Examples with EvaluationFilter org.apache.storm.sql.runtime.trident.functions.EvaluationFilter used on opensource projects

Example 1 with EvaluationFilter

use of org.apache.storm.sql.runtime.trident.functions.EvaluationFilter in project storm by apache.

the class TridentFilterRel method tridentPlan.

@Override
public void tridentPlan(TridentPlanCreator planCreator) throws Exception {
    // SingleRel
    RelNode input = getInput();
    StormRelUtils.getStormRelInput(input).tridentPlan(planCreator);
    Stream inputStream = planCreator.pop().toStream();
    String stageName = StormRelUtils.getStageName(this);
    List<RexNode> childExps = getChildExps();
    RelDataType inputRowType = getInput(0).getRowType();
    String filterClassName = StormRelUtils.getClassName(this);
    ExecutableExpression filterInstance = planCreator.createScalarInstance(childExps, inputRowType, filterClassName);
    IAggregatableStream finalStream = inputStream.filter(new EvaluationFilter(filterInstance, planCreator.getDataContext())).name(stageName);
    planCreator.addStream(finalStream);
}