Record Class RowGroup

java.lang.Object
java.lang.Record
dev.hardwood.metadata.RowGroup
public record RowGroup(List<ColumnChunk> columns, long totalByteSize, long numRows) extends Record
Row group metadata.

  • Constructor Summary

    Constructors
    Constructor
    Description
    RowGroup(List<ColumnChunk> columns, long totalByteSize, long numRows)
    Creates an instance of a RowGroup record class.

  • Method Summary

    Modifier and Type
    Method
    Description
    List<ColumnChunk>
    columns()
    Returns the value of the columns record component.
    final boolean
    equals(Object o)
    Indicates whether some other object is "equal to" this one.
    final int
    hashCode()
    Returns a hash code value for this object.
    long
    numRows()
    Returns the value of the numRows record component.
    final String
    toString()
    Returns a string representation of this record class.
    long
    totalByteSize()
    Returns the value of the totalByteSize record component.

    Methods inherited from class Object

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

  • Constructor Details

    • RowGroup

      public RowGroup(List<ColumnChunk> columns, long totalByteSize, long numRows)
      Creates an instance of a RowGroup record class.
      Parameters:
      columns - the value for the columns record component
      totalByteSize - the value for the totalByteSize record component
      numRows - the value for the numRows record component

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • columns

      public List<ColumnChunk> columns()
      Returns the value of the columns record component.
      Returns:
      the value of the columns record component

    • totalByteSize

      public long totalByteSize()
      Returns the value of the totalByteSize record component.
      Returns:
      the value of the totalByteSize record component

    • numRows

      public long numRows()
      Returns the value of the numRows record component.
      Returns:
      the value of the numRows record component