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## org.apache.fop.pdf
Class PDFReference

    java.lang.Object
      org.apache.fop.pdf.PDFReference

All Implemented Interfaces:
  PDFWritable

    public class PDFReference

extends java.lang.Object
implements PDFWritable

Class representing a PDF object reference. The object holds a soft reference to the actual PDF object so the garbage collector can free the object if it's not referenced elsewhere. The important thing about the class is the reference information to the actual PDF object in the PDF file.

Constructor Summary
`PDFReference(PDFObject obj)` Creates a new PDF reference.
`PDFReference(java.lang.String ref)` Creates a new PDF reference, but without a reference to the original object.

Method Summary
`int` | `getGeneration()` Returns the generation.
`PDFObject` | `getObject()` Returns the PDF object
`int` | `getObjectNumber()` Returns the object number.
`void` | `outputInline(java.io.OutputStream out, java.lang.StringBuilder textBuffer)` Writes a "direct object" (inline object) representation to the stream.
`java.lang.String` | `toString()`

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

Constructor Detail

### PDFReference

    public PDFReference(PDFObject obj)

  Creates a new PDF reference.

  Parameters:
    `obj` - the object to be referenced

### PDFReference

    public PDFReference(java.lang.String ref)

  Creates a new PDF reference, but without a reference to the original object.

  Parameters:
    `ref` - an object reference

Method Detail

### getObject

    public PDFObject getObject()

  Returns the PDF object

  Returns:
    the PDF object, or null if it has been released

### getObjectNumber

    public int getObjectNumber()

  Returns the object number.

  Returns:
    the object number

### getGeneration

    public int getGeneration()

  Returns the generation.

  Returns:
    the generation

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

### outputInline

    public void outputInline(java.io.OutputStream out,
                             java.lang.StringBuilder textBuffer)

  Writes a "direct object" (inline object) representation to the stream. A text buffer is given for optimized encoding of text content.

  IMPORTANT: If you need to write out binary output, call `PDFDocument.flushTextBuffer(StringBuilder, OutputStream)` before writing any content to the `OutputStream`!

  Specified by:
    `outputInline` in interface `PDFWritable`
  Parameters:
    `out` - the OutputStream (for binary content)
    `textBuffer` - the text buffer for text content

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