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JSR-000372: JavaServer(TM) Faces 2.3 API

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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.faces.flow.builder;

import javax.el.ValueExpression;

/**
 * Create a case in the current switch.
 * 
 * @since 2.2
 */
public abstract class SwitchCaseBuilder {
    
    /**
     * 
     * Create a new case in the current switch.
     * 
     * @since 2.2
     *
     * @return the builder instance
     */
    public abstract SwitchCaseBuilder switchCase();
        
    /**
     * 
     * Set the if in the previously created switch case.
     * 
     * @param expression the {@code ValueExpression} to be evaluated to see if this case
     * is chosen.
     * 
     * @throws NullPointerException if any of the parameters are {@code null}
     * @since 2.2
     * 
     * @return the builder instance
     */
    public abstract SwitchCaseBuilder condition(ValueExpression expression);
    
    /**
     * 
     * Set the if in the previously created switch case.
     * 
     * @param expression the {@code ValueExpression} String to be evaluated to see if this case
     * is chosen.
     * 
     * @throws NullPointerException if any of the parameters are {@code null}
     * @since 2.2
     * 
     * @return the builder instance
     */
    public abstract SwitchCaseBuilder condition(String expression);
    
    /**
     * 
     * Set the outcome in the previously created switch case.
     * 
     * @param outcome the outcome to be returned if the condition evaluates to {@code true}.
     * 
     * @throws NullPointerException if any of the parameters are {@code null}
     * @since 2.2
     *
     * @return the builder instance
     * 
     */
    public abstract SwitchCaseBuilder fromOutcome(String outcome);
        
}