java.lang.Object
- java.lang.Enum<DataPageHeaderV2._Fields>
- - org.apache.parquet.format.DataPageHeaderV2._Fields

All Implemented Interfaces:

Serializable, Comparable<DataPageHeaderV2._Fields>, org.apache.thrift.TFieldIdEnum

Enclosing class:

DataPageHeaderV2
```
public static enum DataPageHeaderV2._Fields
extends Enum<DataPageHeaderV2._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	Description
`DEFINITION_LEVELS_BYTE_LENGTH`	length of the definition levels
`ENCODING`	Encoding used for data in this page *
`IS_COMPRESSED`	whether the values are compressed.
`NUM_NULLS`	Number of NULL values, in this data page.
`NUM_ROWS`	Number of rows in this data page.
`NUM_VALUES`	Number of values, including NULLs, in this data page.
`REPETITION_LEVELS_BYTE_LENGTH`	length of the repetition levels
`STATISTICS`	optional statistics for this column chunk

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static DataPageHeaderV2._Fields`	`findByName(String name)`	Find the _Fields constant that matches name, or null if its not found.
`static DataPageHeaderV2._Fields`	`findByThriftId(int fieldId)`	Find the _Fields constant that matches fieldId, or null if its not found.
`static DataPageHeaderV2._Fields`	`findByThriftIdOrThrow(int fieldId)`	Find the _Fields constant that matches fieldId, throwing an exception if it is not found.
`String`	`getFieldName()`
`short`	`getThriftFieldId()`
`static DataPageHeaderV2._Fields`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static DataPageHeaderV2._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
  - NUM_VALUES
```
public static final DataPageHeaderV2._Fields NUM_VALUES
```
    Number of values, including NULLs, in this data page. *
  - NUM_NULLS
```
public static final DataPageHeaderV2._Fields NUM_NULLS
```
    Number of NULL values, in this data page. Number of non-null = num_values - num_nulls which is also the number of values in the data section *
  - NUM_ROWS
```
public static final DataPageHeaderV2._Fields NUM_ROWS
```
    Number of rows in this data page. which means pages change on record boundaries (r = 0) *
  - ENCODING
```
public static final DataPageHeaderV2._Fields ENCODING
```
    Encoding used for data in this page *
    
    See Also:
    
    Encoding
  - DEFINITION_LEVELS_BYTE_LENGTH
```
public static final DataPageHeaderV2._Fields DEFINITION_LEVELS_BYTE_LENGTH
```
    length of the definition levels
  - REPETITION_LEVELS_BYTE_LENGTH
```
public static final DataPageHeaderV2._Fields REPETITION_LEVELS_BYTE_LENGTH
```
    length of the repetition levels
  - IS_COMPRESSED
```
public static final DataPageHeaderV2._Fields IS_COMPRESSED
```
    whether the values are compressed. Which means the section of the page between definition_levels_byte_length + repetition_levels_byte_length + 1 and compressed_page_size (included) is compressed with the compression_codec. If missing it is considered compressed
  - STATISTICS
```
public static final DataPageHeaderV2._Fields STATISTICS
```
    optional statistics for this column chunk
- Method Detail
  - values
```
public static DataPageHeaderV2._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 (DataPageHeaderV2._Fields c : DataPageHeaderV2._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 DataPageHeaderV2._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 DataPageHeaderV2._Fields findByThriftId(int fieldId)
```
    Find the _Fields constant that matches fieldId, or null if its not found.
  - findByThriftIdOrThrow
```
public static DataPageHeaderV2._Fields findByThriftIdOrThrow(int fieldId)
```
    Find the _Fields constant that matches fieldId, throwing an exception if it is not found.
  - findByName
```
public static DataPageHeaderV2._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

Enum DataPageHeaderV2._Fields

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

NUM_VALUES

NUM_NULLS

NUM_ROWS

ENCODING

DEFINITION_LEVELS_BYTE_LENGTH

REPETITION_LEVELS_BYTE_LENGTH

IS_COMPRESSED

STATISTICS

Method Detail

values

valueOf

findByThriftId

findByThriftIdOrThrow

findByName

getThriftFieldId

getFieldName