ValueExtractor (ControlsFX Project 11.0.2)

java.lang.Object
- org.controlsfx.tools.ValueExtractor

public class ValueExtractor
extends Object

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`addObservableValueExtractor(Predicate<Control> test, Callback<Control,ObservableValue<?>> extract)`	Add "obervable value extractor" for custom controls.
`static void`	`addValueExtractor(Predicate<Node> test, Callback<Node,Object> extractor)`
`static Optional<Callback<Control,ObservableValue<?>>>`	`getObservableValueExtractor(Control c)`
`static Object`	`getValue(Node n)`	Attempts to return a value for the given Node.

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

- Method Detail
  - addObservableValueExtractor
```
public static void addObservableValueExtractor(Predicate<Control> test,
                                               Callback<Control,ObservableValue<?>> extract)
```
    Add "obervable value extractor" for custom controls.
    
    Parameters:
    
    test - applicability test
    
    extract - extraction of observable value
  - getObservableValueExtractor
```
public static final Optional<Callback<Control,ObservableValue<?>>> getObservableValueExtractor(Control c)
```
  - addValueExtractor
```
public static void addValueExtractor(Predicate<Node> test,
                                     Callback<Node,Object> extractor)
```
  - getValue
```
public static Object getValue(Node n)
```
    Attempts to return a value for the given Node. This is done by checking the map of value extractors, contained within this class. This map contains value extractors for common UI controls, but more extractors can be added by calling addObservableValueExtractor(Predicate, Callback).
    
    Parameters:
    
    n - The node from whom a value will hopefully be extracted.
    
    Returns:
    
    The value of the given node.