Red Hat Web Application Framework 6.1 Manual do Utilizador descarregar pdf (Página 166)

152 Chapter 11. Services Tutorials

private QueryComponent m_query;

private FilterComponent m_typeFilter;

private ResultsPane m_results;

public NoteSearchComponent() {

super("note:search", Note.XML_NS);

m_typeFilter = new ObjectTypeFilterComponent(Note.BASE_DATA_OBJECT_TYPE);

m_query = new BaseQueryComponent();

m_query.add(m_typeFilter);

m_results = new ResultsPane(m_query);

Form form = new Form("search");

form.add(m_query):

form.add(new Submit("Search notes"));

add(m_query);

add(m_results);

}

Example 11-19. Completed search component

11.6.3. Providing a new Query engine

This section of the tutorial outlines the steps required to implement a new query engine for performing

searches against an external index.

MORE NEEDED HERE

11.6.4. Providing a new Search indexer

This section of the tutorial outlines the steps required to implement an search indexer which receives

update notiﬁcations when a domain object is changed, retrieves metadata and content and builds an

index.

From Dan ... to manually hack the PL/SQL for the ’sync_index’ method and remove the keyword

’online’ from the code. This will do ofﬂine rebuilds of the search index. The potential problem with

this is that this locks out any other threads touching the search index - including end user searches &

metadata updates from authors editing content. As such it could severely impact on scalability, so EE

is deﬁnitely preferable to this.

MORE NEEDED HERE

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Red Hat Web Application Framework 6.1 Manual do Utilizador Página 166