Class NullSafeEquals
- java.lang.Object
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- com.singularsys.jep.functions.PostfixMathCommand
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- com.singularsys.jep.functions.BinaryFunction
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- com.singularsys.jep.functions.Comparative
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- com.singularsys.jep.misc.nullwrapper.functions.NullSafeEquals
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- All Implemented Interfaces:
NullWrappedFunctionI
,PostfixMathCommandI
,java.io.Serializable
public class NullSafeEquals extends Comparative implements NullWrappedFunctionI
The Null Safe equals function. null <=> null is true; null <=> non-null is false; not-null <=> null is false; other value as Comparative- Since:
- 3.4
- Author:
- Richard Morris
- 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 NullSafeEquals()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
eval(java.lang.Object l, java.lang.Object r)
PostfixMathCommandI
getRoot()
Get to function which this function wraps.-
Methods inherited from class com.singularsys.jep.functions.Comparative
compare, eq, ge, getId, getTolerance, gt, le, lt, ne, setTolerance
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Methods inherited from class com.singularsys.jep.functions.BinaryFunction
instanceOf, instanceOf, run
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Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString, toString
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Method Detail
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getRoot
public PostfixMathCommandI 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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eval
public java.lang.Object eval(java.lang.Object l, java.lang.Object r) throws EvaluationException
- Overrides:
eval
in classComparative
- Throws:
EvaluationException
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