org.nfunk.jep
Class OperatorSet

java.lang.Object
  org.nfunk.jep.OperatorSet

Direct Known Subclasses:

GOperatorSet, VOperatorSet, XOperatorSet

public class OperatorSet
extends java.lang.Object

The standard set of operators used in JEP.

This creates instances of the PostfixMathCommands for each operator, saving the need for multiple objects to be created. To get a reference to a particular operator use

 OperatorSet opSet = jep.getOperatorSet();
 Operator myOp = opSet.getAdd();
 

If a new operator ABC is added to the parser the this class should be extended to include a method Operator getABC().

Sub classes can change which Operator is returned by each method.

Author:

Rich Morris Created on 19-Oct-2003

Field Summary

protected Operator	OP_ADD
protected Operator	OP_AND
protected Operator	OP_ASSIGN
protected Operator	OP_CROSS
protected Operator	OP_DIVIDE
protected Operator	OP_DOT
protected Operator	OP_ELEMENT
protected Operator	OP_EQ
protected Operator	OP_GE
protected Operator	OP_GT everyone can read but not write these operators
protected Operator	OP_LE
protected Operator	OP_LIST
protected Operator	OP_LT
protected Operator	OP_MOD
protected Operator	OP_MULTIPLY
protected Operator	OP_NE
protected Operator	OP_NOT
protected Operator	OP_OR
protected Operator	OP_POWER
protected Operator	OP_SUBTRACT
protected Operator	OP_UDIVIDE unary division i.e. 1/x or x^(-1)
protected Operator	OP_UMINUS

Constructor Summary

OperatorSet()

Method Summary

Operator	getAdd()
Operator	getAnd()
Operator	getAssign()
Operator	getCross()
Operator	getDivide()
Operator	getDot()
Operator	getElement()
Operator	getEQ()
Operator	getGE()
Operator	getGT()
Operator	getLE()
Operator	getList()
Operator	getLT()
Operator	getMod()
Operator	getMultiply()
Operator	getNE()
Operator	getNot()
Operator[]	getOperators() Gets the list of operators.
Operator	getOr()
Operator	getPower()
Operator	getSubtract()
Operator	getUMinus()
void	printOperators()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

OP_GT

protected Operator OP_GT

everyone can read but not write these operators

OP_LT

protected Operator OP_LT

OP_EQ

protected Operator OP_EQ

OP_LE

protected Operator OP_LE

OP_GE

protected Operator OP_GE

OP_NE

protected Operator OP_NE

OP_AND

protected Operator OP_AND

OP_OR

protected Operator OP_OR

OP_NOT

protected Operator OP_NOT

OP_ADD

protected Operator OP_ADD

OP_SUBTRACT

protected Operator OP_SUBTRACT

OP_UMINUS

protected Operator OP_UMINUS

OP_MULTIPLY

protected Operator OP_MULTIPLY

OP_DIVIDE

protected Operator OP_DIVIDE

OP_MOD

protected Operator OP_MOD

OP_UDIVIDE

protected Operator OP_UDIVIDE

unary division i.e. 1/x or x^(-1)

OP_POWER

protected Operator OP_POWER

OP_ASSIGN

protected Operator OP_ASSIGN

OP_DOT

protected Operator OP_DOT

OP_CROSS

protected Operator OP_CROSS

OP_LIST

protected Operator OP_LIST

OP_ELEMENT

protected Operator OP_ELEMENT

Constructor Detail

OperatorSet

public OperatorSet()

Method Detail

getOperators

public Operator[] getOperators()

Gets the list of operators. Note subclasses should override this method.

printOperators

public void printOperators()

getAdd

public Operator getAdd()

getSubtract

public Operator getSubtract()

getUMinus

public Operator getUMinus()

getMultiply

public Operator getMultiply()

getDivide

public Operator getDivide()

getMod

public Operator getMod()

getPower

public Operator getPower()

getEQ

public Operator getEQ()

getNE

public Operator getNE()

getGE

public Operator getGE()

getGT

public Operator getGT()

getLE

public Operator getLE()

getLT

public Operator getLT()

getAnd

public Operator getAnd()

getOr

public Operator getOr()

getNot

public Operator getNot()

getAssign

public Operator getAssign()

getDot

public Operator getDot()

getCross

public Operator getCross()

getList

public Operator getList()

getElement

public Operator getElement()