1 package org.csc.phynixx.common.cast;
2
3 /*
4 * #%L
5 * phynixx-common
6 * %%
7 * Copyright (C) 2014 Christoph Schmidt-Casdorff
8 * %%
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 * #L%
21 */
22
23
24 /**
25 * Als Superklasse casted diese Klasse in die Subclass gegebene durch
26 * <code>this.getClass()</code>
27 *
28 * @author Christoph Schmidt-Casdorff
29 */
30 public class Implementor implements IImplementor {
31
32 /**
33 * prueft, ob uebergebene Klasse <code>assignable</code> von aktueller Klasse ist.
34 */
35 public <X> X cast(final Class<X> iface) {
36 if (iface == null) {
37 throw new IllegalArgumentException("Parameter 'cls' muss angegeben werden");
38 }
39 if (iface.isAssignableFrom(this.getClass())) {
40 return iface.cast(this);
41 }
42 throw new ClassCastException("Klasse " + this.getClass() + " kann nicht nach " + iface + " gewandelt werden");
43 }
44
45 public <X> boolean isImplementationOf(final Class<X> cls) {
46 return (cls != null) && cls.isAssignableFrom(this.getClass());
47 }
48
49 }