m-thirumal / gremlin-dsl

Gremlin DSL (Domain Specific Language) implementation guide

Gremlin DSL

Gremlin DSL (Domain Specific Language) Example/Guide.

For more information refer the link: https://tinkerpop.apache.org/docs/current/reference/#dsl

Dependency required

<dependency>
    <groupId>org.apache.tinkerpop</groupId>
    <artifactId>gremlin-annotations</artifactId>
    <version>3.6.1</version>
</dependency>

Eclipse Set up

• Import this project as maven spring-boot project.

• Typically, the Java compilation process is automatically configured to detect annotation processors on the classpath and will automatically use them when found.

• If that does not happen, it may be necessary to make configuration changes to the build to allow for the compilation process to be aware of the following javax.annotation.processing.Processor implementation:

org.apache.tinkerpop.gremlin.process.traversal.dsl.GremlinDslProcessor

• The annotation processor will generate several classes for the DSL:

SocialTraversal - A Traversal interface that extends the SocialTraversalDsl proxying methods to its underlying interfaces (such as GraphTraversal) to instead return a SocialTraversal

DefaultSocialTraversal - A default implementation of SocialTraversal (typically not used directly by the user)

SocialTraversalSource - Spawns DefaultSocialTraversal instances.

__ - Spawns anonymous DefaultSocialTraversal instances.

Annotation detection

• Right click on the project and select properties → Java compiler → Annotation Processing

  • Enable project specific settings

  • Go to Factory Path and add the jar path in the repo.

Link Generated source to the project for eclipse

• Right click on your project > Build Path > Configure Build Path

• In sources tag, click on [Add Folder] button

• Check target/generated-sources/annotations