com.mysql.cj.protocol

Interface Resultset

All Superinterfaces:

ProtocolEntity

All Known Subinterfaces:

ResultSetInternalMethods

All Known Implementing Classes:

NativeResultset, ResultSetImpl, UpdatableResultSet

public interface Resultset
extends ProtocolEntity

Represents protocol specific result set, eg., for native protocol, a ProtocolText::Resultset or ProtocolBinary::Resultset entity. See: http://dev.mysql.com/doc/internals/en/com-query-response.html#packet-ProtocolText::Resultset http://dev.mysql.com/doc/internals/en/binary-protocol-resultset.html

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Resultset.Concurrency
static class	Resultset.Type

Method Summary

Modifier and Type	Method and Description
void	clearNextResultset() Clears the reference to the next result set in a multi-result set "chain".
ColumnDefinition	getColumnDefinition()
Resultset	getNextResultset() Returns the next ResultSet in a multi-resultset "chain", if any, null if none exists.
int	getResultId() The id (used when profiling) to identify us
ResultsetRows	getRows()
java.lang.String	getServerInfo() Returns the server informational message returned from a DDL or DML statement (if any), or null if none.
long	getUpdateCount() Returns the update count for this result set (if one exists), otherwise -1.
long	getUpdateID() Returns the AUTO_INCREMENT value for the DDL/DML statement which created this result set.
boolean	hasRows() Does the result set contain rows, or is it the result of a DDL or DML statement?
void	initRowsWithMetadata() Set metadata of this Resultset to ResultsetRows it contains.
void	setColumnDefinition(ColumnDefinition metadata) Sometimes the driver doesn't have metadata before consuming the result set rows (because it's cached), or need to coerce the metadata returned by queries into that required by the particular specification (eg metadata returned by metadata queries into that required by the JDBC specification).
void	setNextResultset(Resultset nextResultset)

Method Detail

setColumnDefinition

void setColumnDefinition(ColumnDefinition metadata)

Sometimes the driver doesn't have metadata before consuming the result set rows (because it's cached), or need to coerce the metadata returned by queries into that required by the particular specification (eg metadata returned by metadata queries into that required by the JDBC specification). So it can call this to set it after the fact.

Parameters:

metadata - field-level metadata for the result set

getColumnDefinition

ColumnDefinition getColumnDefinition()

hasRows

boolean hasRows()

Does the result set contain rows, or is it the result of a DDL or DML statement?

Returns:

true if result set contains rows

getRows

ResultsetRows getRows()

initRowsWithMetadata

void initRowsWithMetadata()

Set metadata of this Resultset to ResultsetRows it contains.

getResultId

int getResultId()

The id (used when profiling) to identify us

Returns:

result id

setNextResultset

void setNextResultset(Resultset nextResultset)

Parameters:

nextResultset - Sets the next result set in the result set chain for multiple result sets.

getNextResultset

Resultset getNextResultset()

Returns the next ResultSet in a multi-resultset "chain", if any, null if none exists.

Returns:

the next Resultset

clearNextResultset

void clearNextResultset()

Clears the reference to the next result set in a multi-result set "chain".

getUpdateCount

long getUpdateCount()

Returns the update count for this result set (if one exists), otherwise -1.

Returns:

return the update count for this result set (if one exists), otherwise -1.

getUpdateID

long getUpdateID()

Returns the AUTO_INCREMENT value for the DDL/DML statement which created this result set.

Returns:

the AUTO_INCREMENT value for the DDL/DML statement which created this result set.

getServerInfo

java.lang.String getServerInfo()

Returns the server informational message returned from a DDL or DML statement (if any), or null if none.

Returns:

the server informational message