Package org.apache.lucene.util.packed

Class PackedInts.NullReader

java.lang.Object
org.apache.lucene.index.NumericDocValues
org.apache.lucene.util.packed.PackedInts.Reader
org.apache.lucene.util.packed.PackedInts.NullReader
Enclosing class:
PackedInts
public static final class PackedInts.NullReader extends PackedInts.Reader
A PackedInts.Reader which has all its values equal to 0 (bitsPerValue = 0).

  • Field Summary

    Fields inherited from class org.apache.lucene.index.NumericDocValues

    EMPTY

  • Constructor Summary

    Constructors
    Constructor
    Description
    NullReader(int valueCount)
    Sole constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    get(int index)
    Returns the numeric value for the specified document ID.
    int
    get(int index, long[] arr, int off, int len)
    Bulk get: read at least one and at most len longs starting from index into arr[off:off+len] and return the actual number of values that have been read.
    int
    getBitsPerValue()
     
    long
    ramBytesUsed()
    Return the in-memory size in bytes.
    int
    size()
     

    Methods inherited from class org.apache.lucene.util.packed.PackedInts.Reader

    getArray, hasArray

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • NullReader

      public NullReader(int valueCount)
      Sole constructor.

  • Method Details

    • get

      public long get(int index)
      Description copied from class: NumericDocValues
      Returns the numeric value for the specified document ID.
      Specified by:
      get in class NumericDocValues
      Parameters:
      index - document ID to lookup
      Returns:
      numeric value

    • get

      public int get(int index, long[] arr, int off, int len)
      Description copied from class: PackedInts.Reader
      Bulk get: read at least one and at most len longs starting from index into arr[off:off+len] and return the actual number of values that have been read.
      Overrides:
      get in class PackedInts.Reader

    • getBitsPerValue

      public int getBitsPerValue()
      Specified by:
      getBitsPerValue in class PackedInts.Reader
      Returns:
      the number of bits used to store any given value. Note: This does not imply that memory usage is bitsPerValue * #values as implementations are free to use non-space-optimal packing of bits.

    • size

      public int size()
      Specified by:
      size in class PackedInts.Reader
      Returns:
      the number of values.

    • ramBytesUsed

      public long ramBytesUsed()
      Description copied from class: PackedInts.Reader
      Return the in-memory size in bytes.
      Specified by:
      ramBytesUsed in class PackedInts.Reader