documentbuilder.java

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package jaoso.framework.core.search.lucene.builder;

import jaoso.framework.core.search.SearchUtil;
import jaoso.framework.core.search.Searchable;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;


/**
 * @author        Quake Wang
 * @since        2004-5-21
 * @version $Revision: 1.3 $
 *
 **/
public abstract class DocumentBuilder {

    //~ Methods ================================================================

    /**
     * create lucene document
     *
     * @param entity entity
     *
     * @return lucene document
     */
    public Document createDocument(Searchable entity) {

        Document doc = new Document();
        doc.add(Field.Keyword(SearchUtil.IDENTIFIER,
                SearchUtil.getIdentifier(entity)));
        build(doc, entity);

        return doc;
    }

    /**
     * DOCUMENT ME!
     *
     * @param doc DOCUMENT ME!
     * @param entity DOCUMENT ME!
     */
    protected abstract void build(Document doc, Searchable entity);
}