com.thinkaurelius.titan.graphdb.query.graph

Class GraphCentricQueryBuilder

java.lang.Object

com.thinkaurelius.titan.graphdb.query.graph.GraphCentricQueryBuilder

All Implemented Interfaces:

TitanGraphQuery<GraphCentricQueryBuilder>

public class GraphCentricQueryBuilder
extends Object
implements TitanGraphQuery<GraphCentricQueryBuilder>

Builds a TitanGraphQuery, optimizes the query and compiles the result into a GraphCentricQuery which is then executed through a QueryProcessor.

Author:

Matthias Broecheler (me@matthiasb.com)

Constructor Summary

Constructors

Constructor and Description
GraphCentricQueryBuilder(StandardTitanTx tx, IndexSerializer serializer)

Method Summary

Modifier and Type	Method and Description
GraphCentricQuery	constructQuery(ElementCategory resultType)
GraphCentricQuery	constructQueryWithoutProfile(ElementCategory resultType)
Iterable<TitanEdge>	edges() Returns all edges that match the conditions.
GraphCentricQueryBuilder	has(PropertyKey key, TitanPredicate predicate, Object condition)
GraphCentricQueryBuilder	has(String key)
GraphCentricQueryBuilder	has(String key, Object value)
GraphCentricQueryBuilder	has(String key, TitanPredicate predicate, Object condition) The returned element must have a property for the given key that matches the condition according to the specified relation
GraphCentricQueryBuilder	hasNot(String key)
GraphCentricQueryBuilder	hasNot(String key, Object value)
static List<Object[]>	indexCover(CompositeIndexType index, Condition<TitanElement> condition, Set<Condition> covered)
static Condition<TitanElement>	indexCover(MixedIndexType index, Condition<TitanElement> condition, IndexSerializer indexInfo, Set<Condition> covered)
static boolean	indexCoversOrder(MixedIndexType index, OrderList orders)
<T extends Comparable<?>> GraphCentricQueryBuilder	interval(String s, T t1, T t2)
GraphCentricQueryBuilder	limit(int limit) Limits the size of the returned result set
GraphCentricQueryBuilder	orderBy(String keyName, org.apache.tinkerpop.gremlin.process.traversal.Order order) Orders the element results of this query according to their property for the given key in the given order (increasing/decreasing).
GraphCentricQueryBuilder	profiler(QueryProfiler profiler)
Iterable<TitanVertexProperty>	properties() Returns all properties that match the conditions
Iterable<TitanVertex>	vertices() Returns all vertices that match the conditions.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphCentricQueryBuilder

public GraphCentricQueryBuilder(StandardTitanTx tx,
                                IndexSerializer serializer)

Method Detail

profiler

public GraphCentricQueryBuilder profiler(QueryProfiler profiler)

has

public GraphCentricQueryBuilder has(String key,
                                    TitanPredicate predicate,
                                    Object condition)

Description copied from interface: TitanGraphQuery

The returned element must have a property for the given key that matches the condition according to the specified relation

Specified by:

has in interface TitanGraphQuery<GraphCentricQueryBuilder>

Parameters:

key - Key that identifies the property

predicate - Relation between property and condition

Returns:

This query

has

public GraphCentricQueryBuilder has(PropertyKey key,
                                    TitanPredicate predicate,
                                    Object condition)

has

public GraphCentricQueryBuilder has(String key)

Specified by:

has in interface TitanGraphQuery<GraphCentricQueryBuilder>

hasNot

public GraphCentricQueryBuilder hasNot(String key)

Specified by:

hasNot in interface TitanGraphQuery<GraphCentricQueryBuilder>

has

public GraphCentricQueryBuilder has(String key,
                                    Object value)

Specified by:

has in interface TitanGraphQuery<GraphCentricQueryBuilder>

hasNot

public GraphCentricQueryBuilder hasNot(String key,
                                       Object value)

Specified by:

hasNot in interface TitanGraphQuery<GraphCentricQueryBuilder>

interval

public <T extends Comparable<?>> GraphCentricQueryBuilder interval(String s,
                                                                   T t1,
                                                                   T t2)

Specified by:

interval in interface TitanGraphQuery<GraphCentricQueryBuilder>

limit

public GraphCentricQueryBuilder limit(int limit)

Description copied from interface: TitanGraphQuery

Limits the size of the returned result set

Specified by:

limit in interface TitanGraphQuery<GraphCentricQueryBuilder>

Parameters:

limit - The maximum number of results to return

Returns:

This query

orderBy

public GraphCentricQueryBuilder orderBy(String keyName,
                                        org.apache.tinkerpop.gremlin.process.traversal.Order order)

Description copied from interface: TitanGraphQuery

Orders the element results of this query according to their property for the given key in the given order (increasing/decreasing).

Specified by:

orderBy in interface TitanGraphQuery<GraphCentricQueryBuilder>

Parameters:

keyName - The key of the properties on which to order

order - the ordering direction

Returns:

vertices

public Iterable<TitanVertex> vertices()

Description copied from interface: TitanGraphQuery

Returns all vertices that match the conditions.

Specified by:

vertices in interface TitanGraphQuery<GraphCentricQueryBuilder>

Returns:

edges

public Iterable<TitanEdge> edges()

Description copied from interface: TitanGraphQuery

Returns all edges that match the conditions.

Specified by:

edges in interface TitanGraphQuery<GraphCentricQueryBuilder>

Returns:

properties

public Iterable<TitanVertexProperty> properties()

Description copied from interface: TitanGraphQuery

Returns all properties that match the conditions

Specified by:

properties in interface TitanGraphQuery<GraphCentricQueryBuilder>

Returns:

constructQuery

public GraphCentricQuery constructQuery(ElementCategory resultType)

constructQueryWithoutProfile

public GraphCentricQuery constructQueryWithoutProfile(ElementCategory resultType)

indexCoversOrder

public static final boolean indexCoversOrder(MixedIndexType index,
                                             OrderList orders)

indexCover

public static List<Object[]> indexCover(CompositeIndexType index,
                                        Condition<TitanElement> condition,
                                        Set<Condition> covered)

indexCover

public static final Condition<TitanElement> indexCover(MixedIndexType index,
                                                       Condition<TitanElement> condition,
                                                       IndexSerializer indexInfo,
                                                       Set<Condition> covered)