com.hazelcast.jet.sql.impl.validate.operators.common.HazelcastSpecialOperator Maven / Gradle / Ivy
/*
* Copyright 2021 Hazelcast Inc.
*
* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://hazelcast.com/hazelcast-community-license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.jet.sql.impl.validate.operators.common;
import com.hazelcast.jet.sql.impl.validate.HazelcastCallBinding;
import com.hazelcast.org.apache.calcite.sql.SqlCallBinding;
import com.hazelcast.org.apache.calcite.sql.SqlKind;
import com.hazelcast.org.apache.calcite.sql.SqlSpecialOperator;
import com.hazelcast.org.apache.calcite.sql.type.SqlOperandTypeInference;
import com.hazelcast.org.apache.calcite.sql.type.SqlReturnTypeInference;
import static com.hazelcast.jet.sql.impl.validate.operators.typeinference.HazelcastReturnTypeInference.wrap;
/**
* A common subclass for special operators.
*
* See {@link HazelcastOperandTypeCheckerAware} for motivation.
*/
public abstract class HazelcastSpecialOperator extends SqlSpecialOperator implements HazelcastOperandTypeCheckerAware {
protected HazelcastSpecialOperator(
String name,
SqlKind kind,
int prec,
boolean leftAssoc,
SqlReturnTypeInference returnTypeInference,
SqlOperandTypeInference operandTypeInference
) {
super(name, kind, prec, leftAssoc, wrap(returnTypeInference), operandTypeInference, null);
}
protected HazelcastSpecialOperator(String name, SqlKind kind) {
super(name, kind);
}
@Override
public final boolean checkOperandTypes(SqlCallBinding callBinding, boolean throwOnFailure) {
HazelcastCallBinding bindingOverride = prepareBinding(callBinding);
return checkOperandTypes(bindingOverride, throwOnFailure);
}
protected abstract boolean checkOperandTypes(HazelcastCallBinding callBinding, boolean throwOnFailure);
}