org.apache.flink.formats.parquet

Class ParquetMapInputFormat

java.lang.Object

org.apache.flink.api.common.io.RichInputFormat<OT,FileInputSplit>

org.apache.flink.api.common.io.FileInputFormat<E>

org.apache.flink.formats.parquet.ParquetInputFormat<Map>

org.apache.flink.formats.parquet.ParquetMapInputFormat

All Implemented Interfaces:

Serializable, CheckpointableInputFormat<FileInputSplit,Tuple2<Long,Long>>, InputFormat<Map,FileInputSplit>, InputSplitSource<FileInputSplit>

public class ParquetMapInputFormat
extends ParquetInputFormat<Map>

An implementation of ParquetInputFormat to read Map records from Parquet files.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.api.common.io.FileInputFormat

FileInputFormat.FileBaseStatistics, FileInputFormat.InputSplitOpenThread

Field Summary

Fields inherited from class org.apache.flink.formats.parquet.ParquetInputFormat

PARQUET_SKIP_CORRUPTED_RECORD, PARQUET_SKIP_WRONG_SCHEMA_SPLITS

Fields inherited from class org.apache.flink.api.common.io.FileInputFormat

currentSplit, ENUMERATE_NESTED_FILES_FLAG, enumerateNestedFiles, filePath, INFLATER_INPUT_STREAM_FACTORIES, minSplitSize, numSplits, openTimeout, READ_WHOLE_SPLIT_FLAG, splitLength, splitStart, stream, unsplittable

Constructor Summary

Constructors

Constructor and Description
ParquetMapInputFormat(Path path, org.apache.parquet.schema.MessageType messageType)

Method Summary

Modifier and Type	Method and Description
protected Map	convert(Row row) This ParquetInputFormat read parquet record as Row by default.

Methods inherited from class org.apache.flink.formats.parquet.ParquetInputFormat

close, configure, getCurrentState, getFieldNames, getFieldTypes, getPredicate, nextRecord, open, reachedEnd, reopen, selectFields, setFilterPredicate

Methods inherited from class org.apache.flink.api.common.io.FileInputFormat

acceptFile, createInputSplits, decorateInputStream, extractFileExtension, getFilePath, getFilePaths, getFileStats, getFileStats, getInflaterInputStreamFactory, getInputSplitAssigner, getMinSplitSize, getNestedFileEnumeration, getNumSplits, getOpenTimeout, getSplitLength, getSplitStart, getStatistics, registerInflaterInputStreamFactory, setFilePath, setFilePath, setFilePaths, setFilePaths, setFilesFilter, setMinSplitSize, setNestedFileEnumeration, setNumSplits, setOpenTimeout, supportsMultiPaths, testForUnsplittable, toString

Methods inherited from class org.apache.flink.api.common.io.RichInputFormat

closeInputFormat, getRuntimeContext, openInputFormat, setRuntimeContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ParquetMapInputFormat

public ParquetMapInputFormat(Path path,
                             org.apache.parquet.schema.MessageType messageType)

Method Detail

convert

protected Map convert(Row row)

Description copied from class: ParquetInputFormat

This ParquetInputFormat read parquet record as Row by default. Sub classes of it can extend this method to further convert row to other types, such as POJO, Map or Tuple.

Specified by:

convert in class ParquetInputFormat<Map>

Parameters:

row - row read from parquet file

Returns:

E target result type