The latest version update of the Java EE connector architecture API specification
The latest version update of the Java EE connector architecture API specification
Abstract: The Java EE connector architecture API specification provides developers with a method to create connectors that can interact with the enterprise information system (EIS) in the Java EE environment.This article will introduce the latest version update of the Java EE connector architecture API specification, including the characteristics and improvements of the newly added, and how to use these features to develop high -efficiency and reliable connectors.
text:
The Java EE connector architecture (Connector Architecture) allows developers to create a standardized and portable connector used to connect to the enterprise information system (EIS).The connector can access and interact data by connecting to EIS, such as ERP systems, databases, message queues, etc.The connector architecture provides seamless integration for the Java EE platform, and provides a standardized API, enabling developers to easily create powerful connectors applications.
The latest version of the Java EE connector architecture API specification is Java Ee Connector Architecture 1.7.This version has added some important features and improvements, including:
1. Support JCA 1.7: Java Ee Connector Architecture 1.7 version follows the JCA 1.7 specifications, provides better performance and stability, while repairing some bugs in the old version.
2. Asynchronous message transfer: The new version introduces the asynchronous message transmission mechanism, so that the connector can be more efficient when processing a large amount of messages.Developers can use the interface of new asynchronous message drive to achieve the transceiver function of asynchronous messages.
3. Support message monitor: The connector can register and listen to the message sent by EIS through the new message monitor interface.This can be used to realize the functions of real -time data transmission, event notification, and provide better real -time and response to enterprise applications.
Below is an example code that uses the Java EE connector architecture API:
1. Define the connector interface:
@Connector
public interface MyConnector {
@Connection
MyConnection getConnection() throws ResourceException;
}
@ConnectionDefinition(
connectionFactory = MyConnectionFactory.class,
connectionFactoryImpl = MyConnectionFactoryImpl.class,
connection = MyConnection.class,
connectionImpl = MyConnectionImpl.class
)
public interface MyConnection extends AutoCloseable {
void execute(String command) throws ResourceException;
}
2. Implement the connector interface:
@ConnectionFactory(
name = "java:comp/env/MyConnectionFactory",
description = "My Connection Factory",
interfaceName = "javax.resource.cci.ConnectionFactory"
)
public class MyConnectionFactoryImpl implements ConnectionFactory {
@Override
public Connection getConnection() {
// Create and return real connection instances
return new MyConnectionImpl();
}
}
public class MyConnectionImpl implements MyConnection {
@Override
public void execute(String command) throws ResourceException {
// Execute the connector -related logic
System.out.println("Executing command: " + command);
}
@Override
public void close() throws Exception {
// Close the connection resource
}
}
3. Configure connector:
<connector>
<resourceadapter>
<resourceadapter-class>com.example.MyConnectorImpl</resourceadapter-class>
<config-property>
<config-property-name>MyProperty</config-property-name>
<config-property-value>myValue</config-property-value>
</config-property>
</resourceadapter>
</connector>
The above code shows how to define and implement a simple connector, which can execute the specified command through the method in the connector interface.The `GetConnection () method in the connector implementation class returns the connection object to implement the connection logic by implementing the` MyConnection` interface.When configured the connector, you can set the attribute of the connector to provide additional configuration information for the connector.
Summary: The latest version of the Java EE connector architecture API specification provides more functions and improvements, enabling developers to build high -efficiency and reliable connector applications.Through standardized API and sample code, developers can easily understand and use the connecter architecture to realize interaction and data access with corporate information systems.
