public class NullWrappedIf extends If implements NullWrappedFunctionI
If
,
Serialized FormfalseValue
curNumberOfParameters, name, NaN, numberOfParameters
Constructor and Description |
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NullWrappedIf() |
NullWrappedIf(java.lang.Object falseValue) |
Modifier and Type | Method and Description |
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java.lang.Object |
evaluate(Node node,
Evaluator pv)
Performs some special evaluation on the node.
|
PostfixMathCommandI |
getRoot()
Get to function which this function wraps.
|
checkNumberOfParameters, getFalseValue
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, getName, getNumberOfParameters, run, setCurNumberOfParameters, setName, toString, toString
public NullWrappedIf()
public NullWrappedIf(java.lang.Object falseValue)
falseValue
- public PostfixMathCommandI getRoot()
NullWrappedFunctionI
getRoot
in interface NullWrappedFunctionI
public java.lang.Object evaluate(Node node, Evaluator pv) throws EvaluationException
CallbackEvaluationI
pv.eval(node.jjtGetChild(i))for each child. The SymbolTable is not passed as an argument. This is because it is better practice to get and set variable values by using node.getVar().setValue() rather that through the SymbolTable with requires a hashtable lookup.
evaluate
in interface CallbackEvaluationI
evaluate
in class If
node
- The current nodepv
- The visitor, can be used evaluate the childrenEvaluationException
- if the calculation cannot be performedEvaluator
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