use of org.apache.asterix.runtime.evaluators.functions.AndDescriptor in project asterixdb by apache.
the class SecondaryIndexOperationsHelper method createFilterNullsSelectOp.
public AlgebricksMetaOperatorDescriptor createFilterNullsSelectOp(JobSpecification spec, int numSecondaryKeyFields, RecordDescriptor secondaryRecDesc) throws AlgebricksException {
IScalarEvaluatorFactory[] andArgsEvalFactories = new IScalarEvaluatorFactory[numSecondaryKeyFields];
NotDescriptor notDesc = new NotDescriptor();
IsUnknownDescriptor isUnknownDesc = new IsUnknownDescriptor();
for (int i = 0; i < numSecondaryKeyFields; i++) {
// Access column i, and apply 'is not null'.
ColumnAccessEvalFactory columnAccessEvalFactory = new ColumnAccessEvalFactory(i);
IScalarEvaluatorFactory isUnknownEvalFactory = isUnknownDesc.createEvaluatorFactory(new IScalarEvaluatorFactory[] { columnAccessEvalFactory });
IScalarEvaluatorFactory notEvalFactory = notDesc.createEvaluatorFactory(new IScalarEvaluatorFactory[] { isUnknownEvalFactory });
andArgsEvalFactories[i] = notEvalFactory;
}
IScalarEvaluatorFactory selectCond;
if (numSecondaryKeyFields > 1) {
// Create conjunctive condition where all secondary index keys must
// satisfy 'is not null'.
AndDescriptor andDesc = new AndDescriptor();
selectCond = andDesc.createEvaluatorFactory(andArgsEvalFactories);
} else {
selectCond = andArgsEvalFactories[0];
}
StreamSelectRuntimeFactory select = new StreamSelectRuntimeFactory(selectCond, null, BinaryBooleanInspector.FACTORY, false, -1, null);
AlgebricksMetaOperatorDescriptor asterixSelectOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1, new IPushRuntimeFactory[] { select }, new RecordDescriptor[] { secondaryRecDesc });
AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixSelectOp, primaryPartitionConstraint);
return asterixSelectOp;
}
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