com.hazelcast.jet.sql.impl.validate.operators.special.HazelcastValuesOperator 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.special;
import com.hazelcast.jet.sql.impl.validate.HazelcastCallBinding;
import com.hazelcast.jet.sql.impl.validate.operators.common.HazelcastSpecialOperator;
import com.hazelcast.jet.sql.impl.validate.operators.typeinference.ReplaceUnknownOperandTypeInference;
import com.hazelcast.org.apache.calcite.sql.SqlCall;
import com.hazelcast.org.apache.calcite.sql.SqlKind;
import com.hazelcast.org.apache.calcite.sql.SqlNode;
import com.hazelcast.org.apache.calcite.sql.SqlValuesOperator;
import com.hazelcast.org.apache.calcite.sql.SqlWriter;
import static com.hazelcast.org.apache.calcite.sql.type.SqlTypeName.BIGINT;
/**
* Hazelcast equivalent of {@link SqlValuesOperator}.
*/
public class HazelcastValuesOperator extends HazelcastSpecialOperator {
public HazelcastValuesOperator() {
super("VALUES", SqlKind.VALUES, 2, true,
b -> {
throw new UnsupportedOperationException();
},
new ReplaceUnknownOperandTypeInference(BIGINT));
}
@Override
protected boolean checkOperandTypes(HazelcastCallBinding callBinding, boolean throwOnFailure) {
throw new UnsupportedOperationException("never called for VALUES");
}
@Override
public void unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec) {
SqlWriter.Frame frame = writer.startList(SqlWriter.FrameTypeEnum.VALUES, "VALUES", "");
for (SqlNode operand : call.getOperandList()) {
writer.sep(",");
operand.unparse(writer, 0, 0);
}
writer.endList(frame);
}
}