/*
 * Copyright 2019 Immutables Authors and Contributors
 *
 * 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 org.immutables.criteria.mongo;

import org.bson.conversions.Bson;
import org.immutables.criteria.backend.Backend;
import org.immutables.criteria.expression.ExpressionConverter;

import java.util.Objects;

/**
 * Allows to query and modify mongo documents using criteria API.
 *
 * <p>Based on <a href="https://mongodb.github.io/mongo-java-driver-reactivestreams/">Mongo reactive streams driver</a>
 */
public class MongoBackend implements Backend {

  private final CollectionResolver resolver;
  private final ExpressionConverter<Bson> converter;

  MongoBackend(CollectionResolver resolver) {
    this.resolver = Objects.requireNonNull(resolver, "resolver");
    this.converter = Mongos.converter();
  }

  @Override
  public Session open(Class<?> context) {
    Objects.requireNonNull(context, "context");
    return new MongoSession(resolver.resolve(context), converter);
  }

}

/*
 * Copyright 2019 Immutables Authors and Contributors
 *
 * 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 org.immutables.criteria.mongo;

import org.bson.conversions.Bson;
import org.immutables.criteria.backend.Backend;
import org.immutables.criteria.expression.ExpressionConverter;

import java.util.Objects;

/**
 * Allows to query and modify mongo documents using criteria API.
 *
 * <p>Based on <a href="https://mongodb.github.io/mongo-java-driver-reactivestreams/">Mongo reactive streams driver</a>
 */
public class MongoBackend implements Backend {

  private final CollectionResolver resolver;
  private final ExpressionConverter<Bson> converter;

  public MongoBackend(CollectionResolver resolver) {
    this.resolver = Objects.requireNonNull(resolver, "resolver");
    this.converter = Mongos.converter();
  }

  @Override
  public Session open(Class<?> context) {
    Objects.requireNonNull(context, "context");
    return new MongoSession(resolver.resolve(context), converter);
  }

}

Make MongoBackend constructor public