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package org.openide.windows;

import java.util.Set;


/**
 * Represents window group. The notion of window group is defined by
 * <a href="http://ui.netbeans.org/docs/ui/ws/ws_spec.html#3.7">Window system UI specification document</a>.
 * The concept of window group explains <a href="http://core.netbeans.org/windowsystem/changes.html#2.3">API changes document</a>.
 *
 * <p><p>
 * <b><font color="red"><em>Importatnt note: Do not provide implementation of this interface unless you are window system provider!</em></font></b>
 *
 * @author  Peter Zavadsky
 * @since 4.13
 */
public interface TopComponentGroup {
    /** Opens all TopComponent's belonging to this group which have opening flag
     * switched on. */
    public void open();

    /** Closes all TopComponent's belonging to this group which have closing flag
     * switched on. */
    public void close();

    //    /** Set of TopComponentS belonging to this group. */
    //    public Set getTopComponents(); // TEMP
}