/**
* This method is recursively called and compose result <code>Criterion</code> for hibernate
* query.
*
* @param currentRes
* @return
* @see Restrictions
*/
private Criterion parseRestriction(Restrictions currentRes) {
log.trace("parsing restriction {}", currentRes);
if (currentRes instanceof Conjunction) { // inner node (AND, OR, ...)
Conjunction conjunction = (Conjunction) currentRes;
return parseConjuction(conjunction);
} else if (currentRes instanceof Expression) { // leaf node
Expression expression = (Expression) currentRes;
return parseExpression(expression);
} else {
log.error("Cannot parse leaf query class {}", currentRes);
throw new IllegalStateException(
String.format(
"Restrictions must be instance of 'Expression' or 'Conjunction', but %s is not",
currentRes.getClass().getName()));
}
}
