Uses of Interface
org.apache.drill.exec.record.ColumnConverter

Packages that use ColumnConverter

Package	Description
org.apache.drill.exec.record
org.apache.drill.exec.store.avro

Uses of ColumnConverter in org.apache.drill.exec.record

Classes in org.apache.drill.exec.record that implement ColumnConverter

Modifier and Type	Class and Description
static class	ColumnConverter.ArrayColumnConverter Converts and writes array values using ColumnConverter.ArrayColumnConverter.valueConverter into ColumnConverter.ArrayColumnConverter.arrayWriter.
static class	ColumnConverter.DictColumnConverter Converts and writes dict values using provided key / value converters.
static class	ColumnConverter.DummyColumnConverter Does nothing, is used when column is not projected to avoid unnecessary column values conversions and writes.
static class	ColumnConverter.MapColumnConverter Converts and writes all map children using provided ColumnConverter.MapColumnConverter.converters.
static class	ColumnConverter.ScalarColumnConverter Converts and writes scalar values using provided ColumnConverter.ScalarColumnConverter.valueConverter.

Methods in org.apache.drill.exec.record that return ColumnConverter

Modifier and Type	Method and Description
ColumnConverter	ColumnConverterFactory.getConverter(TupleMetadata providedSchema, ColumnMetadata readerSchema, ObjectWriter writer) Based on column type, creates corresponding column converter which holds conversion logic and appropriate writer to set converted data into.
protected ColumnConverter	ColumnConverterFactory.getMapConverter(TupleMetadata providedSchema, TupleMetadata readerSchema, TupleWriter tupleWriter)
ColumnConverter	ColumnConverterFactory.getRootConverter(TupleMetadata providedSchema, TupleMetadata readerSchema, TupleWriter tupleWriter)

Constructors in org.apache.drill.exec.record with parameters of type ColumnConverter

Constructor and Description
ArrayColumnConverter(ArrayWriter arrayWriter, ColumnConverter valueConverter)
DictColumnConverter(DictWriter dictWriter, ColumnConverter keyConverter, ColumnConverter valueConverter)

Constructor parameters in org.apache.drill.exec.record with type arguments of type ColumnConverter

Constructor and Description
MapColumnConverter(ColumnConverterFactory factory, TupleMetadata providedSchema, TupleWriter tupleWriter, Map<String,ColumnConverter> converters)

Uses of ColumnConverter in org.apache.drill.exec.store.avro

Classes in org.apache.drill.exec.store.avro that implement ColumnConverter

Modifier and Type	Class and Description
static class	AvroColumnConverterFactory.MapColumnConverter Converts and writes all map children using provided AvroColumnConverterFactory.MapColumnConverter.converters.

Methods in org.apache.drill.exec.store.avro that return ColumnConverter

Modifier and Type	Method and Description
protected ColumnConverter	AvroColumnConverterFactory.getMapConverter(TupleMetadata providedSchema, TupleMetadata readerSchema, TupleWriter tupleWriter) Based on provided schema, given converted Avro schema and current row writer generates list of column converters based on column type for AvroColumnConverterFactory.MapColumnConverter and returns it.

Methods in org.apache.drill.exec.store.avro that return types with arguments of type ColumnConverter

Modifier and Type	Method and Description
List<ColumnConverter>	AvroColumnConverterFactory.initConverters(TupleMetadata providedSchema, TupleMetadata readerSchema, RowSetLoader rowWriter) Based on given converted Avro schema and current row writer generates list of column converters based on column type.

Method parameters in org.apache.drill.exec.store.avro with type arguments of type ColumnConverter

Modifier and Type	Method and Description
void	AvroColumnConverterFactory.buildMapMembers(org.apache.avro.generic.GenericRecord genericRecord, TupleMetadata providedSchema, TupleWriter tupleWriter, List<ColumnConverter> converters)

Constructor parameters in org.apache.drill.exec.store.avro with type arguments of type ColumnConverter

Constructor and Description
MapColumnConverter(AvroColumnConverterFactory factory, TupleMetadata providedSchema, TupleWriter tupleWriter, List<ColumnConverter> converters)