Examples of com.facebook.presto.HashPagePartitionFunction

            checkArgument(noMoreParentNodes, "Hash partitioned output requires all parent nodes be added in a single call");


            ImmutableMap.Builder<TaskId, PagePartitionFunction> buffers = ImmutableMap.builder();
            for (int nodeIndex = 0; nodeIndex < parentTasks.size(); nodeIndex++) {
                TaskId taskId = parentTasks.get(nodeIndex);
                buffers.put(taskId, new HashPagePartitionFunction(nodeIndex, parentTasks.size(), fragment.getPartitioningChannels(), fragment.getTypes()));
            }


            newOutputBuffers = startingOutputBuffers
                    .withBuffers(buffers.build())
                    .withNoMoreBufferIds();

            checkArgument(noMoreParentNodes, "Hash partitioned output requires all parent nodes be added in a single call");


            ImmutableMap.Builder<String, PagePartitionFunction> buffers = ImmutableMap.builder();
            for (int nodeIndex = 0; nodeIndex < parentNodes.size(); nodeIndex++) {
                Node node = parentNodes.get(nodeIndex);
                buffers.put(node.getNodeIdentifier(), new HashPagePartitionFunction(nodeIndex, parentNodes.size(), fragment.getPartitioningChannels()));
            }


            newOutputBuffers = startingOutputBuffers
                    .withBuffers(buffers.build())
                    .withNoMoreBufferIds();

Related Classes of com.facebook.presto.HashPagePartitionFunction

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