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TSL2 Framework Commons (Collections, Actions/Excecution, Readers, Xml, Print, Mail, FuzzyFinder, Proxies, Network-Structure)
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package de.tsl2.nano.action;

import java.util.Collection;

/**
 * provides all informations to start an action (through Runnable) and to handle a graphical user interface of type
 * button etc.
 * 
 * @author ts 13.11.2008
 * @version $Revision: 1.0 $
 */
public interface IAction extends Runnable {
    public static final String CANCELED = "de.tsl2.nano.action.action_cancelled";

    /** dialog return value - no dialog handling will be done */
    static final int MODE_UNDEFINED = 0;
    /** dialog return value: dialog will be closed, and IDialogConstants.CANCEL_ID will be returned */
    static final int MODE_DLG_CANCEL = 1;
    /** dialog return value: dialog will be closed, and IDialogConstants.OK_ID will be returned */
    static final int MODE_DLG_OK = 2;

    /**
     * Getter isEnabled
     * 
     * @return Returns the isEnabled.
     */
    boolean isEnabled();

    /**
     * Setter isEnabled
     * 
     * @param isEnabled The isEnabled to set.
     */
    void setEnabled(boolean isEnabled);

    /**
     * Getter getKeyStroke
     * 
     * @return Returns the keyStroke.
     */
    Object getKeyStroke();

    /**
     * Getter getId
     * 
     * @return Returns the id.
     */
    String getId();

    /**
     * Getter getShortDescription
     * 
     * @return Returns the shortDescription.
     */
    String getShortDescription();

    /**
     * Getter getLongDescription
     * 
     * @return Returns the longDescription.
     */
    String getLongDescription();

    /**
     * @return image
     */
    String getImagePath();

    /**
     * Getter isDefault
     * 
     * @return Returns the isDefault.
     */
    boolean isDefault();

    /**
     * setDefault
     * 
     * @param isDefault whether to set the action as default action
     */
    void setDefault(boolean isDefault);

    /**
     * Getter isSynchron
     * 
     * @return Returns the synchron.
     */
    boolean isSynchron();

    /**
     * The action to be started
     * 
     * @return result of the action. use {@link #CANCELED} to define for buttons, the action was canceled.
     * @throws Exception
     */
    RETURNTYPE action() throws Exception;

    /**
     * starts this action.
     * 
     * @return the result
     */
    RETURNTYPE activate();

    /**
     * the receivers will receive the result of the activation.
     * 
     * @return list of ids of receiver fields (IComponentDescriptor)
     */
    Collection getReceiverIDs();

    /**
     * getArgumentTypes
     * 
     * @return optional definition of argument types to check {@link #getParameter()} and
     *         {@link #setParameter(Object...)}. default is null
     */
    Class[] getArgumentTypes();

    /**
     * @return optional call arguments for action.
     */
    Object[] getParameter();

    Object getParameter(int i);

    /**
     * @param parameter call arguments
     */
    IAction setParameter(Object... parameter);

    /**
     * action mode. e.g. on dialogs it is usable to define the buttons result type. see {@link #MODE_DLG_CANCEL},
     * {@link #MODE_DLG_OK}.
     * 
     * @return action mode
     */
    int getActionMode();

    boolean isRunning();
    
    /**
     * starts the given action for all items of the given collection - as first action parameter.
     * 
     * @param forCollection to iterate
     * @param doAction to do
     * @return iteration size
     */
    static int doFor(Collection forCollection, IAction doAction) {
        int count = 0;
        for (final Object item : forCollection) {
            doAction.setParameter(new Object[] { item });
            doAction.activate();
            count++;
        }
        return count;
    }

}