NullResolvingExternalReferenceHandler (Ontopia)

java.lang.Object
- net.ontopia.topicmaps.utils.NullResolvingExternalReferenceHandler

All Implemented Interfaces:

ExternalReferenceHandlerIF
```
public class NullResolvingExternalReferenceHandler
extends Object
implements ExternalReferenceHandlerIF
```
PUBLIC: An implementation of ExternalReferenceHandlerIF that prevents the traversal of external references by returning null from all methods.

Since:

1.3.4

Constructor Summary

Constructors
Constructor Description

NullResolvingExternalReferenceHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`LocatorIF`	`externalTopic(LocatorIF parm1)`	PUBLIC: always returns null
`LocatorIF`	`externalTopicMap(LocatorIF parm1)`	PUBLIC: always returns null

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NullResolvingExternalReferenceHandler
```
public NullResolvingExternalReferenceHandler()
```
- Method Detail
  - externalTopicMap
```
public LocatorIF externalTopicMap(LocatorIF parm1)
```
    PUBLIC: always returns null
    
    Specified by:
    
    externalTopicMap in interface ExternalReferenceHandlerIF
    
    Returns:
    
    The locator which should be used to resolve the reference; if null is returned it will be interpreted as that the reference should not be traversed.
  - externalTopic
```
public LocatorIF externalTopic(LocatorIF parm1)
```
    PUBLIC: always returns null
    
    Specified by:
    
    externalTopic in interface ExternalReferenceHandlerIF
    
    Returns:
    
    The locator which should be used to resolve the reference; if null is returned it will be interpreted as that the reference should not be traversed.