parquet.format

Enum FileMetaData._Fields

java.lang.Object

java.lang.Enum<FileMetaData._Fields>

parquet.format.FileMetaData._Fields

All Implemented Interfaces:

Serializable, Comparable<FileMetaData._Fields>, org.apache.thrift.TFieldIdEnum

Enclosing class:

FileMetaData

public static enum FileMetaData._Fields
extends Enum<FileMetaData._Fields>
implements org.apache.thrift.TFieldIdEnum

The set of fields this struct contains, along with convenience methods for finding and manipulating them.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CREATED_BY String for application that wrote this file.
KEY_VALUE_METADATA Optional key/value metadata *
NUM_ROWS Number of rows in this file *
ROW_GROUPS Row groups in this file *
SCHEMA Parquet schema for this file.
VERSION Version of this file *

Method Summary

Methods

Modifier and Type	Method and Description
static FileMetaData._Fields	findByName(String name) Find the _Fields constant that matches name, or null if its not found.
static FileMetaData._Fields	findByThriftId(int fieldId) Find the _Fields constant that matches fieldId, or null if its not found.
static FileMetaData._Fields	findByThriftIdOrThrow(int fieldId) Find the _Fields constant that matches fieldId, throwing an exception if it is not found.
String	getFieldName()
short	getThriftFieldId()
static FileMetaData._Fields	valueOf(String name) Returns the enum constant of this type with the specified name.
static FileMetaData._Fields[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

VERSION

public static final FileMetaData._Fields VERSION

Version of this file *

SCHEMA

public static final FileMetaData._Fields SCHEMA

Parquet schema for this file. This schema contains metadata for all the columns. The schema is represented as a tree with a single root. The nodes of the tree are flattened to a list by doing a depth-first traversal. The column metadata contains the path in the schema for that column which can be used to map columns to nodes in the schema. The first element is the root *

NUM_ROWS

public static final FileMetaData._Fields NUM_ROWS

Number of rows in this file *

ROW_GROUPS

public static final FileMetaData._Fields ROW_GROUPS

Row groups in this file *

KEY_VALUE_METADATA

public static final FileMetaData._Fields KEY_VALUE_METADATA

Optional key/value metadata *

CREATED_BY

public static final FileMetaData._Fields CREATED_BY

String for application that wrote this file. This should be in the format version (build ). e.g. impala version 1.0 (build 6cf94d29b2b7115df4de2c06e2ab4326d721eb55)

Method Detail

values

public static FileMetaData._Fields[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (FileMetaData._Fields c : FileMetaData._Fields.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static FileMetaData._Fields valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

findByThriftId

public static FileMetaData._Fields findByThriftId(int fieldId)

Find the _Fields constant that matches fieldId, or null if its not found.

findByThriftIdOrThrow

public static FileMetaData._Fields findByThriftIdOrThrow(int fieldId)

Find the _Fields constant that matches fieldId, throwing an exception if it is not found.

findByName

public static FileMetaData._Fields findByName(String name)

Find the _Fields constant that matches name, or null if its not found.

getThriftFieldId

public short getThriftFieldId()

Specified by:

getThriftFieldId in interface org.apache.thrift.TFieldIdEnum

getFieldName

public String getFieldName()

Specified by:

getFieldName in interface org.apache.thrift.TFieldIdEnum