libxapian-java-doc 1.4.3-1 / usr / share / doc / xapian-bindings / java / examples / SimpleSearch.java

/**
 Copyright (c) 2003, Technology Concepts & Design, Inc.
 All rights reserved.

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 - Redistributions of source code must retain the above copyright notice, this list of conditions
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 - Redistributions in binary form must reproduce the above copyright notice, this list of conditions
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 endorse or promote products derived from this software without specific prior written permission.

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 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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package org.xapian.examples;

import org.xapian.*;

public class SimpleSearch {


    public static void main(String[] args) throws Exception {
        // ensure we have enough arguments
        if (args.length < 2) {
            usage();
            System.exit(0);
        }

        String dbpath = args[0];

        // turn the remaining command-line arguments into our query
	Query query = new Query(args[1]);
        for (int x = 2; x < args.length; x++) {
	    query = new Query(Query.OP_OR, query, new Query(args[x]));
        }

        // open the specified database
        Database db = new Database(dbpath);

        // and query the database
        Enquire enquire = new Enquire(db);
        enquire.setQuery(query);
        MSet matches = enquire.getMSet(0, 2500);    // get up to 2500 matching documents
        MSetIterator itr = matches.begin();

        System.err.println("Found " + matches.size() + " matching documents using " + query);
        while (itr.hasNext()) {
            int percent = itr.getPercent();
            long docID = itr.next();
            // TODO:  Make this more like a Java Iterator by returning some
            // kind of "MatchDescriptor" object
            Document doc = db.getDocument(docID);
            System.err.println(percent + "% [" + docID + "] " + doc.getValue(0));
        }
    }

    private static void usage() {
        System.err.println("Usage:");
        System.err.println("\tjava org.xapian.examples.SimpleSearch </path/to/database> <query>");
    }

}