Examples of com.tinkerpop.gremlin.process.computer.VertexProgram.execute()

com.tinkerpop.gremlin.process.computer.VertexProgram.execute()

This method denotes the main body of the computation and is executed on each vertex in the graph. This method is logically executed in parallel on all vertices in the graph. When the {@link Memory} is read, it is according to the aggregated state yielded in the previous iteration.When the {@link Memory} is written, the data will be aggregated at the end of the iteration for reading in the next iteration. @param vertex the {@link Vertex} to execute the {@link VertexProgram} on @param messenger the messenger that moves data between vertices @param memory the shared state between all vertices in the computation

        final VertexProgram vertexProgram = ((GiraphWorkerContext) this.getWorkerContext()).getVertexProgram();
        final GiraphMemory memory = ((GiraphWorkerContext) this.getWorkerContext()).getMemory();
        final GiraphMessenger messenger = ((GiraphWorkerContext) this.getWorkerContext()).getMessenger(this, messages);
        ///////////
        if (!(Boolean) ((RuleWritable) this.getAggregatedValue(Constants.GREMLIN_GIRAPH_HALT)).getObject())
            vertexProgram.execute(this.tinkerVertex, messenger, memory);  // TODO provide a wrapper around TinkerVertex for Edge and non-ComputeKeys manipulation
        else if (this.getConf().getBoolean(Constants.GREMLIN_GIRAPH_DERIVE_MEMORY, false)) {
            final Map<String, Object> memoryMap = new HashMap<>(memory.asMap());
            memoryMap.put(Constants.SYSTEM_ITERATION, memory.getIteration() - 1);
            this.tinkerVertex.singleProperty(Constants.MEMORY_MAP, memoryMap);
        }

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