Package org.janusgraph.core

Interface Summary

Interface	Description
BaseVertexQuery<Q extends BaseVertexQuery<Q>>	BaseVertexQuery constructs and executes a query over incident edges or properties from the perspective of a vertex.
EdgeLabel	EdgeLabel is an extension of RelationType for edges.
Idfiable	Represents an entity that can be uniquely identified by a long id.
JanusGraph	JanusGraph graph database implementation of the Blueprint's interface.
JanusGraphComputer
JanusGraphEdge	A JanusGraphEdge connects two JanusGraphVertex.
JanusGraphElement	JanusGraphElement represents the abstract concept of an entity in the graph and specifies basic methods for interacting with entities.
JanusGraphIndexQuery	A GraphQuery that queries for graph elements directly against a particular indexing backend and hence allows this query mechanism to exploit the full range of features and functionality of the indexing backend.
JanusGraphIndexQuery.Result<V extends org.apache.tinkerpop.gremlin.structure.Element>	Container of a query result with its score.
JanusGraphMultiVertexQuery<Q extends JanusGraphMultiVertexQuery<Q>>	A MultiVertexQuery is identical to a JanusGraphVertexQuery but executed against a set of vertices simultaneously.
JanusGraphProperty<V>
JanusGraphQuery<Q extends JanusGraphQuery<Q>>	Constructs a query against a mixed index to retrieve all elements (either vertices or edges) that match all conditions.
JanusGraphRelation	JanusGraphRelation is the most abstract form of a relation between a vertex and some other entity, where relation is understood in its mathematical sense.
JanusGraphTransaction	JanusGraphTransaction defines a transactional context for a JanusGraph.
JanusGraphVertex	JanusGraphVertex is the basic unit of a JanusGraph.
JanusGraphVertexProperty<V>	JanusGraphProperty is a JanusGraphRelation connecting a vertex to a value.
JanusGraphVertexQuery<Q extends JanusGraphVertexQuery<Q>>	A JanusGraphVertexQuery is a VertexQuery executed for a single vertex.
MixedIndexCountQuery
Namifiable	Represents an entity that can be uniquely identified by a String name.
PropertyKey	PropertyKey is an extension of RelationType for properties.
QueryDescription
QueryDescription.SubQuery	Represents one sub-query of this query.
RelationType	RelationType defines the schema for JanusGraphRelation.
Transaction	Transaction defines a transactional context for a JanusGraph.
TransactionBuilder	Constructor returned by JanusGraph.buildTransaction() to build a new transaction.
VertexLabel	A vertex label is a label attached to vertices in a JanusGraph graph.
VertexList	List of JanusGraphVertexs.

Class Summary

Class	Description
ConfiguredGraphFactory	This class provides static methods to: 1) create graph references denoted by a graphName using a previously created template configuration using the ConfigurationManagementGraph or 2) open a graph reference denoted by a graphName for graphs that have been previously created or for graphs for which you have previously created a configuration using the ConfigurationManagementGraph.
Connection	Connection contains schema constraints from outgoing vertex to incoming vertex through an edge.
EmptyJanusGraphVertexProperty<V>
JanusGraphFactory	JanusGraphFactory is used to open or instantiate a JanusGraph graph database.
JanusGraphFactory.Builder
JanusGraphManagerUtility	This class allows an access point to the JanusGraphManager Singleton without throwing a NoClassDefFoundError if the server has not been configured to use the org.apache.tinkerpop:gremlin-server dependency, since this dependency is optional.

Enum Summary

Enum	Description
Cardinality	The cardinality of the values associated with given key for a particular element.
JanusGraphComputer.ResultMode
Multiplicity	The multiplicity of edges between vertices for a given label.

Exception Summary

Exception	Description
InvalidElementException	Exception thrown when an element is invalid for the executing operation or when an operation could not be performed on an element.
InvalidIDException	JanusGraph represents element identifiers as longs, but not all numbers in the representable space of longs are valid.
JanusGraphConfigurationException	Exception thrown due to invalid configuration options or when errors occur during the configuration and initialization of JanusGraph.
JanusGraphException	Most general type of exception thrown by the JanusGraph graph database.
QueryException	Exception thrown when a user defined query (e.g.
ReadOnlyTransactionException
SchemaViolationException	Thrown to indicate that schema is violated.