org.mov.parser.expression
Class NumberExpression

java.lang.Object
  org.mov.parser.expression.AbstractExpression
      org.mov.parser.expression.TerminalExpression
          org.mov.parser.expression.NumberExpression

All Implemented Interfaces:

java.lang.Cloneable, Expression

public class NumberExpression
extends TerminalExpression

A representation of a value.

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

NumberExpression(boolean value)

NumberExpression(double value)

NumberExpression(double value, int type)

NumberExpression(int value)

Method Summary

java.lang.Object	clone()
boolean	equals(double value)
boolean	equals(java.lang.Object object) Returns whether this expression tree and the given expression tree are equivalent.
double	evaluate(Variables variables, QuoteBundle quoteBundle, Symbol symbol, int day) Evaluates the given expression and returns the result.
int	getType() Get the type of the expression.
double	getValue() Get the value of the number.
static boolean	isConstant(Expression expression, int value) Returns whether the given expression is a NumberExpression set to the given constant.
void	setValue(double value) Set the value of the number.
java.lang.String	toString() Convert the given expression to a string.
static java.lang.String	toString(int type, double value)

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

checkType, getChildCount

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

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, wait, wait, wait

Constructor Detail

NumberExpression

public NumberExpression(boolean value)

NumberExpression

public NumberExpression(double value)

NumberExpression

public NumberExpression(int value)

NumberExpression

public NumberExpression(double value,
                        int type)

Method Detail

evaluate

public double evaluate(Variables variables,
                       QuoteBundle quoteBundle,
                       Symbol symbol,
                       int day)

Description copied from interface: Expression

Evaluates the given expression and returns the result.

Parameters:

variables - variable storage area for expression

quoteBundle - the quote bundle containing quote data to use

symbol - the current symbol

day - current date in cache fast access format

Returns:

the result of the expression

toString

public static java.lang.String toString(int type,
                                        double value)

toString

public java.lang.String toString()

Description copied from interface: Expression

Convert the given expression to a string.

Specified by:

toString in interface Expression

Overrides:

toString in class java.lang.Object

Returns:

the string representation of the expression

equals

public boolean equals(double value)

equals

public boolean equals(java.lang.Object object)

Description copied from class: AbstractExpression

Returns whether this expression tree and the given expression tree are equivalent.

Specified by:

equals in interface Expression

Overrides:

equals in class AbstractExpression

Parameters:

object - the other expression

isConstant

public static boolean isConstant(Expression expression,
                                 int value)

Returns whether the given expression is a NumberExpression set to the given constant. This is a convenience method often called when printing functions to determine whether the print should print only an abbreviated form, e.g. rsi(45, 0) is printed as rsi().

Parameters:

expression - the expression to query.

value - the value to check

Returns:

true if the expression is a NumberExpression with the given value.

getValue

public double getValue()

Get the value of the number.

Returns:

value

setValue

public void setValue(double value)

Set the value of the number.

Parameters:

value - the new value

getType

public int getType()

Get the type of the expression.

Returns:

one of Expression.BOOLEAN_TYPE, Expression.FLOAT_TYPE or Expression.INTEGER_TYPE.

clone

public java.lang.Object clone()

Specified by:

clone in interface Expression

Specified by:

clone in class AbstractExpression