| Package | Description |
|---|---|
| org.apache.arrow.vector.dictionary | |
| org.apache.arrow.vector.ipc | |
| org.apache.arrow.vector.util |
| Modifier and Type | Class and Description |
|---|---|
static class |
DictionaryProvider.MapDictionaryProvider |
| Modifier and Type | Class and Description |
|---|---|
class |
ArrowFileReader |
class |
ArrowReader
Abstract class to read Schema and ArrowRecordBatches.
|
class |
ArrowStreamReader
This class reads from an input stream and produces ArrowRecordBatches.
|
class |
JsonFileReader |
| Modifier and Type | Method and Description |
|---|---|
void |
JsonFileWriter.start(Schema schema,
DictionaryProvider provider) |
| Constructor and Description |
|---|
ArrowFileWriter(VectorSchemaRoot root,
DictionaryProvider provider,
WritableByteChannel out) |
ArrowStreamWriter(VectorSchemaRoot root,
DictionaryProvider provider,
OutputStream out)
Construct an ArrowStreamWriter with an optional DictionaryProvider for the OutputStream.
|
ArrowStreamWriter(VectorSchemaRoot root,
DictionaryProvider provider,
WritableByteChannel out)
Construct an ArrowStreamWriter with an optional DictionaryProvider for the WritableByteChannel.
|
ArrowWriter(VectorSchemaRoot root,
DictionaryProvider provider,
WritableByteChannel out)
Note: fields are not closed when the writer is closed
|
| Modifier and Type | Method and Description |
|---|---|
static void |
Validator.compareDictionaries(List<DictionaryEncoding> encodings1,
List<DictionaryEncoding> encodings2,
DictionaryProvider provider1,
DictionaryProvider provider2)
Validate two Dictionary encodings and dictionaries with id's from the encodings
|
static Field |
DictionaryUtility.toMessageFormat(Field field,
DictionaryProvider provider,
Set<Long> dictionaryIdsUsed)
Convert field and child fields that have a dictionary encoding to message format, so fields
have the dictionary type
NOTE: in the message format, fields have the dictionary type
in the memory format, they have the index type
|
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