Package com.streambase.sb.operator

Enum Class TransactionIsolationLevel

java.lang.Object
java.lang.Enum<TransactionIsolationLevel>
com.streambase.sb.operator.TransactionIsolationLevel
All Implemented Interfaces:
Serializable, Comparable<TransactionIsolationLevel>, Constable
public enum TransactionIsolationLevel extends Enum<TransactionIsolationLevel>
This describes the server's transaction isolation level (only meaningful for com.streambase.sb.operator.StorageMethod.TRANSACTIONAL_MEMORY)
Since:
10.2

  • Enum Constant Details

    • READ_COMMITTED_SNAPSHOT

      public static final TransactionIsolationLevel READ_COMMITTED_SNAPSHOT
      Modifications are only visible outside of the current transaction when it commits. Snapshots are taken from the last committed transaction (i.e. It is not a dirty read) to ensure read consistency during a transaction. No transaction read locks are taken during the transaction allowing modifications to occur while reading the data.

    • SERIALIZABLE

      public static final TransactionIsolationLevel SERIALIZABLE
      Modifications are only visible outside of the current transaction when it commits. Transaction read locks are taken for the duration of the transaction to ensure read consistency. All writes are blocked while a transaction read lock is held.

  • Method Details

    • values

      public static TransactionIsolationLevel[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static TransactionIsolationLevel valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name
      NullPointerException - if the argument is null