javax.enterprise.deploy.spi.status.ProgressObject.java Source code

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package javax.enterprise.deploy.spi.status;

import javax.enterprise.deploy.spi.TargetModuleID;
import javax.enterprise.deploy.spi.exceptions.OperationUnsupportedException;

/**
 * The ProgressObject interface tracks and reports
 * the progress of the deployment activities,
 * distribute, start, stop, undeploy.  
 *
 * <p>This class has an <code> optional</code> cancel 
 * method.  The support of the cancel function can 
 * be tested by the isCancelSupported method.
 * </p>
 *
 * <p>The ProgressObject structure allows the
 * user the option of polling for status or to
 * provide a callback.
 * </p>
 */
public interface ProgressObject {

    /**
     * Retrieve the status of this activity.
     *
     * @return An object containing the status
     *          information.
     */
    public DeploymentStatus getDeploymentStatus();

    /**
     * Retrieve the list of TargetModuleIDs successfully
     * processed or created by the associated DeploymentManager
     * operation. 
     *
     * @return a list of TargetModuleIDs.
     */
    public TargetModuleID[] getResultTargetModuleIDs();

    /**
     * Return the ClientConfiguration object associated with the
     * TargetModuleID.
     *
     * @return ClientConfiguration for a given TargetModuleID or 
     *         null if none exists.
     */
    public ClientConfiguration getClientConfiguration(TargetModuleID id);

    /**
     * Tests whether the vendor supports a cancel 
     * opertation for deployment activities.
     *
     * @return <code>true</code> if canceling an
     *         activity is supported by this platform.
     */
    public boolean isCancelSupported();

    /**
     * (optional)
     * A cancel request on an in-process operation 
     * stops all further processing of the operation and returns
     * the environment to it original state before the operation
     * was executed.  An operation that has run to completion 
     * cannot be cancelled.
     *
     * @throws OperationUnsupportedException this optional command
     *         is not supported by this implementation.
     */
    public void cancel() throws OperationUnsupportedException;

    /**
     * Tests whether the vendor supports a stop
     * opertation for deployment activities.
     *
     * @return <code>true</code> if canceling an
     *         activity is supported by this platform.
     */
    public boolean isStopSupported();

    /**
     * (optional)
     * A stop request on an in-process operation allows the 
     * operation on the current TargetModuleID to run to completion but 
     * does not process any of the remaining unprocessed TargetModuleID 
     * objects.  The processed TargetModuleIDs must be returned by the 
     * method getResultTargetModuleIDs.
     *
     * @throws OperationUnsupportedException this optional command
     *         is not supported by this implementation.
     */
    public void stop() throws OperationUnsupportedException;

    /**
     * Add a listener to receive Progress events on deployment
     * actions.
     *
     * @param pol the listener to receive events
     * @see ProgressEvent 
     */
    public void addProgressListener(ProgressListener pol);

    /**
     * Remove a ProgressObject listener.
     *
     * @param pol the listener being removed
     * @see ProgressEvent 
     */
    public void removeProgressListener(ProgressListener pol);
}