001    package org.apache.myfaces.tobago.taglib.decl;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one or more
005     * contributor license agreements.  See the NOTICE file distributed with
006     * this work for additional information regarding copyright ownership.
007     * The ASF licenses this file to You under the Apache License, Version 2.0
008     * (the "License"); you may not use this file except in compliance with
009     * the License.  You may obtain a copy of the License at
010     *
011     *      http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing, software
014     * distributed under the License is distributed on an "AS IS" BASIS,
015     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016     * See the License for the specific language governing permissions and
017     * limitations under the License.
018     */
019    
020    import org.apache.myfaces.tobago.apt.annotation.TagAttribute;
021    import org.apache.myfaces.tobago.apt.annotation.UIComponentTagAttribute;
022    import org.apache.myfaces.tobago.apt.annotation.DynamicExpression;
023    
024    /**
025     * $Id: HasAction.java 601107 2007-12-04 22:12:14Z bommel $
026     */
027    public interface HasAction {
028      /**
029       * Action to invoke when clicked.
030       * This must be a MethodBinding or a String representing the application action to invoke when
031       * this component is activated by the user.
032       * The MethodBinding must evaluate to a public method that takes no parameters,
033       * and returns a String (the logical outcome) which is passed to the
034       * NavigationHandler for this application.
035       * The String is directly passed to the Navigationhandler.
036       */
037      @TagAttribute
038      @UIComponentTagAttribute(type = "javax.faces.el.MethodBinding", expression = DynamicExpression.METHOD_BINDING)
039      void setAction(String action);
040    
041    }