- Enclosing class:
 
- KeyEditorField
 
- Functional Interface:
 
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
 
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Method Summary
Provides a way to prevent keys from being accepted.
 
 
 
 
 
- 
Method Details
- 
validate
Provides a way to prevent keys from being accepted.
- Parameters:
 
node - The node that is being edited 
oldKey - The previous key 
newKey - The new key, or null if the user cancelled the interaction 
- Returns:
 
- A validation error message, or null if the value is acceptable