object VertexRDD extends Serializable
The VertexRDD singleton is used to construct VertexRDDs.
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def
apply[VD](vertices: RDD[(VertexId, VD)], edges: EdgeRDD[_], defaultVal: VD, mergeFunc: (VD, VD) ⇒ VD)(implicit arg0: ClassTag[VD]): VertexRDD[VD]
Constructs a
VertexRDD
from an RDD of vertex-attribute pairs.Constructs a
VertexRDD
from an RDD of vertex-attribute pairs. Duplicate vertex entries are merged usingmergeFunc
. The resultingVertexRDD
will be joinable withedges
, and any missing vertices referred to byedges
will be created with the attributedefaultVal
.- VD
the vertex attribute type
- vertices
the collection of vertex-attribute pairs
- edges
the EdgeRDD that these vertices may be joined with
- defaultVal
the vertex attribute to use when creating missing vertices
- mergeFunc
the commutative, associative duplicate vertex attribute merge function
-
def
apply[VD](vertices: RDD[(VertexId, VD)], edges: EdgeRDD[_], defaultVal: VD)(implicit arg0: ClassTag[VD]): VertexRDD[VD]
Constructs a
VertexRDD
from an RDD of vertex-attribute pairs.Constructs a
VertexRDD
from an RDD of vertex-attribute pairs. Duplicate vertex entries are removed arbitrarily. The resultingVertexRDD
will be joinable withedges
, and any missing vertices referred to byedges
will be created with the attributedefaultVal
.- VD
the vertex attribute type
- vertices
the collection of vertex-attribute pairs
- edges
the EdgeRDD that these vertices may be joined with
- defaultVal
the vertex attribute to use when creating missing vertices
-
def
apply[VD](vertices: RDD[(VertexId, VD)])(implicit arg0: ClassTag[VD]): VertexRDD[VD]
Constructs a standalone
VertexRDD
(one that is not set up for efficient joins with an EdgeRDD) from an RDD of vertex-attribute pairs.Constructs a standalone
VertexRDD
(one that is not set up for efficient joins with an EdgeRDD) from an RDD of vertex-attribute pairs. Duplicate entries are removed arbitrarily.- VD
the vertex attribute type
- vertices
the collection of vertex-attribute pairs
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def
fromEdges[VD](edges: EdgeRDD[_], numPartitions: Int, defaultVal: VD)(implicit arg0: ClassTag[VD]): VertexRDD[VD]
Constructs a
VertexRDD
containing all vertices referred to inedges
.Constructs a
VertexRDD
containing all vertices referred to inedges
. The vertices will be created with the attributedefaultVal
. The resultingVertexRDD
will be joinable withedges
.- VD
the vertex attribute type
- edges
the EdgeRDD referring to the vertices to create
- numPartitions
the desired number of partitions for the resulting
VertexRDD
- defaultVal
the vertex attribute to use when creating missing vertices
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