Neo4j for Java developers

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Neo4j for Java Developers 2024 edition

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There is a LOT …and we will cover mostly all today 😅 Neo4j Inc. All ri hts reserved 2024 2

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me ● Workin on Sprin Data Neo4j and Neo4j-OGM @neo4j ● meistermeier.com meistermeier@mastodon.social ● JUG Ost alen leader Gerrit Meier Sta So tware En ineer Neo4j Inc. All ri hts reserved 2024 3

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Graph Database Neo4j Inc. All ri hts reserved 2024 5

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Neo4j Inc. All ri hts reserved 2024 6

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Neo4j Inc. All ri hts reserved 2024 7 :Person :Movie :ACTED_IN

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Properties ﹣ Boolean ﹣ Inte er ﹣ Float ﹣ Strin ﹣ Byte-array ﹣ Temporal ﹣ Spatial ﹣ List/Map Neo4j Inc. All ri hts reserved 2024 8 :Person :ACTED_IN

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Neo4j Neo4j Inc. All ri hts reserved 2024 10

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Neo4j Inc. All ri hts reserved 2024 15 Today’s plan Basic interaction/ connectivity Entity Mappin and Framework support Toolin Stored procedures and Drivers Libraries and Inte rations on top o Drivers Libraries and tools to make developer li es easier

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Stored Procedures Neo4j Inc. All ri hts reserved 2024 16

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Cypher 19 RVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION S RVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION SLIDE * INTERVENTION S MATCH (p:Person)-[:ACTED_IN]->(m:Movie) RETURN p,m

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Java Driver Neo4j Inc. All ri hts reserved 2024 20 … about the same API or Python, JavaScript, .NET or Go, i you have to

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Driver integration …just add conﬁ uration Neo4j Inc. All ri hts reserved 2024 23

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Object Mapping Instantiate It! Neo4j Inc. All ri hts reserved 2024 26

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CypherDSL Friends don’t let Friends write Cypher by Strin concatenation Neo4j Inc. All ri hts reserved 2024 31

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Neo4j CypherDSL Neo4j Inc. All ri hts reserved 2024 32 We were our ﬁrst users Sprin Data Neo4j without Strin concatenation Type-sa e way to write Statements Think o jOOQ Renders di erent Dialects and/or Formats No need to remember version speciﬁc rammar

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Neo4j JDBC We put SQL in your Cypher Neo4j Inc. All ri hts reserved 2024 36

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Neo4j JDBC Neo4j Inc. All ri hts reserved 2024 37 Pure JDBC Driver Implements Neo4j’s Bolt protocol Cypher statements and (some) SQL Optional Translator support Per ect inte ration into ETL / SQL tools Compatible with the JDBC spec

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But I don’t use any JVM For the ones who are here or the ree ood Neo4j Inc. All ri hts reserved 2024 38

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Neo4j Query API Neo4j Inc. All ri hts reserved 2024 39 Revamped HTTP server Pro rammin lan ua e a nostic Choose your ﬂavour Simple types or additional type in ormation Works nicely with clusters Read-only queries et redirected to read replicas

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Testcontainers Li e is too short to manually start a server Neo4j Inc. All ri hts reserved 2024 40

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There is even more Last but not least Neo4j Inc. All ri hts reserved 2024 42

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The hidden heroes Neo4j Inc. All ri hts reserved 2024 43 Neo4j-OGM Livin li e the puristic Java way Neo4j Mi rations Flyway inspired Database Mi rations Sprin or GraphQL / Sprin AI Inte ration o Neo4j rom the library side

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Thank you! @meistermeier Neo4j Inc. All ri hts reserved 2024 45