Eclipse“开放类型”对话框限于特定的界面 [英] Eclipse "Open Type" dialog restricted to a particular interface

问题描述

我正在尝试创建一个JavaUI.createTypeDialog（），它限制用户仅选择属于特定接口的类型。我该怎么做？

I'm trying to create a JavaUI.createTypeDialog() which restricts the user to selecting only types belonging to a particular interface. How could I do this?

推荐答案

此答案显示了如何获取特定类型的类型层次结构。您可以使用类似的处理来获取接口的TypeHierarchy，然后使用结果类型填充列表。

This answer shows how to obtain the type hierarchy for a particular type. You could use similar processing to obtain the TypeHierarchy for the interface, then populate the list with the resultant types.

IProject project; //currently selected project

//get the java project and locate the interface type
JavaProject javaProject = JavaCore.create(project);
IType myInterface = 
    javaProject.findType("MyInterface","name.seller.rich");

//get the sub types from the interface's type hierarchy
ITypeHierarchy hierarchy =
    myInterface .newTypeHierarchy(new NullProgressMonitor());

IType[] subTypes = hierarchy.getAllSubtypes(myInterface );

//do something with the sub types
...

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