Package org.biojava.utils
Class ChangeAdapter
java.lang.Object
org.biojava.utils.ChangeAdapter
- All Implemented Interfaces:
EventListener
,ChangeListener
- Direct Known Subclasses:
ChangeListener.ChangeEventRecorder
This is a ChangeListener that ignores everything. This is a useful
base-class for throw-a-way ChangeListener objects in a similar vein to
MouseAdapter etc.
- Author:
- Matthew Pocock, Keith James (docs)
-
Nested Class Summary
Nested classes/interfaces inherited from interface org.biojava.utils.ChangeListener
ChangeListener.AlwaysVetoListener, ChangeListener.ChangeEventRecorder, ChangeListener.LoggingListener
-
Field Summary
Fields inherited from interface org.biojava.utils.ChangeListener
ALWAYS_VETO, LOG_TO_OUT
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Called when a change has just taken place.void
preChange
(ChangeEvent ce) Called before a change takes place.
-
Constructor Details
-
ChangeAdapter
public ChangeAdapter()
-
-
Method Details
-
preChange
Description copied from interface:ChangeListener
Called before a change takes place.
This is your chance to stop the change by throwing a ChangeVetoException. This method does not indicate that the change will definitely take place, so it is not recomended that you take any positive action within this handler.
- Specified by:
preChange
in interfaceChangeListener
- Parameters:
ce
- An event encapsulating the change which is about to take place.- Throws:
ChangeVetoException
- Description of ExceptionChangeVetoException
- if the receiver does not wish this change to occur at this time.
-
postChange
Description copied from interface:ChangeListener
Called when a change has just taken place.
This method is the place to perform any behavior in response to the change event.
- Specified by:
postChange
in interfaceChangeListener
- Parameters:
ce
- An event encapsulating the change which has occured.
-