如何在JDT TypeHierarchy中设置区域（= java元素集）参数？

Question

http://www.google.com/url?sa=t&rct=j&q=jdt_fundamentals&source=web&cd=1&ved=0CDIQFjAA&url=http%3A%2F%2Fwww.eclipsecon .org％2F2008％2Fsub％2Fattachments％2FJDT_fundamentals.ppt“＆gt; JDT Tutorial使用JDT获取类型层次结构的示例代码。

如何设置区域（= java元素集）参数？ 当我有代码A有SubClass B和SuperClass C.如何设置区域？

Answer 1

在阅读IRegion Javadocs和Using Eclipse's JDT, how does one get an IType from a class name?后，我得到的印象是您应该可以创建这样的区域：

final IJavaProject project = ...;
final IProgressMonitor monitor = ...;
final IRegion region = JavaCore.newRegion();
region.add(project.findType("some.packagename.B"));
final ITypeHierarchy typeHierarchy = project.newTypeHierarchy(region, monitor);

Answer 2

我从this site提示的这段代码很好用。

IRegion region = JavaCore.newRegion();
for (IJavaElement i : javaProject.getPackageFragmentRoots())
{
    String elementName = i.getElementName();
    if (!elementName.endsWith("jar") && !elementName.endsWith("zip"))
        region.add(i);
    }

    NullProgressMonitor progressMonitor = new  NullProgressMonitor();

    // for getting a class hierarchy for type
    ITypeHierarchy typeHierarchy= type.newTypeHierarchy(progressMonitor);
    // for getting all the class hierarchies of the region in the project
    ITypeHierarchy typeHierarchy= javaProject.newTypeHierarchy(region, progressMonitor);
}

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