Examples of org.apache.lucene.queryparser.ext.Extensions

org.apache.lucene.queryParser.ext.Extensions

The {@link Extensions} class represents an extension mapping to associate{@link ParserExtension} instances with extension keys. An extension key is astring encoded into a Lucene standard query parser field symbol recognized by {@link ExtendableQueryParser}. The query parser passes each extension field token to {@link #splitExtensionField(String,String)} to separate theextension key from the field identifier.

In addition to the key to extension mapping this class also defines the field name overloading scheme. {@link ExtendableQueryParser} uses the givenextension to split the actual field name and extension key by calling {@link #splitExtensionField(String,String)}. To change the order or the key / field name encoding scheme users can subclass {@link Extensions} toimplement their own. @see ExtendableQueryParser @see ParserExtension

    };
    this.index = new RAMDirectory();
    this.writer = new IndexWriter(this.index, new IndexWriterConfig(
        Version.LUCENE_36, this.analyzer));
    this.translator = new DocumentTranslator();
    Extensions ext = new Extensions('.');
    ext.add("near", new NearParserExtension());
    ext.add("erlang", new ErlangParserExtension(this.translator));
    ext.add("redis", new RedisParserExtension());
    this.extensions = ext;
    try {
      add(this.translator.convert(new OtpErlangList(new OtpErlangList(
          new OtpErlangTuple(new OtpErlangObject[] {
              new OtpErlangAtom("to"),

Examples of org.apache.lucene.queryparser.ext.Extensions

Related Classes of org.apache.lucene.queryparser.ext.Extensions