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java.lang.Objectnet.sf.saxon.expr.ComputedExpression
net.sf.saxon.expr.FunctionCall
net.sf.saxon.functions.SystemFunction
Abstract superclass for system-defined and user-defined functions
| Field Summary | |
protected int |
operation
|
| Fields inherited from class net.sf.saxon.expr.FunctionCall |
argument |
| Fields inherited from class net.sf.saxon.expr.ComputedExpression |
locationId, staticProperties |
| Fields inherited from interface net.sf.saxon.expr.Expression |
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
| Constructor Summary | |
SystemFunction()
|
|
| Method Summary | |
protected void |
addContextDocumentArgument(int pos,
java.lang.String augmentedName)
Add an implicit argument referring to the context document. |
void |
checkArguments(StaticContext env)
Method called during static type checking |
int |
computeCardinality()
Determine the cardinality of the function. |
int |
computeSpecialProperties()
Determine the special properties of this expression. |
void |
display(int level,
java.io.PrintStream out,
Configuration config)
Diagnostic print of expression structure |
StandardFunction.Entry |
getDetails()
Get the details |
java.lang.String |
getErrorCodeForTypeErrors()
Return the error code to be used for type errors. |
ItemType |
getItemType(TypeHierarchy th)
Determine the item type of the value returned by the function |
protected SequenceType |
getRequiredType(int arg)
Get the required type of the nth argument |
static void |
main(java.lang.String[] args)
The main() method of this class is not intended to be called, it merely tells the code inspection tools in IDEA that the constructors of each function class are actual entry points |
static FunctionCall |
makeSystemFunction(java.lang.String name,
int arity,
NamePool pool)
Make a system function (one in the standard function namespace). |
void |
setDetails(StandardFunction.Entry entry)
Set the details of this type of function |
protected void |
useContextItemAsDefault()
Set "." as the default value for the first and only argument. |
| Methods inherited from class net.sf.saxon.expr.FunctionCall |
checkArgumentCount, getArguments, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, preEvaluate, promote, replaceSubExpression, setArguments, setFunctionNameCode, simplify, simplifyArguments, typeCheck |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
protected int operation
| Constructor Detail |
public SystemFunction()
| Method Detail |
public static FunctionCall makeSystemFunction(java.lang.String name,
int arity,
NamePool pool)
name - The local name of the function. It may also be a lexical QName for
a recognized built-in function, e.g. saxon:evaluate, in which case the prefix is hard-coded.
public void setDetails(StandardFunction.Entry entry)
public StandardFunction.Entry getDetails()
public void checkArguments(StaticContext env)
throws XPathException
checkArguments in class FunctionCallXPathExceptionpublic java.lang.String getErrorCodeForTypeErrors()
protected SequenceType getRequiredType(int arg)
public ItemType getItemType(TypeHierarchy th)
th -
public int computeCardinality()
computeCardinality in class ComputedExpressionpublic int computeSpecialProperties()
computeSpecialProperties in class ComputedExpressionprotected final void useContextItemAsDefault()
protected final void addContextDocumentArgument(int pos,
java.lang.String augmentedName)
throws StaticError
StaticError
public void display(int level,
java.io.PrintStream out,
Configuration config)
display in interface Expressiondisplay in class FunctionCall
public static void main(java.lang.String[] args)
throws java.lang.Exception
java.lang.Exception
|
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