Examples of org.apache.lucene.analysis.miscellaneous.PerFieldAnalyzerWrapper

Package org.apache.lucene.analysis.miscellaneous

Examples of org.apache.lucene.analysis.miscellaneous.PerFieldAnalyzerWrapper

org.apache.lucene.analysis.miscellaneous.PerFieldAnalyzerWrapper
This analyzer is used to facilitate scenarios where different fields require different analysis techniques. Use the Map argument in {@link #PerFieldAnalyzerWrapper(Analyzer,java.util.Map)}to add non-default analyzers for fields.
Example usage:
```
 {@code Map analyzerPerField = new HashMap(); analyzerPerField.put("firstname", new KeywordAnalyzer()); analyzerPerField.put("lastname", new KeywordAnalyzer()); PerFieldAnalyzerWrapper aWrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(version), analyzerPerField);}
```
In this example, StandardAnalyzer will be used for all fields except "firstname" and "lastname", for which KeywordAnalyzer will be used.
A PerFieldAnalyzerWrapper can be used like any other analyzer, for both indexing and query parsing.

     */
    @SuppressWarnings("unchecked")
    private Analyzer createIndexingAnalyzer() {
        final Map fieldAnalyzers = new HashMap();
        fieldAnalyzers.put(Fields.DOCUMENT_KEY, new KeywordAnalyzer());
        return new PerFieldAnalyzerWrapper(new FieldAnalyzer(LuceneUtils.CURRENT_VERSION), fieldAnalyzers);
    }

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        productSearchFieldAnalyzer = new SearchFieldAnalyzer(LuceneUtils.CURRENT_VERSION);
        vendorSearchFieldAnalyzer = new SearchFieldAnalyzer(LuceneUtils.CURRENT_VERSION);
        fieldAnalyzers.put(Fields.PRODUCT, productSearchFieldAnalyzer);
        fieldAnalyzers.put(Fields.VENDOR, vendorSearchFieldAnalyzer);


        return new PerFieldAnalyzerWrapper(new FieldAnalyzer(LuceneUtils.CURRENT_VERSION), fieldAnalyzers);
    }

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        SearchFieldAnalyzer searchAnalyzerProduct = new SearchFieldAnalyzer(LuceneUtils.CURRENT_VERSION);
        SearchFieldAnalyzer searchAnalyzerVendor = new SearchFieldAnalyzer(LuceneUtils.CURRENT_VERSION);
        HashMap<String, Analyzer> map = new HashMap<String, Analyzer>();
        map.put(field1, searchAnalyzerProduct);
        map.put(field2, searchAnalyzerVendor);
        PerFieldAnalyzerWrapper wrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(LuceneUtils.CURRENT_VERSION), map);
        QueryParser parser = new QueryParser(LuceneUtils.CURRENT_VERSION, field1, wrapper);


        Query q = parser.parse(querystr);
        //System.out.println(q.toString());

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                    }


                });
            }
        }
        PerFieldAnalyzerWrapper wrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(CharArraySet.EMPTY_SET), mapping);


        Directory dir = new RAMDirectory();
        IndexWriterConfig conf = new IndexWriterConfig(wrapper);


        conf.setOpenMode(IndexWriterConfig.OpenMode.CREATE);

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