externalizerMap.put(ExternalizerIds.LUCENE_SORT_FIELD, new LuceneSortFieldExternalizer());
externalizerMap.put(ExternalizerIds.CLUSTERED_QUERY_TOPDOCS, new ClusteredTopDocsExternalizer());
externalizerMap.put(ExternalizerIds.LUCENE_TOPDOCS, new LuceneTopDocsExternalizer());
externalizerMap.put(ExternalizerIds.LUCENE_FIELD_SCORE_DOC, new LuceneFieldDocExternalizer());
externalizerMap.put(ExternalizerIds.LUCENE_SCORE_DOC, new LuceneScoreDocExternalizer());
externalizerMap.put(ExternalizerIds.LUCENE_TOPFIELDDOCS, new LuceneTopFieldDocsExternalizer());
}