com.sap.cds.jdbc.hana.HanaPredicateMapper Maven / Gradle / Ivy
/************************************************************************
* © 2023-2024 SAP SE or an SAP affiliate company. All rights reserved. *
************************************************************************/
package com.sap.cds.jdbc.hana;
import com.sap.cds.jdbc.generic.GenericPredicateMapper;
import com.sap.cds.jdbc.generic.GenericPredicateModifier;
import com.sap.cds.jdbc.generic.UnfoldIsOperatorModifier;
import com.sap.cds.ql.CQL;
import com.sap.cds.ql.Value;
import com.sap.cds.ql.cqn.CqnComparisonPredicate.Operator;
import com.sap.cds.ql.cqn.CqnPredicate;
import com.sap.cds.ql.cqn.Modifier;
import static com.sap.cds.util.CqnStatementUtils.unfold;
public class HanaPredicateMapper extends GenericPredicateMapper {
@Override
public CqnPredicate apply(CqnPredicate pred) {
Modifier m = new GenericPredicateModifier() {
@Override
public CqnPredicate comparison(Value lhs, Operator op, Value rhs) {
CqnPredicate comp = CQL.comparison(lhs, op, rhs);
comp = switch (op) {
case GT, GE, LT, LE, IS, IS_NOT -> unfold(comp);
default -> comp;
};
return CQL.copy(comp, new UnfoldIsOperatorModifier());
}
};
return CQL.copy(pred, m);
}
}