org.janusgraph.core

Interface VertexLabel

All Superinterfaces:

org.apache.tinkerpop.gremlin.structure.Element, org.apache.tinkerpop.gremlin.structure.util.Host, Idfiable, JanusGraphElement, JanusGraphSchemaElement, JanusGraphSchemaType, JanusGraphVertex, Namifiable, Removable, org.apache.tinkerpop.gremlin.structure.Vertex

All Known Subinterfaces:

InternalVertexLabel

All Known Implementing Classes:

BaseVertexLabel, VertexLabelVertex

public interface VertexLabel
extends JanusGraphVertex, JanusGraphSchemaType

A vertex label is a label attached to vertices in a JanusGraph graph. This can be used to define the nature of a vertex.

Internally, a vertex label is also used to specify certain characteristics of vertices that have a given label.

Author:

Matthias Broecheler ([email protected])

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

org.apache.tinkerpop.gremlin.structure.Vertex.Exceptions

Field Summary

Fields inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

DEFAULT_LABEL, EMPTY_ARGS

Method Summary

Modifier and Type	Method and Description
boolean	isPartitioned() Whether vertices with this label are partitioned.
boolean	isStatic() Whether vertices with this label are static, that is, immutable beyond the transaction in which they were created.
Collection<Connection>	mappedConnections() Collects all connection constraints.
Collection<PropertyKey>	mappedProperties() Collects all property constraints.

Methods inherited from interface org.janusgraph.core.JanusGraphVertex

addEdge, isModified, label, property, property, property, query, vertexLabel

Methods inherited from interface org.janusgraph.core.JanusGraphElement

graph, hasId, id, isLoaded, isNew, isRemoved, longId, remove, valueOrNull

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

edges, properties, property, vertices

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Element

keys, value, values

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.util.Host

getHostingVertex

Methods inherited from interface org.janusgraph.core.schema.JanusGraphSchemaType

isNew

Methods inherited from interface org.janusgraph.core.Namifiable

name

Method Detail

isPartitioned

boolean isPartitioned()

Whether vertices with this label are partitioned.

Returns:

isStatic

boolean isStatic()

Whether vertices with this label are static, that is, immutable beyond the transaction in which they were created.

Returns:

mappedProperties

Collection<PropertyKey> mappedProperties()

Collects all property constraints.

Returns:

a list of PropertyKey which represents all property constraints for a VertexLabel.

mappedConnections

Collection<Connection> mappedConnections()

Collects all connection constraints.

Returns:

a list of Connection which represents all connection constraints for a VertexLabel.