|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.biojava.utils.ChangeListener.AlwaysVetoListener
public static class ChangeListener.AlwaysVetoListener
An implementation that always vetoes everything.
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 | |
---|---|
protected |
ChangeListener.AlwaysVetoListener()
Private constructor. |
Method Summary | |
---|---|
void |
postChange(ChangeEvent cev)
Called when a change has just taken place. |
void |
preChange(ChangeEvent cev)
Called before a change takes place. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
protected ChangeListener.AlwaysVetoListener()
Method Detail |
---|
public void preChange(ChangeEvent cev) throws ChangeVetoException
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.
preChange
in interface ChangeListener
cev
- An event encapsulating the change which is about
to take place.
ChangeVetoException
- Description of Exceptionpublic void postChange(ChangeEvent cev)
ChangeListener
Called when a change has just taken place.
This method is the place to perform any behavior in response to the change event.
postChange
in interface ChangeListener
cev
- An event encapsulating the change which has
occured.
AssertionFailure
- if this is called, as preChange should have
vetoed any change already
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |