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Eclipse JNoSQL Mapping, Artemis API, to column NoSQL databases

There is a newer version: 0.0.9

/*
 *  Copyright (c) 2017 Otávio Santana and others
 *   All rights reserved. This program and the accompanying materials
 *   are made available under the terms of the Eclipse Public License v1.0
 *   and Apache License v2.0 which accompanies this distribution.
 *   The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 *   and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
 *
 *   You may elect to redistribute this code under either of these licenses.
 *
 *   Contributors:
 *
 *   Otavio Santana
 */
package org.jnosql.artemis.column;

import org.jnosql.artemis.PreparedStatementAsync;
import org.jnosql.diana.api.column.ColumnEntity;

import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;

import static java.util.Objects.requireNonNull;
import static java.util.stream.Collectors.toList;

final class ColumnPreparedStatementAsync implements PreparedStatementAsync {

    private final org.jnosql.diana.api.column.ColumnPreparedStatementAsync preparedStatementAsync;
    private final ColumnEntityConverter converter;

    ColumnPreparedStatementAsync(org.jnosql.diana.api.column.ColumnPreparedStatementAsync preparedStatementAsync,
                                 ColumnEntityConverter converter) {
        this.preparedStatementAsync = preparedStatementAsync;
        this.converter = converter;
    }

    @Override
    public PreparedStatementAsync bind(String name, Object value) {
        preparedStatementAsync.bind(name, value);
        return this;
    }

    @Override
    public  void getResultList(Consumer> callback) {
        requireNonNull(callback, "callback is required");

        Consumer> mapper = columnEntities -> callback.accept(columnEntities.stream().map(c -> (T) converter.toEntity(c))
                .collect(toList()));
        preparedStatementAsync.getResultList(mapper);
    }

    @Override
    public  void getSingleResult(Consumer> callback) {
        requireNonNull(callback, "callback is required");

        Consumer> mapper = columnEntity -> callback.accept(columnEntity.map(converter::toEntity));
        preparedStatementAsync.getSingleResult(mapper);
    }
}