org.janusgraph.example

Class JanusGraphApp

java.lang.Object

org.janusgraph.example.GraphApp

org.janusgraph.example.JanusGraphApp

public class JanusGraphApp
extends GraphApp

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	APP_NAME
protected static String	BERKELEYJE
protected static String	CASSANDRA
protected static String	CQL
protected static String	ELASTICSEARCH
protected static String	HBASE
protected static String	INMEMORY
protected static String	LUCENE
protected static String	MIXED_INDEX_CONFIG_NAME
protected String	mixedIndexConfigName
protected static String	SOLR
protected boolean	useMixedIndex

Fields inherited from class org.janusgraph.example.GraphApp

conf, g, graph, propFileName, supportsGeoshape, supportsSchema, supportsTransactions

Constructor Summary

Constructors

Constructor and Description
JanusGraphApp(String fileName) Constructs a graph app using the given properties.

Method Summary

Modifier and Type	Method and Description
protected void	createCompositeIndexes(JanusGraphManagement management) Creates the composite indexes.
protected void	createEdgeLabels(JanusGraphManagement management) Creates the edge labels.
void	createElements() Adds the vertices, edges, and properties to the graph.
protected void	createMixedIndexes(JanusGraphManagement management) Creates the mixed indexes.
protected void	createProperties(JanusGraphManagement management) Creates the properties for vertices, edges, and meta-properties.
void	createSchema() Creates the graph schema.
protected String	createSchemaRequest() Returns a string representation of the schema generation code.
protected void	createVertexLabels(JanusGraphManagement management) Creates the vertex labels.
void	dropGraph() Drops the graph instance.
protected JanusGraph	getJanusGraph() Returns the JanusGraph instance.
static void	main(String[] args)
org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource	openGraph() Opens the graph instance.

Methods inherited from class org.janusgraph.example.GraphApp

closeGraph, deleteElements, getGeoFloatArray, readElements, runApp, updateElements

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

APP_NAME

protected static final String APP_NAME

See Also:

Constant Field Values

MIXED_INDEX_CONFIG_NAME

protected static final String MIXED_INDEX_CONFIG_NAME

See Also:

Constant Field Values

BERKELEYJE

protected static final String BERKELEYJE

See Also:

Constant Field Values

CASSANDRA

protected static final String CASSANDRA

See Also:

Constant Field Values

CQL

protected static final String CQL

See Also:

Constant Field Values

HBASE

protected static final String HBASE

See Also:

Constant Field Values

INMEMORY

protected static final String INMEMORY

See Also:

Constant Field Values

LUCENE

protected static final String LUCENE

See Also:

Constant Field Values

ELASTICSEARCH

protected static final String ELASTICSEARCH

See Also:

Constant Field Values

SOLR

protected static final String SOLR

See Also:

Constant Field Values

useMixedIndex

protected boolean useMixedIndex

mixedIndexConfigName

protected String mixedIndexConfigName

Constructor Detail

JanusGraphApp

public JanusGraphApp(String fileName)

Constructs a graph app using the given properties.

Parameters:

fileName - location of the properties file

Method Detail

openGraph

public org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource openGraph()
                                                                                        throws org.apache.commons.configuration2.ex.ConfigurationException,
                                                                                               IOException

Description copied from class: GraphApp

Opens the graph instance. If the graph instance does not exist, a new graph instance is initialized.

Overrides:

openGraph in class GraphApp

Throws:

org.apache.commons.configuration2.ex.ConfigurationException

IOException

dropGraph

public void dropGraph()
               throws Exception

Description copied from class: GraphApp

Drops the graph instance. The default implementation does nothing.

Overrides:

dropGraph in class GraphApp

Throws:

Exception

createElements

public void createElements()

Description copied from class: GraphApp

Adds the vertices, edges, and properties to the graph.

Overrides:

createElements in class GraphApp

getJanusGraph

protected JanusGraph getJanusGraph()

Returns the JanusGraph instance.

createSchema

public void createSchema()

Description copied from class: GraphApp

Creates the graph schema. The default implementation does nothing.

Overrides:

createSchema in class GraphApp

createVertexLabels

protected void createVertexLabels(JanusGraphManagement management)

Creates the vertex labels.

createEdgeLabels

protected void createEdgeLabels(JanusGraphManagement management)

Creates the edge labels.

createProperties

protected void createProperties(JanusGraphManagement management)

Creates the properties for vertices, edges, and meta-properties.

createCompositeIndexes

protected void createCompositeIndexes(JanusGraphManagement management)

Creates the composite indexes. A composite index is best used for exact match lookups.

createMixedIndexes

protected void createMixedIndexes(JanusGraphManagement management)

Creates the mixed indexes. A mixed index requires that an external indexing backend is configured on the graph instance. A mixed index is best for full text search, numerical range, and geospatial queries.

createSchemaRequest

protected String createSchemaRequest()

Returns a string representation of the schema generation code. This request string is submitted to the Gremlin Server via a client connection to create the schema on the graph instance running on the server.

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception