cdx.scorebot.scoring.logic
Class ConditionalOrExpression

java.lang.Object
  cdx.scorebot.scoring.logic.ConditionalOrExpression

All Implemented Interfaces:

ExpressionType, LogicCode, LogicCodeEvaluatable

public class ConditionalOrExpression
extends java.lang.Object
implements LogicCodeEvaluatable, ExpressionType

holds a conditional OR expression

Author:

David Underhill

Constructor Summary

ConditionalOrExpression(ConditionalAndExpression leftOperand)
instantiate the conditional OR expression

Method Summary

Literal	evaluateLogic(Context context) evaluate this expression in the specified context
static boolean	evaluateOR(Context context, Literal leftOperand, java.util.Vector<ConditionalAndExpression> rightOperands) Returns the short-circuit evaluation of the expression leftOperand || rightOperands[0] || rightOperands[1] ...
LiteralType	evaluateTypeOnly(java.util.HashMap<java.lang.String,LiteralType> varTypes, java.util.HashMap<java.lang.String,TestData> testsInfo) returns the kind of literal this evaluates to
void	or(ConditionalAndExpression operand) evaluates this expression OR'ed with this operand

Methods inherited from class java.lang.Object

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

Constructor Detail

ConditionalOrExpression

public ConditionalOrExpression(ConditionalAndExpression leftOperand)

instantiate the conditional OR expression

Parameters:

leftOperand - left operand

Method Detail

evaluateLogic

public Literal evaluateLogic(Context context)
                      throws LogicException

evaluate this expression in the specified context

Specified by:

evaluateLogic in interface LogicCodeEvaluatable

Parameters:

context - contains the current context of the logic processor

Returns:

the literal value this logic evaluates to

Throws:

TypeMismatchException - thrown if an operand isn't of the required type

LogicException - thrown if an exception occurs while processing the logic

evaluateOR

public static boolean evaluateOR(Context context,
                                 Literal leftOperand,
                                 java.util.Vector<ConditionalAndExpression> rightOperands)
                          throws TypeMismatchException,
                                 LogicException

Returns the short-circuit evaluation of the expression leftOperand || rightOperands[0] || rightOperands[1] ...

Parameters:

context - contains the current context of the logic processor

leftOperand - the value on the left side of the OR operator

rightOperands - the values being OR'ed together on the right side of the OR operator

Returns:

the boolean value the specified expression evaluates to

Throws:

TypeMismatchException - thrown if an operand isn't of the required type

LogicException - thrown if an exception occurs while processing the logic

evaluateTypeOnly

public LiteralType evaluateTypeOnly(java.util.HashMap<java.lang.String,LiteralType> varTypes,
                                    java.util.HashMap<java.lang.String,TestData> testsInfo)
                             throws LogicException

Description copied from interface: LogicCodeEvaluatable

returns the kind of literal this evaluates to

Specified by:

evaluateTypeOnly in interface LogicCodeEvaluatable

Parameters:

varTypes - contains the type of value stored by each variable (variables names are keys)

testsInfo - information about each test item keyed on test item names this logic may hold

Returns:

the LiteralType this evaluates to

Throws:

LogicException - thrown if there is a problem with type which prevents this from being evaluated

or

public void or(ConditionalAndExpression operand)

evaluates this expression OR'ed with this operand

Parameters:

operand - the operand to add to the expression