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/*
 * Copyright (C) 2017 Julien Viet
 *
 * Licensed 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 io.vertx.sqlclient.impl;

import io.vertx.sqlclient.Query;
import io.vertx.sqlclient.Row;
import io.vertx.sqlclient.RowSet;
import io.vertx.sqlclient.SqlResult;

import java.util.Objects;
import java.util.function.Function;
import java.util.stream.Collector;

/**
 * @author Julien Viet
 */
abstract class QueryBase> implements Query {

  protected final QueryExecutor builder;

  public QueryBase(QueryExecutor builder) {
    this.builder = builder;
  }

  protected abstract > QueryBase copy(QueryExecutor builder);

  @Override
  public  Query> collecting(Collector collector) {
    Objects.requireNonNull(collector, "Supplied collector must not be null");
    return copy(new QueryExecutor<>(SqlResultImpl::new, collector));
  }

  @Override
  public  Query> mapping(Function mapper) {
    Objects.requireNonNull(mapper, "Supplied mapper must not be null");
    return copy(new QueryExecutor<>(RowSetImpl.factory(), RowSetImpl.collector(mapper)));
  }
}