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2009/09/29
NHibernate for .NET
nHibernate Explained by example
2009/09/25
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
2009/09/14
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"
2009/09/13
Telerik Reporting– Quick Start (Part 2)
Telerik Reporting– Quick Start (Part 1)
Logging Services for .net - log4net
RandomAccessFile Quick Start
2009/07/21
Rule Engine: Drools .Net
2009/06/23
GridBagLayout Quick Start
2009/06/04
2009/06/03
A Short Java Socket Tutorial
2009/05/27
和四種主管溝通的小秘訣
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
2009/04/16
ORA-00932: inconsistent datatypes: expected - got CLOB
ORA-00932: inconsistent datatypes: expected - got CLOB
This error message result from Clob limitation:
- 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.
- 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
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/
2009/04/10
2009/04/09
2009/04/07
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
http://pmd.sourceforge.net/
2009/04/06
Utilize Jericho HTML Parser to Resolve NCR Problem
- What is NCR (Numeric Character Reference) ?
- Scenario Description
- Problem (XML with NCR)
- Resolution Process
- Result (NCR had been decoded)
http://www.slideshare.net/junyuo/utilize-jericho-html-parser-to-resolve-ncr-problem
2009/04/02
2009/02/20
Problems running dot: exit code=-1, command='dot'
Problems running dot: exit code=-1, command='dot', arguments='"classcom_1_1htc_1_1hr_1_1tree_1_1_department_table_bean_50f82c9386b01669779a1524b380b355_cgraph.dot" -Tpng -o "classcom_1_1htc_1_1hr_1_1tree_1_1_department_table_bean_50f82c9386b01669779a1524b380b355_cgraph.png"'
I spent lots of time to resolve this odd issue, and found out its result from the wrong GraphViz version. I cannot use the latest version. As I tried graphviz-2.12.exe this version, all problems were gone. You can go to here to download this verion: http://www.graphviz.org/pub/graphviz/stable/windows/
Here is class hierarchy:
Here is call graph:
2009/02/18
Applied Apache Trinidad to show organization chart
Web Container: Glassfish
Demo
1. enter personnel request application form page
2. launch popup window to show the organization chart
3. return the selected department back to original page
sequence diagram
trinidad page -- caller page
trinidad page -- popup window
PersonnelRequestController
DepartmentTableBean
you can also check the developer guide for futher information: http://myfaces.apache.org/trinidad/devguide/tree.html
2009/02/17
java.sql.SQLException: OALL8 is in an inconsistent state
Web Container: glassfish
Database: Oracle 10g
Scenario: As I execute some functions, then it will get this error message
[#|2009-02-03T11:22:52.620+0800|INFO|sun-appserver9.1|javax.enterprise.system.stream.out|_ThreadID=15;_ThreadName=httpSSLWorkerThread-8080-1;|[TopLink Warning]: 2009.02.03 11:22:52.620--UnitOfWork(2726974)--Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0.1 (Build b04-fcs (04/11/2008))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: OALL8 is in an inconsistent state
Error Code: 17447
Call: SELECT ID, JOB_LOC_ENG_DESC, JOB_LOC_INFORM_ENG_DESC, DOMAIN, IS_JOB_LOC, CREATETIMESTAMP, IS_INTERVIEW_LOC, JOB_LOC_NATIVE_DESC, IS_ONBOARD_LOC, JOB_LOC_INFORM_NATIVE_DESC, JOB_LOCATION_CODE, MODIFYTIMESTAMP, MODIFIER, CREATOR FROM RSDB.JOB_LOCATION WHERE (ID = ?)
bind => [22612]
Query: ReadObjectQuery(com.htc.hr.entity.JobLocation)
|#]
Root Cause: I put collection object into hashCode function, it's the root cause to cause this error. Just remove it.
Set up a simple way to backup testing server database
1. write an ant build file to generate dump file and copy to remote machine (on a daily basis)
2. create a batch file to execute my build script
3. add this batch file to scheduler service
4. result
[local machine]
[remote machine]
2009/01/14
NamedQuery of name: jobDutyJobTitle.findByJobDuty not found.
And I called this name query in my DAO class:
But as I ran my web application, it got this kind of error message (no matter the name of query or the sql statement is corrent):
java.lang.IllegalArgumentException: NamedQuery of name: jobDutyJobTitle.findByJobDuty not found. at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.getDatabaseQuery(EJBQueryImpl.java:422) at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.setAsSQLReadQuery(EJBQueryImpl.java:136) at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.getResultList(EJBQueryImpl.java:464) at com.htc.hr.dao.JobDutyJobTitleDAO.findByJobDuty(JobDutyJobTitleDAO.java:41) at com.htc.hr.controller.JobDutyController.showJobDutyJobTitle(JobDutyController.java:47)
The root cause is: I forgot to add this enity class declaration into persistence.xml
2009/01/06
An Introduction To JBoss RichFaces | Eclipse Zone
If it's your first time to study JBoss RichFaces, here is a good place to start.
2009/01/04
2009/01/01
2008/12/21
2008/12/14
2008/12/13
2008/12/11
Troubleshooting on Tomahawk JSCook Menu
Check Notes and Known issues.
I had faced this issue Place of Menu tag in relation to Forms:
Menus must be placed inside forms starting with Tomahawk 1.1.3.
With regard to how to do configuration in web.xml, please check http://myfaces.apache.org/tomahawk/extensionsFilter.html
2008/12/10
java.lang.IllegalStateException: ExtensionsFilter not correctly configured. JSF mapping missing. JSF pages not covered.
1 2 3 4 5 6 7 | java.lang.IllegalStateException: ExtensionsFilter not correctly configured. JSF mapping missing. JSF pages not covered. Please see: http://myfaces.apache.org/tomahawk/extensionsFilter.html at org.apache.myfaces.renderkit.html.util.AddResourceFactory.throwExtensionsFilterMissing(AddResourceFactory.java:389) at org.apache.myfaces.renderkit.html.util.AddResourceFactory.checkEnvironment(AddResourceFactory.java:349) at org.apache.myfaces.renderkit.html.util.AddResourceFactory.getInstance(AddResourceFactory.java:279) at org.apache.myfaces.custom.navmenu.jscookmenu.HtmlJSCookMenuRenderer.addResourcesToHeader(HtmlJSCookMenuRenderer.java:404) at org.apache.myfaces.custom.navmenu.jscookmenu.HtmlJSCookMenuRenderer.encodeBegin(HtmlJSCookMenuRenderer.java:363) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:788) |
Solution
If you are using servlets 2.4, you cannot do a jsp:forward or request.getDispatcher().forward to any page, because the extensions filter is not executed. Instead you may want to try with a response.sendRedirect(). Therefore, I need to modify
2008/12/05
2008/11/23
Integrate Seam with Apache Trinidad, Facelets and JPA
- Seam
- Seam + JSF
- Seam Annotation in JSF Implementation
- Seam + JPA (No need to change)
- Environment Configuration
- Use Case
- Page Flow
- Class Diagram
- Sequence Diagram
http://www.slideshare.net/junyuo/integrate-seam-with-apache-trinidad-facelets-and-jpa-presentation
2008/11/06
2008/11/05
Re: [jasperreports-questions] IS_IGNORE_PAGINATION parameter
I had faced the same problem regarding exprting report to pdf in browser but bring blank page.
The root cause is the IS_IGNORE_PAGINATION had been set into FALSE, so it cannot diaplay correctly.
2008/10/29
2008/10/28
Highlighting Odd and Even Rows in JasperReports - Brian Burridge
In order to highlight odd or even rows with a background color, in JasperReports, first create a rectangle element with a background of your color choice, and send it to the background (in JasperAssistant, right click on the rectangle, choose Arrange and then Send to Back). Second, use the following expression to set when the element should appear, by placing the expression in the Print When Expression field of the rectangle element. Where the $V{PAGE_COUNT} appears, you can use that, to base it on the row number on the page, or use $V{REPORT_COUNT} to base it on the row within the report. Also, if you are using a group, you can use $V{groupname_COUNT} where groupname is replaced with the name of your group. The expression below will then test the row number within the Page, Report, or Group (whichever you selected) and if its divisible by 2, it will display the rectangle element with the background color.
2008/10/25
CAS (Central Authentication Service) Enhancement
- Why SSO (Single-Sign On)?
- Central Authentication Service (CAS)
- CAS Installation
- As-Is and To-be Process
- Modification Process
http://www.slideshare.net/junyuo/cas-enhancement-presentation
2008/10/21
Facelets with Trinidad - Myfaces Wiki
This article is used to explain how to integrate Facelets with Trinidad.
2008/10/02
CAS Demo Application Installation
including troubleshooting (CAS Demo App. cannot be running correctly)
2008/09/20
Joda Time - Java date and time API - Home
Joda-Time provides a quality replacement for the Java date and time classes. The design allows for multiple calendar systems, while still providing a simple API. The 'default' calendar is the ISO8601 standard which is used by XML. The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic systems are also included, and we welcome further additions. Supporting classes include time zone, duration, format and parsing.
2008/09/19
Spring + JPA + TOPLink + DAO Step by Step
- Spring + JPA + TopLink + DAO Architecture
- Spring/Persistence Config File
- Implement DAO – CRUD
- Implement ServiceBean
- Implement Client Side Code
http://www.slideshare.net/junyuo/spring-toplinkjap-dao-step-by-step-presentation
2008/09/03
Spring + JPA + DAO Step by Step
- Spring + JPA + DAO Architecture
- Spring Config File
- Implement DAO – CRUD
- Implement ServiceBean
- Implement Client Side Code
2008/08/31
Java Persistence API (JPA) Step By Step
- What is Java Persistence API
- Primary Features
- Five Steps to Implement JPA
- Download Hibernate Components
- Prepare Database, and Download JDBC Driver
- Implemented POJO entities and add annotations
- Persistence.xml
- Implemented client side code via EntityManager
http://www.slideshare.net/junyuo/java-persistence-api-jpa-step-by-step-presentation
2008/08/20
2008/06/29
Applied MyEclipse and JUnit to do Hibernate Code Gen and Testing
• Code Gen Process
• Generate DAO for the four tables
• Artifacts
• Spring Configuration File
• Apply JUnit to do DAOs Test
• JUnit Framework
• How to Test with JUnit?
• Simplified Workflow of Applying JUnit
• Testing Process
• Generate Unit Test Result via Ant
http://www.slideshare.net/junyuo/applied-myeclipse-and-junit-to-do-hibernate-code-gen-and-testing/
2008/06/20
Doxygen – Source Code Documentation Generator Tool
- What is Doxygen
- Doxygen Features
- Getting Start
- Check the result
http://www.slideshare.net/junyuo/doxygen-source-code-documentation-generator-tool/
2008/06/15
My First Web Services Example - XFire, Spring, SoapUI
- Setup Web Services Environment
- Setup Web Services IDE Environment
- Install and Validation Process
- Download Extra Jar Files
- Buzzwords
- Web Services Architecture
- Scenario
- Deployment descriptors of the Web application
- Testing Procedure
2008/04/18
2008/04/10
2008/04/03
Subclipse - the Subversion plugin for Eclipse
- What is Subclipse ?
- Subclipse Installation
- Import Source Code From SubVersion
- Troubleshooting
http://junyuo.googlepages.com/Subclipse-TheSubversionPluginForEcli.rar
2008/03/02
2008/02/21
2008/01/23
2007/12/21
Ports and protocol which had been used by Windchill
JavaRMIServlet: 5001~5010
ProjectLink Meeting port: 5620~5660
Therefore, network administrator should open these ports.
2007/12/13
Check Windchill failed queue how-to
1. Go to Site tag and click Utils
2. Go to Queue Manager page
3. Choose failed queue, ex. WfUserWorkQueue
4. pickup one queue entry which had been marked as server, and select 'show' option in dropdown list
5. check error message, ex. wt.workflow.robots.WfInternalMethod:135596
6. used sql statement to figure out which object cause this failed queue.
select t2.businessobjreference, t2.name from WfInternalMethod t1, wfprocess t2 where t1.ida2a2 = 135596 and t1.ida3parentprocessref = t2.ida2a2
7. we can get information from step6.
businessobjreference is VR:wt.doc.WTDocument:136558
name is TPV - Release Workflow_0000000046 - Electronic Component Sample Request Operation Quide A
8. go to search page: apply 0000000046 to number to be our search criteria,
then we can check the related workflow to check what's wrong
2007/12/05
Utilized JAXB to generate POJOs automatically -- Green Integration Part II
Agenda
- Scenario
- JAXB (Java Architecture for XML Binding)
- Implementation steps in Green Integration
- JAXB Usage
- JAXB Limitations
2007/11/28
Follow-up procedure, after installed partslink
1. Make sure web.xml had define ConfigFile location
1 2 3 4 | <context-param> <param-name>ConfigFile</param-name> <param-value>D:/ptc/Windchill/partslink/conf/main.properties</param-value> </context-param> |
3. login to database, execute make_schema_ora.sql script
SQL> @make_schema_ora.sql
4. Load ACL, execute command: windchill wt.load.WindchillLoader -Application=Windchill.PartsLink
Windchill Quick Backup
1. backup applicationa & configuration, i.e. D:\PTC\Windchill8\codebase
2. backup database, i.e. execute command: exp pdm8/pdm8@WINDDEV file=D:\tmp\database\WINDDEV.dmp log=D:\tmp\database\WINDDEV.log
If any problem occurred, just overwrite codebase and do database import to do system recovery
2007/11/26
Windchill Change Password
Many customers will complain about this.
Now, Windchill 8 M040 had provided.
But default, M040 disabled change password function, we need to turn it on.
Process:
1. define in site.xconf
1 2 3 | <property name="wt.org.services.userPasswordChangeEnabled" overridable="true" targetfile="codebase/wt.properties" value="true"> |
2. execute xconfmanager -p in windchill shell
3. restart tomcat, method server. And do not forgot to clean tomcat cache.
2007/11/23
OraDoclet - Database Documentation Generator
The purpose of OraDoclet is generation of the detailed database documentation
resembling the JavaDoc style. It is a custom doclet that functions either with the
JavaDoc tool or as a standalone Java application. The documentation generated
has a form of static html files and describes all objects in the given Oracle
database schema.
http://oradoclet.sourceforge.net/
OraDoclet - Database Documentation Generator
2007/11/22
2007/11/20
Java 2 Software Development Kit (J2SE SDK) - the new jre isn't working
I have instaled the new j2se development kit 5.0 and jre5.0, but my browser cannot open any applet and Sun Java console. The error is ---- " The Java Runtime Environment cannot be loaded from <\bin\server\jvm.dll> ???!!!
Solution
In your "Documents and Settings\username\Application Data" folder you'll probably find a folder named "Sun". Delete that folder (or rename it).
reference: http://forum.java.sun.com/thread.jspa?threadID=567821&forumID=17
2007/10/29
2006/09/27
[JavaScript] How to do trim() in JavaScript
<body onload="test()">
<script>
String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };
function test() {
var str = " a ";
alert("Original string: '" + str + "'");
str = str.trim();
alert("Incompletely stripped string: '" + str + "'");
}
</script>
reference
http://www.bigbold.com/snippets/posts/show/701
[JavaScript] How to do trim() in JavaScript
<body onload="test()">
<script>
String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };
function test() {
var str = " a ";
alert("Original string: '" + str + "'");
str = str.trim();
alert("Incompletely stripped string: '" + str + "'");
}
</script>
2006/09/08
[Windchill] How to generate mData
1. open rose
2. Tools --> Windchill --> System Generation
3. Click OK
Troubleshoot
It may show generation refuse error in the progress of system generation
Error: wt.templateutil.processor.DefaultTemplateProcessor is not Extendable, so
Solution
1. Open user.properties (under
2. add one attribute wihch named
After you add them to user.properties, you can see this kind of warning message, it means you had successfully finished system generation.
Warning: wt.templateutil.processor.DefaultTemplateProcessor is not Extendable, but is being allowed as a backward compatible override
2006/08/28
2006/08/27
[Mail] commons-mail 亂碼問題
呼叫setCharset此方法,設定編碼方式為UTF-8
public void setCharset(java.lang.String newCharset)http://jakarta.apache.org/commons/email/api-release/org/apache/commons/mail/Email.html#setCharset(java.lang.String)
[常見問題2]sent出去的mail的中文內文便成亂碼
呼叫setContent此方法,第一個參數給予訊息內容,第二個參數給予conent type,例如text/plain;charset=UTF-8
public void setContent(java.lang.Object aObject,http://jakarta.apache.org/commons/email/api-release/org/apache/commons/mail/Email.html#setContent(java.lang.Object,%20java.lang.String)
java.lang.String aContentType)
[常見問題3]sent出去的附件中文檔名變成亂碼
在EmailAttachment的物件中的setName方法中,使用MimeUtility的encodeText方法
attachment.setName(MimeUtility.encodeText("中文訊息", "UTF-8", null));
http://java.sun.com/products/javamail/javadocs/javax/mail/internet/MimeUtility.html
2006/08/15
2006/08/11
[InfoEngine] Remember to get newOid as you want to update-object
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | <ie:unit> <ie:webject name="CheckOut-Objects" type="ACT"> <ie:param name="INSTANCE" data="windchill"/> <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/> <ie:param name="OBJECT_REF" data="<%=objRef%>"/> <ie:param name="GROUP_OUT" data="checkoutDoc"/> </ie:webject> <% Group checkoutDoc = getGroup("checkoutDoc");; String newOid = (String)checkoutDoc.getAttributeValue(0, "obid"); System.out.println("Checkout Document ends... Update begin, new id"); System.out.println(newOid); %> <ie:failure> <%System.out.println("no document had been CheckOut");%> </ie:failure> <ie:success> <% System.out.println (getGroup("checkoutDoc").getElementCount() + " document(s) had been CheckOut"); %> </ie:success> </ie:unit> <ie:unit> <ie:webject name="Update-Objects" type="ACT"> <ie:param name="INSTANCE" data="windchill"/> <ie:param name="GROUP_OUT" data="updateDoc"/> <ie:param name="ATTRIBUTE" data="IBA|Revise_By_Drawing"/> <ie:param name="OBJECT_REF" data="<%=newOid%>"/> <ie:param name="TYPE" data="wt.doc.WTDocument"/> <ie:param name="FIELD" data="IBA|Revise_By_Drawing='N'"/> <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/> </ie:webject> <ie:failure> <%System.out.println("no document had been update");%> </ie:failure> <ie:success> <% System.out.println (getGroup("updateDoc").getElementCount() + " document(s) had been updated"); %> </ie:success> </ie:unit> <ie:unit> <ie:webject name="CheckIn-Objects" type="ACT"> <ie:param name="INSTANCE" data="com.ptc.vm-ase.Windchill"/> <ie:param name="ATTRIBUTE" data="IBA|Revise_By_Drawing"/> <ie:param name="GROUP_OUT" data="checkInDoc"/> <ie:param name="AUTHORIZATION" data="${@server[]authorization[0]}"/> <ie:param name="TYPE" data="wt.doc.WTDocument"/> <ie:param name="OBJECT_REF" data="<%=newOid%>"/> </ie:webject> <ie:failure> <%System.out.println("no document had been checked-in");%> </ie:failure> <ie:success> <% System.out.println (getGroup("checkInDoc").getElementCount() + " document(s) had been checked-in"); %> </ie:success> </ie:unit> |
[InfoEngine] Where to find the compiled InfoEngine Task
<Windchill_HOME>\tasks\codebase\com\infoengine\compiledTasks