StAXEventReader.java 文件源码

public StAXEventReader(XMLStreamReader reader) throws  XMLStreamException {
    _streamReader = reader ;
    _eventAllocator = (XMLEventAllocator)reader.getProperty(XMLInputFactory.ALLOCATOR);
    if(_eventAllocator == null){
        _eventAllocator = new StAXEventAllocatorBase();
    }
    //initialize
    if (_streamReader.hasNext())
    {
        _streamReader.next();
        _currentEvent =_eventAllocator.allocate(_streamReader);
        events[0] = _currentEvent;
        hasEvent = true;
    } else {
        throw new XMLStreamException(CommonResourceBundle.getInstance().getString("message.noElement"));
    }
}