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## javax.mail.internet
Class PreencodedMimeBodyPart

    java.lang.Object
      javax.mail.BodyPart
          javax.mail.internet.MimeBodyPart
              javax.mail.internet.PreencodedMimeBodyPart

All Implemented Interfaces:
  MimePart, Part

    public class PreencodedMimeBodyPart

extends MimeBodyPart

A MimeBodyPart that handles data that has already been encoded. This class is useful when constructing a message and attaching data that has already been encoded (for example, using base64 encoding). The data may have been encoded by the application, or may have been stored in a file or database in encoded form. The encoding is supplied when this object is created. The data is attached to this object in the usual fashion, by using the `setText`, `setContent`, or `setDataHandler` methods.

Since:
  JavaMail 1.4

Field Summary

Fields inherited from class javax.mail.internet.MimeBodyPart
`content, contentStream, dh, headers`

Fields inherited from class javax.mail.BodyPart
`parent`

Fields inherited from interface javax.mail.Part
`ATTACHMENT, INLINE`

Constructor Summary
`PreencodedMimeBodyPart(String encoding)` Create a PreencodedMimeBodyPart that assumes the data is encoded using the specified encoding.

Method Summary
`String` | `getEncoding()` Returns the content transfer encoding specified when this object was created.
`protected void` | `updateHeaders()` Force the `Content-Transfer-Encoding` header to use the encoding that was specified when this object was created.
`void` | `writeTo(OutputStream os)` Output the body part as an RFC 822 format stream.

Methods inherited from class javax.mail.internet.MimeBodyPart
`addHeader, addHeaderLine, attachFile, attachFile, getAllHeaderLines, getAllHeaders, getContent, getContentID, getContentLanguage, getContentMD5, getContentStream, getContentType, getDataHandler, getDescription, getDisposition, getFileName, getHeader, getHeader, getInputStream, getLineCount, getMatchingHeaderLines, getMatchingHeaders, getNonMatchingHeaderLines, getNonMatchingHeaders, getRawInputStream, getSize, isMimeType, removeHeader, saveFile, saveFile, setContent, setContent, setContentID, setContentLanguage, setContentMD5, setDataHandler, setDescription, setDescription, setDisposition, setFileName, setHeader, setText, setText, setText`

Methods inherited from class javax.mail.BodyPart
`getParent`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### PreencodedMimeBodyPart

    public PreencodedMimeBodyPart(String encoding)

  Create a PreencodedMimeBodyPart that assumes the data is encoded using the specified encoding. The encoding must be a MIME supported Content-Transfer-Encoding.

Method Detail

### getEncoding

    public String getEncoding()
                       throws MessagingException

  Returns the content transfer encoding specified when this object was created.

  Specified by:
    `getEncoding` in interface `MimePart`
  Overrides:
    `getEncoding` in class `MimeBodyPart`
  Returns:
    content-transfer-encoding
  Throws:
    `MessagingException`
  See Also:
    `MimeBodyPart.headers`

### writeTo

    public void writeTo(OutputStream os)
                 throws IOException,
                        MessagingException

  Output the body part as an RFC 822 format stream.

  Specified by:
    `writeTo` in interface `Part`
  Overrides:
    `writeTo` in class `MimeBodyPart`
  Throws:
    `MessagingException`
    `IOException` - if an error occurs writing to the stream or if an error is generated by the javax.activation layer.
  See Also:
    `DataHandler.writeTo(java.io.OutputStream)`

### updateHeaders

    protected void updateHeaders()
                          throws MessagingException

  Force the `Content-Transfer-Encoding` header to use the encoding that was specified when this object was created.

  Overrides:
    `updateHeaders` in class `MimeBodyPart`
  Throws:
    `MessagingException`

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