import org.eclipse.jface.text.contentassist.ICompletionListener; //导入依赖的package包/类
protected void setContentAssistProcessor(ContentAssistant assistant, SourceViewerConfiguration configuration, ISourceViewer sourceViewer) {
	if (contentAssistProcessor != null) {
		for(String contentType: configuration.getConfiguredContentTypes(sourceViewer)) {
			assistant.setContentAssistProcessor(contentAssistProcessor, contentType);
		}
		if (contentAssistProcessor instanceof ICompletionListener) {
			assistant.setRepeatedInvocationMode(true);
			assistant.setStatusLineVisible(true);
			assistant.addCompletionListener((ICompletionListener) contentAssistProcessor);
		}
	}
}
 

import org.eclipse.jface.text.contentassist.ICompletionListener; //导入依赖的package包/类
public ICompletionListener getCompletionListener() {
	return this;
}
 

import org.eclipse.jface.text.contentassist.ICompletionListener; //导入依赖的package包/类
public ICompletionListener getCompletionListener() {
	return completionListener;
}