JanusGraph: print vertex and edge labels, indexes, and property keys.

Below snippet is used to print vertex and edge labels, indexes, and property keys.

JanusGraphManagement janusGraphManagement = janusGraph.openManagement();
String schema = janusGraphManagement.printSchema();
System.out.println(schema);

Find the below working application.

 

PrintSchema.java

package com.sample.app.schema;

import org.janusgraph.core.JanusGraph;
import org.janusgraph.core.JanusGraphFactory;
import org.janusgraph.core.schema.JanusGraphManagement;

public class PrintSchema {
	public static void main(String args[]) {

		try (JanusGraph janusGraph = JanusGraphFactory.open("/Users/Shared/janus.properties")) {

			JanusGraphManagement janusGraphManagement = janusGraph.openManagement();
			String schema = janusGraphManagement.printSchema();
			System.out.println(schema);
		} finally {
			System.out.println("\nDone!!!");
		}

	}
}

Output

------------------------------------------------------------------------------------------------
Vertex Label Name              | Partitioned | Static                                             |
---------------------------------------------------------------------------------------------------
person                         | false       | false                                              |
employee                       | false       | false                                              |
---------------------------------------------------------------------------------------------------
Edge Label Name                | Directed    | Unidirected | Multiplicity                         |
---------------------------------------------------------------------------------------------------
knows                          | true        | false       | MULTI                                |
---------------------------------------------------------------------------------------------------
Property Key Name              | Cardinality | Data Type                                          |
---------------------------------------------------------------------------------------------------
name                           | SINGLE      | class java.lang.String                             |
age                            | SINGLE      | class java.lang.Integer                            |
gender                         | SINGLE      | class java.lang.Character                          |
from                           | SINGLE      | class java.lang.Integer                            |
colleague                      | SINGLE      | class java.lang.String                             |
hobbies                        | SET         | class java.lang.String                             |
football                       | SINGLE      | class java.lang.String                             |
experience                     | SINGLE      | class java.lang.Double                             |
ABC Corp                       | SINGLE      | class java.lang.Double                             |
Delta Inc                      | SINGLE      | class java.lang.Double                             |
since                          | SINGLE      | class java.lang.Integer                            |
---------------------------------------------------------------------------------------------------
Graph Index (Vertex)           | Type        | Unique    | Backing        | Key:           Status |
---------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
Graph Index (Edge)             | Type        | Unique    | Backing        | Key:           Status |
---------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
Relation Index (VCI)           | Type        | Direction | Sort Key       | Order    |     Status |
---------------------------------------------------------------------------------------------------


Done!!!

 

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