Re: how to change graph
They should all be implemented. =) On 4/16/14, 9:32 PM, Akshay Trivedi wrote: Does removeVertexRequest(I vertexId) have to be implemented? Is there any pre-defined class for this? On Wed, Apr 16, 2014 at 8:33 PM, Avery Ching wrote: Yes, this is one of the great things about Giraph (not many other graph computation frameworks allow graph mutation). See the Computation class (i.e.) /** * Sends a request to create a vertex that will be available during the * next superstep. * * @param id Vertex id * @param value Vertex value * @param edges Initial edges */ void addVertexRequest(I id, V value, OutEdges edges) throws IOException; /** * Sends a request to create a vertex that will be available during the * next superstep. * * @param id Vertex id * @param value Vertex value */ void addVertexRequest(I id, V value) throws IOException; /** * Request to remove a vertex from the graph * (applied just prior to the next superstep). * * @param vertexId Id of the vertex to be removed. */ void removeVertexRequest(I vertexId) throws IOException; /** * Request to add an edge of a vertex in the graph * (processed just prior to the next superstep) * * @param sourceVertexId Source vertex id of edge * @param edge Edge to add */ void addEdgeRequest(I sourceVertexId, Edge edge) throws IOException; /** * Request to remove all edges from a given source vertex to a given target * vertex (processed just prior to the next superstep). * * @param sourceVertexId Source vertex id * @param targetVertexId Target vertex id */ void removeEdgesRequest(I sourceVertexId, I targetVertexId) throws IOException; On 4/16/14, 7:23 AM, Akshay Trivedi wrote: Hi, I wanted to do some computation on graph and delete some edges between supersteps. Can this be done using giraph?? I have heard of MutableVertex class but I dont know whether it can be used to delete edges. Also is MutableVertex abstract class and has to be implemented?? Regards, Akshay
Re: how to change graph
Does removeVertexRequest(I vertexId) have to be implemented? Is there any pre-defined class for this? On Wed, Apr 16, 2014 at 8:33 PM, Avery Ching wrote: > Yes, this is one of the great things about Giraph (not many other graph > computation frameworks allow graph mutation). See the Computation class > (i.e.) > > /** >* Sends a request to create a vertex that will be available during the >* next superstep. >* >* @param id Vertex id >* @param value Vertex value >* @param edges Initial edges >*/ > void addVertexRequest(I id, V value, OutEdges edges) throws > IOException; > > /** >* Sends a request to create a vertex that will be available during the >* next superstep. >* >* @param id Vertex id >* @param value Vertex value >*/ > void addVertexRequest(I id, V value) throws IOException; > > /** >* Request to remove a vertex from the graph >* (applied just prior to the next superstep). >* >* @param vertexId Id of the vertex to be removed. >*/ > void removeVertexRequest(I vertexId) throws IOException; > > /** >* Request to add an edge of a vertex in the graph >* (processed just prior to the next superstep) >* >* @param sourceVertexId Source vertex id of edge >* @param edge Edge to add >*/ > void addEdgeRequest(I sourceVertexId, Edge edge) throws IOException; > > /** >* Request to remove all edges from a given source vertex to a given > target >* vertex (processed just prior to the next superstep). >* >* @param sourceVertexId Source vertex id >* @param targetVertexId Target vertex id >*/ > void removeEdgesRequest(I sourceVertexId, I targetVertexId) > throws IOException; > > > > On 4/16/14, 7:23 AM, Akshay Trivedi wrote: >> >> Hi, >> I wanted to do some computation on graph and delete some edges between >> supersteps. Can this be done using giraph?? I have heard of >> MutableVertex class but I dont know whether it can be used to delete >> edges. Also is MutableVertex abstract class and has to be >> implemented?? >> >> Regards, >> Akshay > >
Re: how to change graph
Yes, this is one of the great things about Giraph (not many other graph computation frameworks allow graph mutation). See the Computation class (i.e.) /** * Sends a request to create a vertex that will be available during the * next superstep. * * @param id Vertex id * @param value Vertex value * @param edges Initial edges */ void addVertexRequest(I id, V value, OutEdges edges) throws IOException; /** * Sends a request to create a vertex that will be available during the * next superstep. * * @param id Vertex id * @param value Vertex value */ void addVertexRequest(I id, V value) throws IOException; /** * Request to remove a vertex from the graph * (applied just prior to the next superstep). * * @param vertexId Id of the vertex to be removed. */ void removeVertexRequest(I vertexId) throws IOException; /** * Request to add an edge of a vertex in the graph * (processed just prior to the next superstep) * * @param sourceVertexId Source vertex id of edge * @param edge Edge to add */ void addEdgeRequest(I sourceVertexId, Edge edge) throws IOException; /** * Request to remove all edges from a given source vertex to a given target * vertex (processed just prior to the next superstep). * * @param sourceVertexId Source vertex id * @param targetVertexId Target vertex id */ void removeEdgesRequest(I sourceVertexId, I targetVertexId) throws IOException; On 4/16/14, 7:23 AM, Akshay Trivedi wrote: Hi, I wanted to do some computation on graph and delete some edges between supersteps. Can this be done using giraph?? I have heard of MutableVertex class but I dont know whether it can be used to delete edges. Also is MutableVertex abstract class and has to be implemented?? Regards, Akshay
how to change graph
Hi, I wanted to do some computation on graph and delete some edges between supersteps. Can this be done using giraph?? I have heard of MutableVertex class but I dont know whether it can be used to delete edges. Also is MutableVertex abstract class and has to be implemented?? Regards, Akshay
