PDFCFFStream (Apache FOP Core 2.11 API)
Date: 2025-04-24

org.apache.fop.pdf

## Class PDFCFFStream

- java.lang.Object
- - org.apache.fop.pdf.PDFObject
  - - org.apache.fop.pdf.AbstractPDFStream
    - - org.apache.fop.pdf.AbstractPDFFontStream
      - - org.apache.fop.pdf.PDFCFFStream

- All Implemented Interfaces:
    PDFWritable

      public class PDFCFFStream
      extends AbstractPDFFontStream

  Special PDFStream for embeddable CFF fonts.

- - ### Field Summary

    - ### Fields inherited from class org.apache.fop.pdf.PDFObject

      `log`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PDFCFFStream(String type)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected int` | `getSizeHint()` Returns a value that hints at the size of the encoded stream.
    `protected void` | `outputRawStreamData(OutputStream out)` Sends the raw stream data to the target OutputStream.
    `protected void` | `populateStreamDict(Object lengthEntry)` Populates the dictionary with all necessary entries for the stream.
    `void` | `setData(byte[] data)`

    - ### Methods inherited from class org.apache.fop.pdf.AbstractPDFFontStream

      `getDefaultFilterName`

    - ### Methods inherited from class org.apache.fop.pdf.AbstractPDFStream

      `encodeAndWriteStream, encodeStream, get, getChildren, getDictionary, getFilterList, multipleFiltersAllowed, output, outputStreamData, prepareImplicitFilters, put, registerChildren, setDocument, setupFilterList, supportsObjectStream`

    - ### Methods inherited from class org.apache.fop.pdf.PDFObject

      `contentEquals, encode, encodeBinaryToHexString, encodeString, encodeText, formatObject, getDocument, getDocumentSafely, getGeneration, getObjectID, getObjectNumber, getParent, hasObjectNumber, makeReference, outputInline, referencePDF, setObjectNumber, setObjectNumber, setObjectNumber, setParent, toPDF, toPDFString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### PDFCFFStream

          public PDFCFFStream(String type)

  - ### Method Detail

    - #### getSizeHint

          protected int getSizeHint()
                             throws IOException

      Description copied from class: `AbstractPDFStream`
      Returns a value that hints at the size of the encoded stream. This is used to optimize buffer allocation so fewer buffer reallocations are necessary.
      Specified by:
        `getSizeHint` in class `AbstractPDFStream`
      Returns:
        an estimated size (0 if no hint can be given)
      Throws:
        `IOException` - in case of an I/O problem

    - #### outputRawStreamData

          protected void outputRawStreamData(OutputStream out)
                                      throws IOException

      Description copied from class: `AbstractPDFStream`
      Sends the raw stream data to the target OutputStream.
      Specified by:
        `outputRawStreamData` in class `AbstractPDFStream`
      Parameters:
        `out` - OutputStream to write to
      Throws:
        `IOException` - In case of an I/O problem

    - #### populateStreamDict

          protected void populateStreamDict(Object lengthEntry)

      Description copied from class: `AbstractPDFStream`
      Populates the dictionary with all necessary entries for the stream. Override this method if you need additional entries.
      Overrides:
        `populateStreamDict` in class `AbstractPDFStream`
      Parameters:
        `lengthEntry` - value for the /Length entry

    - #### setData

          public void setData(byte[] data)
                       throws IOException

      Throws:
        `IOException`

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