Examples with RowTimeSortOperator org.apache.flink.table.runtime.operators.sort.RowTimeSortOperator used on opensource projects

Example 1 with RowTimeSortOperator

use of org.apache.flink.table.runtime.operators.sort.RowTimeSortOperator in project flink by apache.

the class StreamExecTemporalSort method createSortRowTime.

/**
 * Create Sort logic based on row time.
 */
private Transformation<RowData> createSortRowTime(RowType inputType, Transformation<RowData> inputTransform, ExecNodeConfig config) {
    GeneratedRecordComparator rowComparator = null;
    if (sortSpec.getFieldSize() > 1) {
        // skip the first field which is the rowtime field and would be ordered by timer.
        SortSpec specExcludeTime = sortSpec.createSubSortSpec(1);
        rowComparator = ComparatorCodeGenerator.gen(config.getTableConfig(), "RowTimeSortComparator", inputType, specExcludeTime);
    }
    RowTimeSortOperator sortOperator = new RowTimeSortOperator(InternalTypeInfo.of(inputType), sortSpec.getFieldSpec(0).getFieldIndex(), rowComparator);
    OneInputTransformation<RowData, RowData> transform = ExecNodeUtil.createOneInputTransformation(inputTransform, createTransformationMeta(TEMPORAL_SORT_TRANSFORMATION, config), sortOperator, InternalTypeInfo.of(inputType), inputTransform.getParallelism());
    if (inputsContainSingleton()) {
        transform.setParallelism(1);
        transform.setMaxParallelism(1);
    }
    EmptyRowDataKeySelector selector = EmptyRowDataKeySelector.INSTANCE;
    transform.setStateKeySelector(selector);
    transform.setStateKeyType(selector.getProducedType());
    return transform;
}