hazelcast-master/hazelcast-sql/src/main/java/com/hazelcast/jet/sql/impl/aggregate/function/HazelcastHopTableFunction.java
/*
 * Copyright 2023 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.aggregate.function;

import com.hazelcast.jet.sql.impl.schema.HazelcastTableFunctionParameter;
import com.hazelcast.jet.sql.impl.validate.operand.AnyOperandChecker;
import com.hazelcast.jet.sql.impl.validate.operand.TypedOperandChecker;
import org.apache.calcite.sql.SqlKind;
import org.apache.calcite.sql.type.SqlTypeName;

import java.util.List;

import static java.util.Arrays.asList;

public class HazelcastHopTableFunction extends HazelcastWindowTableFunction {

    private static final List<HazelcastTableFunctionParameter> PARAMETERS = asList(
            new HazelcastTableFunctionParameter(0, "input", SqlTypeName.ROW, false, TypedOperandChecker.ROW),
            new HazelcastTableFunctionParameter(1, "time_col", SqlTypeName.COLUMN_LIST, false, TypedOperandChecker.COLUMN_LIST),
            new HazelcastTableFunctionParameter(2, "window_size", SqlTypeName.ANY, false, AnyOperandChecker.INSTANCE),
            new HazelcastTableFunctionParameter(3, "slide_size", SqlTypeName.ANY, false, AnyOperandChecker.INSTANCE)
    );

    public HazelcastHopTableFunction() {
        super(SqlKind.HOP, new WindowOperandMetadata(PARAMETERS, new int[]{2, 3}), 1);
    }
}
