org.problets.domain.model.control.selection
Class CaseModel

java.lang.Object
  org.problets.domain.model.DomainModel
      org.problets.domain.model.control.ControlModel
          org.problets.domain.model.control.ConditionControl
              org.problets.domain.model.control.selection.Selection
                  org.problets.domain.model.control.selection.CaseModel

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

DefaultCaseModel

public class CaseModel
extends Selection

Class: CaseModel Purpose: For every case, parses statements, blocks, and nested switch statements and adds it to statement sequence or block

Field Summary

Fields inherited from class org.problets.domain.model.control.ConditionControl

INCORRECT_TYPE

Fields inherited from class org.problets.domain.model.control.ControlModel

ABORT_EXECUTION, BREAK_EXECUTION, CONTINUE_EXECUTION, END_EXECUTION, INFINITE_EXECUTION, RETURN_EXECUTION, RUN_TIME_ERROR_EXECUTION, SKIP_EXECUTION

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

CaseModel(ActivationRecord parent, HeapModel heap, java.lang.String in_template, java.util.Vector statements)
Constructor

Method Summary

ExecutionStatus	explainProcess(RunEnv runEnv, Behavior behavior, boolean stepFlag) public int explainProcess( RunEnv runEnv, Behavior behavior, boolean stepFlag) Single case is checked and explained if it is correct
void	getCode(java.util.Vector codeText, OutputStream output) public void getCode(Vector codeText, OutputStream output, Object caseModel) Display single case on the screen at a time
java.lang.String	getHeader() Gets the Header for the case
java.lang.String	getProcessedExpression() Processed version of caseValueExpression
static boolean	grade(java.lang.String template, java.lang.String studentCode) Grade is used for checking student's code compared to the actual code.
static boolean	gradeOld(java.lang.String template, java.lang.String studentCode) Grade is used for checking student's code compared to the actual code.
boolean	matches(StackModel stack, Value conditionValue) public boolean matches( Value conditionValue ) Matches the value of switch condition and the case value

Methods inherited from class org.problets.domain.model.control.selection.Selection

main

Methods inherited from class org.problets.domain.model.control.ConditionControl

getPossibleErrors

Methods inherited from class org.problets.domain.model.control.ControlModel

getCodeLength, getName, getStartLineNumber

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

clone, getId, getIdName

Methods inherited from class java.lang.Object

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

Constructor Detail

CaseModel

public CaseModel(ActivationRecord parent,
                 HeapModel heap,
                 java.lang.String in_template,
                 java.util.Vector statements)

Constructor

Parameters:

parent - - the nested scope's parent activation record

heap - - the heap to be used

in_template - - the template to be parsed

statements - - contains the cases and its statements

Method Detail

getProcessedExpression

public java.lang.String getProcessedExpression()

Processed version of caseValueExpression

matches

public boolean matches(StackModel stack,
                       Value conditionValue)

public boolean matches( Value conditionValue ) Matches the value of switch condition and the case value

Parameters:

conditionValue - - Integer value of the switch condition

Returns:

- True if the match is found else false

getHeader

public java.lang.String getHeader()

Gets the Header for the case

getCode

public void getCode(java.util.Vector codeText,
                    OutputStream output)

public void getCode(Vector codeText, OutputStream output, Object caseModel) Display single case on the screen at a time

Overrides:

getCode in class ControlModel

Parameters:

codeText - - a Vector that holds the code

output - - For outputting the code on the screen

caseModel - - Hold the current case which is executed

explainProcess

public ExecutionStatus explainProcess(RunEnv runEnv,
                                      Behavior behavior,
                                      boolean stepFlag)

public int explainProcess( RunEnv runEnv, Behavior behavior, boolean stepFlag) Single case is checked and explained if it is correct

Overrides:

explainProcess in class ControlModel

Parameters:

runEnv - - Run Environment of the program

behavior - - behavior of the program

stepFlag - - execution flag

Returns:

status of the program

grade

public static boolean grade(java.lang.String template,
                            java.lang.String studentCode)

Grade is used for checking student's code compared to the actual code.

gradeOld

public static boolean gradeOld(java.lang.String template,
                               java.lang.String studentCode)

Grade is used for checking student's code compared to the actual code. - grade() supersedes this.