diff options
Diffstat (limited to 'wizards/com/sun/star/wizards/ui/event/MethodInvocation.java')
-rw-r--r-- | wizards/com/sun/star/wizards/ui/event/MethodInvocation.java | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/wizards/com/sun/star/wizards/ui/event/MethodInvocation.java b/wizards/com/sun/star/wizards/ui/event/MethodInvocation.java new file mode 100644 index 000000000000..86c50b13ce02 --- /dev/null +++ b/wizards/com/sun/star/wizards/ui/event/MethodInvocation.java @@ -0,0 +1,109 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ +package com.sun.star.wizards.ui.event; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import com.sun.star.wizards.common.PropertyNames; + +/** + * Encapsulate a Method invocation. + * In the constructor one defines a method, a target object and an optional + * Parameter. + * Then one calls "invoke", with or without a parameter. <br/> + * Limitations: I do not check anything myself. If the param is not ok, from the + * wrong type, or the mothod doesnot exist on the given object. + * You can trick this class howmuch you want: it will all throw exceptions + * on the java level. i throw no error warnings or my own excceptions... + * @author rpiterman + */ +public class MethodInvocation +{ + + static final Class[] EMPTY_ARRAY = + { + }; + //the method to invoke. + Method mMethod; + //the object to invoke the method on. + Object mObject; + //with one Parameter / without + boolean mWithParam; + + /** Creates a new instance of MethodInvokation */ + public MethodInvocation(String methodName, Object obj) throws NoSuchMethodException + { + this(methodName, obj, null); + } + + public MethodInvocation(Method method, Object obj) + { + this(method, obj, null); + } + + public MethodInvocation(String methodName, Object obj, Class paramClass) throws NoSuchMethodException + { + this(paramClass == null ? obj.getClass().getMethod(methodName, null) : obj.getClass().getMethod(methodName, new Class[] + { + paramClass + }), obj, paramClass); + } + + public MethodInvocation(Method method, Object obj, Class paramClass) + { + mMethod = method; + mObject = obj; + mWithParam = !(paramClass == null); + } + + /** + * Returns the result of calling the method on the object, or null, if no result. + */ + public Object invoke(Object param) throws IllegalAccessException, InvocationTargetException + { + if (mWithParam) + { + return mMethod.invoke(mObject, new Object[] + { + (Object) param + }); + } + else + { + return mMethod.invoke(mObject, EMPTY_ARRAY); + } + } + + /** + * This method is a convenience method. + * It is the same as calling invoke(null); + */ + public Object invoke() throws IllegalAccessException, InvocationTargetException + { + return invoke(null); + } +} |