org.tentackle.persist

Class ResultSetSkipBlock

java.lang.Object

org.tentackle.persist.ResultSetSkipBlock

public class ResultSetSkipBlock
extends Object

A subset of the columns returned by a ResultSetWrapper.

Author:

harald

Constructor Summary

Constructors

Constructor and Description
ResultSetSkipBlock(ResultSetWrapper rs, int skippedColumns) Creates a skip block.

Method Summary

Modifier and Type	Method and Description
void	applyColumnIndex(int ndx) Applies the used column index to this skip block.
int	findColumn(String name) Maps the given column name to its column index.
int	getMaxColumnIndex() Gets the highest used column index. This will be the skippedColumns of the next skip block.
int	getSkippedColumns() Gets the number of columns skipped in the result set.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetSkipBlock

public ResultSetSkipBlock(ResultSetWrapper rs,
                          int skippedColumns)

Creates a skip block.

Parameters:

rs - the result set

skippedColumns - the number of columns skipped

Method Detail

getSkippedColumns

public int getSkippedColumns()

Gets the number of columns skipped in the result set.

Returns:

the number of skipped columns, 0 if no column skipped

getMaxColumnIndex

public int getMaxColumnIndex()

Gets the highest used column index.
This will be the skippedColumns of the next skip block.

Returns:

the highest used index.

findColumn

public int findColumn(String name)

Maps the given column name to its column index.

If the result set is in skip mode, the first column with that name is found after having skipped some columns according to the last invocation of ResultSetWrapper.skip(). Otherwise the standard JDBC-implementation is used.

Parameters:

name - the column name

Returns:

the index in the result set

applyColumnIndex

public void applyColumnIndex(int ndx)

Applies the used column index to this skip block.

Parameters:

ndx - the used column index