com.hazelcast.jet.sql.impl.validate.operators.math.HazelcastRoundTruncateFunction 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.math;
import com.hazelcast.jet.sql.impl.validate.HazelcastCallBinding;
import com.hazelcast.jet.sql.impl.validate.operand.NumericOperandChecker;
import com.hazelcast.jet.sql.impl.validate.operand.OperandCheckerProgram;
import com.hazelcast.jet.sql.impl.validate.operand.TypedOperandChecker;
import com.hazelcast.jet.sql.impl.validate.operators.typeinference.ReplaceUnknownOperandTypeInference;
import com.hazelcast.jet.sql.impl.validate.operators.common.HazelcastFunction;
import com.hazelcast.org.apache.calcite.sql.SqlFunctionCategory;
import com.hazelcast.org.apache.calcite.sql.SqlKind;
import com.hazelcast.org.apache.calcite.sql.SqlOperandCountRange;
import com.hazelcast.org.apache.calcite.sql.type.ReturnTypes;
import com.hazelcast.org.apache.calcite.sql.type.SqlOperandCountRanges;
import com.hazelcast.org.apache.calcite.sql.type.SqlTypeName;
import static com.hazelcast.org.apache.calcite.sql.type.SqlTypeName.DECIMAL;
import static com.hazelcast.org.apache.calcite.sql.type.SqlTypeName.INTEGER;
public final class HazelcastRoundTruncateFunction extends HazelcastFunction {
public static final HazelcastRoundTruncateFunction ROUND = new HazelcastRoundTruncateFunction("ROUND");
public static final HazelcastRoundTruncateFunction TRUNCATE = new HazelcastRoundTruncateFunction("TRUNCATE");
private HazelcastRoundTruncateFunction(String name) {
super(
name,
SqlKind.OTHER_FUNCTION,
ReturnTypes.ARG0_NULLABLE,
new ReplaceUnknownOperandTypeInference(new SqlTypeName[]{DECIMAL, INTEGER}),
SqlFunctionCategory.NUMERIC
);
}
@Override
public SqlOperandCountRange getOperandCountRange() {
return SqlOperandCountRanges.between(1, 2);
}
@Override
public boolean checkOperandTypes(HazelcastCallBinding binding, boolean throwOnFailure) {
if (binding.getOperandCount() == 1) {
return NumericOperandChecker.INSTANCE.check(binding, throwOnFailure, 0);
} else {
assert binding.getOperandCount() == 2;
return new OperandCheckerProgram(
NumericOperandChecker.INSTANCE,
TypedOperandChecker.INTEGER
).check(binding, throwOnFailure);
}
}
}