GWT 中方法匿名类的问题
我正在制作一个类似于 Swing 框架的 GWT 框架。
在 GWT 中，我有一种方法，在方法中创建一个匿名类，但问题是当该方法执行时，执行控制不会转到匿名类，而是会跳过它。
该方法执行完毕后，控制权将转移给匿名类。这个东西在 Swing 中运行得非常好。
public void model(){
System.out.println("This line is executing");
DataListModel model = new DataListModel() {
public void setRecords(List records) {
System.out.println("I see this line after model() executes completely");
int i = 0;
records = new LinkedList(records);
}
}
System.out.println("this line is executed without executing DataListModel.setRecords()");
}
I am making a GWT framework similar to Swing framework.
In GWT, I have one method in which I am making a anonymous class in method, but the problem is when this method executes, the execution control does not go to anonymous class instead it skips over it.
After this method executes completely, the control is transfered to the anonymous class. And this thing is working perfectly fine in Swing.
public void model(){
System.out.println("This line is executing");
DataListModel model = new DataListModel() {
public void setRecords(List records) {
System.out.println("I see this line after model() executes completely");
int i = 0;
records = new LinkedList(records);
}
}
System.out.println("this line is executed without executing DataListModel.setRecords()");
}
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问题在于
DataListModel model = new DataListModel...行实际上并未执行任何操作。它会创建一个新实例，但除非DataListModel构造函数调用setRecords（它可能不会）或者您在中使用model变量以某种方式调用setRecords，setRecords将永远不会被调用。The problem is that the
DataListModel model = new DataListModel...line doesn't actually execute anything. It creates a new instance, but unless either theDataListModelconstructor callssetRecords(which it probably doesn't) or you use themodelvariable in some way that callssetRecords,setRecordswill never be called.