org.nfunk.jep.function
Interface SpecialEvaluationI


Deprecated. The interface CallbackEvaluationI should generally be used instead as its simpler and allows different evaluation schemes to be used.

public interface SpecialEvaluationI

Functions which require greater control over their evaluation should implement this interface.

Author:
Rich Morris
See Also:
Created on 18-Nov-2003

Method Summary
 java.lang.Object evaluate(Node node, java.lang.Object data, ParserVisitor pv, java.util.Stack stack, SymbolTable symTab)
          Deprecated. Performs some special evaluation on the node.
 

Method Detail

evaluate

java.lang.Object evaluate(Node node,
                          java.lang.Object data,
                          ParserVisitor pv,
                          java.util.Stack stack,
                          SymbolTable symTab)
                          throws ParseException
Deprecated. 
Performs some special evaluation on the node. This method has the responsibility for evaluating the children of the node and it should generally call
 node.jjtGetChild(i).jjtAccept(pv,data);        
 
for each child. Briefly the symbol table was removed as arguments to this method, it is now reinserted.

Parameters:
node - The current node
data - The data passed to visitor, typically not used
pv - The visitor, can be used evaluate the children
stack - The stack of the evaluator
symTab - The symbol table
Returns:
the value after evaluation
Throws:
ParseException


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