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

Example 1 with AbstractObjectReader

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

the class BaseReaderBuilder method buildMap.

private List<AbstractObjectReader> buildMap(HyperVectorWrapper<? extends AbstractMapVector> vectors, VectorDescrip descrip) {
    List<AbstractObjectReader> readers = new ArrayList<>();
    MetadataProvider provider = descrip.parent.childProvider(descrip.metadata);
    MaterializedField mapField = vectors.getField();
    for (int i = 0; i < mapField.getChildren().size(); i++) {
        HyperVectorWrapper<? extends ValueVector> child = (HyperVectorWrapper<? extends ValueVector>) vectors.getChildWrapper(new int[] { i });
        VectorDescrip childDescrip = new VectorDescrip(provider, i, child.getField());
        readers.add(buildVectorReader(child, childDescrip));
        i++;
    }
    return readers;
}

Example 2 with AbstractObjectReader

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

the class BaseReaderBuilder method buildContainerChildren.

protected AbstractObjectReader[] buildContainerChildren(VectorContainer container, MetadataProvider mdProvider) {
    List<AbstractObjectReader> readers = new ArrayList<>();
    for (int i = 0; i < container.getNumberOfColumns(); i++) {
        VectorWrapper<?> vw = container.getValueVector(i);
        VectorDescrip descrip = new VectorDescrip(mdProvider, i, vw.getField());
        readers.add(buildVectorReader(vw, descrip));
    }
    return readers.toArray(new AbstractObjectReader[readers.size()]);
}

Example 3 with AbstractObjectReader

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

the class BaseReaderBuilder method buildMap.

private List<AbstractObjectReader> buildMap(AbstractMapVector vector, VectorDescrip descrip) {
    List<AbstractObjectReader> readers = new ArrayList<>();
    MetadataProvider provider = descrip.parent.childProvider(descrip.metadata);
    int i = 0;
    for (ValueVector child : vector) {
        VectorDescrip childDescrip = new VectorDescrip(provider, i, child.getField());
        readers.add(buildVectorReader(child, childDescrip));
        i++;
    }
    return readers;
}

Example 4 with AbstractObjectReader

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

the class SimpleReaderBuilder method build.

public static RowSetReaderImpl build(VectorContainer container, ReaderIndex rowIndex) {
    MetadataCreator mdCreator = new MetadataCreator();
    List<AbstractObjectReader> children = INSTANCE.buildContainerChildren(container, mdCreator);
    return new RowSetReaderImpl(mdCreator.tuple(), rowIndex, children);
}

Example 5 with AbstractObjectReader

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

the class HyperReaderBuilder method buildMap.

private AbstractObjectReader buildMap(VectorAccessor va, DataMode mode, ColumnMetadata metadata) {
    boolean isArray = mode == DataMode.REPEATED;
    // Map type
    AbstractObjectReader mapReader = MapReader.build(metadata, isArray ? null : va, buildMapMembers(va, metadata.tupleSchema()));
    if (!isArray) {
        return mapReader;
    }
    return ArrayReaderImpl.buildTuple(metadata, va, mapReader);
}