private QueryCriteria queryCriteriaCase(
AttributeQueryCriteria criteria, List<AttributeReference.Key> arg) {
final AttributeReference basicAttRef;
if (arg.isEmpty()) {
basicAttRef = criteria.getAttributeReference();
} else {
basicAttRef = criteria.getAttributeReference().prepend(arg);
}
DisjunctionBuilder disjunctionBuilder = new DisjunctionBuilder();
disjunctionBuilder.add(criteria);
for (int i = 0; i < basicAttRef.getKeys().size(); i++) {
AttributeReference existsAttRef = basicAttRef.subReference(0, i + 1);
List<AttributeReference.Key> newArg =
basicAttRef.getKeys().subList(i + 1, basicAttRef.getKeys().size());
QueryCriteria plainNewBody = criteria.accept(QUERY_CRITERIA_FACTORY, newArg);
QueryCriteria newBody =
plainNewBody.accept(this, Collections.<AttributeReference.Key>emptyList());
disjunctionBuilder.add(new ExistsQueryCriteria(existsAttRef, newBody));
}
return disjunctionBuilder.build();
}
@Override
public QueryCriteria visit(NotQueryCriteria criteria, List<AttributeReference.Key> arg) {
QueryCriteria subQuery = criteria.getSubQueryCriteria().accept(this, arg);
if (subQuery.equals(criteria.getSubQueryCriteria())) {
return criteria;
}
return new NotQueryCriteria(subQuery);
}
@Override
public QueryCriteria visit(NotQueryCriteria criteria, Void arg) {
QueryCriteria subQuery = criteria.getSubQueryCriteria().accept(this, null);
if (subQuery.equals(criteria.getSubQueryCriteria())) {
return criteria;
}
return new NotQueryCriteria(subQuery);
}
@Override
public QueryCriteria visit(OrQueryCriteria criteria, List<AttributeReference.Key> arg) {
QueryCriteria subQuery1 = criteria.getSubQueryCriteria1().accept(this, arg);
QueryCriteria subQuery2 = criteria.getSubQueryCriteria2().accept(this, arg);
if (subQuery1.equals(criteria.getSubQueryCriteria1())
&& subQuery2.equals(criteria.getSubQueryCriteria2())) {
return criteria;
}
return new OrQueryCriteria(subQuery1, subQuery2);
}
@Override
public QueryCriteria visit(OrQueryCriteria criteria, Void arg) {
QueryCriteria subQuery1 = criteria.getSubQueryCriteria1().accept(this, null);
QueryCriteria subQuery2 = criteria.getSubQueryCriteria2().accept(this, null);
if (subQuery1.equals(criteria.getSubQueryCriteria1())
&& subQuery2.equals(criteria.getSubQueryCriteria2())) {
return criteria;
}
return new OrQueryCriteria(subQuery1, subQuery2);
}
public static QueryCriteria translate(QueryCriteria queryCriteria) {
QueryCriteria withArrayAlternative = queryCriteria.accept(ARRAY_REFERENCE_CREATOR, null);
return withArrayAlternative.accept(
OR_EXISTS_CREATOR, Collections.<AttributeReference.Key>emptyList());
}