Examples with Context org.apache.calcite.interpreter.Context used on opensource projects

Example 1 with Context

use of org.apache.calcite.interpreter.Context in project storm by apache.

the class EvaluationFilter method isKeep.

@Override
public boolean isKeep(TridentTuple tuple) {
    Context calciteContext = new StormContext(dataContext);
    calciteContext.values = tuple.getValues().toArray();
    filterInstance.execute(calciteContext, outputValues);
    return (outputValues[0] != null && (boolean) outputValues[0]);
}

Example 2 with Context

use of org.apache.calcite.interpreter.Context in project storm by apache.

the class EvaluationFunction method execute.

@Override
public Values execute(TridentTuple input) {
    Context calciteContext = new StormContext(dataContext);
    calciteContext.values = input.getValues().toArray();
    projectionInstance.execute(calciteContext, outputValues);
    return new Values(outputValues);
}

Example 3 with Context

use of org.apache.calcite.interpreter.Context in project storm by apache.

the class EvaluationCalc method execute.

@Override
public Iterable<Values> execute(TridentTuple input) {
    Context calciteContext = new StormContext(dataContext);
    calciteContext.values = input.getValues().toArray();
    if (filterInstance != null) {
        filterInstance.execute(calciteContext, outputValues);
        // filtered out
        if (outputValues[0] == null || !((Boolean) outputValues[0])) {
            return Collections.emptyList();
        }
    }
    if (projectionInstance != null) {
        projectionInstance.execute(calciteContext, outputValues);
        return Collections.singletonList(new Values(outputValues));
    } else {
        return Collections.singletonList(new Values(input.getValues()));
    }
}