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MONGO_PORT=
MONGO_DB=
MONGO_USERNAME=
MONGO_PASSWORD=
MONGO_INITDB_ROOT_USERNAME=
MONGO_INITDB_ROOT_PASSWORD=
MONGO_INITDB_DATABASE=
LOG_LEVEL=DEBUG

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version: '3.8'

services:
  mongodb:
    image: mongo
    container_name: ${MONGO_CONTAINER_NAME}
    command: mongod --port ${MONGO_PORT}
    volumes:
      - mongodb_data:/data/db
      - ./mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js

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docker run -d --name <name> -v <volume_path>:/var/lib/postgresql/data -e POSTGRES_PASSWORD=<password> -e POSTGRES_USER=<username> -e POSTGRES_DB=<database_name> postgres:<tag>-alpine

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@Entity
@Table(name = "users")
public class User extends BaseEntity {

}

@Entity
public class Post extends BaseEntity {

  @NotBlank

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--> By author id:
Hibernate: 
    select
        post0_.id as id1_0_,
        post0_.author_id as author_i3_0_,
        post0_.message as message2_0_ 
    from
        post post0_ 
    left outer join
        users user1_ 

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startTime = System.nanoTime();
method();
endTime = System.nanoTime();
duration = (endTime - startTime);
results.add(duration);

average = results.stream().mapToLong(Long::longValue).average().getAsDouble()

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@Repository
public interface PostRepository extends CrudRepository<Post, Long> {

  Optional<Post> findTopByAuthorOrderByIdDesc(User author);

  Optional<Post> findTopByAuthorIdOrderByIdDesc(Long authorId);

  @Query("from Post where author_id = ?1 order by id desc")
  Optional<Post> findWithCustomQueryOrderByIdDesc(Long authorId);

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	@Rule
	public TemporaryFolder testFolder = new TemporaryFolder();

	private String filePath;

	private final String FILENAME = "testCsvFile.csv";

	@Test
	public void generate___shouldSucceed() throws IOException {

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import java.util.Collection;

import javax.persistence.ManyToMany;
import javax.persistence.MappedSuperclass;
import javax.persistence.OneToMany;

import weapon.rental.BaseEntity;
import weapon.rental.hero.domain.Hero;
import weapon.rental.invitation.Invitation;

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package krzysztof.javaee8.config;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("/api")
public class JaxRsActivator extends Application{

}