001    /*
002     * Copyright 2004 Chris Nelson
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
007     * Unless required by applicable law or agreed to in writing,
008     * software distributed under the License is distributed on an "AS IS" BASIS,
009     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
010     * See the License for the specific language governing permissions and limitations under the License.
011     */
012    package org.trails.component;
013    
014    import org.apache.tapestry.IActionListener;
015    import org.apache.tapestry.IRequestCycle;
016    import org.trails.descriptor.IMethodDescriptor;
017    import org.trails.exception.TrailsRuntimeException;
018    
019    
020    public abstract class InvokeMethod extends TrailsComponent
021    {
022            public abstract IMethodDescriptor getMethodDescriptor();
023    
024            public abstract void setMethodDescriptor(IMethodDescriptor MethodDescriptor);
025    
026            public abstract IActionListener getListener();
027    
028            public abstract void setListener(IActionListener Listener);
029    
030            public abstract Object getModel();
031    
032            public abstract void setModel(Object Model);
033    
034            public void click(IRequestCycle cycle)
035            {
036                    try
037                    {
038                            getMethodDescriptor().getMethod().invoke(getModel());
039                    } catch (Exception e)
040                    {
041                            throw new TrailsRuntimeException(e, getModel().getClass());
042                    }
043    
044                    if (getListener() != null)
045                    {
046                            getListener().actionTriggered(this, cycle);
047                    }
048            }
049    }