com.icl.saxon.expr
Class StyleSheetFunctionCall
java.lang.Object
|
+--com.icl.saxon.expr.Expression
|
+--com.icl.saxon.expr.Function
|
+--com.icl.saxon.expr.StyleSheetFunctionCall
- public class StyleSheetFunctionCall
- extends Function
This class represents a call to a function defined in the stylesheet
Methods inherited from class com.icl.saxon.expr.Expression |
containsReferences, enumerate, evaluateAsBoolean, evaluateAsNodeSet, evaluateAsNumber, evaluateAsString, getStaticContext, indent, isContextDocumentNodeSet, make, outputStringValue, setStaticContext, usesCurrent |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
StyleSheetFunctionCall
public StyleSheetFunctionCall()
setFunction
public void setFunction(SAXONFunction f)
- Create the reference to the saxon:function element
getName
public java.lang.String getName()
- Get the name of the function.
- Overrides:
getName
in class Function
- Returns:
- the name of the function, as used in XSL expressions, but excluding
its namespace prefix
getDataType
public int getDataType()
- Determine the data type of the expression, if possible
- Overrides:
getDataType
in class Expression
- Returns:
- Value.ANY (meaning not known in advance)
simplify
public Expression simplify()
throws XPathException
- Simplify the function call
- Overrides:
simplify
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Returns:
- the simplified expression
getDependencies
public int getDependencies()
- Determine which aspects of the context the expression depends on. The result is
a bitwise-or'ed value composed from constants such as Context.VARIABLES and
Context.CURRENT_NODE
- Overrides:
getDependencies
in class Expression
reduce
public Expression reduce(int dependencies,
Context context)
throws XPathException
- Remove dependencies.
- Overrides:
reduce
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
dependencies
- The dependencies to be removed, e.g. Context.VARIABLEScontext
- The context to be used for the partial evaluation- Returns:
- a new expression (or Value) that does not have any of the specified dependencies
evaluate
public Value evaluate(Context c)
throws XPathException
- Evaluate the function
- Overrides:
evaluate
in class Expression
- Parameters:
context
- The context in which the function is to be evaluated- Returns:
- a Value representing the result of the function. This must be of the data type
corresponding to the result of getType().
- Throws:
XPathException
- if the function cannot be evaluated.