com.kabira.platform

Enum Transaction.IsolationLevel

java.lang.Object

java.lang.Enum<Transaction.IsolationLevel>

com.kabira.platform.Transaction.IsolationLevel

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Transaction.IsolationLevel>

Enclosing class:

Transaction

public static enum Transaction.IsolationLevel
extends java.lang.Enum<Transaction.IsolationLevel>

Transaction isolation levels.

Enum Constant Summary

Enum Constants

Enum Constant and Description
READ_COMMITTED_SNAPSHOT Access data that has been committed.
SERIALIZABLE All access is serialized using shared read and exclusive write locks.

Method Summary

Modifier and Type	Method and Description
static Transaction.IsolationLevel	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Transaction.IsolationLevel[]	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

READ_COMMITTED_SNAPSHOT

public static final Transaction.IsolationLevel READ_COMMITTED_SNAPSHOT

Access data that has been committed. A snapshot of the data is taken when a field is read, but locks are immediately released to allow other transactions to update the data. Multiple accesses to the same field returns the same data, even if the underlying object has been updated in other transactions. If an attempt is made to subsequently update the data after another transaction has made changes, a deadlock exception is thrown to retry the transaction.

SERIALIZABLE

public static final Transaction.IsolationLevel SERIALIZABLE

All access is serialized using shared read and exclusive write locks.

Method Detail

values

public static Transaction.IsolationLevel[] 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 (Transaction.IsolationLevel c : Transaction.IsolationLevel.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Transaction.IsolationLevel 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