DozerDB

https://dozerdb.org
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DozerDB enhances Neo4j Community Edition with enterprise features including constraints, security...
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### Run DozerDB Docker Image

Source: https://dozerdb.org/

This command starts the DozerDB Docker image, mapping ports, mounting volumes for data and logs, and configuring authentication and plugins. It enables APOC import/export and all procedures by default. Remember to change the default password.

```bash
docker run \
    -p7474:7474 -p7687:7687 \
    -v $HOME/neo4j/data:/data \
    -v $HOME/neo4j/logs:/logs \
    -v $HOME/neo4j/import:/var/lib/neo4j/import \
    -v $HOME/neo4j/plugins:/plugins \
    --env NEO4J_AUTH=neo4j/password \
    --env NEO4J_PLUGINS='["apoc"]' \
    --env NEO4J_apoc_export_file_enabled=true \
    --env NEO4J_apoc_import_file_enabled=true \
    --env NEO4J_dbms_security_procedures_unrestricted='*'
    graphstack/dozerdb:5.26.3.0
```

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### Create and Use a Neo4j Database with DozerDB

Source: https://dozerdb.org/

These Cypher commands demonstrate how to create a new database named 'test1' and then switch to using it within the Neo4j environment enhanced by DozerDB.

```cypher
CREATE DATABASE test1;
:use test1
```

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### Set DozerDB Plugin Classpath Prefix on Linux/Mac

Source: https://dozerdb.org/

This command sets the CLASSPATH_PREFIX environment variable on Linux or macOS systems. It points to the DozerDB plugin JAR file located in the Neo4j plugins directory, which is necessary for the plugin to load correctly.

```bash
export CLASSPATH_PREFIX=$NEO4J_HOME/lib/dozerdb-plugin-x.x.x.x.jar
```

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### Set DozerDB Plugin Classpath Prefix on Windows

Source: https://dozerdb.org/

This command sets the CLASSPATH_PREFIX environment variable on Windows systems. It points to the DozerDB plugin JAR file located in the Neo4j plugins directory, which is necessary for the plugin to load correctly.

```batch
set CLASSPATH_PREFIX=%NEO4J_HOME%\lib\dozerdb-plugin-x.x.x.x.jar
```

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### DozerDB Plugin Activation Message

Source: https://dozerdb.org/

This message appears in the Neo4j log output when the DozerDB plugin is successfully activated. It confirms that the plugin is running and enhancing the Neo4j instance.

```text
*****************************************************************************
************************ Enhanced By DozerDB Plugin *************************
*****************************************************************************

```

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### Create a Neo4j Constraint Requiring a Property

Source: https://dozerdb.org/

This Cypher command creates a constraint for nodes labeled 'NodeX', ensuring that the 'email' property must not be null. This is useful for data integrity.

```cypher
CREATE CONSTRAINT FOR (n:NodeX) REQUIRE p.email IS NOT NULL;
```

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### Create a Unique Constraint for Movie Titles

Source: https://dozerdb.org/

This Cypher command creates a unique constraint on the 'title' property for nodes labeled 'Movie'. It ensures that each movie title is unique within the database, with an 'IF NOT EXISTS' clause to prevent errors if the constraint already exists.

```cypher
CREATE CONSTRAINT unique_movie_title IF NOT EXISTS FOR (movie:Movie) REQUIRE movie.title IS UNIQUE;
```
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