@DOMObjectAttribute @DOMNameAttribute(name="XPathExpression") public interface IXPathExpression
The XPathExpression
interface represents a parsed and resolved XPath expression.
Modifier and Type | Method and Description |
---|---|
IXPathResult |
evaluate(Node contextNode,
int type,
java.lang.Object result)
Evaluates this XPath expression and returns a result.
|
@DOMNameAttribute(name="evaluate") IXPathResult evaluate(Node contextNode, int type, java.lang.Object result)
Evaluates this XPath expression and returns a result.
contextNode
- The context
is context node for the evaluation of this XPath expression.
If the IXPathEvaluator
was obtained by casting the Document
then this must be
owned by the same document and must be a Document
, Element
, Attr
,
Text
, CDATASection
, Comment
, ProcessingInstruction
,
or XPathNamespace
node. If the context node is a Text
or a CDATASection
,
then the context is interpreted as the whole logical text node as seen by XPath, unless the node is empty
in which case it may not serve as the XPath context.type
- If a specific type
is specified, then the result will be coerced to return the
specified type relying on XPath conversions and fail if the desired coercion is not possible. This must
be one of the values of XPathResultType
.result
- The result
specifies a specific result object which may be reused and returned
by this method. If this is specified as null
or the implementation does not reuse the specified
result, a new result object will be constructed and returned. For XPath 1.0 results, this object will be
of type IXPathResult
.IXPathResult
.DOMException
- TYPE_ERR: Raised if the result cannot be converted to return the specified type.DOMException
- WRONG_DOCUMENT_ERR: The Node is from a document that is not supported by
the IXPathEvaluator
that created this IXPathExpression
.DOMException
- NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath context node
or the request type is not permitted by this IXPathExpression
.