org.olat.course.condition.interpreter
Class ConditionInterpreter

java.lang.Object
  org.olat.course.condition.interpreter.ConditionInterpreter

Direct Known Subclasses:

OnlyGroupConditionInterpreter

public class ConditionInterpreter
extends java.lang.Object

Initial Date: Jan 27, 2004

Author:

gnaegi Comment:

Field Summary

static java.lang.Integer	INT_FALSE static Integer(0) object
static java.lang.Integer	INT_TRUE static Integer(1) object

Constructor Summary

ConditionInterpreter(UserCourseEnvironment userCourseEnv)
ConditionInterpreter interpretes course conditions.

Method Summary

float	evaluateCalculation(java.lang.String calculation) Evaluates a calculation.
boolean	evaluateCondition(Condition c) Evaluates a condition.
boolean	evaluateCondition(java.lang.String condition) Evaluates a condition.
static void	main(java.lang.String[] args) Test method for condition interpreter using the dummy lu callback
ConditionErrorMessage	syntaxTestCalculation(java.lang.String expression) Deprecated. TODO: remove as it is no longer referenced, except test?
ConditionErrorMessage[]	syntaxTestExpression(ConditionExpression condExpr)

Methods inherited from class java.lang.Object

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

Field Detail

INT_TRUE

public static final java.lang.Integer INT_TRUE

static Integer(1) object

INT_FALSE

public static final java.lang.Integer INT_FALSE

static Integer(0) object

Constructor Detail

ConditionInterpreter

public ConditionInterpreter(UserCourseEnvironment userCourseEnv)

ConditionInterpreter interpretes course conditions.

Parameters:

userCourseEnv -

Method Detail

syntaxTestExpression

public ConditionErrorMessage[] syntaxTestExpression(ConditionExpression condExpr)

Parameters:

expression -

Returns:

null if no error, else the error msg

syntaxTestCalculation

public ConditionErrorMessage syntaxTestCalculation(java.lang.String expression)

Deprecated. TODO: remove as it is no longer referenced, except test?

Check an expression on syntactical errors.

Parameters:

expression -

Returns:

Null if syntactically correct, error message otherwise.

evaluateCondition

public boolean evaluateCondition(Condition c)

Evaluates a condition.

Parameters:

c -

Returns:

True if evaluation successfull.

evaluateCondition

public boolean evaluateCondition(java.lang.String condition)

Evaluates a condition.

Parameters:

condition -

Returns:

True if evaluation successfull.

evaluateCalculation

public float evaluateCalculation(java.lang.String calculation)

Evaluates a calculation.

Parameters:

calculation -

Returns:

True if evaluation successfull.

main

public static void main(java.lang.String[] args)

Test method for condition interpreter using the dummy lu callback

Parameters:

args -