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## org.apache.cxf.io
Interface CopyingOutputStream

    public interface CopyingOutputStream

Marker interface for OutputStreams that can directly support copying from an input stream. OutputStreams that maintain their own byte buffer or similar may be able to optimize the copy instead of using the read/write into a temporary buffer that the normal IOUtils.copy method requires.

Method Summary
`int` | `copyFrom(InputStream in)`

Method Detail

### copyFrom

    int copyFrom(InputStream in)
                 throws IOException

  Throws:
    `IOException`

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Apache CXF