<?xml version="1.0" encoding="UTF-8"?>
<!-- Persistence deployment descriptor for dev profile -->
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
             version="1.0">
             
   <persistence-unit name="isocs" transaction-type="RESOURCE_LOCAL">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
     <!-- jta-data-source>java:/isocsDatasourceHSQL</jta-data-source -->
     <non-jta-data-source>java:/isocsDatasourceHSQL</non-jta-data-source>
     <!-- jta-data-source>java:/isocsDatasource</jta-data-source -->
      <properties>
          <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" />
         <!-- property name="hibernate.dialect" value="org.hibernate.dialect.DB2Dialect" / -->
         <property name="hibernate.hbm2ddl.auto" value="update"/>
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.jdbc.batch_size" value="0"/>       
         <property name="hibernate.format_sql" value="true"/>
         <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/>
         <!-- use a file system based index -->
         <property name="hibernate.search.default.directory_provider" value="org.hibernate.search.store.FSDirectoryProvider"/>
         <!-- directory where the indexes will be stored -->
         <property name="hibernate.search.default.indexBase" value="c:\index\isocsIndexes"/>
         <property name="hibernate.search.analyzer" value="org.apache.lucene.analysis.standard.StandardAnalyzer"/>
         <!-- Not needed with HA 3.3 -->
       <property name="hibernate.ejb.event.post-insert" value="org.hibernate.search.event.FullTextIndexEventListener"/>
       <property name="hibernate.ejb.event.post-update" value="org.hibernate.search.event.FullTextIndexEventListener"/>
       <property name="hibernate.ejb.event.post-delete" value="org.hibernate.search.event.FullTextIndexEventListener"/>   
      </properties>
   </persistence-unit>
</persistence>

@Entity
@Table(name = "APPLICATION")
@Indexed
public class Application {

    private Long id;
    private String name;
    private String description;
    private Long version;
    private List<ApplicationDocument> documents;

    public Application() {
   if (documents == null)
       documents = new ArrayList<ApplicationDocument>();
    }

    @Id
    @GeneratedValue
    @Column(name = "APP_ID")
    @DocumentId
    public Long getId() {
   return id;
    }

    @SuppressWarnings("unused")
    private void setId(Long id) {
   this.id = id;
    }

    @Column(name = "NAME_TXT", length = 100)
    @Field(name="name", index = Index.TOKENIZED, store = Store.YES)
    public String getName() {
   return name;
    }

    public void setName(String name) {
   this.name = name;
    }

    @Version
    @Column(name = "VERSION_NUM")
    public Long getVersion() {
   return version;
    }

    @SuppressWarnings("unused")
    private void setVersion(Long version) {
   this.version = version;
    }

    @Override
    public boolean equals(Object other) {
   if (other == null || !(other instanceof Application)) {
       return false;
   }

   Application otherApp = (Application) other;
   return (getId().equals(otherApp.getId()));
    }

    @Override
    public int hashCode() {
   if (id == null)
       return super.hashCode();
   else
       return 37 * (int) id.intValue() + 97;
    }

    @Column(name = "DESC_TXT", length = 1000)
    @Length(min = 0, max = 1000)
    @Field(name="description", index = Index.TOKENIZED, store=Store.YES)
    public String getDescription() {
   return description;
    }

    public void setDescription(String description) {
   this.description = description;
    }

    public void setDocuments(List<ApplicationDocument> documents) {
   this.documents = documents;
    }

    @OneToMany(cascade = CascadeType.ALL, mappedBy = "application")
    public List<ApplicationDocument> getDocuments() {
   return documents;
    }

    public void addDocument(ApplicationDocument doc) {
   if (doc != null) {
       doc.setApplication(this);

       this.getDocuments().add(doc);
   }
    }

    public void deleteDocument(ApplicationDocument doc) {
   getDocuments().remove(doc);
   doc.setApplication(null);
    }

}

@Name("fullTextSearchAction")
public class FullTextSearchAction {
    @Logger
    private Log log;

    @In
    private FullTextEntityManager entityManager;

    @In
    private StatusMessages statusMessages;
   
    private String keyword;

    @SuppressWarnings("unchecked")
    private List resultList;

    @SuppressWarnings("unchecked")
    public List getResultList() {
   return resultList;
    }

    @SuppressWarnings("unchecked")
    @Observer("org.jboss.seam.postInitialization")
    @Transactional
    public void reIndex() {
   log.info("Reindexing ...");
   List<Application> applications = entityManager
      .createQuery("select application from Application as application").getResultList();
   for (Application application : applications) {
       entityManager.index(application);
   }
    }

    @Transactional
    public void fullTextSearch() {
   try {
       String[] fields = new String[] { "name", "description" };
       MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, new StandardAnalyzer());
       org.apache.lucene.search.Query query = parser.parse(keyword);
       javax.persistence.Query hibQuery = entityManager.createFullTextQuery(query, Application.class);
       resultList = hibQuery.getResultList();

   } catch (ParseException e) {
       statusMessages.add(e.getMessage());
   }
    }

    public String getKeyword() {
        return keyword;
    }

    public void setKeyword(String keyword) {
        this.keyword = keyword;
    }
}

Search:
<h:inputText value="#{fullTextSearchAction.keyword}" />
<h:commandButton action="#{fullTextSearchAction.fullTextSearch}" value="FullTextSearch" />