java - 如何订阅 Eclipse 中的 OpenProject 事件？

Question

我正在开发 Eclipse 插件。

我一直在阅读如何使用界面 IResourceChangeListener 在项目即将关闭时订阅获取通知。 ，并使用 PRE_CLOSE 事件类型。以下文字摘自 Eclipse help :

Notifies listeners that a project is about to be closed. This event can be used to extract and save necessary information from the in-memory representation (e.g., session properties) of a project before it is closed. (When a project is closed, the in-memory representation is disposed). The workspace is locked (no resources can be updated) during this event. The event contains the project that is being closed.

我没有找到如何在项目即将打开时收到通知。

Answer 1

您可以创建自己的IResourceChangeListener 并通过IResourceDelta.OPEN 过滤delta 的种类，它只影响IProjects，并且在打开和关闭项目时都会触发:

public void resourceChanged(IResourceChangeEvent event) {
    if (event == null || event.getDelta() == null)
        return;
    event.getDelta().accept(new IResourceDeltaVisitor() {
        public boolean visit(IResourceDelta delta) throws CoreException {
            if (delta.getKind() == IResourceDelta.OPEN)
                final IResource resource = delta.getResource();
                if (!(resource instanceof IProject))
                    return;
               //do your stuff and check the project is opened or closed
        }
}

有用的链接: http://www.eclipse.org/articles/Article-Resource-deltas/resource-deltas.html