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a/src/rcldb/rclquery.h |
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b/src/rcldb/rclquery.h |
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* cursor in an rdb.
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* cursor in an rdb.
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*
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*
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*/
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*/
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class Query {
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class Query {
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public:
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public:
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/** The constructor only allocates memory */
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Query(Db *db);
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Query(Db *db);
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~Query();
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~Query();
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/** Get explanation about last error */
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/** Get explanation about last error */
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std::string getReason() const;
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std::string getReason() const
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{
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return m_reason;
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}
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/** Choose sort order. Must be called before setQuery */
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/** Choose sort order. Must be called before setQuery */
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void setSortBy(const std::string& fld, bool ascending = true);
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void setSortBy(const std::string& fld, bool ascending = true);
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const std::string& getSortBy() const {return m_sortField;}
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const std::string& getSortBy() const
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bool getSortAscending() const {return m_sortAscending;}
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{
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return m_sortField;
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}
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bool getSortAscending() const
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{
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return m_sortAscending;
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}
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/** Return or filter results with identical content checksum */
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/** Return or filter results with identical content checksum */
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void setCollapseDuplicates(bool on) {m_collapseDuplicates = on;}
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void setCollapseDuplicates(bool on)
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{
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m_collapseDuplicates = on;
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}
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/** Accept data describing the search and query the index. This can
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/** Accept data describing the search and query the index. This can
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* be called repeatedly on the same object which gets reinitialized each
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* be called repeatedly on the same object which gets reinitialized each
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* time.
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* time.
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*/
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*/
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bool getDoc(int i, Doc &doc);
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bool getDoc(int i, Doc &doc);
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/** Get possibly expanded list of query terms */
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/** Get possibly expanded list of query terms */
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bool getQueryTerms(std::vector<std::string>& terms);
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bool getQueryTerms(std::vector<std::string>& terms);
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/** Return a list of terms which matched for a specific result document */
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bool getMatchTerms(const Doc& doc, std::vector<std::string>& terms);
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bool getMatchTerms(unsigned long xdocid, std::vector<std::string>& terms);
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/** Build synthetic abstract for document, extracting chunks relevant for
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/** Build synthetic abstract for document, extracting chunks relevant for
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* the input query. This uses index data only (no access to the file) */
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* the input query. This uses index data only (no access to the file) */
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// Abstract return as one string
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// Abstract returned as one string
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bool makeDocAbstract(Doc &doc, std::string& abstract);
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bool makeDocAbstract(Doc &doc, std::string& abstract);
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// Returned as a snippets vector
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// Returned as a snippets vector
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bool makeDocAbstract(Doc &doc, std::vector<std::string>& abstract);
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bool makeDocAbstract(Doc &doc, std::vector<std::string>& abstract);
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// Returned as a vector of pair<page,snippet> page is 0 if unknown
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// Returned as a vector of pair<page,snippet> page is 0 if unknown
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abstract_result makeDocAbstract(Doc &doc, std::vector<Snippet>& abst,
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abstract_result makeDocAbstract(Doc &doc, std::vector<Snippet>& abst,
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int maxoccs= -1, int ctxwords = -1);
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int maxoccs= -1, int ctxwords = -1);
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/** Retrieve detected page breaks positions */
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/** Retrieve page number for first match for term */
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int getFirstMatchPage(Doc &doc, std::string& term);
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int getFirstMatchPage(Doc &doc, std::string& term);
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/** Retrieve a reference to the searchData we are using */
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RefCntr<SearchData> getSD()
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{
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return m_sd;
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}
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/** Expand query to look for documents like the one passed in */
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/** Expand query to look for documents like the one passed in */
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std::vector<std::string> expand(const Doc &doc);
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std::vector<std::string> expand(const Doc &doc);
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/** Return the Db we're set for */
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/** Return the Db we're set for */
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Db *whatDb();
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Db *whatDb() const
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{
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return m_db;
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}
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/* make this public for access from embedded Db::Native */
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/* make this public for access from embedded Db::Native */
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class Native;
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class Native;
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Native *m_nq;
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Native *m_nq;
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