TreeNode (Apache Tomcat 7.0.109 API Documentation)

java.lang.Object
- org.apache.jasper.xmlparser.TreeNode

```
public class TreeNode
extends Object
```
Simplified implementation of a Node from a Document Object Model (DOM) parse of an XML document. This class is used to represent a DOM tree so that the XML parser's implementation of org.w3c.dom need not be visible to the remainder of Jasper.
WARNING - Construction of a new tree, or modifications to an existing one, are not thread-safe and such accesses must be synchronized.

Author:

Craig R. McClanahan

Field Summary

Fields
Modifier and Type	Field and Description
`protected HashMap<String,String>`	`attributes` The attributes of this node, keyed by attribute name, Instantiated only if required.
`protected String`	`body` The body text associated with this node (if any).
`protected ArrayList<TreeNode>`	`children` The children of this node, instantiated only if required.
`protected String`	`name` The name of this node.
`protected TreeNode`	`parent` The parent node of this node.

Constructor Summary

Constructors
Constructor and Description

TreeNode(String name, TreeNode parent)
Construct a new node with the specified parent.

Constructors
Constructor and Description
`TreeNode(String name, TreeNode parent)` Construct a new node with the specified parent.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAttribute(String name, String value)` Add an attribute to this node, replacing any existing attribute with the same name.
`void`	`addChild(TreeNode node)` Add a new child node to this node.
`String`	`findAttribute(String name)` Return the value of the specified node attribute if it exists, or `null` otherwise.
`Iterator<String>`	`findAttributes()` Return an Iterator of the attribute names of this node.
`TreeNode`	`findChild(String name)` Return the first child node of this node with the specified name, if there is one; otherwise, return `null`.
`Iterator<TreeNode>`	`findChildren()` Return an Iterator of all children of this node.
`Iterator<TreeNode>`	`findChildren(String name)` Return an Iterator over all children of this node that have the specified name.
`String`	`getBody()` Return the body text associated with this node (if any).
`String`	`getName()` Return the name of this node.
`void`	`setBody(String body)` Set the body text associated with this node (if any).
`String`	`toString()` Return a String representation of this TreeNode.
`protected void`	`toString(StringBuilder sb, int indent, TreeNode node)` Append to the specified StringBuilder a character representation of this node, with the specified amount of indentation.

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

- Field Detail
  - attributes
```
protected HashMap<String,String> attributes
```
    The attributes of this node, keyed by attribute name, Instantiated only if required.
  - body
```
protected String body
```
    The body text associated with this node (if any).
  - children
```
protected ArrayList<TreeNode> children
```
    The children of this node, instantiated only if required.
  - name
```
protected String name
```
    The name of this node.
  - parent
```
protected TreeNode parent
```
    The parent node of this node.
- Constructor Detail
  - TreeNode
```
public TreeNode(String name,
        TreeNode parent)
```
    Construct a new node with the specified parent.
    
    Parameters:
    name - The name of this node
    parent - The node that is the parent of this node
- Method Detail
  - addAttribute
```
public void addAttribute(String name,
                String value)
```
    Add an attribute to this node, replacing any existing attribute with the same name.
    
    Parameters:
    name - The attribute name to add
    value - The new attribute value
  - addChild
```
public void addChild(TreeNode node)
```
    Add a new child node to this node.
    
    Parameters:
    node - The new child node
  - findAttribute
```
public String findAttribute(String name)
```
    Return the value of the specified node attribute if it exists, or null otherwise.
    
    Parameters:
    name - Name of the requested attribute
  - findAttributes
```
public Iterator<String> findAttributes()
```
    Return an Iterator of the attribute names of this node. If there are no attributes, an empty Iterator is returned.
  - findChild
```
public TreeNode findChild(String name)
```
    Return the first child node of this node with the specified name, if there is one; otherwise, return null.
    
    Parameters:
    name - Name of the desired child element
  - findChildren
```
public Iterator<TreeNode> findChildren()
```
    Return an Iterator of all children of this node. If there are no children, an empty Iterator is returned.
  - findChildren
```
public Iterator<TreeNode> findChildren(String name)
```
    Return an Iterator over all children of this node that have the specified name. If there are no such children, an empty Iterator is returned.
    
    Parameters:
    name - Name used to select children
  - getBody
```
public String getBody()
```
    Return the body text associated with this node (if any).
  - getName
```
public String getName()
```
    Return the name of this node.
  - setBody
```
public void setBody(String body)
```
    Set the body text associated with this node (if any).
    
    Parameters:
    body - The body text (if any)
  - toString
```
public String toString()
```
    Return a String representation of this TreeNode.
    
    Overrides:
    
    toString in class Object
  - toString
```
protected void toString(StringBuilder sb,
            int indent,
            TreeNode node)
```
    Append to the specified StringBuilder a character representation of this node, with the specified amount of indentation.
    
    Parameters:
    sb - The StringBuilder to append to
    indent - Number of characters of indentation
    node - The TreeNode to be printed

Class TreeNode

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

attributes

body

children

name

parent

Constructor Detail

TreeNode

Method Detail

addAttribute

addChild

findAttribute

findAttributes

findChild

findChildren

findChildren

getBody

getName

setBody

toString

toString