cdx.scorebot.scoring.logic
Class Literal

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

All Implemented Interfaces:

LogicCode, LogicCodeEvaluatable, PrimaryExpressionType

public class Literal
extends java.lang.Object
implements LogicCodeEvaluatable, PrimaryExpressionType

holds a literal value

Author:

David Underhill

Constructor Summary

Literal(java.lang.Object value)
instantiate a Literal value

Method Summary

java.lang.Boolean	boolValue() gets the value if it is a boolean and returns null otherwise
java.lang.Double	doubleValue() gets the value if it is a double (or integer) and returns null otherwise
Literal	evaluateLogic(Context context) a literal is an atomic value, so this just returns itself
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
LiteralType	getType() gets the type of this literal
java.lang.Object	getValue() gets the value of this literal
java.lang.Integer	intValue() gets the value if it is a integer and returns null otherwise
boolean	isBoolean() whether or not the literal is a Boolean
boolean	isDouble() whether or not the literal is a Boolean
boolean	isInteger() whether or not the literal is a Boolean
boolean	isString() whether or not the literal is a Boolean
java.lang.String	stringValue() gets the value if it is a string and returns null otherwise
java.lang.String	toString() gets the string representation of the value stored by this literal

Methods inherited from class java.lang.Object

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

Constructor Detail

Literal

public Literal(java.lang.Object value)
        throws TypeMismatchException

instantiate a Literal value

Parameters:

value - the value of this literal

Throws:

TypeMismatchException

Method Detail

evaluateLogic

public Literal evaluateLogic(Context context)
                      throws LogicException

a literal is an atomic value, so this just returns itself

Specified by:

evaluateLogic in interface LogicCodeEvaluatable

Parameters:

context - contains the current context of the logic processor

Returns:

this literal value

Throws:

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

getValue

public java.lang.Object getValue()

gets the value of this literal

getType

public LiteralType getType()

gets the type of this literal

isBoolean

public boolean isBoolean()

whether or not the literal is a Boolean

isDouble

public boolean isDouble()

whether or not the literal is a Boolean

isInteger

public boolean isInteger()

whether or not the literal is a Boolean

isString

public boolean isString()

whether or not the literal is a Boolean

boolValue

public java.lang.Boolean boolValue()

gets the value if it is a boolean and returns null otherwise

doubleValue

public java.lang.Double doubleValue()

gets the value if it is a double (or integer) and returns null otherwise

intValue

public java.lang.Integer intValue()

gets the value if it is a integer and returns null otherwise

stringValue

public java.lang.String stringValue()

gets the value if it is a string and returns null otherwise

toString

public java.lang.String toString()

gets the string representation of the value stored by this literal

Overrides:

toString in class java.lang.Object