Package org.h2.result

Class ResultRemote

java.lang.Object

org.h2.result.FetchedResult

org.h2.result.ResultRemote

All Implemented Interfaces:

AutoCloseable, ResultInterface

public final class ResultRemote
extends FetchedResult

The client side part of a result set that is kept on the server. In many cases, the complete data is kept on the client side, but for large results only a subset is in-memory.

Constructor Summary

Constructors

Constructor	Description
ResultRemote(SessionRemote session, Transfer transfer, int id, int columnCount, int fetchSize)

Method Summary

Modifier and Type	Method	Description
void	close()	Close the result and delete any temporary files
String	getAlias(int i)	Get the column alias name for the column.
String	getColumnName(int i)	Get the column name.
TypeInfo	getColumnType(int i)	Get the column data type.
int	getFetchSize()	Get the current fetch size for this result set.
int	getNullable(int i)	Check if this column is nullable.
long	getRowCount()	Get the number of rows in this object.
String	getSchemaName(int i)	Get the schema name for the column, if one exists.
String	getTableName(int i)	Get the table name for the column, if one exists.
int	getVisibleColumnCount()	Get the number of visible columns.
boolean	hasNext()	Check if this result has more rows to fetch.
boolean	isClosed()	Check if this result set is closed.
boolean	isIdentity(int i)	Check if this is an identity column.
boolean	isLazy()	Check if this a lazy execution result.
void	reset()	Go to the beginning of the result, that means before the first row.
void	setFetchSize(int fetchSize)	Set the fetch size for this result set.
String	toString()

Methods inherited from class org.h2.result.FetchedResult

createShallowCopy, currentRow, getRowId, isAfterLast, needToClose, next

Methods inherited from class java.lang.Object

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

Constructor Details

ResultRemote

public ResultRemote(SessionRemote session,
 Transfer transfer,
 int id,
 int columnCount,
 int fetchSize)
             throws IOException

Throws:

IOException

Method Details

isLazy

public boolean isLazy()

Description copied from interface: ResultInterface

Check if this a lazy execution result.

Returns:

true if it is a lazy result

getAlias

public String getAlias(int i)

Description copied from interface: ResultInterface

Get the column alias name for the column.

Parameters:

i - the column number (starting with 0)

Returns:

the alias name

getSchemaName

public String getSchemaName(int i)

Description copied from interface: ResultInterface

Get the schema name for the column, if one exists.

Parameters:

i - the column number (starting with 0)

Returns:

the schema name or null

getTableName

public String getTableName(int i)

Description copied from interface: ResultInterface

Get the table name for the column, if one exists.

Parameters:

i - the column number (starting with 0)

Returns:

the table name or null

getColumnName

public String getColumnName(int i)

Description copied from interface: ResultInterface

Get the column name.

Parameters:

i - the column number (starting with 0)

Returns:

the column name

getColumnType

public TypeInfo getColumnType(int i)

Description copied from interface: ResultInterface

Get the column data type.

Parameters:

i - the column number (starting with 0)

Returns:

the column data type

isIdentity

public boolean isIdentity(int i)

Description copied from interface: ResultInterface

Check if this is an identity column.

Parameters:

i - the column number (starting with 0)

Returns:

true for identity columns

getNullable

public int getNullable(int i)

Description copied from interface: ResultInterface

Check if this column is nullable.

Parameters:

i - the column number (starting with 0)

Returns:

Column.NULLABLE_*

reset

public void reset()

Description copied from interface: ResultInterface

Go to the beginning of the result, that means before the first row.

getVisibleColumnCount

public int getVisibleColumnCount()

Description copied from interface: ResultInterface

Get the number of visible columns. More columns may exist internally for sorting or grouping.

Returns:

the number of columns

getRowCount

public long getRowCount()

Description copied from interface: ResultInterface

Get the number of rows in this object.

Returns:

the number of rows

hasNext

public boolean hasNext()

Description copied from interface: ResultInterface

Check if this result has more rows to fetch.

Returns:

true if it has

close

public void close()

Description copied from interface: ResultInterface

Close the result and delete any temporary files

toString

public String toString()

Overrides:

toString in class Object

getFetchSize

public int getFetchSize()

Description copied from interface: ResultInterface

Get the current fetch size for this result set.

Returns:

the fetch size

setFetchSize

public void setFetchSize(int fetchSize)

Description copied from interface: ResultInterface

Set the fetch size for this result set.

Parameters:

fetchSize - the new fetch size

isClosed

public boolean isClosed()

Description copied from interface: ResultInterface

Check if this result set is closed.

Returns:

true if it is