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 <ach...@apache.org> 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<I, E> 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<I, E> 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 > >
