继承的方法 java.lang.Iterable

forEach, spliterator

从接口继承的方法 java.util.Iterator

forEachRemaining, remove

构造器详细资料

SqlMultiResult

public SqlMultiResult(java.util.function.Supplier<SqlResult> resultStream)

Constructor.

参数:

resultStream - Supplies the result stream depending on query type. Could be SqlSingleResult, SqlUpdateResult etc.

方法详细资料

nextResult

public boolean nextResult()

从接口复制的说明: SqlResult

Move to the next result. This method has no effect after returning false for the first time.

指定者:

nextResult 在接口中 SqlResult

返回:

was there a next result that we moved to?

finishStreaming

public void finishStreaming()

从接口复制的说明: ResultStreamer

Finish the result streaming. This happens if a new command is started or the warnings/etc are requested. This is safe to call multiple times and only has an effect the first time.

指定者:

finishStreaming 在接口中 ResultStreamer

hasData

public boolean hasData()

从接口复制的说明: FetchResult

Does this result have data? This indicates that the result was produced from a data-returning query. It does not indicate whether there are more than 0 rows in the result.

指定者:

hasData 在接口中 FetchResult<Row>

返回:

true if has data

getAffectedItemsCount

public long getAffectedItemsCount()

从接口复制的说明: Result

Get the count of affected items from manipulation statements. This method forces internal buffering of the result.

指定者:

getAffectedItemsCount 在接口中 Result

返回:

count

getAutoIncrementValue

public Long getAutoIncrementValue()

从接口复制的说明: InsertResult

Get the auto-increment value if one was generated from a row insert statement.

指定者:

getAutoIncrementValue 在接口中 InsertResult

指定者:

getAutoIncrementValue 在接口中 SqlResult

返回:

auto-increment value

getWarningsCount

public int getWarningsCount()

从接口复制的说明: Result

Get the number of warnings generated during statement execution. This method forces internal buffering of the result.

指定者:

getWarningsCount 在接口中 Result

返回:

number of warnings

getWarnings

public Iterator<Warning> getWarnings()

从接口复制的说明: Result

Get warnings generated during statement execution. This method forces internal buffering of the result.

指定者:

getWarnings 在接口中 Result

返回:

iterator over warnings

getColumnCount

public int getColumnCount()

从接口复制的说明: RowResult

Count of columns.

指定者:

getColumnCount 在接口中 RowResult

返回:

count

getColumns

public List<Column> getColumns()

从接口复制的说明: RowResult

Metadata.

指定者:

getColumns 在接口中 RowResult

返回:

list of result Column objects

getColumnNames

public List<String> getColumnNames()

从接口复制的说明: RowResult

Names of columns.

指定者:

getColumnNames 在接口中 RowResult

返回:

list of result column names

count

public long count()

从接口复制的说明: FetchResult

How many items are in this result? This method forces internal buffering of the entire result.

指定者:

count 在接口中 FetchResult<Row>

返回:

number of elements in result

fetchAll

public List<Row> fetchAll()

从接口复制的说明: FetchResult

Create a list of all elements in the result forcing internal buffering.

指定者:

fetchAll 在接口中 FetchResult<Row>

返回:

list of result elements

next

public Row next()

指定者:

next 在接口中 Iterator<Row>

hasNext

public boolean hasNext()

指定者:

hasNext 在接口中 Iterator<Row>