IntegerBinding自定义绑定计算

继承IntegerBinding

class MyIntegerBinding extends IntegerBinding{  
    private SimpleIntegerProperty value = new SimpleIntegerProperty(0);  

    public MyIntegerBinding(Integer value){  
        this.bind(this.value);  
        this.value.set(value);  
    }  

    @Override  
    public Integer getValue() {  
        return value.get();  
    }  

    public SimpleIntegerProperty valueProperty() {  
        return value;  
    }  

    public void setValue(Integer value) {  
        this.value.set(value);  
    }  

    /**  
  * 自定义绑定计算  
  * @return 计算结果  
  */  
    @Override  
    protected int computeValue() {  
        return this.value.get()*4;  
    }  
}

测试代码

SimpleIntegerProperty integerProperty = new SimpleIntegerProperty(10);  
MyIntegerBinding integerBinding = new MyIntegerBinding(20);  
System.out.println("integerProperty.get() = " + integerProperty.get());  
System.out.println("integerBinding.get() = " + integerBinding.get());  
integerProperty.bind(integerBinding);  
System.out.println("integerProperty.get() = " + integerProperty.get());  
System.out.println("integerBinding.get() = " + integerBinding.get());  
integerBinding.setValue(35);  
System.out.println("integerProperty.get() = " + integerProperty.get());  
System.out.println("integerBinding.get() = " + integerBinding.get());

integerProperty.get() = 10
integerBinding.get() = 80
integerProperty.get() = 80
integerBinding.get() = 80
integerProperty.get() = 140
integerBinding.get() = 140

# IntegerBinding自定义绑定计算

IntegerBinding自定义绑定计算