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package javax.activation;
import java.io.IOException;
/**
* JavaBeans components that are Activation Framework aware implement
* this interface to find out which command verb they're being asked
* to perform, and to obtain the DataHandler representing the
* data they should operate on. JavaBeans that don't implement
* this interface may be used as well. Such commands may obtain
* the data using the Externalizable interface, or using an
* application-specific method.
*/
public interface CommandObject {
/**
* Initialize the Command with the verb it is requested to handle
* and the DataHandler that describes the data it will
* operate on. NOTE: it is acceptable for the caller
* to pass null as the value for DataHandler.
*
* @param verb The Command Verb this object refers to.
* @param dh The DataHandler.
* @exception IOException for failures accessing data
*/
public void setCommandContext(String verb, DataHandler dh)
throws IOException;
}