com.thinkaurelius.titan.hadoop.formats

Class VertexQueryFilter

java.lang.Object

com.tinkerpop.blueprints.util.DefaultQuery

com.tinkerpop.blueprints.util.DefaultVertexQuery

com.thinkaurelius.titan.hadoop.formats.VertexQueryFilter

All Implemented Interfaces:

com.tinkerpop.blueprints.Query, com.tinkerpop.blueprints.VertexQuery

public class VertexQueryFilter
extends com.tinkerpop.blueprints.util.DefaultVertexQuery

A filtering mechanism for, if possible, only getting particular aspects of a vertex from the graph. A minimum, the filtering is done on the Hadoop side of the computation. Makes use of VertexQuery from Blueprints to express such constraints.

Author:

Marko A. Rodriguez (marko@thinkaurelius.com), Matthias Broecheler (me@matthiasb.com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	VertexQueryFilter.DummyVertex

Nested classes/interfaces inherited from class com.tinkerpop.blueprints.util.DefaultQuery

com.tinkerpop.blueprints.util.DefaultQuery.HasContainer

Nested classes/interfaces inherited from interface com.tinkerpop.blueprints.Query

com.tinkerpop.blueprints.Query.Compare

Field Summary

Fields inherited from class com.tinkerpop.blueprints.util.DefaultVertexQuery

vertex

Fields inherited from class com.tinkerpop.blueprints.util.DefaultQuery

direction, hasContainers, labels, limit

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	VertexQueryFilter()

Method Summary

Modifier and Type	Method and Description
long	count()
static VertexQueryFilter	create(org.apache.hadoop.conf.Configuration configuration)
void	defaultFilter(FaunusVertex vertex)
boolean	doesFilter()
Iterable<com.tinkerpop.blueprints.Edge>	edges()
protected void	setDoesFilter(boolean doesFilter)
Object	vertexIds()
Iterable<com.tinkerpop.blueprints.Vertex>	vertices()

Methods inherited from class com.tinkerpop.blueprints.util.DefaultVertexQuery

direction, has, has, has, has, hasNot, hasNot, interval, labels, limit

Methods inherited from class java.lang.Object

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

Constructor Detail

VertexQueryFilter

protected VertexQueryFilter()

Method Detail

create

public static VertexQueryFilter create(org.apache.hadoop.conf.Configuration configuration)

setDoesFilter

protected void setDoesFilter(boolean doesFilter)

doesFilter

public boolean doesFilter()

edges

public Iterable<com.tinkerpop.blueprints.Edge> edges()

Specified by:

edges in interface com.tinkerpop.blueprints.Query

Overrides:

edges in class com.tinkerpop.blueprints.util.DefaultVertexQuery

vertices

public Iterable<com.tinkerpop.blueprints.Vertex> vertices()

Specified by:

vertices in interface com.tinkerpop.blueprints.Query

Overrides:

vertices in class com.tinkerpop.blueprints.util.DefaultVertexQuery

vertexIds

public Object vertexIds()

Specified by:

vertexIds in interface com.tinkerpop.blueprints.VertexQuery

Overrides:

vertexIds in class com.tinkerpop.blueprints.util.DefaultVertexQuery

count

public long count()

Specified by:

count in interface com.tinkerpop.blueprints.VertexQuery

Overrides:

count in class com.tinkerpop.blueprints.util.DefaultVertexQuery

defaultFilter

public void defaultFilter(FaunusVertex vertex)