echohfut
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最新评论
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hanmiao：
我在IBM网站上找到这篇文章，比较详细的介绍了信息分片与信息分 ...
Websphere MQ -
lancezhcj：
...
Oracle索引 -
shaier：
讲的很不错啊！
SERVICE_NAME, SID和schema区别 -
echohfut：
好久没有关注了。但是取下来的代码怎么导入Eclipse呢？
liferay笔记 -
webee：
已经有ide了！命令都可以不要了！
liferay笔记
文章列表
1. Cost Estimationg process
input:
Scope Statement
WBS
WBS Dictionary
Project Management Plan
Organization Process Assets
Enterprise Environmental Factors
tools:
Bottom-up estimating
Analogous estimating
Project management software
Parametric estimating
Determine Resource Cost Rates
Ven ...
- 2009-02-09 07:42
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Schedule Development Process
It is the core of time management.
it's the process where you put it all together.
input: Resource Calendar/Network Diagram/Activity List/Activity Attributes/Activity Duration Estimates /Activity Resource Requirements/Project Management Plan/Organizational Process Ass ...
- 2009-02-09 07:41
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Time Management
Time Management is all about breaking the work down into activities, so you can put them in order and come up with estimates for each of them.
1. Activity Definition process
divide the work package(from WBS) into activities that can be estimated.
tools and techniques: Decomposiit ...
- 2009-02-09 07:39
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Scope management means figuring out what's out of scope, not just what's part of scope.
five scope management processes:
1. scope planning
output: scope management plan
2. scope definition
output:scope statement
scope definition tools&techniques:stakeholder analysis,product ayalysis,alter ...
- 2009-02-09 07:38
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PMBOK(Project Management Body of Knowledge)PMBOK Guide divides into 44 processes that fall into 5 process groups.
5 process groups are:
Initiating: Develop Project Charter,Develop Preliminary Scope Statement
Plannig:Develop Project Management Plan,Risk Identification,Quality Planning,Activity Dura ...
- 2009-02-09 07:36
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SOLID
1. SRP
A Single Responsibility Principle
A class should have one, and only one, reason to change.
2. OCP
A module should be open for extension but closed for modification.
polymorphism is a way to implement it.
Q: what's the difference between static polymorphism and dynamic p ...
现有一个遗留系统中，用到了很多多线程。其中等待机制是这么做的:1. 主线程在需要等待的时候，先开启一个等待线程。初始化时预定一个时间。等待线程启动后立刻wait()/wait(nTime).2. 主线程 join 等待线程3. 外部事件到达时，interrupt 等待线程。E.g. in a listener or update method4. 主线程继续执行下去 这种方式利用了InterruptedException控制业务逻辑，除了这个缺点外不知还有没有别的弊端？
RMI provides the solution of communication between Java processes. For building a RMI Server/Client Application, below steps are considered:1. define the Remote interfaces extends from java.rmi.Remote these interfaces will also be provided to client. note: all remote interfaces throw java.rmi.Rem ...
#install ldap1. install BerkeleyDB.4.62. add /usr/local/BerkeleyDB.4.6/lib to /etc/ld.so.conf, then execute ldconfig3. env CPPFLAGS="-I/usr/local/BerkeleyDB.4.6/include" LDFLAGS="-L/usr/local/BerkeleyDB.4.6/lib" ./configure --prefix /usr/local/openldap4. make depend5. make6. make ...
异步log to file1. 启动一个多线程，维护一个List列表。List中存放的是需要log的字符串。早期用Vector来考虑同步的问题，甚至可以包装Vector。加入wait/notify机制。2. 主程序启动时打开文件，主程序结束时关闭文件。其他还有异常，rotate file时也需要关闭文件。 // Open the file output stream logOutputStream = new FileOutputStream(this.fileName); &nbs
执行java程序时传入的系统参数可以通过以下方式在程序中获取：java -D参数1＝值1 java程序名 Properties props = new Properties(System.getProperties()); String outputMode = props.getProperty("参数1");
SessionJob 一定要声明在SessionScheduler 类外面。 如果用作SessionScheduler的内部类会产生莫名其妙的错误。
应用observer 模式的一个好处是，处理定时触发的业务逻辑可以分散放在各个模块内部。
SessionScheduler 中 jobToBeExecuted 是回调的逻辑。这里通过Observer 模式通知到具体的业务模块去处理。