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package javax.swing.text;

import java.awt.Component;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;

import java.util.Enumeration;
import java.util.Hashtable;



A collection of attributes to associate with an element in a document.
Since these are typically used to associate character and paragraph
styles with the element, operations for this are provided.  Other
customized attributes that get associated with the element will
effectively be name-value pairs that live in a hierarchy and if a name
(key) is not found locally, the request is forwarded to the parent.
Commonly used attributes are separated out to facilitate alternative
implementations that are more efficient.
Author:
 Timothy Prinzing/**
 * A collection of attributes to associate with an element in a document.
 * Since these are typically used to associate character and paragraph
 * styles with the element, operations for this are provided.  Other
 * customized attributes that get associated with the element will
 * effectively be name-value pairs that live in a hierarchy and if a name
 * (key) is not found locally, the request is forwarded to the parent.
 * Commonly used attributes are separated out to facilitate alternative
 * implementations that are more efficient.
 *
 * @author  Timothy Prinzing
 */
public interface Style extends MutableAttributeSet {

    
Fetches the name of the style.   A style is not required to be named,
so null is returned if there is no name
associated with the style.
Returns:
the name/**
     * Fetches the name of the style.   A style is not required to be named,
     * so <code>null</code> is returned if there is no name
     * associated with the style.
     *
     * @return the name
     */
    public String getName();

    
Adds a listener to track whenever an attribute
has been changed.
Params:
l – the change listener/**
     * Adds a listener to track whenever an attribute
     * has been changed.
     *
     * @param l the change listener
     */
    public void addChangeListener(ChangeListener l);

    
Removes a listener that was tracking attribute changes.
Params:
l – the change listener/**
     * Removes a listener that was tracking attribute changes.
     *
     * @param l the change listener
     */
    public void removeChangeListener(ChangeListener l);


}