Java PrimerMethod Properties in Java

Listing 9. The "StringName newInstance(name)" class method of StringName.


public class StringName extends AbstractName {
	/**
	 * sStringNames stores all StringNames retrieved using newInstance
	 */
	protected static Hashtable sStringNames= new Hashtable();
	...

	/**
	 * Returns a pre-existing StringName, if one exists.
	 * Creates a new StringName and stores it, if none exists.
	 * @methodtype factory
	 * @methodproperties class
	 */
	public static StringName newInstance(String name) {
		StringName sn= (StringName) sStringNames.get(name);
		if(sn == null) {
			sn= new StringName(name);
			sStringNames.put(name, sn);
		}
		return sn;
	}
	...
}

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