# Class AbstractDocument.LeafElement

java.lang.Object
javax.swing.text.AbstractDocument.AbstractElement
javax.swing.text.AbstractDocument.LeafElement

All Implemented Interfaces:
  `Serializable`, `AttributeSet`, `Element`, `MutableAttributeSet`, `TreeNode`

Direct Known Subclasses:
  `HTMLDocument.RunElement`

Enclosing class:
  `AbstractDocument`

public class AbstractDocument.LeafElement extends AbstractDocument.AbstractElement
Implements an element that directly represents content of some kind.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the `java.beans` package. Please see `XMLEncoder`.

See Also:
  - `Element`

- ## Nested Class Summary

  ### Nested classes/interfaces declared in interface javax.swing.text.AttributeSet

  `AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute`

- ## Field Summary

  ### Fields declared in interface javax.swing.text.AttributeSet

  `NameAttribute, ResolveAttribute`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `LeafElement(Element parent, AttributeSet a, int offs0, int offs1)`
  Constructs an element that represents content within the document (has no children).

- ## Method Summary

  Modifier and Type
  Method
  Description
  `Enumeration<TreeNode>`
  `children()`
  Returns the children of the receiver as an `Enumeration`.
  `boolean`
  `getAllowsChildren()`
  Returns true if the receiver allows children.
  `Element`
  `getElement(int index)`
  Gets a child element.
  `int`
  `getElementCount()`
  Returns the number of child elements.
  `int`
  `getElementIndex(int pos)`
  Gets the child element index closest to the given model offset.
  `int`
  `getEndOffset()`
  Gets the ending offset in the model for the element.
  `String`
  `getName()`
  Gets the element name.
  `int`
  `getStartOffset()`
  Gets the starting offset in the model for the element.
  `boolean`
  `isLeaf()`
  Checks whether the element is a leaf.
  `String`
  `toString()`
  Converts the element to a string.

  ### Methods declared in class javax.swing.text.AbstractDocument.AbstractElement

  `addAttribute, addAttributes, containsAttribute, containsAttributes, copyAttributes, dump, getAttribute, getAttributeCount, getAttributeNames, getAttributes, getChildAt, getChildCount, getDocument, getIndex, getParent, getParentElement, getResolveParent, isDefined, isEqual, removeAttribute, removeAttributes, removeAttributes, setResolveParent`

  ### Methods declared in class java.lang.Object

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

- ## Constructor Details

  - ### LeafElement

    public LeafElement(Element parent, AttributeSet a, int offs0, int offs1)
    Constructs an element that represents content within the document (has no children).
    Parameters:
      `parent` - The parent element
      `a` - The element attributes
      `offs0` - The start offset >= 0
      `offs1` - The end offset >= offs0
    Since:
      1.4

- ## Method Details

  - ### toString

    public String toString()
    Converts the element to a string.
    Overrides:
      `toString` in class `Object`
    Returns:
      the string

  - ### getStartOffset

    public int getStartOffset()
    Gets the starting offset in the model for the element.
    Specified by:
      `getStartOffset` in interface `Element`
    Specified by:
      `getStartOffset` in class `AbstractDocument.AbstractElement`
    Returns:
      the offset >= 0
    See Also:
      - `Document`
      - `AbstractDocument`

  - ### getEndOffset

    public int getEndOffset()
    Gets the ending offset in the model for the element.
    Specified by:
      `getEndOffset` in interface `Element`
    Specified by:
      `getEndOffset` in class `AbstractDocument.AbstractElement`
    Returns:
      the offset >= 0
    See Also:
      - `Document`
      - `AbstractDocument`

  - ### getName

    public String getName()
    Gets the element name.
    Specified by:
      `getName` in interface `Element`
    Overrides:
      `getName` in class `AbstractDocument.AbstractElement`
    Returns:
      the name

  - ### getElementIndex

    public int getElementIndex(int pos)
    Gets the child element index closest to the given model offset.
    Specified by:
      `getElementIndex` in interface `Element`
    Specified by:
      `getElementIndex` in class `AbstractDocument.AbstractElement`
    Parameters:
      `pos` - the offset >= 0
    Returns:
      the element index >= 0

  - ### getElement

    public Element getElement(int index)
    Gets a child element.
    Specified by:
      `getElement` in interface `Element`
    Specified by:
      `getElement` in class `AbstractDocument.AbstractElement`
    Parameters:
      `index` - the child index, >= 0 && < getElementCount()
    Returns:
      the child element

  - ### getElementCount

    public int getElementCount()
    Returns the number of child elements.
    Specified by:
      `getElementCount` in interface `Element`
    Specified by:
      `getElementCount` in class `AbstractDocument.AbstractElement`
    Returns:
      the number of children >= 0

  - ### isLeaf

    public boolean isLeaf()
    Checks whether the element is a leaf.
    Specified by:
      `isLeaf` in interface `Element`
    Specified by:
      `isLeaf` in interface `TreeNode`
    Specified by:
      `isLeaf` in class `AbstractDocument.AbstractElement`
    Returns:
      true if a leaf

  - ### getAllowsChildren

    public boolean getAllowsChildren()
    Returns true if the receiver allows children.
    Specified by:
      `getAllowsChildren` in interface `TreeNode`
    Specified by:
      `getAllowsChildren` in class `AbstractDocument.AbstractElement`
    Returns:
      true if the receiver allows children, otherwise false

  - ### children

    public Enumeration<TreeNode> children()
    Returns the children of the receiver as an `Enumeration`.
    Specified by:
      `children` in interface `TreeNode`
    Specified by:
      `children` in class `AbstractDocument.AbstractElement`
    Returns:
      the children of the receiver