How to use

equals

method

in

org.hisp.dhis.expression.Expression

@Override
public void deleteExpression( Expression expression )
{
  Iterator<ValidationRule> iterator = validationRuleService.getAllValidationRules().iterator();
  
  while ( iterator.hasNext() )
  {
    ValidationRule rule = iterator.next();
    
    Expression leftSide = rule.getLeftSide();
    Expression rightSide = rule.getRightSide();
    if ( (leftSide != null && leftSide.equals( expression )) ||
       (rightSide != null && rightSide.equals( expression )) )
    {
      iterator.remove();
      validationRuleService.deleteValidationRule( rule );
    }
  }
}
 

@Override
public void deleteExpression( Expression expression )
{
  Iterator<Predictor> iterator = predictorService.getAllPredictors().iterator();
  
  while ( iterator.hasNext() )
  {
    Predictor predictor = iterator.next();
    
    Expression generator = predictor.getGenerator();
    Expression skipTest= predictor.getSampleSkipTest();
    if ( generator != null && generator.equals( expression ) ||
       skipTest != null && skipTest.equals( expression ) )
    {
      iterator.remove();
      predictorService.deletePredictor ( predictor );
    }
  }
}