Package com.singularsys.jep.functions
Class Assign
java.lang.Object
com.singularsys.jep.functions.PostfixMathCommand
com.singularsys.jep.functions.Assign
- All Implemented Interfaces:
CallbackEvaluationI
,PostfixMathCommandI
,Serializable
- Direct Known Subclasses:
ThreadSafeAssign
An assignment operator so we can do
x=3+4
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This function implements the CallbackEvaluationI interface
so that it handles setting the value of a variable.
Any Variable or functions which implements LValueI
can appear on the left-hand side of the equation.- Author:
- Rich Morris Created on 18-Nov-2003
- See Also:
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Field Summary
Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, name, NaN, numberOfParameters
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Constructor Summary
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Method Summary
Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, run, setCurNumberOfParameters, setName, toString, toString
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Constructor Details
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Assign
public Assign()
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Method Details
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evaluate
For assignment set the value of the variable on the lhs to value returned by evaluating the right-hand side.- 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:
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