com.thinkaurelius.titan.graphdb.internal

Interface InternalVertex

All Superinterfaces:

Comparable<TitanElement>, com.tinkerpop.blueprints.Element, Idfiable, InternalElement, Removable, TitanElement, TitanVertex, com.tinkerpop.blueprints.Vertex

All Known Subinterfaces:

InternalRelationType, SystemRelationType

All Known Implementing Classes:

AbstractVertex, BaseKey, BaseLabel, BaseRelationType, BaseVertexLabel, CacheVertex, EdgeLabelVertex, EmptyRelationType, EmptyVertex, FulgoraNeighborVertex, FulgoraVertex, ImplicitKey, PropertyKeyVertex, RelationTypeVertex, StandardVertex, TitanSchemaVertex, VertexLabelVertex

public interface InternalVertex
extends TitanVertex, InternalElement

Internal Vertex interface adding methods that should only be used by Titan

Author:

Matthias Broecheler (me@matthiasb.com)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addRelation(InternalRelation e) Add a new relation to the vertex
List<InternalRelation>	getAddedRelations(com.google.common.base.Predicate<InternalRelation> query) Returns an iterable over all newly added relations incident on this vertex that match the given predicate
boolean	hasAddedRelations() Whether this vertex has added relations
boolean	hasLoadedRelations(SliceQuery query) Returns true if the results for the given query have already been loaded for this vertex and are locally cached.
boolean	hasRemovedRelations() Whether this vertex has removed relations
InternalVertex	it() Returns this element in the context of the current transaction.
EntryList	loadRelations(SliceQuery query, Retriever<SliceQuery,EntryList> lookup) Returns all relations that match the given query.
VertexCentricQueryBuilder	query() Starts a new TitanVertexQuery for this vertex.
void	removeRelation(InternalRelation e) Deleted relation e from the adjacency list of this vertex and updates the state of the vertex to reflect the modification.

Methods inherited from interface com.thinkaurelius.titan.core.TitanVertex

addEdge, addEdge, addProperty, addProperty, getEdgeCount, getEdges, getEdges, getLabel, getProperties, getProperties, getProperties, getPropertyCount, getRelations, getTitanEdges, getVertexLabel, isConnected, isModified

Methods inherited from interface com.tinkerpop.blueprints.Vertex

addEdge, getVertices

Methods inherited from interface com.thinkaurelius.titan.graphdb.internal.InternalElement

getLifeCycle, isHidden, setID, tx

Methods inherited from interface com.thinkaurelius.titan.core.TitanElement

getId, getID, getProperty, getProperty, hasId, isLoaded, isNew, isRemoved, remove, removeProperty, removeProperty, setProperty, setProperty

Methods inherited from interface com.tinkerpop.blueprints.Element

getPropertyKeys

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

it

InternalVertex it()

Description copied from interface: InternalElement

Returns this element in the context of the current transaction.

Specified by:

it in interface InternalElement

Returns:

removeRelation

void removeRelation(InternalRelation e)

Deleted relation e from the adjacency list of this vertex and updates the state of the vertex to reflect the modification. Note that this method tolerates the prior removal of the vertex and hence does not throw an exception if the relation could not actually be removed from the adjacency list. This behavior was chosen to allow relation deletion while iterating over the list of adjacent relations, in which case the relation deletion is taken care of by the iterator and only vertex status update needs to be executed.

Parameters:

e - TitanRelation to be removed

addRelation

boolean addRelation(InternalRelation e)

Add a new relation to the vertex

Parameters:

e -

Returns:

getAddedRelations

List<InternalRelation> getAddedRelations(com.google.common.base.Predicate<InternalRelation> query)

Returns an iterable over all newly added relations incident on this vertex that match the given predicate

Parameters:

query -

Returns:

loadRelations

EntryList loadRelations(SliceQuery query,
                      Retriever<SliceQuery,EntryList> lookup)

Returns all relations that match the given query. If these matching relations are not currently held in memory, it uses the given Retriever to retrieve the edges from backend storage.

Parameters:

query -

lookup -

Returns:

hasLoadedRelations

boolean hasLoadedRelations(SliceQuery query)

Returns true if the results for the given query have already been loaded for this vertex and are locally cached.

Parameters:

query -

Returns:

hasRemovedRelations

boolean hasRemovedRelations()

Whether this vertex has removed relations

Returns:

hasAddedRelations

boolean hasAddedRelations()

Whether this vertex has added relations

Returns:

query

VertexCentricQueryBuilder query()

Description copied from interface: TitanVertex

Starts a new TitanVertexQuery for this vertex.

Initializes and returns a new TitanVertexQuery based on this vertex.

Specified by:

query in interface TitanVertex

Specified by:

query in interface com.tinkerpop.blueprints.Vertex

Returns:

New TitanQuery for this vertex

See Also:

TitanVertexQuery