org.appng.search

Interface SearchProvider

All Known Implementing Classes:

StandardSearcher

public interface SearchProvider

When performing a global search within a Site, every Application of the site is checked for SearchProviders offering some Documents.

Author:

Matthias Müller

See Also:

Document, FeatureProvider.getIndexer(), DocumentProvider

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_HITS

Method Summary

Modifier and Type	Method and Description
Iterable<Document>	doSearch(Environment env, Site site, Application application, org.apache.lucene.store.Directory directory, String term, String language, String[] parseFields, org.apache.lucene.analysis.Analyzer analyzer, String highlightWith, Map<String,String> parameters) Performs the actual search

Field Detail

MAX_HITS

static final int MAX_HITS

See Also:

Constant Field Values

Method Detail

doSearch

Iterable<Document> doSearch(Environment env,
                            Site site,
                            Application application,
                            org.apache.lucene.store.Directory directory,
                            String term,
                            String language,
                            String[] parseFields,
                            org.apache.lucene.analysis.Analyzer analyzer,
                            String highlightWith,
                            Map<String,String> parameters)
                     throws IOException

Performs the actual search

Parameters:

env - the current Environment

site - the current Site

application - the current Application

directory - the Directory representing the current Site's Lucene index.
Note that it only makes sense to use this directory for searching if the Application also contributes some Documents to the Site's global index by using FeatureProvider.getIndexer() or implementing DocumentProvider. Otherwise, the Application might have it's own Lucene index or even get the Documents from somewhere else (for example from the database or filesystem).

term - the search term

language - the language for the search

parseFields - the fields to search

analyzer - the Analyzer to use

highlightWith - a tagname to highlight fragments with, e.g span or div

parameters - some custom parameters for this search

Returns:

an Iterable<Document> containing the found Documents

Throws:

IOException - if an error occurs while searching