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1. Re: Tutorial: Handling images in your Seam application
pmuir Oct 24, 2007 11:47 AM (in response to enrokuta)Please link to these off the Seam wiki.
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2. Re: Tutorial: Handling images in your Seam application
amitev Oct 24, 2007 12:34 PM (in response to enrokuta)Great!
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3. Re: Tutorial: Handling images in your Seam application
modoc Oct 24, 2007 7:59 PM (in response to enrokuta)Very cool! Thanks!
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4. Re: Tutorial: Handling images in your Seam application
damianharvey Oct 25, 2007 4:22 AM (in response to enrokuta)Some great tips in there. Already put some to good use.
Thanks!
Damian. -
5. Re: Tutorial: Handling images in your Seam application
damianharvey Oct 25, 2007 6:18 AM (in response to enrokuta)I had an error "Wrong column type....expected blob" when I used the mysql mediumblob datatype. This post http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4046291#4046291 has a solution that works for me. Eg:
@Lob @Basic(fetch=FetchType.LAZY) @Column(name = "data", nullable = false, columnDefinition="mediumblob") private byte[] data;
Cheers,
Damian. -
6. Re: Tutorial: Handling images in your Seam application
amitev Oct 25, 2007 7:50 AM (in response to enrokuta)Did someone add this in the wiki?
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7. Re: Tutorial: Handling images in your Seam application
enrokuta Oct 26, 2007 10:05 AM (in response to enrokuta)Added to Seam wiki: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossSeam
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8. Re: Tutorial: Handling images in your Seam application
jamesjmp Oct 26, 2007 10:17 AM (in response to enrokuta)good job !! congratulations!
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9. Re: Tutorial: Handling images in your Seam application
syzork Nov 1, 2007 8:13 AM (in response to enrokuta)can someone post the source of ArtworkServlet.java to see what am i doing wrong?
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10. Re: Tutorial: Handling images in your Seam application
enrokuta Nov 1, 2007 12:32 PM (in response to enrokuta)What error message do you get?
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11. Re: Tutorial: Handling images in your Seam application
syzork Nov 1, 2007 1:13 PM (in response to enrokuta)when i call something like em.query(...) returns an exception:
16:00:30,890 ERROR [STDERR] java.lang.NullPointerException 16:00:30,890 ERROR [STDERR] at com.flavio.b.ArtworkServlet.doGet(ArtworkServlet.java:59) 16:00:30,890 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) 16:00:30,890 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 16:00:30,890 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 16:00:30,890 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) 16:00:31,046 ERROR [STDERR] at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,046 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) 16:00:31,046 ERROR [STDERR] at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,125 ERROR [STDERR] at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) 16:00:31,125 ERROR [STDERR] at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) 16:00:31,125 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 16:00:31,625 ERROR [STDERR] at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 16:00:31,625 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 16:00:31,625 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 16:00:32,125 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 16:00:32,125 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) 16:00:32,125 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 16:00:32,125 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 16:00:32,125 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) 16:00:32,125 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
i tried comment the line:
EntityManager em = (EntityManager) Component.getInstance("entityManager");
and inject entityManager by hand with @In:
@In(create = true, value = "entityManager")
private EntityManager em; -
12. Re: Tutorial: Handling images in your Seam application
enrokuta Nov 1, 2007 1:36 PM (in response to enrokuta)Did you define the web:context-filter in components.xml? Can you post some code around line 59?
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13. Re: Tutorial: Handling images in your Seam application
syzork Nov 1, 2007 1:52 PM (in response to enrokuta)<components xmlns="http://jboss.com/products/seam/components" xmlns:core="http://jboss.com/products/seam/core" xmlns:persistence="http://jboss.com/products/seam/persistence" xmlns:web="http://jboss.com/products/seam/web" xmlns:drools="http://jboss.com/products/seam/drools" xmlns:bpm="http://jboss.com/products/seam/bpm" xmlns:security="http://jboss.com/products/seam/security" xmlns:mail="http://jboss.com/products/seam/mail" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation= "http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.0.xsd http://jboss.com/products/seam/web http://jboss.com/products/seam/web-2.0.xsd http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.0.xsd http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.0.xsd http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.0.xsd http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.0.xsd" > ... <web:context-filter url-pattern="/b/*" /> ... </components>
ArtworkServlet.javaString query = "from gs_artwork_info a where a.fileName = :filename"; System.out.println(this.em.toString()); artworkInfo = (ArtworkInfo) this.em.createQuery(query).setParameter("filename",fileName).getSingleResult();
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14. Re: Tutorial: Handling images in your Seam application
enrokuta Nov 1, 2007 2:19 PM (in response to enrokuta)You should be defining the EntityManager as a local variable of the doGet method rather than having it as a member.
Seam injection cannot be applied to servlets. You have to use Component.getInstance instead.