Examples with IVisitablePointable org.apache.asterix.om.pointables.base.IVisitablePointable used on opensource projects

Example 6 with IVisitablePointable

use of org.apache.asterix.om.pointables.base.IVisitablePointable in project asterixdb by apache.

the class DeepEqualityDescriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    final IScalarEvaluatorFactory evalFactoryLeft = args[0];
    final IScalarEvaluatorFactory evalFactoryRight = args[1];
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @SuppressWarnings("unchecked")
        private final ISerializerDeserializer<ABoolean> boolSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ABOOLEAN);

        @Override
        public IScalarEvaluator createScalarEvaluator(IHyracksTaskContext ctx) throws HyracksDataException {
            final ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();
            final DataOutput out = resultStorage.getDataOutput();
            final IScalarEvaluator evalLeft = evalFactoryLeft.createScalarEvaluator(ctx);
            final IScalarEvaluator evalRight = evalFactoryRight.createScalarEvaluator(ctx);
            return new IScalarEvaluator() {

                private final DeepEqualAssessor deepEqualAssessor = new DeepEqualAssessor();

                private final PointableAllocator allocator = new PointableAllocator();

                private final IVisitablePointable pointableLeft = allocator.allocateFieldValue(inputTypeLeft);

                private final IVisitablePointable pointableRight = allocator.allocateFieldValue(inputTypeRight);

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    try {
                        evalLeft.evaluate(tuple, pointableLeft);
                        evalRight.evaluate(tuple, pointableRight);
                        // Using deep equality assessment to assess the equality of the two values
                        boolean isEqual = deepEqualAssessor.isEqual(pointableLeft, pointableRight);
                        ABoolean resultBit = isEqual ? ABoolean.TRUE : ABoolean.FALSE;
                        resultStorage.reset();
                        boolSerde.serialize(resultBit, out);
                        result.set(resultStorage);
                    } catch (Exception ioe) {
                        throw new HyracksDataException(ioe);
                    }
                }
            };
        }
    };
}

Example 7 with IVisitablePointable

use of org.apache.asterix.om.pointables.base.IVisitablePointable in project asterixdb by apache.

the class AUnorderedlistPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final PointableAllocator allocator = new PointableAllocator();
    final IAType inputType = unorderedlistType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.MULTISET) : unorderedlistType;
    final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
    final APrintVisitor printVisitor = new APrintVisitor();
    final Pair<PrintStream, ATypeTag> arg = new Pair<>(null, null);
    return new IPrinter() {

        @Override
        public void init() {
            arg.second = inputType.getTypeTag();
        }

        @Override
        public void print(byte[] b, int start, int l, PrintStream ps) throws HyracksDataException {
            listAccessor.set(b, start, l);
            arg.first = ps;
            listAccessor.accept(printVisitor, arg);
        }
    };
}

Example 8 with IVisitablePointable

use of org.apache.asterix.om.pointables.base.IVisitablePointable in project asterixdb by apache.

the class ARecordPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final PointableAllocator allocator = new PointableAllocator();
    final IAType inputType = recType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.OBJECT) : recType;
    final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
    final APrintVisitor printVisitor = new APrintVisitor();
    final Pair<PrintStream, ATypeTag> arg = new Pair<>(null, null);
    return new IPrinter() {

        @Override
        public void init() {
            arg.second = inputType.getTypeTag();
        }

        @Override
        public void print(byte[] b, int start, int l, PrintStream ps) throws HyracksDataException {
            recAccessor.set(b, start, l);
            arg.first = ps;
            recAccessor.accept(printVisitor, arg);
        }
    };
}

Example 9 with IVisitablePointable

use of org.apache.asterix.om.pointables.base.IVisitablePointable in project asterixdb by apache.

the class AOrderedlistPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    PointableAllocator allocator = new PointableAllocator();
    final IAType inputType = orderedlistType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.ARRAY) : orderedlistType;
    final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
    final APrintVisitor printVisitor = new APrintVisitor();
    final Pair<PrintStream, ATypeTag> arg = new Pair<>(null, null);
    return new IPrinter() {

        @Override
        public void init() {
            arg.second = inputType.getTypeTag();
        }

        @Override
        public void print(byte[] b, int start, int l, PrintStream ps) throws HyracksDataException {
            listAccessor.set(b, start, l);
            arg.first = ps;
            listAccessor.accept(printVisitor, arg);
        }
    };
}

Example 10 with IVisitablePointable

use of org.apache.asterix.om.pointables.base.IVisitablePointable in project asterixdb by apache.

the class ARecordPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final PointableAllocator allocator = new PointableAllocator();
    final IAType inputType = recType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.OBJECT) : recType;
    final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
    final APrintVisitor printVisitor = new APrintVisitor();
    final Pair<PrintStream, ATypeTag> arg = new Pair<>(null, null);
    return new IPrinter() {

        @Override
        public void init() {
            arg.second = inputType.getTypeTag();
        }

        @Override
        public void print(byte[] b, int start, int l, PrintStream ps) throws HyracksDataException {
            recAccessor.set(b, start, l);
            arg.first = ps;
            recAccessor.accept(printVisitor, arg);
        }
    };
}