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Merge pull request #311 from eclipse-jnosql/include-neo4j-support
Create support to Neo4J database
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‎CHANGELOG.adoc‎

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@@ -11,6 +11,7 @@ and this project adheres to https://semver.org/spec/v2.0.0.html[Semantic Version
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=== Added
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- Include TCK tests
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- Include support to Neo4J
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=== Changed
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‎README.adoc‎

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List<Person> people = template.solr("age:@age AND type:@type AND _entity:@entity", params);
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----
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== Neo4J
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=== Graph (Apache Tinkerpop)
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image::https://jnosql.github.io/img/logos/neo4j.png[Neo4J Project,align="center",width=25%,height=25%]
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https://neo4j.com/[Neo4J] is a highly scalable, native graph database designed to manage complex relationships in data. It enables developers to build applications that leverage the power of graph traversal, pattern matching, and high-performance querying using the **Cypher** query language.
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This API provides support for **Graph** database operations, including entity persistence, query execution via Cypher, and relationship traversal.
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=== How To Install
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You can use either the Maven or Gradle dependencies:
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[source,xml]
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----
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<dependency>
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<groupId>org.eclipse.jnosql.databases</groupId>
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<artifactId>jnosql-neo4j</artifactId>
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<version>1.1.4</version>
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</dependency>
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----
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=== Configuration
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This API provides the `Neo4JDatabaseConfigurations` class to programmatically establish the credentials. You can configure Neo4J properties using the https://microprofile.io/microprofile-config/[MicroProfile Config] specification.
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[cols="2,4"]
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|===
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| Configuration Property | Description
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| `jnosql.neo4j.uri` | The connection URI for the Neo4J database. Example: `bolt://localhost:7687`
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| `jnosql.neo4j.username` | The username for authentication.
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| `jnosql.neo4j.password` | The password for authentication.
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| `jnosql.neo4j.database` | The target database name.
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|===
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==== Example Using MicroProfile Config
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[source,properties]
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----
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jnosql.neo4j.uri=bolt://localhost:7687
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jnosql.neo4j.username=neo4j
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jnosql.neo4j.password=yourpassword
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jnosql.neo4j.database=neo4j
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----
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=== Template API
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The `Neo4JTemplate` interface extends `GraphTemplate` and allows for dynamic Cypher execution.
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[source,java]
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----
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@Inject
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private Neo4JTemplate template;
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List<Person> people = template.cypherQuery("MATCH (p:Person) WHERE p.name = $name RETURN p", params);
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var edge = template.edge(otavio, "FRIENDS_WITH", ada);
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----
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=== Repository Support
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The `Neo4JRepository` interface extends the `NoSQLRepository` interface and enables query execution using the `@Cypher` annotation.
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[source,java]
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----
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@Repository
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interface PersonRepository extends Neo4JRepository<Person, String> {
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@Cypher("MATCH (p:Person) RETURN p")
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List<Person> findAll();
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@Cypher("MATCH (p:Person) WHERE p.name = $name RETURN p")
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List<Person> findByName(@Param("name") String name);
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}
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----
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== Graph (Apache Tinkerpop)
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Currently, the Jakarta NoSQL doesn't define an API for Graph database types but Eclipse JNoSQL provides a Graph template to explore the specific behavior of this NoSQL type.
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‎jnosql-mongodb/src/main/java/org/eclipse/jnosql/databases/mongodb/communication/DocumentQueryConversor.java‎

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}
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case LIKE -> Filters.regex(document.name(), Pattern.compile(prepareRegexValue(value.toString())));
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case AND -> {
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List<CriteriaCondition> andList = condition.element().value().get(new TypeReference<>() {
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List<CriteriaCondition> andConditions = condition.element().value().get(new TypeReference<>() {
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});
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yield Filters.and(andList.stream()
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yield Filters.and(andConditions.stream()
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.map(DocumentQueryConversor::convert).toList());
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}
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case OR -> {
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List<CriteriaCondition> orList = condition.element().value().get(new TypeReference<>() {
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List<CriteriaCondition> orConditions = condition.element().value().get(new TypeReference<>() {
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});
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yield Filters.or(orList.stream()
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yield Filters.or(orConditions.stream()
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.map(DocumentQueryConversor::convert).toList());
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}
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case BETWEEN -> {

‎jnosql-neo4j/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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~ Copyright (c) 2022 Contributors to the Eclipse Foundation
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~ All rights reserved. This program and the accompanying materials
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~ are made available under the terms of the Eclipse Public License v1.0
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~ and Apache License v2.0 which accompanies this distribution.
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~ The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
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~ and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
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~
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~ You may elect to redistribute this code under either of these licenses.
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~
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~ Contributors:
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~
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~ Otavio Santana
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" 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/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.eclipse.jnosql.databases</groupId>
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<artifactId>jnosql-databases-parent</artifactId>
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<version>1.1.5-SNAPSHOT</version>
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</parent>
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<artifactId>jnosql-neo4j</artifactId>
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<properties>
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<neo4j.driver>5.27.0</neo4j.driver>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.neo4j.driver</groupId>
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<artifactId>neo4j-java-driver</artifactId>
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<version>${neo4j.driver}</version>
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</dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>jnosql-database-commons</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>org.eclipse.jnosql.mapping</groupId>
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<artifactId>jnosql-mapping-semistructured</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>neo4j</artifactId>
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<version>${testcontainers.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

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