14 Oct
2015
14 Oct
'15
1:44 a.m.
Hi Debajit,
On 14 Oct 2015 at 00:17:49, Debajit Adhikary
(debajit@debajit.com(mailto:debajit@debajit.com)) wrote:
I created an XWiki component which is available as a
jar file.
I have a ScriptService class for the component too:
----
@Role
public interface SearchClient
{
String search();
}
----
@Component
@Singleton
public class InternalSearchClient implements SearchClient
{
public String search()
{
return "test search results";
}
}
----
@Component
@Named("internalSearch")
@Singleton
public class InternalSearchScriptService implements ScriptService
{
@Inject
private InternalSearchClient searchClient;
public String search()
{
return this.searchClient.search();
}
}
----
I've added all the above files into their own jar with a components.txt
file:
Where have you put this file? in META-INF? You can do a "jar tvf” to verify that it’s
present at the right location in your generated JAR.
com.mycompany.wiki.search.InternalSearchClient
com.mycompany.wiki.search.InternalSearchScriptService
and in my Wiki's pom.xml, I have the following:
org.xwiki.commons
xwiki-commons-script
${commons.version}
Now from my Wiki page, when I do the following:
{{groovy}}
println(services.internalSearch.search())
{{/groovy}}
I get an error message saying "java.lang.NullPointerException: Cannot
invoke method search() on null object”
Try:
println services
println services.internalSearch
Also have you deloyed this JAR in WEB-INF/lib?
Otherwise, looks good!
Thanks
-Vincent
What am I doing wrong here?
(I followed the directions in
http://platform.xwiki.org/xwiki/bin/view/DevGuide/WritingComponents — have
these directions changed, and/or is there anything else I need to do? )