SequenceViewerExtension.PropertyRetrieverAndEditor.DiscardReferencesCallback (Geneious Public API)

Enclosing class:

SequenceViewerExtension.PropertyRetrieverAndEditor
```
public static interface SequenceViewerExtension.PropertyRetrieverAndEditor.DiscardReferencesCallback
```
Used for indicating that references to values returned from SequenceViewerExtension.PropertyRetrieverAndEditor.getVisibleAnnotations(PropertyRetrieverAndEditor.DiscardReferencesCallback) must be discarded.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`discardReferences(boolean waitUntilReferencesDiscardedBeforeReturning)`	indicates that values returned from a previous call to `SequenceViewerExtension.PropertyRetrieverAndEditor.getVisibleAnnotations(PropertyRetrieverAndEditor.DiscardReferencesCallback)` are about to become invalidated and any references to them must be discarded.

- Method Detail
  - discardReferences
```
void discardReferences(boolean waitUntilReferencesDiscardedBeforeReturning)
```
    indicates that values returned from a previous call to SequenceViewerExtension.PropertyRetrieverAndEditor.getVisibleAnnotations(PropertyRetrieverAndEditor.DiscardReferencesCallback) are about to become invalidated and any references to them must be discarded. The sequence viewer will first call this method with waitUntilReferencesDiscardedBeforeReturning==false on all listeners to indicate they should notify any background threads to cancel. Then the sequence viewer will call this method with waitUntilReferencesDiscardedBeforeReturning==true on all listeners, and each listener should block until any background tasks have finished cancelling.
    
    Parameters:
    
    waitUntilReferencesDiscardedBeforeReturning - true if the method should block until the references have been discarded.