org.scripthelper.debug.expr

Class ParsedEquation

java.lang.Object

org.scripthelper.debug.expr.ParsedEquation

All Implemented Interfaces:

Equation, Expression

public class ParsedEquation
extends java.lang.Object
implements Expression, Equation

This class represent a parsed condition.

Since:

1.3

Constructor Summary

Constructors

Constructor and Description
ParsedEquation()

Method Summary

Modifier and Type	Method and Description
void	addVariable(Variable var)
Constant	createBooleanConstant(boolean value)
Constant	createConstant(java.lang.String expr)
void	endParsing()
java.lang.Object	eval() Evaluate the expression.
Expression	getExpression() Return the associated expression.
java.lang.String	getExpressionName() Return the expression name.
Expression	getRoot() Return the root expression.
Variable	getVariable(java.lang.String varName) Return a variable declared by the expression.
java.util.Map<java.lang.String,Variable>	getVariables() Return the variables used by this expression.
void	setExpression(Expression expr)
void	setVariables(java.util.List<Variable> varsList)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.scripthelper.debug.expr.Expression

getVariable, getVariables, hasVariable, hasVariable

Constructor Detail

ParsedEquation

public ParsedEquation()

Method Detail

getExpressionName

public java.lang.String getExpressionName()

Description copied from interface: Expression

Return the expression name.

Specified by:

getExpressionName in interface Expression

Returns:

the expression name

endParsing

public void endParsing()

setExpression

public void setExpression(Expression expr)

getVariables

public java.util.Map<java.lang.String,Variable> getVariables()

Return the variables used by this expression. Note that this method will not return any internal variables declared by the expression. For example, in the following expression: int c=a+b, only "a" and "b" will be returned.

Specified by:

getVariables in interface Expression

Returns:

the variables used by this expression

getExpression

public Expression getExpression()

Description copied from interface: Expression

Return the associated expression. Return this by default.

Specified by:

getExpression in interface Equation

Specified by:

getExpression in interface Expression

Returns:

the associated expression

getRoot

public Expression getRoot()

Return the root expression.

Specified by:

getRoot in interface Expression

Returns:

the root expression

addVariable

public void addVariable(Variable var)

setVariables

public void setVariables(java.util.List<Variable> varsList)

getVariable

public Variable getVariable(java.lang.String varName)

Description copied from interface: Expression

Return a variable declared by the expression.

Specified by:

getVariable in interface Expression

Parameters:

varName - the variable name

Returns:

the variable

createBooleanConstant

public Constant createBooleanConstant(boolean value)

createConstant

public Constant createConstant(java.lang.String expr)

eval

public java.lang.Object eval()
                      throws java.lang.ArithmeticException

Description copied from interface: Expression

Evaluate the expression.

Specified by:

eval in interface Expression

Returns:

the result

Throws:

java.lang.ArithmeticException