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https://issues.apache.org/jira/browse/SOLR-1393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621270#comment-13621270
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Vadim Kirilchuk commented on SOLR-1393:
---------------------------------------
AFAIK apache CXF has similar thing for configuring Interceptors.
http://cxf.apache.org/javadoc/latest/org/apache/cxf/phase/PhaseInterceptorChain.html
They have class PhaseInterceptorChain.java, where they call
{code}
public void add(Collection<Interceptor<? extends Message>> newhandlers) {
add(newhandlers, false);
}
{code}
actually they cast newhandlers to PhaseInterceptor later.
And if you look at
http://cxf.apache.org/javadoc/latest/org/apache/cxf/phase/PhaseInterceptor.html
you will see getBefore() and getAfter() methods exactly like you want.
You also can find a source code of PhaseInterceptorChain and check method
#insertInterceptor(...) which contains tricky inserting logic. Actually they
have a little bit more complex logic then just before\after as they also have a
notion of Phase for each interceptor.
Anyway, wdyt about making things like so?
Another question is how one should configure such components ordering - through
xml, or exactly like in CXF - hardcoded in the components:
{code}
public class SoapActionInInterceptor extends AbstractSoapInterceptor {
public SoapActionInInterceptor() {
super(Phase.READ);
addAfter(ReadHeadersInterceptor.class.getName());
addAfter(EndpointSelectionInterceptor.class.getName());
}
//...
}
{code}
> Allow more control over SearchComponents ordering in SearchHandler
> ------------------------------------------------------------------
>
> Key: SOLR-1393
> URL: https://issues.apache.org/jira/browse/SOLR-1393
> Project: Solr
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Priority: Minor
> Labels: newdev
> Fix For: 4.3
>
>
> It would be useful to be able to add the notion of before/after when
> declaring search components. Currently, you can either explicitly declare
> all components or insert at the beginning or end. It would be nice to be
> able to say: this new component comes after the Query component without
> having to declare all the components.
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