com.hazelcast.org.apache.calcite.sql.type.SqlOperandMetadata Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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package com.hazelcast.org.apache.calcite.sql.type;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.org.apache.calcite.rel.type.RelDataTypeFactory;
import java.util.List;
/**
* Extension to {@link SqlOperandTypeChecker} that also provides
* names and types of particular operands.
*
* It is intended for user-defined functions (UDFs), and therefore the number
* of parameters is fixed.
*
* @see OperandTypes
*/
public interface SqlOperandMetadata extends SqlOperandTypeChecker {
//~ Methods ----------------------------------------------------------------
/** Returns the types of the parameters. */
List paramTypes(RelDataTypeFactory typeFactory);
/** Returns the names of the parameters. */
List paramNames();
}