Springトランザクション構成属性パラメータ


Springトランザクション記述情報は、TransactionDefinitionインタフェースによって定義されます.
 
1、取引移植性(propagation):
 
int PROPAGATION_REQUIRED = 0;
 
/**
	 * Support a current transaction; create a new one if none exists.
	 * Analogous to the EJB transaction attribute of the same name.
	 * <p>This is typically the default setting of a transaction definition,
	 * and typically defines a transaction synchronization scope.
	 */
	int PROPAGATION_REQUIRED = 0;

 
 int PROPAGATION_SUPPORTS = 1;
 
/**
	 * Support a current transaction; execute non-transactionally if none exists.
	 * Analogous to the EJB transaction attribute of the same name.
	 * <p><b>NOTE:</b> For transaction managers with transaction synchronization,
	 * <code>PROPAGATION_SUPPORTS</code> is slightly different from no transaction
	 * at all, as it defines a transaction scope that synchronization might apply to.
	 * As a consequence, the same resources (a JDBC <code>Connection</code>, a
	 * Hibernate <code>Session</code>, etc) will be shared for the entire specified
	 * scope. Note that the exact behavior depends on the actual synchronization
	 * configuration of the transaction manager!
	 * <p>In general, use <code>PROPAGATION_SUPPORTS</code> with care! In particular, do
	 * not rely on <code>PROPAGATION_REQUIRED</code> or <code>PROPAGATION_REQUIRES_NEW</code>
	 * <i>within</i> a <code>PROPAGATION_SUPPORTS</code> scope (which may lead to
	 * synchronization conflicts at runtime). If such nesting is unavoidable, make sure
	 * to configure your transaction manager appropriately (typically switching to
	 * "synchronization on actual transaction").
	 * @see org.springframework.transaction.support.AbstractPlatformTransactionManager#setTransactionSynchronization
	 * @see org.springframework.transaction.support.AbstractPlatformTransactionManager#SYNCHRONIZATION_ON_ACTUAL_TRANSACTION
	 */
	int PROPAGATION_SUPPORTS = 1;

 
 int PROPAGATION_MANDATORY = 2;
 
/**
	 * Support a current transaction; throw an exception if no current transaction
	 * exists. Analogous to the EJB transaction attribute of the same name.
	 * <p>Note that transaction synchronization within a <code>PROPAGATION_MANDATORY</code>
	 * scope will always be driven by the surrounding transaction.
	 */
	int PROPAGATION_MANDATORY = 2;
 
 
int PROPAGATION_REQUIRES_NEW = 3;
 
 
/**
	 * Create a new transaction, suspending the current transaction if one exists.
	 * Analogous to the EJB transaction attribute of the same name.
	 * <p><b>NOTE:</b> Actual transaction suspension will not work out-of-the-box
	 * on all transaction managers. This in particular applies to
	 * {@link org.springframework.transaction.jta.JtaTransactionManager},
	 * which requires the <code>javax.transaction.TransactionManager</code>
	 * to be made available it to it (which is server-specific in standard J2EE).
	 * <p>A <code>PROPAGATION_REQUIRES_NEW</code> scope always defines its own
	 * transaction synchronizations. Existing synchronizations will be suspended
	 * and resumed appropriately.
	 * @see org.springframework.transaction.jta.JtaTransactionManager#setTransactionManager
	 */
	int PROPAGATION_REQUIRES_NEW = 3;

 
 int PROPAGATION_NOT_SUPPORTED = 4;
 
 int PROPAGATION_NEVER = 5;
 
 int PROPAGATION_NESTED = 6;
 
2、取引の隔離度:
int ISOLATION_DEFAULT = -1;
 
/**
	 * Use the default isolation level of the underlying datastore.
	 * All other levels correspond to the JDBC isolation levels.
	 * @see java.sql.Connection
	 */
	int ISOLATION_DEFAULT = -1;
 
 
3、タイムアウト時間の設定
 
int TIMEOUT_DEFAULT = -1;
 
 
/**
	 * Use the default timeout of the underlying transaction system,
	 * or none if timeouts are not supported. 
	 */
	int TIMEOUT_DEFAULT = -1;

 
 
4.+/-Exception構成
 
メソッド内で例外が投げ出された場合(特定の例外であってもよい)に、トランザクションがコミットまたはロールバックされることを示します.