TitanMultiVertexQuery (Titan 1.0.0 API)

All Superinterfaces:

BaseVertexQuery<Q>

All Known Implementing Classes:

MultiVertexCentricQueryBuilder
```
public interface TitanMultiVertexQuery<Q extends TitanMultiVertexQuery<Q>>
extends BaseVertexQuery<Q>
```
A MultiVertexQuery is identical to a TitanVertexQuery but executed against a set of vertices simultaneously. In other words, TitanMultiVertexQuery allows identical TitanVertexQuery executed against a non-trivial set of vertices to be executed in one batch which can significantly reduce the query latency.
The query specification methods are identical to TitanVertexQuery. The result set method return Maps from the specified set of anchor vertices to their respective individual result sets.
Call TitanGraphTransaction.multiQuery(java.util.Collection) to construct a multi query in the enclosing transaction.
Note, that the limit(int) constraint applies to each individual result set.

Author:

Matthias Broecheler (me@matthiasb.com)

See Also:

TitanVertexQuery

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`TitanMultiVertexQuery`	`addAllVertices(Collection<? extends org.apache.tinkerpop.gremlin.structure.Vertex> vertices)` Adds the given collection of vertices to the set of vertices against which to execute this query.
`TitanMultiVertexQuery`	`addVertex(org.apache.tinkerpop.gremlin.structure.Vertex vertex)` Adds the given vertex to the set of vertices against which to execute this query.
`Q`	`adjacent(org.apache.tinkerpop.gremlin.structure.Vertex vertex)` Restricts this query to only those edges that point to the given vertex.
`Q`	`direction(org.apache.tinkerpop.gremlin.structure.Direction d)` Query only for relations in the given direction.
`Map<TitanVertex,Iterable<TitanEdge>>`	`edges()` Returns an iterable over all incident edges that match this query for each vertex
`Q`	`has(String key)` Query for edges or properties that have defined property with the given key
`Q`	`has(String type, Object value)` Query only for edges or properties that have an incident property or unidirected edge matching the given value.
`Q`	`has(String key, TitanPredicate predicate, Object value)`
`Q`	`hasNot(String key)` Query for edges or properties that DO NOT have a defined property with the given key
`Q`	`hasNot(String key, Object value)` Identical to `BaseVertexQuery.has(String, Object)` but negates the condition, i.e.
`<T extends Comparable<?>> Q`	`interval(String key, T start, T end)` Query for those edges or properties that have a property for the given key whose values lies in the interval by [start,end).
`Q`	`keys(String... keys)` Query for only those properties having one of the given property keys.
`Q`	`labels(String... labels)` Query for only those edges matching one of the given edge labels.
`Q`	`limit(int limit)` Sets the retrieval limit for this query.
`Q`	`orderBy(String key, org.apache.tinkerpop.gremlin.process.traversal.Order order)` Orders the relation results of this query according to their property for the given key in the given order (increasing/decreasing).
`Map<TitanVertex,Iterable<TitanVertexProperty>>`	`properties()` Returns an iterable over all incident properties that match this query for each vertex
`Map<TitanVertex,Iterable<TitanRelation>>`	`relations()` Returns an iterable over all incident relations that match this query for each vertex
`Q`	`types(RelationType... type)` Query for only those relations matching one of the given relation types.
`Q`	`types(String... type)` Query for only those relations matching one of the given relation types.
`Map<TitanVertex,VertexList>`	`vertexIds()` Retrieves all vertices connected to each of the query's central vertices by edges matching the conditions defined in this query.
`Map<TitanVertex,Iterable<TitanVertex>>`	`vertices()` Retrieves all vertices connected to each of the query's base vertices by edges matching the conditions defined in this query.

- Method Detail
  - addVertex
```
TitanMultiVertexQuery addVertex(org.apache.tinkerpop.gremlin.structure.Vertex vertex)
```
    Adds the given vertex to the set of vertices against which to execute this query.
    
    Parameters:
    
    vertex -
    
    Returns:
    
    this query builder
  - addAllVertices
```
TitanMultiVertexQuery addAllVertices(Collection<? extends org.apache.tinkerpop.gremlin.structure.Vertex> vertices)
```
    Adds the given collection of vertices to the set of vertices against which to execute this query.
    
    Parameters:
    
    vertices -
    
    Returns:
    
    this query builder
  - adjacent
```
Q adjacent(org.apache.tinkerpop.gremlin.structure.Vertex vertex)
```
    Description copied from interface: BaseVertexQuery
    
    Restricts this query to only those edges that point to the given vertex.
    
    Specified by:
    
    adjacent in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Returns:
    
    this query builder
  - types
```
Q types(String... type)
```
    Description copied from interface: BaseVertexQuery
    
    Query for only those relations matching one of the given relation types. By default, a query includes all relations in the result set.
    
    Specified by:
    
    types in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    type - relation types to query for
    
    Returns:
    
    this query
  - types
```
Q types(RelationType... type)
```
    Description copied from interface: BaseVertexQuery
    
    Query for only those relations matching one of the given relation types. By default, a query includes all relations in the result set.
    
    Specified by:
    
    types in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    type - relation types to query for
    
    Returns:
    
    this query
  - labels
```
Q labels(String... labels)
```
    Description copied from interface: BaseVertexQuery
    
    Query for only those edges matching one of the given edge labels. By default, an edge query includes all edges in the result set.
    
    Specified by:
    
    labels in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    labels - edge labels to query for
    
    Returns:
    
    this query
  - keys
```
Q keys(String... keys)
```
    Description copied from interface: BaseVertexQuery
    
    Query for only those properties having one of the given property keys. By default, a query includes all properties in the result set.
    
    Specified by:
    
    keys in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    keys - property keys to query for
    
    Returns:
    
    this query
  - direction
```
Q direction(org.apache.tinkerpop.gremlin.structure.Direction d)
```
    Description copied from interface: BaseVertexQuery
    
    Query only for relations in the given direction. By default, both directions are queried.
    
    Specified by:
    
    direction in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    d - Direction to query for
    
    Returns:
    
    this query
  - has
```
Q has(String type,
      Object value)
```
    Description copied from interface: BaseVertexQuery
    
    Query only for edges or properties that have an incident property or unidirected edge matching the given value.
    If type is a property key, then the query is restricted to edges or properties having an incident property matching this key-value pair. If type is an edge label, then it is expected that this label is unidirected (EdgeLabel.isUnidirected() and the query is restricted to edges or properties having an incident unidirectional edge pointing to the value which is expected to be a TitanVertex.
    
    Specified by:
    
    has in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    type - TitanType name
    
    value - Value for the property of the given key to match, or vertex to point unidirectional edge to
    
    Returns:
    
    this query
  - has
```
Q has(String key)
```
    Description copied from interface: BaseVertexQuery
    
    Query for edges or properties that have defined property with the given key
    
    Specified by:
    
    has in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Returns:
    
    this query
  - hasNot
```
Q hasNot(String key)
```
    Description copied from interface: BaseVertexQuery
    
    Query for edges or properties that DO NOT have a defined property with the given key
    
    Specified by:
    
    hasNot in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Returns:
    
    this query
  - hasNot
```
Q hasNot(String key,
         Object value)
```
    Description copied from interface: BaseVertexQuery
    
    Identical to BaseVertexQuery.has(String, Object) but negates the condition, i.e. matches those edges or properties that DO NOT satisfy this property condition.
    
    Specified by:
    
    hasNot in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Returns:
  - has
```
Q has(String key,
      TitanPredicate predicate,
      Object value)
```
    Specified by:
    
    has in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
  - interval
```
<T extends Comparable<?>> Q interval(String key,
                                     T start,
                                     T end)
```
    Description copied from interface: BaseVertexQuery
    
    Query for those edges or properties that have a property for the given key whose values lies in the interval by [start,end).
    
    Specified by:
    
    interval in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    key - property key
    
    start - value defining the start of the interval (inclusive)
    
    end - value defining the end of the interval (exclusive)
    
    Returns:
    
    this query
  - limit
```
Q limit(int limit)
```
    Description copied from interface: BaseVertexQuery
    
    Sets the retrieval limit for this query.
    When setting a limit, executing this query will only retrieve the specified number of relations. Note, that this also applies to counts.
    
    Specified by:
    
    limit in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    limit - maximum number of relations to retrieve for this query
    
    Returns:
    
    this query
  - orderBy
```
Q orderBy(String key,
          org.apache.tinkerpop.gremlin.process.traversal.Order order)
```
    Description copied from interface: BaseVertexQuery
    
    Orders the relation results of this query according to their property for the given key in the given order (increasing/decreasing).
    Note, that the ordering always applies to the incident relations (edges/properties) and NOT to the adjacent vertices even if only vertices are being returned.
    
    Specified by:
    
    orderBy in interface BaseVertexQuery<Q extends TitanMultiVertexQuery<Q>>
    
    Parameters:
    
    key - The key of the properties on which to order
    
    order - the ordering direction
    
    Returns:
  - edges
```
Map<TitanVertex,Iterable<TitanEdge>> edges()
```
    Returns an iterable over all incident edges that match this query for each vertex
    
    Returns:
    
    Iterable over all incident edges that match this query for each vertex
  - properties
```
Map<TitanVertex,Iterable<TitanVertexProperty>> properties()
```
    Returns an iterable over all incident properties that match this query for each vertex
    
    Returns:
    
    Iterable over all incident properties that match this query for each vertex
  - relations
```
Map<TitanVertex,Iterable<TitanRelation>> relations()
```
    Returns an iterable over all incident relations that match this query for each vertex
    
    Returns:
    
    Iterable over all incident relations that match this query for each vertex
  - vertices
```
Map<TitanVertex,Iterable<TitanVertex>> vertices()
```
    Retrieves all vertices connected to each of the query's base vertices by edges matching the conditions defined in this query.
    
    Returns:
    
    An iterable of all vertices connected to each of the query's central vertices by matching edges
  - vertexIds
```
Map<TitanVertex,VertexList> vertexIds()
```
    Retrieves all vertices connected to each of the query's central vertices by edges matching the conditions defined in this query.
    The query engine will determine the most efficient way to retrieve the vertices that match this query.
    
    Returns:
    
    A list of all vertices' ids connected to each of the query's central vertex by matching edges

Interface TitanMultiVertexQuery<Q extends TitanMultiVertexQuery<Q>>

Method Summary

Method Detail

addVertex

addAllVertices

adjacent

types

types

labels

keys

direction

has

has

hasNot

hasNot

has

interval

limit

orderBy

edges

properties

relations

vertices

vertexIds