J2ME in a Nutshell

Name

OutputConnection

Synopsis

OutputConnection is an interface implemented by connections that can provide an output stream to the data source.

The openOutputStream() obtains an output stream that can be used to write an ordered sequence of bytes from the data source, while openDataOutputStream returns a stream that can be used to write Java primitive data types to the connection in a platform-independent format. Data written using the latter method can be retrieved on the other side using a DataInputStream.

The result of calling these methods more than once is not defined by the specification. Sun’s reference implementations treat a second call as an error and throw an IOException. The openOutputStream() and openDataOutputStream() methods will also throw an IOException if the OutputConnection was obtained from a Connector open() call which specified a mode of Connector.READ.

                  
public interface OutputConnection extends Connection {  
// Public Instance Methods
   public abstract java.io.DataOutputStream openDataOutputStream(
        ) throws java.io.IOException;  
   public abstract java.io.OutputStream openOutputStream(
        ) throws java.io.IOException;  
}

Implementations

StreamConnection