原创 Sample06 for Weblogic - Transactions and Security
0. Prerequisite It is pity that this chapter has no sample, I add one by myself, just for security. Firstly from domai
2020-06-16 15:13:28
原创 Sample03 for Glassfish - Session beans with lifecycle callbacks and @Resource inject
0. Prerequisite As sample01. 1. Customize general configuration As sample01 2. Customize code in chapter3 $
2020-06-16 15:13:28
原创 Sample02 for Weblogic - Simple example of Stateless, Stateful, MDB and JPA Enity
0. Prerequisite Actually this sample is postponed, please reference to prerequisites of sample03 and 04. 1. Customiz
2020-06-16 15:13:28
原创 A shell script to create a simple Session EJB
As learning EJB, usually I want to create new case from a old one, it is boring because there are always some variable
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原创 Sample04 for Glassfish - MDB Samples
0. Prerequisite As sample01. 1. Customize code in chapter4 $ cd $HOME/student/ejbactGF/chapter4 $ for i i
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原创 Sample03 for Weblogic - Session beans with lifecycle callbacks and @Resource inject
0. Prerequisite We take advantage of Weblogic attached sample db here, the data source has been configured in Weblogic
2020-06-16 15:13:28
原创 Sample02 for Glassfish - Simple example of Stateless, Stateful, MDB and JPA Enity
0. Prerequisite 1) JDBC resources We use default JDBC resources, which is based on database sun-appserv-samples: C
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原创 Sample05 for Weblogic - Interceptors and Timers
1. Customize code in chapter5 $ cd $HOME/student/ejbAction $ cd chapter5 $ for i in `find * -name "*.orig"`; do j=`exp
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原创 重置 WebLogic 管理密碼
If you forget the AdminServer password for your WebLogic 11g domain, you can reset it from the command line using the f
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原创 《DSAA》 9.6.2 雙連通性
如果一個連通的無向圖的任意頂點刪除後，剩下的圖仍然連通，該圖被稱爲雙連通的。 如果一個圖不是雙連通的，那麼那些將其刪除後不再連通的節點，被稱爲割裂點。 我們可以用深度優先生成樹來尋找割裂點，起點爲樹根，每向前搜索到一個點就會產生一條前向邊
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原创 《DSAA》 12.1 自頂向下伸展樹
在許多應用中，當一個節點被訪問後，馬上就很可能再次被訪問到，研究表明這種情況比人們預料的要頻繁的多。所以伸展樹的基本想法是：當一個節點被訪問後，它就要通過一系列的旋轉被放到根上。 自頂向下伸展樹的搜索方式非常獨特，它實際上是一個拆了又
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原创 Sample04 for Weblogic - MDB Samples
0. Prerequisite This case is for MDB, we still use "weblogic.examples.ejb30.QueueConnectionFactory" which is created i
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原创 How to setup Weblogic official sample - EJB
1. Download weblogic installer from www.oracle.com 2. Install Weblogic $ sudo xhost + # in case current user cannot
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原创 《DSAA》 12.2.3 紅黑樹的自頂向下刪除
當初自學圍棋的時候背過一些定式，一般定式都比較容易，從開始到結束用不了幾個回合。直到有一天遇到了像妖刀，大雪崩，大斜這樣的大型定式，變化極爲繁複，一個定式擺下去能佔滿1/4個棋盤，這個要掌握就非常困難了。 如果把算法類比爲圍棋的佈局，
2020-06-16 15:13:28
原创 《DSAA》 9.3.2 Dijkstra 算法
曾經下圍棋樂此不疲，雖說棋力總也不漲，最近聽朋友的建議學學算法，找來一本初級的《DSAA》，按照書上的講解或僞代碼寫了一些case，意外地覺得和下圍棋的樂趣有些類似。 這裏用 Dijkstra 算法求有向賦權圖中任一節點到其他所有節點的
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