!!! How to write a PageAppendHandler

What is a [PageAppendHandler|https://isci.informatik.uni-wuerzburg.de/javadoc/KnowWE/de/knowwe/core/append/PageAppendHandler.html]?

To write a PageAppendHandler you have to implement this interface:
%%prettify{{{
public interface PageAppendHandler {
	
	public String getDataToAppend(String topic, String web, KnowWEUserContext user);
	
	public boolean isPre();

}

}}}/%

The isPre() method should return whether the content should be rendered before the main page content. Otherwise it's appended.


!! Register new PageAppendHandler in a Module

To use a new PageAppendHandler within a module you have to pass an instance by overriding the getPageAppendHandlers()-method in your module:

%%prettify{{{
List<PageAppendHandler> getPageAppendHandlers();
}}}/%

%%tags
howto
%