org.janusgraph.graphdb.vertices

Class CacheVertex

java.lang.Object

org.janusgraph.graphdb.internal.AbstractElement

org.janusgraph.graphdb.vertices.AbstractVertex

org.janusgraph.graphdb.vertices.StandardVertex

org.janusgraph.graphdb.vertices.CacheVertex

All Implemented Interfaces:

Comparable<JanusGraphElement>, org.apache.tinkerpop.gremlin.structure.Element, org.apache.tinkerpop.gremlin.structure.util.Host, org.apache.tinkerpop.gremlin.structure.Vertex, Idfiable, JanusGraphElement, JanusGraphVertex, InternalElement, InternalVertex, Removable

Direct Known Subclasses:

JanusGraphSchemaVertex, PreloadedVertex

public class CacheVertex
extends StandardVertex

Author:

Matthias Broecheler (me@matthiasb.com)

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

Modifier and Type	Field and Description
protected Map<SliceQuery,EntryList>	queryCache

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

DEFAULT_LABEL, EMPTY_ARGS

Constructor Summary

Constructors

Constructor and Description
CacheVertex(StandardJanusGraphTx tx, Object id, byte lifecycle)

Method Summary

Modifier and Type	Method and Description
protected void	addToQueryCache(SliceQuery query, EntryList entries)
EntryList	getFromCache(SliceQuery query)
protected int	getQueryCacheSize()
boolean	hasLoadedRelations(SliceQuery query) Returns true if the results for the given query have already been loaded for this vertex and are locally cached.
EntryList	loadRelations(SliceQuery query, Retriever<SliceQuery,EntryList> lookup) Returns all relations that match the given query.
void	refresh()

Methods inherited from class org.janusgraph.graphdb.vertices.StandardVertex

addRelation, findAddedProperty, findPreviousRelation, getAddedRelations, getDuplicatedAddedRelation, getLifeCycle, hasAddedRelations, hasRemovedRelations, properties, remove, remove, removeRelation, updateLifeCycle, vertexLabel

Methods inherited from class org.janusgraph.graphdb.vertices.AbstractVertex

addEdge, edges, getCompareId, getVertexLabelInternal, isModified, isTxOpen, it, label, property, property, query, toString, tx, valueOrNull, verifyAccess, vertices

Methods inherited from class org.janusgraph.graphdb.internal.AbstractElement

clone, compare, compareTo, equals, hashCode, hasId, id, isInvisible, isLoaded, isNew, isRemoved, isTemporaryId, setId

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.janusgraph.core.JanusGraphVertex

property

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

property

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

getHostingVertex

Methods inherited from interface org.janusgraph.graphdb.internal.InternalElement

graph, isInvisible, setId

Methods inherited from interface org.janusgraph.core.JanusGraphElement

hasId, id, isLoaded, isNew, isRemoved

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

keys, value, values

Field Detail

queryCache

protected final Map<SliceQuery,EntryList> queryCache

Constructor Detail

CacheVertex

public CacheVertex(StandardJanusGraphTx tx,
                   Object id,
                   byte lifecycle)

Method Detail

refresh

public void refresh()

getFromCache

public EntryList getFromCache(SliceQuery query)

addToQueryCache

protected void addToQueryCache(SliceQuery query,
                               EntryList entries)

getQueryCacheSize

protected int getQueryCacheSize()

loadRelations

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

Description copied from interface: InternalVertex

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.

Specified by:

loadRelations in interface InternalVertex

Overrides:

loadRelations in class StandardVertex

Returns:

hasLoadedRelations

public boolean hasLoadedRelations(SliceQuery query)

Description copied from interface: InternalVertex

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

Specified by:

hasLoadedRelations in interface InternalVertex

Overrides:

hasLoadedRelations in class StandardVertex

Returns: