Package edu.hws.jcm.data
Class StandardFunction
- java.lang.Object
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- edu.hws.jcm.data.StandardFunction
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- All Implemented Interfaces:
MathObject
,java.io.Serializable
public class StandardFunction extends java.lang.Object implements MathObject
This class exists to associate standard functions, such as sin and abs, with their names. Note that the functions are actually implemented in the ExprsssionProgram class, where they are only represented by numerical operation codes. An object of type StandardFunction contains a name and the operation code of the associated standard function. A static routine, standardFunctionName, gives the name associated with each operation code.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description StandardFunction(int opCode)
Create a StandardFunction object to represent the standard function with the given operation code, where opCode is one of the codes for standard functions defined in class ExpressionProgram.StandardFunction(java.lang.String name, int opCode)
Create a StandardFunction object to represent the standard function with the given operation code, where opCode is one of the codes for stadard functions defined in class ExpressionProgram.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getName()
Return the name of this StandardFunction oject.int
getOpCode()
Return the operation code for this standard function.void
setName(java.lang.String name)
Change the name of this StandardFunction.static java.lang.String
standardFunctionName(int opCode)
Return the usual name for the standard function with the specified opCode.
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Constructor Detail
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StandardFunction
public StandardFunction(int opCode)
Create a StandardFunction object to represent the standard function with the given operation code, where opCode is one of the codes for standard functions defined in class ExpressionProgram. The name is the one associated with the opCode by the static function standardFunctionName() in this class. An error will occur if opCode is not one of the valid standard function operation codes.
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StandardFunction
public StandardFunction(java.lang.String name, int opCode)
Create a StandardFunction object to represent the standard function with the given operation code, where opCode is one of the codes for stadard functions defined in class ExpressionProgram. Use the specified name for the standard function. This allows you to make alternative names, such as "log" instead of "log10". An error will occur if opCode is not one of the valid standard function operation codes.
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Method Detail
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getOpCode
public int getOpCode()
Return the operation code for this standard function.
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getName
public java.lang.String getName()
Return the name of this StandardFunction oject.- Specified by:
getName
in interfaceMathObject
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setName
public void setName(java.lang.String name)
Change the name of this StandardFunction. This shouldn't be done if this object is registered with a Parser.- Specified by:
setName
in interfaceMathObject
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standardFunctionName
public static java.lang.String standardFunctionName(int opCode)
Return the usual name for the standard function with the specified opCode. The opcodes are defined in the ExpressionProgram class. Will throw an IllegalArgumentException if the specified oPcode is not the opcode for any standard function.
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