?? wordcountserviceprovider.java
字號:
/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Sun Microsystems nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.beans.beancontext.*;import java.util.*;import java.io.*;/** * This class is the factory that delivers a word counting service. * The 3 methods defined in this class are the concrete implementations * of the BeanContextServiceProvider interface. For this demonstration, the primary * method of interest is getService(). The getService() methods returns a new * WordCount instance. It is called by the bean context when a nested * JavaBean requests the service. */public final class WordCountServiceProvider implements BeanContextServiceProvider { public Object getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) { // For this demo, we know that the cast from serviceSelector // to File will always work. final File document = (File)serviceSelector; /* Return an instance of the service. The service itself is * the WordCount interface, which is implemented here using * an anonymous inner class. */ return new WordCount() { public void countWords() { try { // Create a Reader to the DocumentBean's File BufferedReader br = new BufferedReader(new FileReader(document)); String line = null; int wordCount = 0; while ((line = br.readLine()) != null) { StringTokenizer st = new StringTokenizer(line); while (st.hasMoreTokens()) { System.out.println("Word " + (++wordCount) + " is: " + st.nextToken()); } } System.out.println("Total number of words in the document: " + wordCount); System.out.println("[WordCount service brought to you by WordCountServiceProvider]"); br.close(); } catch(Exception e) { } } }; } public void releaseService(BeanContextServices bcs, Object requestor, Object service) { // do nothing } public Iterator getCurrentServiceSelectors(BeanContextServices bcs, Class serviceClass) { return null; // do nothing }}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -