What is the best way for callback when some file changed

已回答

创建于 2019年08月06日 18:13

Dear all please tell me the best way to handle (callback), when some file changed in project.
My current usage like this:

public void activateListeners(Project project) {
    // Project Message Bus
    MessageBus messageBus = project.getMessageBus();
    // Virtual File change handlers
    messageBus.connect().subscribe(VirtualFileManager.VFS_CHANGES, new BulkFileListener() {
        @Override
        public void after(@NotNull List<? extends VFileEvent> events) {
            for (VFileEvent event : events) {
                System.out.println("Project Service After Event Invoked ..." + event);
            }
        }
    });
}

Same question here
Thanks in advance

2 条评论

Yann Cebron

创建于 2019年08月08日 10:22

Hayk Hovhannisyan

创建于 2019年08月08日 15:37

The equivalent with asynchronous listener will be:

VirtualFileManager.getInstance().addAsyncFileListener(new AsyncFileListener() {
    @Nullable
    @Override
    public ChangeApplier prepareChange(@NotNull List<? extends VFileEvent> events) {
         for (VFileEvent event : events) {
             System.out.println("Project Service After Event Invoked ..." + event);
        }
        return null;
    }
}, new Disposable() {
    @Override
    public void dispose() {
        System.out.println("Disposing .......");
    }
});

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