public void onMatch()

in src/main/java/net/hydromatic/optiq/impl/csv/CsvPushProjectOntoTableRule.java [45:59]

• 14 lines of code
• 2 McCabe index (conditional complexity)

  public void onMatch(RelOptRuleCall call) {
    final ProjectRel project = call.rel(0);
    final CsvTableScan scan = call.rel(1);
    int[] fields = getProjectFields(project.getProjects());
    if (fields == null) {
      // Project contains expressions more complex than just field references.
      return;
    }
    call.transformTo(
        new CsvTableScan(
            scan.getCluster(),
            scan.getTable(),
            scan.csvTable,
            fields));
  }