Package org.apache.parquet.format

Enum DataPageHeaderV2._Fields

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 Details

    • 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. Every page must begin at a row boundary (repetition_level = 0): rows must **not** be split across page boundaries when using V2 data pages.

    • ENCODING

      public static final DataPageHeaderV2._Fields ENCODING
      Encoding used for data in this page *
      See Also:

    • 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 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 the data in this page *

  • Method Details

    • values

      public static DataPageHeaderV2._Fields[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      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