Seam Fairies [relevance: 4.15]

2007-09-12

Fields within Jboss Seam are magically populated by Seam fairies

Don't try to work out how or why.. they just are

Jboss Seam PermGen space crash [relevance: 3.52]

2007-09-10

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:53)
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:393)
org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

java.lang.OutOfMemoryError: PermGen space

note The full stack trace of the root cause is available in the JBossWeb/2.0.0.GA logs.

--------------------------------------------------------------------------------

JBossWeb/2.0.0.GA

This can be rectified by modifying run.sh to include a MaxPermSize parameter for JVM memory allocation

# Execute the JVM in the background
add # Setup JBoss sepecific properties
JAVA_OPTS="-XX:MaxPermSize=128M -Dprogram.name=$PROGNAME $JAVA_OPTS"

or

"$JAVA" $JAVA_OPTS \
-XX:MaxPermSize="128M" -Djava.endorsed.dirs="$JBOSS_ENDORSED_DIRS" \
-classpath "$JBOSS_CLASSPATH" \
org.jboss.Main "$@" &

Setting up JBOSS Seam [relevance: 3]

2007-11-30

from a command prompt/shell within the jboss-seam directory type the following:

• [path...]\jboss-seam-2.0.0.GA>seam setup
  Buildfile: [path...]\jboss-seam-2.0.0.GA\seam-gen\build.xml
• init:
• setup:
• [echo] Welcome to seam-gen :-)
• [input] Enter your Java project workspace (the directory that contains your Seam projects) [c:/development/eclipse_w orkspace/] [[path...]/workspace/]
• [input] Enter your JBoss home directory [[path...]/jboss-seam-2.0.0.GA] [[path...]/jboss -seam-2.0.0.GA]
• [input] Enter the project name [systemadmin] [systemadmin]
• [echo] Accepted project name as: systemadmin
  [input] Select a RichFaces skin (not applicable if using ICEFaces) [blueSky] ([blueSky], classic, ruby, wine, deepMa rine, emeraldTown, sakura, DEFAULT)
• [input] Is this project deployed as an EAR (with EJB components) or a WAR (with no EJB support) [ear] ([ear], war, )
• [input] Enter the Java package name for your session beans [uk.co.iblocks.projectName.data] [uk.co.iblocks.projectName.data]
• [input] Enter the Java package name for your entity beans [uk.co.iblocks.projectName.data] [uk.co.iblocks.projectName.data]
• [input] Enter the Java package name for your test cases [uk.co.iblocks.projectName.test] [uk.co.iblocks.projectName.test]
• [input] What kind of database are you using? [mssql] (hsql, mysql, oracle, postgres, [mssql], db2, sybase, enterpri sedb, h2)
• [input] Enter the Hibernate dialect for your database [org.hibernate.dialect.SQLServerDialect] [org.hibernate.dialec t.SQLServerDialect]
• [input] Enter the filesystem path to the JDBC driver jar [[path...] \jtds-1.2.jar] [[path...]\jtds-1.2.jar]
• [input] Enter JDBC driver class for your database [net.sourceforge.jtds.jdbc.Driver] [net.sourceforge.jtds.jdbc.Driv er]
• [input] Enter the JDBC URL for your database [jdbc:jtds:sqlserver://dbserver:8080/projectName] [jdbc:jtds:sqlserver://dbserver:8080/projectName]
• [input] Enter database username [username] [username]
• [input] Enter database password [password] [password]
• [input] Enter the database schema name (it is OK to leave this blank) [databaseName] [databaseName]
• [input] Enter the database catalog name (it is OK to leave this blank) [databaseTable] [databaseTable]
• [input] Are you working with tables that already exist in the database? [y] ([y], n, )
• [input] Do you want to drop and recreate the database tables and data in import.sql each time you deploy? [n] (y, [ n], )
• [input] Enter your ICEfaces home directory (leave blank to omit ICEfaces) [] []
• [delete] Deleting: [path...]\jboss-seam-2.0.0.GA\seam-gen\build.properties
  [propertyfile] Creating new property file: [path...]\jboss-seam-2.0.0.GA\seam-gen\build.properties
  [echo] Installing JDBC driver jar to JBoss server
  [echo] Type 'seam create-project' to create the new project
• BUILD SUCCESSFUL
  Total time: 2 minutes 26 seconds

seam new-project

seam generate-entities

Tag Library Descriptor - TLD files for Java Editors [relevance: 2.92]

2007-12-04

seam back end code references [relevance: 1.74]

2007-11-23

@Name sets the front end reference point to the entity bean

@Name("userList")
public class UserList extends EntityQuery {

User user = new User();

public User getUser(){
return user;
}

}

Front end the references it via

#{userList.user}