Package org.apache.parquet.format

Enum RowGroup._Fields

  • All Implemented Interfaces:
    Serializable, Comparable<RowGroup._Fields>, org.apache.thrift.TFieldIdEnum
    Enclosing class:
    RowGroup
    public static enum RowGroup._Fields
extends Enum<RowGroup._Fields>
implements org.apache.thrift.TFieldIdEnum
    The set of fields this struct contains, along with convenience methods for finding and manipulating them.

    • Enum Constant Detail

      • COLUMNS

        public static final RowGroup._Fields COLUMNS
        Metadata for each column chunk in this row group. This list must have the same order as the SchemaElement list in FileMetaData.

      • TOTAL_BYTE_SIZE

        public static final RowGroup._Fields TOTAL_BYTE_SIZE
        Total byte size of all the uncompressed column data in this row group *

      • NUM_ROWS

        public static final RowGroup._Fields NUM_ROWS
        Number of rows in this row group *

      • SORTING_COLUMNS

        public static final RowGroup._Fields SORTING_COLUMNS
        If set, specifies a sort ordering of the rows in this RowGroup. The sorting columns can be a subset of all the columns.

      • FILE_OFFSET

        public static final RowGroup._Fields FILE_OFFSET
        Byte offset from beginning of file to first page (data or dictionary) in this row group *

      • TOTAL_COMPRESSED_SIZE

        public static final RowGroup._Fields TOTAL_COMPRESSED_SIZE
        Total byte size of all compressed (and potentially encrypted) column data in this row group *

      • ORDINAL

        public static final RowGroup._Fields ORDINAL
        Row group ordinal in the file *

    • Method Detail

      • values

        public static RowGroup._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 (RowGroup._Fields c : RowGroup._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 RowGroup._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 RowGroup._Fields findByThriftId​(int fieldId)
        Find the _Fields constant that matches fieldId, or null if its not found.

      • findByThriftIdOrThrow

        public static RowGroup._Fields findByThriftIdOrThrow​(int fieldId)
        Find the _Fields constant that matches fieldId, throwing an exception if it is not found.

      • findByName

        public static RowGroup._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