public class AbstractDocument.BranchElement extends AbstractDocument.AbstractElement
Implements a composite element that contains other elements.
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
.
AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute
NameAttribute, ResolveAttribute
public BranchElement(Element parent, AttributeSet a)
Constructs a composite element that initially contains no children.
parent
- The parent elementa
- the attributes for the elementpublic Element positionToElement(int pos)
Gets the child element that contains the given model position.
pos
- the position >= 0public void replace(int offset, int length, Element[] elems)
Replaces content with a new set of elements.
offset
- the starting offset >= 0length
- the length to replace >= 0elems
- the new elementspublic String toString()
Converts the element to a string.
public String getName()
Gets the element name.
getName
in interface Element
getName
in class AbstractDocument.AbstractElement
public int getStartOffset()
Gets the starting offset in the model for the element.
getStartOffset
in interface Element
getStartOffset
in class AbstractDocument.AbstractElement
Document
, AbstractDocument
public int getEndOffset()
Gets the ending offset in the model for the element.
getEndOffset
in interface Element
getEndOffset
in class AbstractDocument.AbstractElement
NullPointerException
- if this element has no childrenDocument
, AbstractDocument
public Element getElement(int index)
Gets a child element.
getElement
in interface Element
getElement
in class AbstractDocument.AbstractElement
index
- the child index, >= 0 && < getElementCount()public int getElementCount()
Gets the number of children for the element.
getElementCount
in interface Element
getElementCount
in class AbstractDocument.AbstractElement
public int getElementIndex(int offset)
Gets the child element index closest to the given model offset.
getElementIndex
in interface Element
getElementIndex
in class AbstractDocument.AbstractElement
offset
- the offset >= 0public boolean isLeaf()
Checks whether the element is a leaf.
isLeaf
in interface Element
isLeaf
in interface TreeNode
isLeaf
in class AbstractDocument.AbstractElement
public boolean getAllowsChildren()
Returns true if the receiver allows children.
getAllowsChildren
in interface TreeNode
getAllowsChildren
in class AbstractDocument.AbstractElement
public Enumeration children()
Returns the children of the receiver as an Enumeration
.
children
in interface TreeNode
children
in class AbstractDocument.AbstractElement
© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.