Examples with AbstractObjectReader org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader used on opensource projects

Example 6 with AbstractObjectReader

use of org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader in project drill by apache.

the class HyperReaderBuilder method buildContainerChildren.

protected List<AbstractObjectReader> buildContainerChildren(VectorContainer container, TupleMetadata schema) {
    List<AbstractObjectReader> readers = new ArrayList<>();
    for (int i = 0; i < container.getNumberOfColumns(); i++) {
        VectorWrapper<?> vw = container.getValueVector(i);
        VectorAccessor va = new HyperVectorAccessor(vw);
        readers.add(buildVectorReader(va, schema.metadata(i)));
    }
    return readers;
}

Example 7 with AbstractObjectReader

use of org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader in project drill by apache.

the class SimpleReaderBuilder method buildDict.

private AbstractObjectReader buildDict(ValueVector vector, VectorAccessor va, VectorDescrip descrip) {
    boolean isArray = descrip.metadata.isArray();
    DictVector dictVector;
    VectorAccessor dictAccessor;
    if (isArray) {
        dictVector = (DictVector) ((RepeatedValueVector) vector).getDataVector();
        dictAccessor = new SingleVectorAccessor(dictVector);
    } else {
        dictVector = (DictVector) vector;
        dictAccessor = va;
    }
    List<AbstractObjectReader> readers = buildMapMembers(dictVector, descrip.childProvider());
    AbstractObjectReader reader = DictReaderImpl.build(descrip.metadata, dictAccessor, readers);
    if (!isArray) {
        return reader;
    }
    return ArrayReaderImpl.buildTuple(descrip.metadata, va, reader);
}

Example 8 with AbstractObjectReader

use of org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader in project drill by apache.

the class SimpleReaderBuilder method buildMultiDList.

private AbstractObjectReader buildMultiDList(RepeatedListVector vector, VectorAccessor listAccessor, VectorDescrip listDescrip) {
    final ValueVector child = vector.getDataVector();
    if (child == null) {
        throw new UnsupportedOperationException("No child vector for repeated list.");
    }
    final VectorDescrip childDescrip = new VectorDescrip(listDescrip.childProvider(), 0, child.getField());
    final AbstractObjectReader elementReader = buildVectorReader(child, childDescrip);
    return ArrayReaderImpl.buildRepeatedList(listDescrip.metadata, listAccessor, elementReader);
}

Example 9 with AbstractObjectReader

use of org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader in project drill by axbaretto.

the class BaseReaderBuilder method buildContainerChildren.

protected List<AbstractObjectReader> buildContainerChildren(VectorContainer container, MetadataProvider mdProvider) {
    List<AbstractObjectReader> writers = new ArrayList<>();
    for (int i = 0; i < container.getNumberOfColumns(); i++) {
        @SuppressWarnings("resource") ValueVector vector = container.getValueVector(i).getValueVector();
        VectorDescrip descrip = new VectorDescrip(mdProvider, i, vector.getField());
        writers.add(buildVectorReader(vector, descrip));
    }
    return writers;
}

Example 10 with AbstractObjectReader

use of org.apache.drill.exec.vector.accessor.reader.AbstractObjectReader in project drill by apache.

the class SimpleReaderBuilder method buildMap.

private AbstractObjectReader buildMap(AbstractMapVector vector, VectorAccessor va, DataMode mode, VectorDescrip descrip) {
    final boolean isArray = mode == DataMode.REPEATED;
    // Map type
    final AbstractObjectReader mapReader = MapReader.build(descrip.metadata, isArray ? null : va, buildMapMembers(vector, descrip.parent.childProvider(descrip.metadata)));
    if (!isArray) {
        return mapReader;
    }
    return ArrayReaderImpl.buildTuple(descrip.metadata, va, mapReader);
}