Java Code Examples for org.apache.arrow.vector.types.pojo.ArrowType#Union

The following examples show how to use org.apache.arrow.vector.types.pojo.ArrowType#Union . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ArrowTypeSerDe.java    From aws-athena-query-federation with Apache License 2.0 5 votes vote down vote up 
@Override
protected void doTypedSerialize(ArrowType arrowType, JsonGenerator jgen, SerializerProvider provider)
        throws IOException
{
    ArrowType.Union union = (ArrowType.Union) arrowType;
    jgen.writeStringField(MODE_FIELD, union.toString());
    jgen.writeArrayFieldStart(TYPE_IDS_FIELD);
    for (int typeId : union.getTypeIds()) {
        jgen.writeNumber(typeId);
    }
    jgen.writeEndArray();
}
Example 2
Source File: ArrowTypeSerDe.java    From aws-athena-query-federation with Apache License 2.0 5 votes vote down vote up 
@Override
protected ArrowType doTypedDeserialize(JsonParser jparser, DeserializationContext ctxt)
        throws IOException
{
    UnionMode mode = UnionMode.valueOf(getNextStringField(jparser, MODE_FIELD));
    assertFieldName(jparser, TYPE_IDS_FIELD);
    ImmutableList.Builder<Integer> typeIds = ImmutableList.builder();
    while (jparser.nextToken() != JsonToken.END_ARRAY) {
        typeIds.add(jparser.getValueAsInt());
    }
    return new ArrowType.Union(mode, Ints.toArray(typeIds.build()));
}
Example 3
Source File: CompleteType.java    From dremio-oss with Apache License 2.0 5 votes vote down vote up 
public static CompleteType union(Iterable<Field> fields){
  ImmutableList<Field> listOfFields = ImmutableList.copyOf(fields);
  int[] typeIds = new int[listOfFields.size()];
  for (int i =0; i < typeIds.length; i++) {
    typeIds[i] = MajorTypeHelper.getArrowMinorType(CompleteType.fromField(listOfFields.get(i)).toMinorType()).ordinal();
  }
  return new CompleteType(new ArrowType.Union(UnionMode.Sparse, typeIds), listOfFields);
}
Example 4
Source File: ArrowTypeSerDe.java    From aws-athena-query-federation with Apache License 2.0 4 votes vote down vote up 
private Serializer()
{
    super(ArrowType.class, ArrowType.Union.class);
}
Example 5
Source File: ArrowTypeSerDe.java    From aws-athena-query-federation with Apache License 2.0 4 votes vote down vote up 
private Deserializer()
{
    super(ArrowType.class, ArrowType.Union.class);
}
Example 6
Source File: APIFieldDescriber.java    From dremio-oss with Apache License 2.0 4 votes vote down vote up 
@Override
public Void visit(ArrowType.Union union) {
  return writeString(sqlTypeNameVisitor.visit(union));
}