net.ontopia.topicmaps.db2tm
Class FunctionVirtualColumn

java.lang.Object
  net.ontopia.topicmaps.db2tm.FunctionVirtualColumn

All Implemented Interfaces:

ValueIF

public class FunctionVirtualColumn
extends java.lang.Object
implements ValueIF

INTERNAL: Virtual column that uses a function to map from old value to new value.

Field Summary

protected java.lang.String	colname
protected java.lang.String	fullMethodName
protected java.lang.reflect.Method	method
protected java.util.List	params
protected Relation	relation

Constructor Summary

FunctionVirtualColumn(Relation relation, java.lang.String colname, java.lang.String fullMethodName)

Method Summary

void	addParameter(java.lang.String paramValue)
void	compile()
java.lang.String	getColumnName()
java.lang.String	getValue(java.lang.String[] tuple) INTERNAL: Returns the value of the virtual column.

Methods inherited from class java.lang.Object

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

Field Detail

relation

protected Relation relation

colname

protected java.lang.String colname

fullMethodName

protected java.lang.String fullMethodName

method

protected java.lang.reflect.Method method

params

protected java.util.List params

Constructor Detail

FunctionVirtualColumn

public FunctionVirtualColumn(Relation relation,
                             java.lang.String colname,
                             java.lang.String fullMethodName)

Method Detail

getColumnName

public java.lang.String getColumnName()

compile

public void compile()

getValue

public java.lang.String getValue(java.lang.String[] tuple)

Description copied from interface: ValueIF

INTERNAL: Returns the value of the virtual column.

Specified by:

getValue in interface ValueIF

addParameter

public void addParameter(java.lang.String paramValue)