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

All Implemented Interfaces:

Serializable, AttributeSet, Element, MutableAttributeSet, TreeNode

Direct Known Subclasses:

AbstractDocument.BranchElement, AbstractDocument.LeafElement

Enclosing class:

AbstractDocument
```
public abstract class AbstractDocument.AbstractElement
extends Object
implements Element, MutableAttributeSet, Serializable, TreeNode
```
Implements the abstract part of an element. By default elements support attributes by having a field that represents the immutable part of the current attribute set for the element. The element itself implements MutableAttributeSet which can be used to modify the set by fetching a new immutable set. The immutable sets are provided by the AttributeContext associated with the document.
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^TM has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary
- Nested classes/interfaces inherited from interface javax.swing.text.AttributeSet
  AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute

Field Summary
- Fields inherited from interface javax.swing.text.AttributeSet
  NameAttribute, ResolveAttribute

Constructor Summary

Constructors
Constructor and Description

AbstractDocument.AbstractElement(Element parent, AttributeSet a)
Creates a new AbstractElement.

Eerste pagina van API Java Inhoudsopgave Haut

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAttribute(Object name, Object value)` Adds an attribute to the element.
`void`	`addAttributes(AttributeSet attr)` Adds a set of attributes to the element.
`abstract Enumeration`	`children()` Returns the children of the receiver as an `Enumeration`.
`boolean`	`containsAttribute(Object name, Object value)` Checks whether a given attribute name/value is defined.
`boolean`	`containsAttributes(AttributeSet attrs)` Checks whether the element contains all the attributes.
`AttributeSet`	`copyAttributes()` Copies a set of attributes.
`void`	`dump(PrintStream psOut, int indentAmount)` Dumps a debugging representation of the element hierarchy.
`abstract boolean`	`getAllowsChildren()` Returns true if the receiver allows children.
`Object`	`getAttribute(Object attrName)` Gets the value of an attribute.
`int`	`getAttributeCount()` Gets the number of attributes that are defined.
`Enumeration<?>`	`getAttributeNames()` Gets the names of all attributes.
`AttributeSet`	`getAttributes()` Gets the attributes for the element.
`TreeNode`	`getChildAt(int childIndex)` Returns the child `TreeNode` at index `childIndex`.
`int`	`getChildCount()` Returns the number of children `TreeNode`'s receiver contains.
`Document`	`getDocument()` Retrieves the underlying model.
`abstract Element`	`getElement(int index)` Gets a child element.
`abstract int`	`getElementCount()` Gets the number of children for the element.
`abstract int`	`getElementIndex(int offset)` Gets the child element index closest to the given model offset.
`abstract int`	`getEndOffset()` Gets the ending offset in the model for the element.
`int`	`getIndex(TreeNode node)` Returns the index of `node` in the receivers children.
`String`	`getName()` Gets the name of the element.
`TreeNode`	`getParent()` Returns the parent `TreeNode` of the receiver.
`Element`	`getParentElement()` Gets the parent of the element.
`AttributeSet`	`getResolveParent()` Gets the resolving parent.
`abstract int`	`getStartOffset()` Gets the starting offset in the model for the element.
`boolean`	`isDefined(Object attrName)` Checks whether a given attribute is defined.
`boolean`	`isEqual(AttributeSet attr)` Checks whether two attribute sets are equal.
`abstract boolean`	`isLeaf()` Checks whether the element is a leaf.
`void`	`removeAttribute(Object name)` Removes an attribute from the set.
`void`	`removeAttributes(AttributeSet attrs)` Removes a set of attributes for the element.
`void`	`removeAttributes(Enumeration<?> names)` Removes a set of attributes for the element.
`void`	`setResolveParent(AttributeSet parent)` Sets the resolving parent.

Eerste pagina van API Java Inhoudsopgave Haut

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

- Constructor Detail
  - AbstractDocument.AbstractElement
```
public AbstractDocument.AbstractElement(Element parent,
                                AttributeSet a)
```
    Creates a new AbstractElement.
    
    Parameters:
    parent - the parent element
    a - the attributes for the element
    Since:
    
    1.4
- Method Detail
  - dump
```
public void dump(PrintStream psOut,
        int indentAmount)
```
    Dumps a debugging representation of the element hierarchy.
    
    Parameters:
    psOut - the output stream
    indentAmount - the indentation level >= 0
  - getAttributeCount
```
public int getAttributeCount()
```
    Gets the number of attributes that are defined.
    
    Specified by:
    
    getAttributeCount in interface AttributeSet
    
    Returns:
    the number of attributes >= 0
    See Also:
    AttributeSet.getAttributeCount()
  - isDefined
```
public boolean isDefined(Object attrName)
```
    Checks whether a given attribute is defined.
    
    Specified by:
    
    isDefined in interface AttributeSet
    
    Parameters:
    attrName - the non-null attribute name
    
    Returns:
    true if the attribute is defined
    See Also:
    AttributeSet.isDefined(java.lang.Object)
  - isEqual
```
public boolean isEqual(AttributeSet attr)
```
    Checks whether two attribute sets are equal.
    
    Specified by:
    
    isEqual in interface AttributeSet
    
    Parameters:
    attr - the attribute set to check against
    
    Returns:
    true if the same
    See Also:
    AttributeSet.isEqual(javax.swing.text.AttributeSet)
  - copyAttributes
```
public AttributeSet copyAttributes()
```
    Copies a set of attributes.
    
    Specified by:
    
    copyAttributes in interface AttributeSet
    
    Returns:
    the copy
    See Also:
    AttributeSet.copyAttributes()
  - getAttribute
```
public Object getAttribute(Object attrName)
```
    Gets the value of an attribute.
    
    Specified by:
    
    getAttribute in interface AttributeSet
    
    Parameters:
    attrName - the non-null attribute name
    
    Returns:
    the attribute value
    See Also:
    AttributeSet.getAttribute(java.lang.Object)
  - getAttributeNames
```
public Enumeration<?> getAttributeNames()
```
    Gets the names of all attributes.
    
    Specified by:
    
    getAttributeNames in interface AttributeSet
    
    Returns:
    the attribute names as an enumeration
    See Also:
    AttributeSet.getAttributeNames()
  - containsAttribute
```
public boolean containsAttribute(Object name,
                        Object value)
```
    Checks whether a given attribute name/value is defined.
    
    Specified by:
    
    containsAttribute in interface AttributeSet
    
    Parameters:
    name - the non-null attribute name
    value - the attribute value
    
    Returns:
    true if the name/value is defined
    See Also:
    AttributeSet.containsAttribute(java.lang.Object, java.lang.Object)
  - containsAttributes
```
public boolean containsAttributes(AttributeSet attrs)
```
    Checks whether the element contains all the attributes.
    
    Specified by:
    
    containsAttributes in interface AttributeSet
    
    Parameters:
    attrs - the attributes to check
    
    Returns:
    true if the element contains all the attributes
    See Also:
    AttributeSet.containsAttributes(javax.swing.text.AttributeSet)
  - getResolveParent
```
public AttributeSet getResolveParent()
```
    Gets the resolving parent. If not overridden, the resolving parent defaults to the parent element.
    
    Specified by:
    
    getResolveParent in interface AttributeSet
    
    Returns:
    the attributes from the parent, null if none
    See Also:
    AttributeSet.getResolveParent()
  - addAttribute
```
public void addAttribute(Object name,
                Object value)
```
    Adds an attribute to the element.
    
    Specified by:
    
    addAttribute in interface MutableAttributeSet
    
    Parameters:
    name - the non-null attribute name
    value - the attribute value
    See Also:
    MutableAttributeSet.addAttribute(java.lang.Object, java.lang.Object)
  - addAttributes
```
public void addAttributes(AttributeSet attr)
```
    Adds a set of attributes to the element.
    
    Specified by:
    
    addAttributes in interface MutableAttributeSet
    
    Parameters:
    attr - the attributes to add
    See Also:
    MutableAttributeSet.addAttribute(java.lang.Object, java.lang.Object)
  - removeAttribute
```
public void removeAttribute(Object name)
```
    Removes an attribute from the set.
    
    Specified by:
    
    removeAttribute in interface MutableAttributeSet
    
    Parameters:
    name - the non-null attribute name
    See Also:
    MutableAttributeSet.removeAttribute(java.lang.Object)
  - removeAttributes
```
public void removeAttributes(Enumeration<?> names)
```
    Removes a set of attributes for the element.
    
    Specified by:
    
    removeAttributes in interface MutableAttributeSet
    
    Parameters:
    names - the attribute names
    See Also:
    MutableAttributeSet.removeAttributes(java.util.Enumeration<?>)
  - removeAttributes
```
public void removeAttributes(AttributeSet attrs)
```
    Removes a set of attributes for the element.
    
    Specified by:
    
    removeAttributes in interface MutableAttributeSet
    
    Parameters:
    attrs - the attributes
    See Also:
    MutableAttributeSet.removeAttributes(java.util.Enumeration<?>)
  - setResolveParent
```
public void setResolveParent(AttributeSet parent)
```
    Sets the resolving parent.
    
    Specified by:
    
    setResolveParent in interface MutableAttributeSet
    
    Parameters:
    parent - the parent, null if none
    See Also:
    MutableAttributeSet.setResolveParent(javax.swing.text.AttributeSet)
  - getDocument
```
public Document getDocument()
```
    Retrieves the underlying model.
    
    Specified by:
    
    getDocument in interface Element
    
    Returns:
    the model
  - getParentElement
```
public Element getParentElement()
```
    Gets the parent of the element.
    
    Specified by:
    
    getParentElement in interface Element
    
    Returns:
    the parent
  - getAttributes
```
public AttributeSet getAttributes()
```
    Gets the attributes for the element.
    
    Specified by:
    
    getAttributes in interface Element
    
    Returns:
    the attribute set
  - getName
```
public String getName()
```
    Gets the name of the element.
    
    Specified by:
    
    getName in interface Element
    
    Returns:
    the name, null if none
  - getStartOffset
```
public abstract int getStartOffset()
```
    Gets the starting offset in the model for the element.
    
    Specified by:
    
    getStartOffset in interface Element
    
    Returns:
    the offset >= 0
    See Also:
    Document, AbstractDocument
  - getEndOffset
```
public abstract int getEndOffset()
```
    Gets the ending offset in the model for the element.
    
    Specified by:
    
    getEndOffset in interface Element
    
    Returns:
    the offset >= 0
    See Also:
    Document, AbstractDocument
  - getElement
```
public abstract Element getElement(int index)
```
    Gets a child element.
    
    Specified by:
    
    getElement in interface Element
    
    Parameters:
    index - the child index, >= 0 && < getElementCount()
    
    Returns:
    the child element
  - getElementCount
```
public abstract int getElementCount()
```
    Gets the number of children for the element.
    
    Specified by:
    
    getElementCount in interface Element
    
    Returns:
    the number of children >= 0
  - getElementIndex
```
public abstract int getElementIndex(int offset)
```
    Gets the child element index closest to the given model offset.
    
    Specified by:
    
    getElementIndex in interface Element
    
    Parameters:
    offset - the offset >= 0
    
    Returns:
    the element index >= 0
  - isLeaf
```
public abstract boolean isLeaf()
```
    Checks whether the element is a leaf.
    
    Specified by:
    
    isLeaf in interface Element
    
    Specified by:
    
    isLeaf in interface TreeNode
    
    Returns:
    true if a leaf
  - getChildAt
```
public TreeNode getChildAt(int childIndex)
```
    Returns the child TreeNode at index childIndex.
    
    Specified by:
    
    getChildAt in interface TreeNode
  - getChildCount
```
public int getChildCount()
```
    Returns the number of children TreeNode's receiver contains.
    
    Specified by:
    
    getChildCount in interface TreeNode
    
    Returns:
    the number of children TreeNodews's receiver contains
  - getParent
```
public TreeNode getParent()
```
    Returns the parent TreeNode of the receiver.
    
    Specified by:
    
    getParent in interface TreeNode
    
    Returns:
    the parent TreeNode of the receiver
  - getIndex
```
public int getIndex(TreeNode node)
```
    Returns the index of node in the receivers children. If the receiver does not contain node, -1 will be returned.
    
    Specified by:
    
    getIndex in interface TreeNode
    
    Parameters:
    node - the location of interest
    
    Returns:
    the index of node in the receiver's children, or -1 if absent
  - getAllowsChildren
```
public abstract boolean getAllowsChildren()
```
    Returns true if the receiver allows children.
    
    Specified by:
    
    getAllowsChildren in interface TreeNode
    
    Returns:
    true if the receiver allows children, otherwise false
  - children
```
public abstract Enumeration children()
```
    Returns the children of the receiver as an Enumeration.
    
    Specified by:
    
    children in interface TreeNode
    
    Returns:
    the children of the receiver as an Enumeration

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Bij voorbaat dank.

Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-javax/swing/text/abstractdocument.abstractelement.html

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Inhoudsopgave Haut

Class AbstractDocument. AbstractElement

Nested Class Summary

Nested classes/interfaces inherited from interface javax.swing.text.AttributeSet

Field Summary

Fields inherited from interface javax.swing.text.AttributeSet

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractDocument.AbstractElement

Method Detail

dump

getAttributeCount

isDefined

isEqual

copyAttributes

getAttribute

getAttributeNames

containsAttribute

containsAttributes

getResolveParent

addAttribute

addAttributes

removeAttribute

removeAttributes

removeAttributes

setResolveParent

getDocument

getParentElement

getAttributes

getName

getStartOffset

getEndOffset

getElement

getElementCount

getElementIndex

isLeaf

getChildAt

getChildCount

getParent

getIndex

getAllowsChildren

children

Referenties

In dit hoofdstuk

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