org.bytedeco.parquet

Class FileMetaData

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.parquet.FileMetaData

All Implemented Interfaces:

AutoCloseable

@Namespace(value="parquet")
 @NoOffset
 @Properties(inherit=parquet.class)
public class FileMetaData
extends Pointer

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
FileMetaData(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
void	AppendRowGroups(FileMetaData other)
boolean	can_decompress()
String	created_by()
EncryptionAlgorithm	encryption_algorithm()
String	footer_signing_key_metadata()
boolean	is_encryption_algorithm_set()
KeyValueMetadata	key_value_metadata()
static FileMetaData	Make(Pointer serialized_metadata, int[] inout_metadata_len)
static FileMetaData	Make(Pointer serialized_metadata, int[] inout_metadata_len, InternalFileDecryptor file_decryptor)
static FileMetaData	Make(Pointer serialized_metadata, IntBuffer inout_metadata_len)
static FileMetaData	Make(Pointer serialized_metadata, IntBuffer inout_metadata_len, InternalFileDecryptor file_decryptor)
static FileMetaData	Make(Pointer serialized_metadata, IntPointer inout_metadata_len)
static FileMetaData	Make(Pointer serialized_metadata, IntPointer inout_metadata_len, InternalFileDecryptor file_decryptor)
int	num_columns()
int	num_row_groups()
long	num_rows()
int	num_schema_elements()
RowGroupMetaData	RowGroup(int i)
SchemaDescriptor	schema()
String	SerializeToString() \brief Return Thrift-serialized representation of the metadata as a string
void	set_file_path(BytePointer path)
void	set_file_path(String path)
int	size()
boolean	VerifySignature(Pointer signature) Verify signature of FileMetadata when file is encrypted but footer is not encrypted (plaintext footer).
ParquetVersion.type	version()
ApplicationVersion	writer_version()
void	WriteTo(OutputStream dst)

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FileMetaData

public FileMetaData(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

Method Detail

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           IntPointer inout_metadata_len,
                                           @SharedPtr
                                           InternalFileDecryptor file_decryptor)

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           IntPointer inout_metadata_len)

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           IntBuffer inout_metadata_len,
                                           @SharedPtr
                                           InternalFileDecryptor file_decryptor)

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           IntBuffer inout_metadata_len)

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           int[] inout_metadata_len,
                                           @SharedPtr
                                           InternalFileDecryptor file_decryptor)

Make

@SharedPtr
public static FileMetaData Make(@Const
                                           Pointer serialized_metadata,
                                           @Cast(value="uint32_t*")
                                           int[] inout_metadata_len)

VerifySignature

@Cast(value="bool")
public boolean VerifySignature(@Const
                                                   Pointer signature)

Verify signature of FileMetadata when file is encrypted but footer is not encrypted (plaintext footer). Signature is 28 bytes (12 byte nonce and 16 byte tags) when encrypting FileMetadata

size

@Cast(value="uint32_t")
public int size()

num_columns

public int num_columns()

num_rows

@Cast(value="int64_t")
public long num_rows()

num_row_groups

public int num_row_groups()

version

public ParquetVersion.type version()

created_by

@StdString
public String created_by()

num_schema_elements

public int num_schema_elements()

RowGroup

@UniquePtr
public RowGroupMetaData RowGroup(int i)

writer_version

@Const
 @ByRef
public ApplicationVersion writer_version()

can_decompress

@Cast(value="bool")
public boolean can_decompress()

is_encryption_algorithm_set

@Cast(value="bool")
public boolean is_encryption_algorithm_set()

encryption_algorithm

@ByVal
public EncryptionAlgorithm encryption_algorithm()

footer_signing_key_metadata

@StdString
public String footer_signing_key_metadata()

WriteTo

public void WriteTo(OutputStream dst)

SerializeToString

@StdString
public String SerializeToString()

\brief Return Thrift-serialized representation of the metadata as a string

schema

@Const
public SchemaDescriptor schema()

key_value_metadata

@Const
 @SharedPtr
public KeyValueMetadata key_value_metadata()

set_file_path

public void set_file_path(@StdString
                          String path)

set_file_path

public void set_file_path(@StdString
                          BytePointer path)

AppendRowGroups

public void AppendRowGroups(@Const @ByRef
                            FileMetaData other)