org.apache.arrow.vector.dictionary

Interface DictionaryProvider

All Known Implementing Classes:

ArrowFileReader, ArrowReader, ArrowStreamReader, DictionaryProvider.MapDictionaryProvider, JsonFileReader

public interface DictionaryProvider

A manager for association of dictionary IDs to their corresponding Dictionary.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	DictionaryProvider.MapDictionaryProvider Implementation of DictionaryProvider that is backed by a hash-map.

Method Summary

Modifier and Type	Method and Description
Set<Long>	getDictionaryIds() Get all dictionary IDs.
Dictionary	lookup(long id) Return the dictionary for the given ID.

Method Detail

lookup

Dictionary lookup(long id)

Return the dictionary for the given ID.

getDictionaryIds

Set<Long> getDictionaryIds()

Get all dictionary IDs.