EvaluationResult

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org.eclipse.core.expressions
Class EvaluationResult

java.lang.Object
  org.eclipse.core.expressions.EvaluationResult

public class EvaluationResult
extends java.lang.Object

An evaluation result represents the result of an expression evaluation. There are exact three instances of evaluation result. They are: FALSE, TRUE and NOT_LOADED. NOT_LOADED represents the fact that an expression couldn't be evaluated since a plug-in providing certain test expressions isn't loaded yet.

In addition the class implements the three operation and, or and not. The operation are defined as follows:

The and operation:

AND	FALSE	TRUE	NOT_LOADED
FALSE	FALSE	FALSE	FALSE
TRUE	FALSE	TRUE	NOT_LOADED
NOT_LOADED	FALSE	NOT_LOADED	NOT_LOADED

The or operation:

OR	FALSE	TRUE	NOT_LOADED
FALSE	FALSE	TRUE	NOT_LOADED
TRUE	TRUE	TRUE	TRUE
NOT_LOADED	NOT_LOADED	TRUE	NOT_LOADED

The not operation:

NOT	FALSE	TRUE	NOT_LOADED
	TRUE	FALSE	NOT_LOADED

The class is not intended to be subclassed by clients.

Since:: 3.0

Field Summary

private static EvaluationResult[][] AND


static EvaluationResult FALSE
          The evaluation result representing the value FALSE

private static int FALSE_VALUE


private int fValue


private static EvaluationResult[] NOT


static EvaluationResult NOT_LOADED
          The evaluation result representing the value NOT_LOADED

private static int NOT_LOADED_VALUE


private static EvaluationResult[][] OR


static EvaluationResult TRUE
          The evaluation result representing the value TRUE

private static int TRUE_VALUE


Constructor Summary

private EvaluationResult(int value)


Method Summary

EvaluationResult and(EvaluationResult other)
          Returns an EvaluationResult whose value is this && other).

EvaluationResult not()
          Returns the inverted value of this evaluation result

EvaluationResult or(EvaluationResult other)
          Returns an EvaluationResult whose value is this || other).

java.lang.String toString()
          For debugging purpose only

static EvaluationResult valueOf(boolean b)
          Returns an evaluation result instance representing the given boolean value.

static EvaluationResult valueOf(java.lang.Boolean b)
          Returns a evaluation result instance representing the given Boolean value.

Methods inherited from class java.lang.Object

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

Field Detail

fValue

private int fValue

FALSE_VALUE

private static final int FALSE_VALUE

See Also:: Constant Field Values

TRUE_VALUE

private static final int TRUE_VALUE

See Also:: Constant Field Values

NOT_LOADED_VALUE

private static final int NOT_LOADED_VALUE

See Also:: Constant Field Values

FALSE

public static final EvaluationResult FALSE

The evaluation result representing the value FALSE

TRUE

public static final EvaluationResult TRUE

The evaluation result representing the value TRUE

NOT_LOADED

public static final EvaluationResult NOT_LOADED

The evaluation result representing the value NOT_LOADED

AND

private static final EvaluationResult[][] AND

OR

private static final EvaluationResult[][] OR

NOT

private static final EvaluationResult[] NOT

Constructor Detail