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The MyFaces Commons Subproject provides base classes for usage in both the MyFaces implementation and the MyFaces Tomahawk components. This is also a general set of utility classes for usage in your JSF projects independent of the implementation you might be deciding upon.

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/*
 * Copyright 2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.myfaces.util.el;

/**
 * You can use this class to perform tests.
 * Use this for example in JSF backing beans, like BaseFace.getUserInRole(String).
 *
 * @author Sylvain Vieujot (latest modification by $Author: skitching $)
 * @version $Revision: 355303 $ $Date: 2005-12-09 02:36:08 +0100 (Fr, 09 Dez 2005) $
 *
 */
public abstract class StringMap extends GenericMap {

	/**
	 * This method should return the result of the test.
	 */
	public abstract String getString(String testKey);

	public Object getValue(Object testKey){
		return getString( (String) testKey );
	}

	public Object get(Object key) {
		if( ! (key instanceof String) )
			return null;
		return getString( (String)key );
	}
}