Package org.apache.xpath
Class XPathContext.XPathExpressionContext
java.lang.Object
org.apache.xpath.XPathContext.XPathExpressionContext
- All Implemented Interfaces:
ExpressionContext
- Enclosing class:
- XPathContext
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionGet the current context node.org.w3c.dom.traversal.NodeIterator
Get the current context node list.Return the DTMManager object.Get the error listener.final XObject
getVariableOrParam
(QName qname) Get a variable based on it's qualified name.Return the XPathContext associated with this XPathExpressionContext.double
Get the value of a node as a number.Get the value of a node as a string.
-
Constructor Details
-
XPathExpressionContext
public XPathExpressionContext()
-
-
Method Details
-
getXPathContext
Return the XPathContext associated with this XPathExpressionContext. Extensions should use this judiciously and only when special processing requirements cannot be met another way. Consider requesting an enhancement to the ExpressionContext interface to avoid having to call this method.- Specified by:
getXPathContext
in interfaceExpressionContext
- Returns:
- the XPathContext associated with this XPathExpressionContext.
-
getDTMManager
Return the DTMManager object. Though XPathContext context extends the DTMManager, it really is a proxy for the real DTMManager. If a caller needs to make a lot of calls to the DTMManager, it is faster if it gets the real one from this function. -
getContextNode
Get the current context node.- Specified by:
getContextNode
in interfaceExpressionContext
- Returns:
- The current context node.
-
getContextNodes
public org.w3c.dom.traversal.NodeIterator getContextNodes()Get the current context node list.- Specified by:
getContextNodes
in interfaceExpressionContext
- Returns:
- An iterator for the current context list, as defined in XSLT.
-
getErrorListener
Get the error listener.- Specified by:
getErrorListener
in interfaceExpressionContext
- Returns:
- The registered error listener.
-
toNumber
Get the value of a node as a number.- Specified by:
toNumber
in interfaceExpressionContext
- Parameters:
n
- Node to be converted to a number. May be null.- Returns:
- value of n as a number.
-
toString
Get the value of a node as a string.- Specified by:
toString
in interfaceExpressionContext
- Parameters:
n
- Node to be converted to a string. May be null.- Returns:
- value of n as a string, or an empty string if n is null.
-
getVariableOrParam
Get a variable based on it's qualified name.- Specified by:
getVariableOrParam
in interfaceExpressionContext
- Parameters:
qname
- The qualified name of the variable.- Returns:
- The evaluated value of the variable.
- Throws:
TransformerException
-