org.mov.parser.expression
Class BinaryExpression

java.lang.Object
  org.mov.parser.expression.AbstractExpression
      org.mov.parser.expression.BinaryExpression

All Implemented Interfaces:

java.lang.Cloneable, Expression

Direct Known Subclasses:

ArithmeticExpression, ComparisionExpression, LagExpression, LogicExpression, MACDExpression, PercentExpression, RSIExpression, WhileExpression

public abstract class BinaryExpression
extends AbstractExpression

Abstract base class for all expressions requiring two arguments.

Field Summary

Fields inherited from interface org.mov.parser.Expression

BOOLEAN_TYPE, FALSE, FLOAT_QUOTE_TYPE, FLOAT_TYPE, INTEGER_QUOTE_TYPE, INTEGER_TYPE, STRING_TYPE, TRUE, TRUE_LEVEL

Constructor Summary

BinaryExpression(Expression left, Expression right)
Create a new binary expression with the given left and right arguments.

Method Summary

int	getChildCount() Return the number of children required in a binary expression.
protected java.lang.String	toString(java.lang.String operator) Helper method to conver the given expression to a string.

Methods inherited from class org.mov.parser.expression.AbstractExpression

clone, equals, getChild, getIndex, getNumberFormat, getParent, hashCode, isRoot, iterator, parseDouble, parseInt, setChild, setParent, simplify, size, size, valueOfDouble, valueOfInt

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.mov.parser.Expression

checkType, evaluate, getType, toString

Constructor Detail

BinaryExpression

public BinaryExpression(Expression left,
                        Expression right)

Create a new binary expression with the given left and right arguments.

Parameters:

left - the left argument

right - the right argument

Method Detail

getChildCount

public int getChildCount()

Return the number of children required in a binary expression. This will always evaluate to 2.

Returns:

2

toString

protected java.lang.String toString(java.lang.String operator)

Helper method to conver the given expression to a string. Given an operator such as +, - etc it will return arg1 operator arg2. It will insert parentheses as needed.

Parameters:

operator - the binary operator

Returns:

the string representation