org.problets.domain.model.expression.node.operator.logical
Class And

java.lang.Object
  org.problets.domain.model.DomainModel
      org.problets.domain.model.expression.node.NodeModel
          org.problets.domain.model.expression.node.operator.Operator
              org.problets.domain.model.expression.node.operator.logical.Logical
                  org.problets.domain.model.expression.node.operator.logical.ShortCircuitable
                      org.problets.domain.model.expression.node.operator.logical.And

All Implemented Interfaces:

java.lang.Cloneable

public class And
extends ShortCircuitable

To represent and operator

Author:

Joshua Go, Amruth Kumar

Field Summary

static java.lang.String	OPERATOR_INAPPLICABLE
static java.lang.String	SYMBOL

Fields inherited from class org.problets.domain.model.expression.node.operator.logical.Logical

TOTAL_OPERATORS

Fields inherited from class org.problets.domain.model.expression.node.operator.Operator

INCORRECT_OPERAND_COUNT

Fields inherited from class org.problets.domain.model.DomainModel

BOOLEAN, BREAKPOINT, CHARACTER, DOUBLE_PRECISION_REAL, ERROR_TYPE, EVAL_STATUS, expACTION, expASSIGNMENT, expAUTO_DEALLOCATION, expCALL, expCONDITION, expDECLARATION, expDEREFERENCING, expDYNAMIC_ALLOCATION, expDYNAMIC_ALLOCATION_INITIALIZATION, expDYNAMIC_DEALLOCATION, expELSE_CLAUSE, expERROR, expEXECUTION, expIF_CLAUSE, expINITIALIZATION, expINPUT, expPARAMETER_PASSING, expPRINT, expQUESTIONABLE, expREFERENCING, expRETURN, expRUNTIME_ERROR, expSEMANTIC_ERROR, expSYNTAX_ERROR, expUPDATE, IDENTITY, MAX_OBJECT_IDENTITY, MIN_OBJECT_IDENTITY, QUADRUPLE_PRECISION_REAL, RUNTIME_ERROR, SEMANTIC_ERROR, SIGNED_INTEGER, SIGNED_LONG, SIGNED_SHORT, SINGLE_PRECISION_REAL, SYNTAX_ERROR, UNDEFINED_TYPE, UNSIGNED_INTEGER, UNSIGNED_LONG, UNSIGNED_SHORT, WARNING

Constructor Summary

And()

Method Summary

Value	evaluate() Method to detect any errors before subclasses evaluate expressions Not to be used by client.
void	explain(java.util.Vector explanation, java.util.Vector errors) Textually explains the evaluation of the tree - as opposed to graphical explanation by the view

Methods inherited from class org.problets.domain.model.expression.node.operator.logical.ShortCircuitable

contentEquals, evaluate, getLocalLearningObjectives, main

Methods inherited from class org.problets.domain.model.expression.node.operator.logical.Logical

getQualifiedLearningObject, shouldAddRightExplanation

Methods inherited from class org.problets.domain.model.expression.node.operator.Operator

clone, coerceToReal, contentEquals, getArity, getAssociativity, getOperatorType, getPrecedence, getStudentCopy, getSymbol, grade, locateOperator, recursiveContentEquals, recursiveSetValue

Methods inherited from class org.problets.domain.model.expression.node.NodeModel

classifyNodes, getContent, getLeftChild, getNonRecursiveContent, getOrder, getPosition, getRecursiveContent, getRightChild, getSideEffects, getValue, insertInOrder, setLeftChild, setOrder, setPosition, setRightChild, setValue, shortCircuit, skip, subExpToString, toString, valueEquals

Methods inherited from class org.problets.domain.model.DomainModel

getId, getIdName, grade

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SYMBOL

public static final java.lang.String SYMBOL

See Also:

Constant Field Values

OPERATOR_INAPPLICABLE

public static final java.lang.String OPERATOR_INAPPLICABLE

See Also:

Constant Field Values

Constructor Detail

And

public And()

Method Detail

evaluate

public Value evaluate()

Description copied from class: Operator

Method to detect any errors before subclasses evaluate expressions Not to be used by client. Checks if both operands are valid Inherited by all except assignment and boolean operators

Overrides:

evaluate in class Operator

explain

public void explain(java.util.Vector explanation,
                    java.util.Vector errors)

Description copied from class: Operator

Textually explains the evaluation of the tree - as opposed to graphical explanation by the view

Overrides:

explain in class Operator