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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.
 */
package org.apache.calcite.adapter.os;

import org.apache.calcite.config.CalciteConnectionConfig;
import org.apache.calcite.schema.ScannableTable;
import org.apache.calcite.schema.Schema;
import org.apache.calcite.schema.Statistic;
import org.apache.calcite.schema.Statistics;
import org.apache.calcite.sql.SqlCall;
import org.apache.calcite.sql.SqlNode;
import org.apache.calcite.util.ImmutableBitSet;

import com.google.common.collect.ImmutableList;

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Abstract base class for implementations of OS table functions.
 */
abstract class AbstractBaseScannableTable implements ScannableTable {
  protected AbstractBaseScannableTable() {
  }

  @Override public Statistic getStatistic() {
    return Statistics.of(1000d, ImmutableList.of(ImmutableBitSet.of(1)));
  }

  @Override public Schema.TableType getJdbcTableType() {
    return Schema.TableType.TABLE;
  }

  @Override public boolean isRolledUp(String column) {
    return false;
  }

  @Override public boolean rolledUpColumnValidInsideAgg(String column, SqlCall call,
      @Nullable SqlNode parent, @Nullable CalciteConnectionConfig config) {
    return true;
  }
}