Class NullWrappedAbstractInc
- java.lang.Object
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- com.singularsys.jep.functions.PostfixMathCommand
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- com.singularsys.jep.misc.javaops.AbstractInc
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- com.singularsys.jep.misc.nullwrapper.functions.NullWrappedAbstractInc
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- All Implemented Interfaces:
CallbackEvaluationI
,NullWrappedFunctionI
,PostfixMathCommandI
,java.io.Serializable
public class NullWrappedAbstractInc extends AbstractInc implements NullWrappedFunctionI
Null wrapped version of the AbstractInc functions.- Author:
- rich
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, name, NaN, numberOfParameters
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Constructor Summary
Constructors Constructor Description NullWrappedAbstractInc(AbstractInc root)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
evaluate(Node node, Evaluator pv)
Performs some special evaluation on the node.AbstractInc
getRoot()
Get to function which this function wraps.void
setName(java.lang.String name)
Sets the name of the function used for error messages-
Methods inherited from class com.singularsys.jep.misc.javaops.AbstractInc
getVal, getVar
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Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, run, setCurNumberOfParameters, toString, toString
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Constructor Detail
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NullWrappedAbstractInc
public NullWrappedAbstractInc(AbstractInc root)
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Method Detail
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getRoot
public AbstractInc getRoot()
Description copied from interface:NullWrappedFunctionI
Get to function which this function wraps.- Specified by:
getRoot
in interfaceNullWrappedFunctionI
- Returns:
- the root function, may be "this".
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evaluate
public java.lang.Object evaluate(Node node, Evaluator pv) throws EvaluationException
Description copied from interface:CallbackEvaluationI
Performs some special evaluation on the node. This method has the responsibility for evaluating the children of the node and it should generally callpv.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.- Specified by:
evaluate
in interfaceCallbackEvaluationI
- Parameters:
node
- The current nodepv
- The visitor, can be used evaluate the children- Returns:
- the value after evaluation. This value will be passed to other functions higher up the node tree. The value can be any type including Double or Vector<Object>
- Throws:
EvaluationException
- if the calculation cannot be performed- See Also:
Evaluator
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setName
public void setName(java.lang.String name)
Description copied from interface:PostfixMathCommandI
Sets the name of the function used for error messages- Specified by:
setName
in interfacePostfixMathCommandI
- Overrides:
setName
in classPostfixMathCommand
- Parameters:
name
- the function name
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