Class MVStore.TxCounter

java.lang.Object
org.h2.mvstore.MVStore.TxCounter
Enclosing class:
MVStore
public static final class MVStore.TxCounter extends Object
Class TxCounter is a simple data structure to hold version of the store along with the counter of open transactions, which are still operating on this version.

  • Field Details

    • version

      public final long version
      Version of a store, this TxCounter is related to

    • counter

      private volatile int counter
      Counter of outstanding operation on this version of a store

    • counterUpdater

      private static final AtomicIntegerFieldUpdater<MVStore.TxCounter> counterUpdater

  • Constructor Details

    • TxCounter

      TxCounter(long version)

  • Method Details

    • get

      int get()

    • incrementAndGet

      int incrementAndGet()
      Increment and get the counter value.
      Returns:
      the new value

    • decrementAndGet

      int decrementAndGet()
      Decrement and get the counter values.
      Returns:
      the new value

    • toString

      public String toString()
      Overrides:
      toString in class Object