java SimpleStringProperty set() 与 setValue()
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SimpleStringProperty set() vs. setValue()
提问by stefan.at.wpf
What is the difference between set(String)and setValue(String)in the SimpleStringPropertyclass?
之间有什么区别set(String)，并setValue(String)在SimpleStringProperty上课吗？
I know that set(String)is derived from StringPropertyBase, but this makes me even more wonder, why there additionally is setValue(String)?
我知道它set(String)是从 派生的StringPropertyBase，但这让我更加疑惑，为什么还有setValue(String)？
回答by Sergey Grinev
set/setValueand get/getValuemethods pairs exist to align Object properties with primitive types properties like BooleanPropertyor DoubleProperty:
set/setValue和get/getValue方法对存在以将对象属性与基本类型属性对齐，例如BooleanProperty或DoubleProperty：
BooleanProperty:
布尔属性：
void set(boolean value)
void setValue(java.lang.Boolean v)
DoubleProperty:
双重财产：
void set(double value)
void setValue(java.lang.Number v)
In these property classes ___Valuemethods work with corresponding to type objects while direct methods work with primitive types.
在这些属性类中，___Value方法与类型对象相对应，而直接方法则与原始类型一起工作。
Looking in the code you may find a bit of a difference in the logic. For example, DoubleProperty#setValue(null)is equal to DoubleProperty#set(0.0)(which was required by binding). So generally I'd advise to use set/get methods and leave setValue/getValue to binding needs as they may incorporate additional logic.
查看代码，您可能会发现逻辑上的一些差异。例如，DoubleProperty#setValue(null)等于DoubleProperty#set(0.0)（这是绑定所必需的）。所以通常我建议使用 set/get 方法并将 setValue/getValue 留给绑定需求，因为它们可能包含额外的逻辑。
For Object/String properties there is no difference between set and setValue methods.
对于对象/字符串属性，set 和 setValue 方法之间没有区别。
回答by Alexander Kirov
StringProperty.java :
StringProperty.java ：
@Override
public void setValue(String v) {
set(v);
}
StringPropertyBase.java:
StringPropertyBase.java：
@Override
public void set(String newValue) {
if (isBound()) {
throw new java.lang.RuntimeException("A bound value cannot be set.");
}
if ((value == null)? newValue != null : !value.equals(newValue)) {
value = newValue;
markInvalid();
}
}
In common case, you can open sources from open javafx and see that.
通常情况下，您可以从 open javafx 打开源代码并查看。
