nHibernate Explained by example

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nHibernate Explained by example

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NHibernate 常見問題

包含

• hbm.xmlNHibernate文件中版本号可能引起的问题.
• 在对照类中如果属性没有加virtual关键字
• 映射文件没有将属性设为＂嵌入的资源＂引起的错误．
• "Could not find the dialect in the configuration"异常
• "未能未能加载文件或程序集Castle.DynamicProxy2"的异常
  

http://zhangrh1008.spaces.live.com/blog/cns!A5242842A85F6A16!171.entry?sa=47445455

NHibernate.MappingException: No persister for: HelloNHibernate.vo.People

I am testing NHibnernate these days, but I get this kind of error message NHibernate.MappingException: No persister for: HelloNHibernate.vo.People

The cs name, package name are correct, but the console still report this error message.

Finally, I found out the root cause: all mapping files should be set Embedded Resource, then it can execture correctly.

right-click in XXX.hbm.xml->Properties->Build Action="Embedded Resource"

Telerik Reporting– Quick Start (Part 2)

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Telerik Reporting– Quick Start (Part 2)

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Telerik Reporting– Quick Start (Part 1)

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Telerik Reporting– Quick Start (Part 1)

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Quartz.NET - Enterprise Job Scheduler for .NET Platform

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Quartz.NET - Enterprise Job Scheduler for .NET Platform

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Logging Services for .net - log4net

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Logging Services for .net - log4net

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RandomAccessFile Quick Start

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RandomAccessFile Quick Start

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Rule Engine: Drools .Net

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Rule Engine: Drools .Net

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GridBagLayout Quick Start

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GridBagLayout Quick Start

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JPA Code Generation via MyEclipse

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JPA Code Generation via MyEclipse

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A Short Java Socket Tutorial

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A Short Java Socket Tutorial

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SchemaSpyGUI Quick Start

http://www.slideshare.net/junyuo/schemaspygui-quick-startppt

A Short Java RMI Tutorial

http://www.slideshare.net/junyuo/a-short-java-rmi-tutorial

和四種主管溝通的小秘訣

溝通秘訣1：駕馭型--搞定老虎主管
老虎型主管注重結果導向，他就事論事並且有冒險精神。而且老虎主管通常速度很快，與他溝通要直接說重點。

溝通秘訣2：表達型--孔雀主管
與孔雀主管可以多聊家常事務，先建立個人感情再談公事會更為順利，孔雀主管非常有創意，不喜歡太死板的教條。

溝通秘訣3：親和型--無尾熊主管
無尾熊主管重視團隊的和諧氣氛、不喜歡風險，與無尾熊主管溝通要溫和，並且給他多一點決策時間。

溝通秘訣4：分析型--貓頭鷹主管
貓頭鷹主管重視品質，給他的資料要精確、有邏輯。屬下工作要按照一定步驟，並且要注意細節要正確。

http://www.cw.com.tw/article/index.jsp?id=2910

可惜他沒提到無能型的

ORA-00932: inconsistent datatypes: expected - got CLOB

As I am doing data query with distinct syntax in select clause, I got this error message:
ORA-00932: inconsistent datatypes: expected - got CLOB

This error message result from Clob limitation:

1. CLOBs don't work like strings. You can't ask for the LENGTH of a CLOB column, for example. You can work around this with PL/SQL calls but it isn't much fun.
2. LOBs are not allowed in GROUP BY, ORDER BY, SELECT DISTINCT, aggregates and JOINS

Therefore, I re-designed my database schema. Save this CLOB column into another table.

ORA-01502 Oracle Index in Unusable State

As I execute sql statement to do search, it return this message unexpectedly:ORA-01502: index 'RSDB.RESUME_PK' or partition of such index is in unusable state

Solution: rebuild this index

ALTER INDEX RESUME_PK REBUILD

After I executed this rebuild action, it turned out to be normal.

Reference
[1] http://www.mydigitallife.info/2006/01/28/ora-01502-oracle-index-in-unusable-state/

Template method pattern example

http://www.slideshare.net/junyuo/template-method-pattern-example

Utilize Quartz to Implement Scheduling Service

Scenario


Implementation Process


http://www.slideshare.net/junyuo/utilize-quartz-to-implement-scheduling-service

PMD

PMD scans Java source code and looks for potential problems like:

• Possible bugs - empty try/catch/finally/switch statements
• Dead code - unused local variables, parameters and private methods
• Suboptimal code - wasteful String/StringBuffer usage
• Overcomplicated expressions - unnecessary if statements, for loops that could be while loops
• Duplicate code - copied/pasted code means copied/pasted bugs

It can be plug-in to Eclipse, NetBeans, etc.

http://pmd.sourceforge.net/