Package net.ontopia.topicmaps.db2tm

Class MappingVirtualColumn

java.lang.Object

net.ontopia.topicmaps.db2tm.MappingVirtualColumn

All Implemented Interfaces:

ValueIF

public class MappingVirtualColumn
extends Object
implements ValueIF

INTERNAL: Virtual column that used a hash table to map from old value to new value. A default value can also be specified when no entry exists.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	cix
protected final String	colname
protected boolean	defaultSpecified
protected String	defaultValue
protected final String	inputColumn
protected final boolean	isVirtualColumn
protected final Relation	relation
protected Map<String,String>	table

Method Summary

Modifier and Type	Method	Description
void	addMapping(String from_value, String to_value)
String	getValue(String[] tuple)	INTERNAL: Returns the value of the virtual column.
void	setDefault(String defaultValue)

Methods inherited from class java.lang.Object

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

Field Details

relation

protected final Relation relation

colname

protected final String colname

table

protected Map<String,String> table

defaultValue

protected String defaultValue

defaultSpecified

protected boolean defaultSpecified

isVirtualColumn

protected final boolean isVirtualColumn

inputColumn

protected final String inputColumn

cix

protected int cix

Method Details

getValue

public String getValue(String[] tuple)

Description copied from interface: ValueIF

INTERNAL: Returns the value of the virtual column.

Specified by:

getValue in interface ValueIF

addMapping

public void addMapping(String from_value,
 String to_value)

setDefault

public void setDefault(String defaultValue)