Node (Google Web Toolkit Javadoc)

java.lang.Object
- com.google.gwt.core.client.JavaScriptObject
- - com.google.gwt.dom.client.Node

Direct Known Subclasses:

Document, Element, Text
```
public class Node
extends JavaScriptObject
```
The Node interface is the primary datatype for the entire Document Object Model. It represents a single node in the document tree. While all objects implementing the Node interface expose methods for dealing with children, not all objects implementing the Node interface may have children.

Field Summary

Fields
Modifier and Type	Field and Description
`static short`	`DOCUMENT_NODE` The node is a `Document`.
`static short`	`ELEMENT_NODE` The node is an `Element`.
`static short`	`TEXT_NODE` The node is a `Text` node.

Constructor Summary

Constructors
Modifier Constructor and Description

protected Node()

Constructors
Modifier	Constructor and Description
`protected`	`Node()`

Method Summary

Methods
Modifier and Type	Method and Description
`<T extends Node> T`	`appendChild(T newChild)` Adds the node newChild to the end of the list of children of this node.
`static Node`	`as(JavaScriptObject o)` Assert that the given `JavaScriptObject` is a DOM node and automatically typecast it.
`Node`	`cloneNode(boolean deep)` Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes.
`Node`	`getChild(int index)` Gets the child node at the given index.
`int`	`getChildCount()` Gets the number of child nodes contained within this node.
`NodeList<Node>`	`getChildNodes()` A NodeList that contains all children of this node.
`Node`	`getFirstChild()` The first child of this node.
`Node`	`getLastChild()` The last child of this node.
`Node`	`getNextSibling()` The node immediately following this node.
`java.lang.String`	`getNodeName()` The name of this node, depending on its type; see the table above.
`short`	`getNodeType()` A code representing the type of the underlying object, as defined above.
`java.lang.String`	`getNodeValue()` The value of this node, depending on its type; see the table above.
`Document`	`getOwnerDocument()` The Document object associated with this node.
`Element`	`getParentElement()` Gets the parent element of this node.
`Node`	`getParentNode()` The parent of this node.
`Node`	`getPreviousSibling()` The node immediately preceding this node.
`boolean`	`hasChildNodes()` Returns whether this node has any children.
`boolean`	`hasParentElement()` Determines whether this node has a parent element.
`Node`	`insertAfter(Node newChild, Node refChild)` Inserts the node newChild after the existing child node refChild.
`Node`	`insertBefore(Node newChild, Node refChild)` Inserts the node newChild before the existing child node refChild.
`Node`	`insertFirst(Node child)` Inserts the given child as the first child of this node.
`static boolean`	`is(JavaScriptObject o)` Determines whether the given `JavaScriptObject` is a DOM node.
`boolean`	`isOrHasChild(Node child)` Determine whether a node is equal to, or the child of, this node.
`Node`	`removeChild(Node oldChild)` Removes the child node indicated by oldChild from the list of children, and returns it.
`void`	`removeFromParent()` Removes this node from its parent node if it is attached to one.
`Node`	`replaceChild(Node newChild, Node oldChild)` Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.
`void`	`setNodeValue(java.lang.String nodeValue)` The value of this node, depending on its type; see the table above.

Methods inherited from class com.google.gwt.core.client.JavaScriptObject
cast, createArray, createFunction, createObject, equals, hashCode, toSource, toString

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

- Field Detail
  - ELEMENT_NODE
```
public static final short ELEMENT_NODE
```
    The node is an Element.
    
    See Also:
    Constant Field Values
  - TEXT_NODE
```
public static final short TEXT_NODE
```
    The node is a Text node.
    
    See Also:
    Constant Field Values
  - DOCUMENT_NODE
```
public static final short DOCUMENT_NODE
```
    The node is a Document.
    
    See Also:
    Constant Field Values
- Constructor Detail
  - Node
```
protected Node()
```
- Method Detail
  - as
```
public static Node as(JavaScriptObject o)
```
    Assert that the given JavaScriptObject is a DOM node and automatically typecast it.
  - is
```
public static boolean is(JavaScriptObject o)
```
    Determines whether the given JavaScriptObject is a DOM node. A null object will cause this method to return false. The try catch is needed for the firefox permission error: "Permission denied to access property 'nodeType'"
  - appendChild
```
public final <T extends Node> T appendChild(T newChild)
```
    Adds the node newChild to the end of the list of children of this node. If the newChild is already in the tree, it is first removed.
    
    Parameters:
    newChild - The node to add
    
    Returns:
    The node added
  - cloneNode
```
public final Node cloneNode(boolean deep)
```
    Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes. The duplicate node has no parent; (parentNode is null.). Cloning an Element copies all attributes and their values, including those generated by the XML processor to represent defaulted attributes, but this method does not copy any text it contains unless it is a deep clone, since the text is contained in a child Text node. Cloning an Attribute directly, as opposed to be cloned as part of an Element cloning operation, returns a specified attribute (specified is true). Cloning any other type of node simply returns a copy of this node.
    
    Parameters:
    deep - If true, recursively clone the subtree under the specified node; if false, clone only the node itself (and its attributes, if it is an Element)
    
    Returns:
    The duplicate node
  - getChild
```
public final Node getChild(int index)
```
    Gets the child node at the given index.
    
    Parameters:
    index - the index of the node to be retrieved
    
    Returns:
    the child node at the given index
  - getChildCount
```
public final int getChildCount()
```
    Gets the number of child nodes contained within this node.
    
    Returns:
    the number of child nodes
  - getChildNodes
```
public final NodeList<Node> getChildNodes()
```
    A NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes.
  - getFirstChild
```
public final Node getFirstChild()
```
    The first child of this node. If there is no such node, this returns null.
  - getLastChild
```
public final Node getLastChild()
```
    The last child of this node. If there is no such node, this returns null.
  - getNextSibling
```
public final Node getNextSibling()
```
    The node immediately following this node. If there is no such node, this returns null.
  - getNodeName
```
public final java.lang.String getNodeName()
```
    The name of this node, depending on its type; see the table above.
  - getNodeType
```
public final short getNodeType()
```
    A code representing the type of the underlying object, as defined above.
  - getNodeValue
```
public final java.lang.String getNodeValue()
```
    The value of this node, depending on its type; see the table above. When it is defined to be null, setting it has no effect.
  - getOwnerDocument
```
public final Document getOwnerDocument()
```
    The Document object associated with this node. This is also the Document object used to create new nodes.
  - getParentElement
```
public final Element getParentElement()
```
    Gets the parent element of this node.
    
    Returns:
    this node's parent element, or null if none exists
  - getParentNode
```
public final Node getParentNode()
```
    The parent of this node. All nodes except Document may have a parent. However, if a node has just been created and not yet added to the tree, or if it has been removed from the tree, this is null.
  - getPreviousSibling
```
public final Node getPreviousSibling()
```
    The node immediately preceding this node. If there is no such node, this returns null.
  - hasChildNodes
```
public final boolean hasChildNodes()
```
    Returns whether this node has any children.
  - hasParentElement
```
public final boolean hasParentElement()
```
    Determines whether this node has a parent element.
    
    Returns:
    true if the node has a parent element
  - insertAfter
```
public final Node insertAfter(Node newChild,
               Node refChild)
```
    Inserts the node newChild after the existing child node refChild. If refChild is null, insert newChild at the end of the list of children.
    
    Parameters:
    newChild - The node to insert
    refChild - The reference node (that is, the node after which the new node must be inserted), or null
    
    Returns:
    The node being inserted
  - insertBefore
```
public final Node insertBefore(Node newChild,
                Node refChild)
```
    Inserts the node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children.
    
    Parameters:
    newChild - The node to insert
    refChild - The reference node (that is, the node before which the new node must be inserted), or null
    
    Returns:
    The node being inserted
  - insertFirst
```
public final Node insertFirst(Node child)
```
    Inserts the given child as the first child of this node.
    
    Parameters:
    child - the child to be inserted
    
    Returns:
    The node being inserted
  - isOrHasChild
```
public final boolean isOrHasChild(Node child)
```
    Determine whether a node is equal to, or the child of, this node.
    
    Parameters:
    child - the potential child element
    
    Returns:
    true if the relationship holds
  - removeChild
```
public final Node removeChild(Node oldChild)
```
    Removes the child node indicated by oldChild from the list of children, and returns it.
    
    Parameters:
    oldChild - The node being removed
    
    Returns:
    The node removed
  - removeFromParent
```
public final void removeFromParent()
```
    Removes this node from its parent node if it is attached to one.
  - replaceChild
```
public final Node replaceChild(Node newChild,
                Node oldChild)
```
    Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.
    
    Parameters:
    newChild - The new node to put in the child list
    oldChild - The node being replaced in the list
    
    Returns:
    The node replaced
  - setNodeValue
```
public final void setNodeValue(java.lang.String nodeValue)
```
    The value of this node, depending on its type; see the table above. When it is defined to be null, setting it has no effect.

Class Node

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.google.gwt.core.client.JavaScriptObject

Methods inherited from class java.lang.Object

Field Detail

ELEMENT_NODE

TEXT_NODE

DOCUMENT_NODE

Constructor Detail

Node

Method Detail

as

is

appendChild

cloneNode

getChild

getChildCount

getChildNodes

getFirstChild

getLastChild

getNextSibling

getNodeName

getNodeType

getNodeValue

getOwnerDocument

getParentElement

getParentNode

getPreviousSibling

hasChildNodes

hasParentElement

insertAfter

insertBefore

insertFirst

isOrHasChild

removeChild

removeFromParent

replaceChild

setNodeValue