com.yworks.yfiles.server.graphml.support
Class XmlSupport

java.lang.Object
  com.yworks.yfiles.server.graphml.support.XmlSupport

public class XmlSupport

extends java.lang.Object

Support classes for handling xml elements.

Method Summary

static java.lang.String	getAttributeValue(org.w3c.dom.Node node, java.lang.String attributeName) Returns the value of an attribute
static org.w3c.dom.Node	getChildNode(org.w3c.dom.Node node, java.lang.String name, java.lang.String namespace) Returns a child element of the given node.
static org.w3c.dom.Node[]	getChildNodes(org.w3c.dom.Node node, java.lang.String name, java.lang.String namespace) Returns all child elements of the given node with the given name and namespace.
static org.w3c.dom.Node	getFirstChildElement(org.w3c.dom.Node node) Returns the first child node of the given node that is of type Node.ELEMENT_NODE.
static java.lang.String	getTextContext(org.w3c.dom.Node node) Returns the node value of the first child of the given node that is of type Node.TEXT_NODE or of type Node.CDATA_SECTION_NODE.
static java.lang.String	lookupNamespaceURI(org.w3c.dom.Node xmlNode, java.lang.String lookupPrefix)
static void	setAttribute(org.w3c.dom.Node node, java.lang.String attributeName, java.lang.String value) Sets the value of an existing attribute.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setAttribute

public static void setAttribute(org.w3c.dom.Node node,
                                java.lang.String attributeName,
                                java.lang.String value)

Sets the value of an existing attribute.

Parameters:

node - The node to set the attribute for

attributeName - The name of the attribute

value - The new attribute value

getTextContext

public static java.lang.String getTextContext(org.w3c.dom.Node node)

Returns the node value of the first child of the given node that is of type Node.TEXT_NODE or of type Node.CDATA_SECTION_NODE. Returns an empty string, if no such node exists.

getAttributeValue

public static java.lang.String getAttributeValue(org.w3c.dom.Node node,
                                                 java.lang.String attributeName)

Returns the value of an attribute

Parameters:

node - The node to return the attribute value for

attributeName - The name of the attribute

Returns:

The attribute value, or null, if the attribute does not exist.

getChildNode

public static org.w3c.dom.Node getChildNode(org.w3c.dom.Node node,
                                            java.lang.String name,
                                            java.lang.String namespace)

Returns a child element of the given node.

Parameters:

node - The parent node

name - The name of the child node

namespace - The child node's namespace.

Returns:

The child element, or null, if no child element with the given name and namespace exists.

getFirstChildElement

public static org.w3c.dom.Node getFirstChildElement(org.w3c.dom.Node node)

Returns the first child node of the given node that is of type Node.ELEMENT_NODE.

Parameters:

node - The parent node.

Returns:

The first child element, or null, if the given node has no child elements.

getChildNodes

public static org.w3c.dom.Node[] getChildNodes(org.w3c.dom.Node node,
                                               java.lang.String name,
                                               java.lang.String namespace)

Returns all child elements of the given node with the given name and namespace.

Parameters:

node - The parent node

name - The name of the children

namespace - The children's namespace.

Returns:

A possibly empty array of child elements

lookupNamespaceURI

public static java.lang.String lookupNamespaceURI(org.w3c.dom.Node xmlNode,
                                                  java.lang.String lookupPrefix)