Spring Data Google Cloud Datastore
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README.rst

Spring Data Google Cloud Datastore

Setup

Gradle

To use spring-data-gclouddatastore from a Gradle project:

repositories {
    // ...
    maven {
        url 'http://dl.bintray.com/tkob/maven'
    }
    // ...
}

dependencies {
    // ...
    compile 'yokohama.unit:spring-data-gclouddatastore:0.3.1'
    // ...
}

Maven

To use spring-data-gclouddatastore from a Maven project:

<repositories>
    <repository>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
        <id>bintray-tkob-maven</id>
        <name>bintray</name>
        <url>http://dl.bintray.com/tkob/maven</url>
    </repository>
</repositories>

<dependencies>
    <!-- ... -->
    <dependency>
        <groupId>yokohama.unit</groupId>
        <artifactId>spring-data-gclouddatastore</artifactId>
        <version>0.3.1</version>
    </dependency>
    <!-- ... -->
</dependencies>

Example

Person model:

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.annotation.Id;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Person {
    @Id long id;
    String firstName;
    String lastName;
    String emailAddress;
}

Spring Boot application:

import java.util.List;
import java.util.stream.Collectors;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.gclouddatastore.repository.EnableGcloudDatastoreRepositories;
import org.springframework.data.gclouddatastore.repository.GcloudDatastoreRepository;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.GetMapping;

interface PersonRepository extends GcloudDatastoreRepository<Person, Long> {
    List<Person> findByEmailAddressAndLastName(
            String emailAddress, String lastName);
}

@EnableAutoConfiguration
@EnableGcloudDatastoreRepositories
public class Application {
    @RestController
    public static class Controller {
        @Autowired
        PersonRepository personRepository;

        @GetMapping("/")
        public String root() {
            Person person1 = new Person(1, "Jane", "Doe", "jane@example.com");
            personRepository.save(person1);

            List<Person> persons = personRepository
                .findByEmailAddressAndLastName("jane@example.com", "Doe");
            return
                persons.stream().map(Person::getFirstName).collect(Collectors.joining("\n"));
        }
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }
}