Package freemarker.template
Interface TemplateNodeModel
- All Superinterfaces:
TemplateModel
- All Known Subinterfaces:
TemplateNodeModelEx
- All Known Implementing Classes:
NodeListModel
,NodeModel
"node" template language data type: an object that is a node in a tree.
A tree of nodes can be recursively visited using the <#visit...> and <#recurse...>
directives. This API is largely based on the W3C Document Object Model
(DOM) API. However, it's meant to be generally useful for describing
any tree of objects that you wish to navigate using a recursive visitor
design pattern (or simply through being able to get the parent
and child nodes).
See the XML Processing Guide for a concrete application.
- Since:
- FreeMarker 2.3
-
Field Summary
Fields inherited from interface freemarker.template.TemplateModel
NOTHING
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Method Summary
Modifier and TypeMethodDescription
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Method Details
-
getParentNode
- Returns:
- the parent of this node or null, in which case this node is the root of the tree.
- Throws:
TemplateModelException
-
getChildNodes
- Returns:
- a sequence containing this node's children. If the returned value is null or empty, this is essentially a leaf node.
- Throws:
TemplateModelException
-
getNodeName
- Returns:
- a String that is used to determine the processing routine to use. In the XML implementation, if the node is an element, it returns the element's tag name. If it is an attribute, it returns the attribute's name. It returns "@text" for text nodes, "@pi" for processing instructions, and so on.
- Throws:
TemplateModelException
-
getNodeType
- Returns:
- a String describing the type of node this is. In the W3C DOM, this should be "element", "text", "attribute", etc. A TemplateNodeModel implementation that models other kinds of trees could return whatever it appropriate for that application. It can be null, if you don't want to use node-types.
- Throws:
TemplateModelException
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getNodeNamespace
- Returns:
- the XML namespace URI with which this node is associated. If this TemplateNodeModel implementation is not XML-related, it will almost certainly be null. Even for XML nodes, this will often be null.
- Throws:
TemplateModelException
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