org.apache.fop.pdf

## Class PDFArray

- java.lang.Object
- - org.apache.fop.pdf.PDFObject
  - - org.apache.fop.pdf.PDFArray

- All Implemented Interfaces:
    PDFWritable
  Direct Known Subclasses:
    PDFCIELabColorSpace, PDFSeparationColorSpace

      public class PDFArray
      extends PDFObject

  Class representing an array object.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected List<Object>` | `values` List holding the values of this array

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

      `log`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PDFArray()` Create a new, empty array object with no parent.
    `PDFArray(List<?> elements)` Creates an array object made of the given elements.
    `PDFArray(Object... elements)` Creates an array object made of the given elements.
    `PDFArray(PDFObject parent)` Create a new, empty array object
    `PDFArray(PDFObject parent, double[] values)` Create an array object.
    `PDFArray(PDFObject parent, int[] values)` Create an array object.
    `PDFArray(PDFObject parent, List<?> values)` Create an array object.
    `PDFArray(PDFObject parent, Object[] values)` Create the array object

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `add(double value)` Adds a new value to the array.
    `void` | `add(Object obj)` Adds a new value to the array.
    `void` | `clear()` Clears the PDF array.
    `boolean` | `contains(Object obj)` Indicates whether the given object exists in the array.
    `Object` | `get(int index)` Gets an entry at a given location.
    `void` | `getChildren(Set<PDFObject> children)`
    `int` | `length()` Returns the length of the array
    `int` | `output(OutputStream stream)` Write the PDF represention of this object
    `void` | `set(int index, double value)` Sets an entry at a given location.
    `void` | `set(int index, Object obj)` Sets an entry at a given location.

    - ### 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, setDocument, setObjectNumber, setObjectNumber, setObjectNumber, setParent, toPDF, toPDFString`

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

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

- - ### Field Detail

    - #### values

          protected List<Object> values

      List holding the values of this array

  - ### Constructor Detail

    - #### PDFArray

          public PDFArray(PDFObject parent)

      Create a new, empty array object
      Parameters:
        `parent` - the array's parent if any

    - #### PDFArray

          public PDFArray()

      Create a new, empty array object with no parent.

    - #### PDFArray

          public PDFArray(PDFObject parent,
                          int[] values)

      Create an array object.
      Parameters:
        `parent` - the array's parent if any
        `values` - the actual array wrapped by this object

    - #### PDFArray

          public PDFArray(PDFObject parent,
                          double[] values)

      Create an array object.
      Parameters:
        `parent` - the array's parent if any
        `values` - the actual array wrapped by this object

    - #### PDFArray

          public PDFArray(PDFObject parent,
                          List<?> values)

      Create an array object.
      Parameters:
        `parent` - the array's parent if any
        `values` - the actual values wrapped by this object

    - #### PDFArray

          public PDFArray(Object... elements)

      Creates an array object made of the given elements.
      Parameters:
        `elements` - the array content

    - #### PDFArray

          public PDFArray(List<?> elements)

      Creates an array object made of the given elements.
      Parameters:
        `elements` - the array content

    - #### PDFArray

          public PDFArray(PDFObject parent,
                          Object[] values)

      Create the array object
      Parameters:
        `parent` - the array's parent if any
        `values` - the actual array wrapped by this object

  - ### Method Detail

    - #### contains

          public boolean contains(Object obj)

      Indicates whether the given object exists in the array.
      Parameters:
        `obj` - the object to look for
      Returns:
        true if obj is contained

    - #### length

          public int length()

      Returns the length of the array
      Returns:
        the length of the array

    - #### set

          public void set(int index,
                          Object obj)

      Sets an entry at a given location.
      Parameters:
        `index` - the index of the value to set
        `obj` - the new value

    - #### set

          public void set(int index,
                          double value)

      Sets an entry at a given location.
      Parameters:
        `index` - the index of the value to set
        `value` - the new value

    - #### get

          public Object get(int index)

      Gets an entry at a given location.
      Parameters:
        `index` - the index of the value to set
      Returns:
        the requested value

    - #### add

          public void add(Object obj)

      Adds a new value to the array.
      Parameters:
        `obj` - the value

    - #### add

          public void add(double value)

      Adds a new value to the array.
      Parameters:
        `value` - the value

    - #### clear

          public void clear()

      Clears the PDF array.

    - #### output

          public int output(OutputStream stream)
                     throws IOException

      Write the PDF represention of this object
      Overrides:
        `output` in class `PDFObject`
      Parameters:
        `stream` - the stream to write the PDF to
      Returns:
        the number of bytes written
      Throws:
        `IOException` - if there is an error writing to the stream

    - #### getChildren

          public void getChildren(Set<PDFObject> children)

      Overrides:
        `getChildren` in class `PDFObject`

Copyright © 2023 Apache Software Foundation. All rights reserved.