org.jdom
Class Content

java.lang.Object
  |
  +--org.jdom.Content

Direct Known Subclasses:

Comment, DocType, Element, EntityRef, ProcessingInstruction, Text

public abstract class Content

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

Superclass for JDOM objects which can be legal child content of Parent nodes.

Version:

$Revision: 1.5 $, $Date: 2004/09/07 06:37:20 $

Author:

Bradley S. Huffman, Jason Hunter

See Also:

Comment, DocType, Element, EntityRef, Parent, ProcessingInstruction, Text, Serialized Form

Field Summary

protected Parent

parent

Constructor Summary

protected

Content()

Method Summary

java.lang.Object	clone() Returns a deep, unattached copy of this child and its descendants detached from any parent or document.
Content	detach() Detaches this child from its parent or does nothing if the child has no parent.
boolean	equals(java.lang.Object ob) This tests for equality of this Content object to the supplied object.
Document	getDocument() Return this child's owning document or null if the branch containing this child is currently not attached to a document.
Parent	getParent() Return this child's parent, or null if this child is currently not attached.
Element	getParentElement() A convenience method that returns any parent element for this element, or null if the element is unattached or is a root element.
abstract java.lang.String	getValue() Returns the XPath 1.0 string value of this child.
int	hashCode() This returns the hash code for this Content item.
protected Content	setParent(Parent parent) Sets the parent of this Content.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

parent

protected Parent parent

Constructor Detail

Content

protected Content()

Method Detail

detach

public Content detach()

Detaches this child from its parent or does nothing if the child has no parent.

Returns:

this child detached

getParent

public Parent getParent()

Return this child's parent, or null if this child is currently not attached. The parent can be either an Element or a Document.

Returns:

this child's parent or null if none

getParentElement

public Element getParentElement()

A convenience method that returns any parent element for this element, or null if the element is unattached or is a root element. This was the original behavior of getParent() in JDOM Beta 9 which began returning Parent in Beta 10. This method provides a convenient upgrade path for JDOM Beta 10 and 1.0 users.

Returns:

the containing Element or null if unattached or a root element

setParent

protected Content setParent(Parent parent)

Sets the parent of this Content. The caller is responsible for removing any pre-existing parentage.

Parameters:

parent - new parent element

Returns:

the target element

getDocument

public Document getDocument()

Return this child's owning document or null if the branch containing this child is currently not attached to a document.

Returns:

this child's owning document or null if none

getValue

public abstract java.lang.String getValue()

Returns the XPath 1.0 string value of this child.

Returns:

xpath string value of this child.

clone

public java.lang.Object clone()

Returns a deep, unattached copy of this child and its descendants detached from any parent or document.

Overrides:

clone in class java.lang.Object

Returns:

a detached deep copy of this child and descendants

equals

public final boolean equals(java.lang.Object ob)

This tests for equality of this Content object to the supplied object. Content items are considered equal only if they are referentially equal (i.e. the same object). User code may choose to compare objects based on their properties instead.

Overrides:

equals in class java.lang.Object

Parameters:

ob - Object to compare to.

Returns:

boolean - whether the Content is equal to the supplied Object.

hashCode

public final int hashCode()

This returns the hash code for this Content item.

Overrides:

hashCode in class java.lang.Object

Returns:

int - hash code.