net.sf.joost.stx
Interface FunctionTable.Instance

All Known Implementing Classes:

FunctionTable.Avg, FunctionTable.BooleanConv, FunctionTable.Ceiling, FunctionTable.Concat, FunctionTable.Contains, FunctionTable.Count, FunctionTable.Empty, FunctionTable.EndsWith, FunctionTable.EscapeUri, FunctionTable.Exists, FunctionTable.ExtensionFunction, FunctionTable.ExtSequence, FunctionTable.False, FunctionTable.FilterAvailable, FunctionTable.Floor, FunctionTable.GetInScopePrefixes, FunctionTable.GetNamespaceUriForPrefix, FunctionTable.HasChildNodes, FunctionTable.IndexOf, FunctionTable.InsertBefore, FunctionTable.ItemAt, FunctionTable.LocalName, FunctionTable.Max, FunctionTable.Min, FunctionTable.Name, FunctionTable.NamespaceURI, FunctionTable.NodeKind, FunctionTable.NormalizeSpace, FunctionTable.Not, FunctionTable.NumberConv, FunctionTable.Position, FunctionTable.RegexGroup, FunctionTable.Remove, FunctionTable.Round, FunctionTable.StartsWith, FunctionTable.StringConv, FunctionTable.StringJoin, FunctionTable.StringLength, FunctionTable.StringPad, FunctionTable.Subsequence, FunctionTable.Substring, FunctionTable.SubstringAfter, FunctionTable.SubstringBefore, FunctionTable.Sum, FunctionTable.Translate, FunctionTable.True

Enclosing interface:

FunctionTable

public static interface FunctionTable.Instance

Type for all functions

Method Summary

Value	evaluate(Context context, int top, Tree args) The evaluation method.
int	getMaxParCount() Maximum number of parameters.
int	getMinParCount() Minimum number of parameters.
String	getName() Expanded name of the function.

Method Detail

getMinParCount

public int getMinParCount()

Minimum number of parameters.

getMaxParCount

public int getMaxParCount()

Maximum number of parameters.

getName

public String getName()

Expanded name of the function.

evaluate

public Value evaluate(Context context,
                      int top,
                      Tree args)
               throws SAXException,
                      EvalException

The evaluation method.

Parameters:

context - the Context object

top - the number of the upper most element on the stack

args - the current parameters

Returns:

a Value instance containing the result

Throws:

SAXException - if an error occurs while processing

EvalException - if an error occurs while processing