Package alluxio.client.file.cache.store

Enum PageStoreType

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<PageStoreType>
    public enum PageStoreType
extends java.lang.Enum<PageStoreType>
    This represents the different page store implementations that can be instantiated.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      LOCAL
      A simple store with pages on the local filesystem.
      MEM
      A simple store with pages on the memory (HeapByteBuffer).
      ROCKS
      A store that utilizes RocksDB to store and retrieve pages.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      double getOverheadRatio()  
      static PageStoreType valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static PageStoreType[] 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

      • LOCAL

        public static final PageStoreType LOCAL
        A simple store with pages on the local filesystem.

      • ROCKS

        public static final PageStoreType ROCKS
        A store that utilizes RocksDB to store and retrieve pages.

      • MEM

        public static final PageStoreType MEM
        A simple store with pages on the memory (HeapByteBuffer).

    • Method Detail

      • values

        public static PageStoreType[] 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 (PageStoreType c : PageStoreType.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static PageStoreType valueOf​(java.lang.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:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null

      • getOverheadRatio

        public double getOverheadRatio()
        Returns:
        overhead ratio