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package javax.resource.spi;
/**
* This interface may be optionally implemented by a
* <code>ManagedConnectionFactory</code> to provide its level of transaction
* support at runtime.
*
* <p>When a <code>ManagedConnectionFactory</code> implements this interface,
* the application server uses the <code>TransactionSupportLevel</code> returned
* by getTransactionSupport() method and not the value specified in the
* resource adapter deployment descriptor or deployer configuration
*
* @since 1.6
* @version Java EE Connector Architecture 1.6
*/
public interface TransactionSupport extends java.io.Serializable {
/**
* An enumerated type that represents the levels of transaction support
* a resource adapter may support.
*
* @since 1.6
* @version Java EE Connector Architecture 1.6
*/
public enum TransactionSupportLevel {
/**
* The resource adapter supports neither resource manager nor JTA
* transactions.
* @since 1.6
*/
NoTransaction,
/**
* The resource adapter supports resource manager local transactions
* by implementing the <code>LocalTransaction</code> interface.
* @since 1.6
*/
LocalTransaction,
/**
* The resource adapter supports both resource manager local
* and JTA transactions by implementing the <code>LocalTransaction</code>
* and <code>XAResource</code> interfaces.
* @since 1.6
*/
XATransaction
};
/**
* Get the level of transaction support, supported by the
* <code>ManagedConnectionFactory</code>. A resource adapter must always
* return a level of transaction support whose ordinal value in
* <code>TransactionSupportLevel</code> enum is equal to or lesser than
* the resource adapter's transaction support classification.
*
* @since 1.6
*/
public TransactionSupportLevel getTransactionSupport();
}