/** * Transforms a {@code SelectTransformation}. * * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names. * * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator */ private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) { StreamTransformation<T> input = select.getInput(); Collection<Integer> resultIds = transform(input); // the recursive transform might have already transformed this if (alreadyTransformed.containsKey(select)) { return alreadyTransformed.get(select); } List<Integer> virtualResultIds = new ArrayList<>(); for (int inputId : resultIds) { int virtualId = StreamTransformation.getNewNodeId(); streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames()); virtualResultIds.add(virtualId); } return virtualResultIds; }
/** * Transforms a {@code SelectTransformation}. * * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names. * * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator */ private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) { StreamTransformation<T> input = select.getInput(); Collection<Integer> resultIds = transform(input); // the recursive transform might have already transformed this if (alreadyTransformed.containsKey(select)) { return alreadyTransformed.get(select); } List<Integer> virtualResultIds = new ArrayList<>(); for (int inputId : resultIds) { int virtualId = StreamTransformation.getNewNodeId(); streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames()); virtualResultIds.add(virtualId); } return virtualResultIds; }
/** * Transforms a {@code SelectTransformation}. * * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names. * * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator */ private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) { StreamTransformation<T> input = select.getInput(); Collection<Integer> resultIds = transform(input); // the recursive transform might have already transformed this if (alreadyTransformed.containsKey(select)) { return alreadyTransformed.get(select); } List<Integer> virtualResultIds = new ArrayList<>(); for (int inputId : resultIds) { int virtualId = StreamTransformation.getNewNodeId(); streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames()); virtualResultIds.add(virtualId); } return virtualResultIds; }
/** * Transforms a {@code SelectTransformation}. * * <p>For this we create a virtual node in the {@code StreamGraph} holds the selected names. * * @see org.apache.flink.streaming.api.graph.StreamGraphGenerator */ private <T> Collection<Integer> transformSelect(SelectTransformation<T> select) { StreamTransformation<T> input = select.getInput(); Collection<Integer> resultIds = transform(input); // the recursive transform might have already transformed this if (alreadyTransformed.containsKey(select)) { return alreadyTransformed.get(select); } List<Integer> virtualResultIds = new ArrayList<>(); for (int inputId : resultIds) { int virtualId = StreamTransformation.getNewNodeId(); streamGraph.addVirtualSelectNode(inputId, virtualId, select.getSelectedNames()); virtualResultIds.add(virtualId); } return virtualResultIds; }