Package scriptella.util

Class ColumnsMap

java.lang.Object

scriptella.util.ColumnsMap

public class ColumnsMap
extends Object

Represents a map of columns accessible by name and index.

This class is useful for queries producing results similar to ResultSet.

Version:

1.0

Author:

Fyodor Kupolov

Constructor Summary

Constructors

Constructor	Description
ColumnsMap()

Method Summary

Modifier and Type	Method	Description
Map<Integer,String>	asIndexNameMap()	Converts this mapping to index->name column map.
Integer	find(String name)	Finds column index by name.
void	registerColumn(String name, int index)	Registers column to for later lookup.

Methods inherited from class java.lang.Object

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

Constructor Details

ColumnsMap

public ColumnsMap()

Method Details

registerColumn

public void registerColumn(String name,
 int index)
                    throws IllegalArgumentException

Registers column to for later lookup.

Parameters:

name - column name.

index - positive column index.

Throws:

IllegalArgumentException - if index has illegal value

find

public Integer find(String name)

Finds column index by name.

Parameters:

name - column name.

Returns:

column index, or null if column not found.

asIndexNameMap

public Map<Integer,String> asIndexNameMap()

Converts this mapping to index->name column map.

Returns:

index->name column map.