| java.lang.Object
 org.araneaframework.http.support.TreeNode
| TreeNode | | public class TreeNode (Code) | | 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
version:
$Revision$ $Date$ |
| Field Summary | |
| protected HashMap | 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 | 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. |
| Method Summary | |
| public void | addAttribute(String name, String value)
Add an attribute to this node, replacing any existing attribute
with the same name. | | public void | addChild(TreeNode node)
Add a new child node to this node. | | public String | findAttribute(String name)
Return the value of the specified node attribute if it exists, or
null otherwise. | | public Iterator | findAttributes()
Return an Iterator of the attribute names of this node. | | public TreeNode | findChild(String name)
Return the first child node of this node with the specified name,
if there is one; otherwise, return null. | | public Iterator | findChildren()
Return an Iterator of all children of this node. | | public Iterator | findChildren(String name)
Return an Iterator over all children of this node that have the
specified name. | | public String | getBody()
Return the body text associated with this node (if any). | | public String | getName()
Return the name of this node. | | public void | removeAttribute(String name)
Remove any existing value for the specified attribute name. | | public void | removeNode(TreeNode node)
Remove a child node from this node, if it is one. | | public void | setBody(String body)
Set the body text associated with this node (if any). | | public String | toString()
Return a String representation of this TreeNode. | | protected void | toString(StringBuffer sb, int indent, TreeNode node)
Append to the specified StringBuffer a character representation of
this node, with the specified amount of indentation. |
| attributes | | protected HashMap attributes(Code) | | The attributes of this node, keyed by attribute name,
Instantiated only if required.
|
| body | | protected String body(Code) | | The body text associated with this node (if any).
|
| children | | protected ArrayList children(Code) | | The children of this node, instantiated only if required.
|
| TreeNode | | public TreeNode(String name)(Code) | | Construct a new node with no parent.
Parameters:
name - The name of this node |
| TreeNode | | public TreeNode(String name, TreeNode parent)(Code) | | Construct a new node with the specified parent.
Parameters:
name - The name of this node
Parameters:
parent - The node that is the parent of this node |
| addAttribute | | public void addAttribute(String name, String value)(Code) | | Add an attribute to this node, replacing any existing attribute
with the same name.
Parameters:
name - The attribute name to add
Parameters:
value - The new attribute value |
| addChild | | public void addChild(TreeNode node)(Code) | | Add a new child node to this node.
Parameters:
node - The new child node |
| findAttribute | | public String findAttribute(String name)(Code) | | Return the value of the specified node attribute if it exists, or
null otherwise.
Parameters:
name - Name of the requested attribute |
| findAttributes | | public Iterator findAttributes()(Code) | | 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)(Code) | | 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 findChildren()(Code) | | Return an Iterator of all children of this node. If there are no
children, an empty Iterator is returned.
|
| findChildren | | public Iterator findChildren(String name)(Code) | | 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()(Code) | | Return the body text associated with this node (if any).
|
| getName | | public String getName()(Code) | | Return the name of this node.
|
| removeAttribute | | public void removeAttribute(String name)(Code) | | Remove any existing value for the specified attribute name.
Parameters:
name - The attribute name to remove |
| removeNode | | public void removeNode(TreeNode node)(Code) | | Remove a child node from this node, if it is one.
Parameters:
node - The child node to remove |
| setBody | | public void setBody(String body)(Code) | | Set the body text associated with this node (if any).
Parameters:
body - The body text (if any) |
| toString | | public String toString()(Code) | | Return a String representation of this TreeNode.
|
| toString | | protected void toString(StringBuffer sb, int indent, TreeNode node)(Code) | | Append to the specified StringBuffer a character representation of
this node, with the specified amount of indentation.
Parameters:
sb - The StringBuffer to append to
Parameters:
indent - Number of characters of indentation
Parameters:
node - The TreeNode to be printed |
|
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