import com.sun.xml.internal.stream.buffer.stax.StreamWriterBufferProcessor; //导入依赖的package包/类
/**
 * Write the contents of the buffer to an XMLStreamWriter.
 *
 * <p>
 * The XMLStreamBuffer will be written out to the XMLStreamWriter using
 * an instance of {@link StreamWriterBufferProcessor}.
 *
 * @param writer
 *      A XMLStreamWriter to write to.
 * @param writeAsFragment
 *      If true, {@link XMLStreamWriter} will not receive {@link XMLStreamWriter#writeStartDocument()}
 *      nor {@link XMLStreamWriter#writeEndDocument()}. This is desirable behavior when
 *      you are writing the contents of a buffer into a bigger document.
 */
public final void writeToXMLStreamWriter(XMLStreamWriter writer, boolean writeAsFragment) throws XMLStreamException {
    StreamWriterBufferProcessor p = new StreamWriterBufferProcessor(this,writeAsFragment);
    p.process(writer);
}