Example usage for org.apache.solr.search PostFilter getFilterCollector

Introduction

In this page you can find the example usage for org.apache.solr.search PostFilter getFilterCollector.

Prototype

public DelegatingCollector getFilterCollector(IndexSearcher searcher);

Source Link

Document

Returns a DelegatingCollector to be run after the main query and all of its filters, but before any sorting or grouping collectors

Usage

From source file:org.alfresco.solr.query.PostFilterQuery.java

License:Open Source License

public DelegatingCollector getFilterCollector(IndexSearcher searcher) {
    List<PostFilter> postFilters = new ArrayList<PostFilter>();
    getPostFilters(query, postFilters);/*from   w  ww  .  ja  va 2  s.co  m*/

    Collections.sort(postFilters, new PostFilterComp());

    List<DelegatingCollector> delegatingCollectors = new ArrayList<DelegatingCollector>();
    for (PostFilter postFilter : postFilters) {
        DelegatingCollector delegatingCollector = postFilter.getFilterCollector(searcher);
        if (!(delegatingCollector instanceof AllAccessCollector)) {
            delegatingCollectors.add(delegatingCollector);
        }
    }

    if (delegatingCollectors.size() == 0) {
        return new AllAccessCollector();
    } else if (delegatingCollectors.size() == 1) {
        return delegatingCollectors.get(0);
    } else {
        return new WrapperCollector(delegatingCollectors);
    }
}

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