MappingVirtualColumn (Ontopia)

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 String`	`colname`
`protected boolean`	`defaultSpecified`
`protected String`	`defaultValue`
`protected String`	`inputColumn`
`protected boolean`	`isVirtualColumn`
`protected Relation`	`relation`
`protected Map<String,String>`	`table`

Method Summary

All Methods Instance Methods Concrete Methods
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 Detail

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 Detail

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)