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feat(GH-235): added Relay Connection support (#236)
* feat(GH-235): added Relay Connection support * feat: Added Relay example Spring Boot test
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‎graphql-jpa-query-autoconfigure/src/main/java/com/introproventures/graphql/jpa/query/autoconfigure/GraphQLJpaQueryProperties.java

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@@ -50,6 +50,11 @@ public class GraphQLJpaQueryProperties {
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* Set default value for optional argument for join fetch collections.
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*/
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private boolean toManyDefaultOptional = true;
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/**
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* Enable or disable GraphQL Relay Connection support. Default is false
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*/
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private boolean enableRelay = false;
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/**
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* Enable or disable QraphQL module services.
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public void setToManyDefaultOptional(boolean toManyDefaultOptional) {
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this.toManyDefaultOptional = toManyDefaultOptional;
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}
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public boolean isEnableRelay() {
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return enableRelay;
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}
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public void setEnableRelay(boolean enableRelay) {
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this.enableRelay = enableRelay;
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}
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}

‎graphql-jpa-query-boot-starter/src/main/java/com/introproventures/graphql/jpa/query/boot/autoconfigure/GraphQLJpaQueryAutoConfiguration.java

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package com.introproventures.graphql.jpa.query.boot.autoconfigure;
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import javax.persistence.EntityManager;
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import javax.persistence.EntityManagerFactory;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import com.introproventures.graphql.jpa.query.autoconfigure.GraphQLSchemaConfigurer;
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import com.introproventures.graphql.jpa.query.autoconfigure.GraphQLShemaRegistration;
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import com.introproventures.graphql.jpa.query.schema.GraphQLExecutor;
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import com.introproventures.graphql.jpa.query.schema.GraphQLSchemaBuilder;
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import com.introproventures.graphql.jpa.query.schema.impl.GraphQLJpaExecutor;
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@ConditionalOnProperty(name="spring.graphql.jpa.query.enabled", havingValue="true", matchIfMissing=true)
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public class GraphQLJpaQueryAutoConfiguration {
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@Configuration
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public static class GraphQLJpaQuerySchemaConfigurer implements GraphQLSchemaConfigurer {
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private final GraphQLSchemaBuilder graphQLSchemaBuilder;
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public GraphQLJpaQuerySchemaConfigurer(GraphQLSchemaBuilder graphQLSchemaBuilder) {
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this.graphQLSchemaBuilder = graphQLSchemaBuilder;
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}
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@Override
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public void configure(GraphQLShemaRegistration registry) {
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registry.register(graphQLSchemaBuilder.build());
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}
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@Bean
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@ConditionalOnMissingBean
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@ConditionalOnSingleCandidate(EntityManagerFactory.class)
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public GraphQLSchemaBuilder graphQLSchemaBuilder(final EntityManagerFactory entityManagerFactory) {
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return new GraphQLJpaSchemaBuilder(entityManagerFactory.createEntityManager());
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}
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@Bean
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@ConditionalOnMissingBean
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public GraphQLSchemaConfigurer graphQLJpaQuerySchemaConfigurer(GraphQLSchemaBuilder graphQLSchemaBuilder) {
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return (registry) -> {
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registry.register(graphQLSchemaBuilder.build());
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};
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}
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@Configuration
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public static class DefaultGraphQLJpaQueryConfiguration {
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‎graphql-jpa-query-example-relay/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>graphql-jpa-query-example-relay</artifactId>
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<parent>
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<groupId>com.introproventures</groupId>
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<artifactId>graphql-jpa-query-build</artifactId>
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<version>0.3.38-SNAPSHOT</version>
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<relativePath>../graphql-jpa-query-build</relativePath>
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</parent>
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<properties>
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<maven.deploy.skip>true</maven.deploy.skip>
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<skipDocker>false</skipDocker>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.introproventures</groupId>
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<artifactId>graphql-jpa-query-boot-starter</artifactId>
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</dependency>
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<dependency>
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<groupId>com.introproventures</groupId>
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<artifactId>graphql-jpa-query-graphiql</artifactId>
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</dependency>
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<dependency>
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<groupId>com.introproventures</groupId>
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<artifactId>graphql-jpa-query-example-model-books</artifactId>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</dependency>
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</dependencies>
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<build>
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<finalName>${project.artifactId}</finalName>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>1.5.6.RELEASE</version>
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<executions>
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<execution>
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<goals>
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<goal>repackage</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎graphql-jpa-query-example-relay/src/main/java/com/introproventures/graphql/jpa/query/example/relay/Application.java

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/*
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* Copyright 2017 IntroPro Ventures, Inc. and/or its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.introproventures.graphql.jpa.query.example.relay;
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import javax.persistence.EntityManager;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.autoconfigure.domain.EntityScan;
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import org.springframework.context.annotation.Configuration;
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import com.introproventures.graphql.jpa.query.autoconfigure.GraphQLJpaQueryProperties;
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import com.introproventures.graphql.jpa.query.autoconfigure.GraphQLSchemaConfigurer;
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import com.introproventures.graphql.jpa.query.autoconfigure.GraphQLShemaRegistration;
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import com.introproventures.graphql.jpa.query.schema.impl.GraphQLJpaSchemaBuilder;
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import com.introproventures.graphql.jpa.query.schema.model.book.Book;
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/**
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* GraphQL JPA Query Example Relay with Spring Boot Autoconfiguration
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*
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* You can configure GraphQL JPA Query properties in application.yml
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*
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* @author Igor Dianov
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*
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*/
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@SpringBootApplication
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@EntityScan(basePackageClasses=Book.class)
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public class Application {
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public static void main(String[] args) {
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SpringApplication.run(Application.class, args);
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}
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@Configuration
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public static class GraphQLJpaQuerySchemaConfigurer implements GraphQLSchemaConfigurer {
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private final EntityManager entityManager;
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@Autowired
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private GraphQLJpaQueryProperties properties;
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public GraphQLJpaQuerySchemaConfigurer(EntityManager entityManager) {
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this.entityManager = entityManager;
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}
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@Override
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public void configure(GraphQLShemaRegistration registry) {
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registry.register(
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new GraphQLJpaSchemaBuilder(entityManager)
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.name(properties.getName())
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.description(properties.getDescription())
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.useDistinctParameter(properties.isUseDistinctParameter())
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.defaultDistinct(properties.isDefaultDistinct())
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.enableRelay(properties.isEnableRelay())
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.build()
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);
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}
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}
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}

‎graphql-jpa-query-example-relay/src/main/resources/application.yml

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spring:
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jpa:
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hibernate.ddl-auto: create-drop
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generate-ddl: true
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show-sql: true
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open-in-view: false
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properties:
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hibernate.format_sql: true
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h2:
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console.enabled: true
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graphql:
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jpa:
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query:
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name: BooksRelay
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description: GraphQL Jpa Query Books Relay Example
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enable-relay: true
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logging:
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level:
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com.introproventures.graphql.jpa.query.schema: DEBUG
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‎graphql-jpa-query-example-relay/src/main/resources/data.sql

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-- Books
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insert into author (id, name, genre) values (1, 'Leo Tolstoy', 'NOVEL');
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insert into book (id, title, author_id, genre, publication_date, description)
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values (2, 'War and Peace', 1, 'NOVEL', '1869-01-01', 'The novel chronicles the history of the French invasion of Russia and the impact of the Napoleonic era on Tsarist society through the stories of five Russian aristocratic families.');
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insert into book (id, title, author_id, genre, publication_date, description)
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values (3, 'Anna Karenina', 1, 'NOVEL', '1877-04-01', 'A complex novel in eight parts, with more than a dozen major characters, it is spread over more than 800 pages (depending on the translation), typically contained in two volumes.');
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insert into author (id, name, genre) values (4, 'Anton Chekhov', 'PLAY');
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insert into book (id, title, author_id, genre, publication_date, description)
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values (5, 'The Cherry Orchard', 4, 'PLAY', '1904-01-17', 'The play concerns an aristocratic Russian landowner who returns to her family estate (which includes a large and well-known cherry orchard) just before it is auctioned to pay the mortgage.');
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insert into book (id, title, author_id, genre, publication_date, description)
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values (6, 'The Seagull', 4, 'PLAY', '1896-10-17', 'It dramatises the romantic and artistic conflicts between four characters');
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insert into book (id, title, author_id, genre, publication_date, description)
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values (7, 'Three Sisters', 4, 'PLAY', '1900-01-01', 'The play is sometimes included on the short list of Chekhov''s outstanding plays, along with The Cherry Orchard, The Seagull and Uncle Vanya.[1]');
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insert into author (id, name, genre) values (8, 'Igor Dianov', 'JAVA');
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insert into book_tags (book_id, tags) values (2, 'war'), (2, 'piece');
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insert into book_tags (book_id, tags) values (3, 'anna'), (3, 'karenina');
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insert into book_tags (book_id, tags) values (5, 'cherry'), (5, 'orchard');
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insert into book_tags (book_id, tags) values (6, 'seagull');
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insert into book_tags (book_id, tags) values (7, 'three'), (7, 'sisters');
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insert into author_phone_numbers(phone_number, author_id) values
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('1-123-1234', 1),
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('1-123-5678', 1),
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('4-123-1234', 4),
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('4-123-5678', 4);

‎graphql-jpa-query-example-relay/src/test/java/com/introproventures/graphql/jpa/query/example/relay/ApplicationTest.java

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package com.introproventures.graphql.jpa.query.example.relay;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)
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public class ApplicationTest {
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@Test
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public void contextLoads() {
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// success
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}
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}

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