xapian-core
1.4.26
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A backend designed for efficient indexing and retrieval, using compressed posting lists and a btree storage scheme. More...
#include <chert_database.h>
Public Member Functions | |
ChertDatabase (const string &db_dir_, int action=Xapian::DB_READONLY_, unsigned int block_size=0u) | |
Create and open a chert database. More... | |
~ChertDatabase () | |
ChertCursor * | get_postlist_cursor () const |
Get a postlist table cursor (used by ChertValueList). More... | |
chert_revision_number_t | get_revision_number () const |
Get an object holding the revision number which the tables are opened at. More... | |
void | throw_termlist_table_close_exception () const |
int | get_backend_info (string *path) const |
Get backend information about this database. More... | |
void | get_used_docid_range (Xapian::docid &first, Xapian::docid &last) const |
Find lowest and highest docids actually in use. More... | |
bool | locked () const |
Return true if the database is open for writing. More... | |
virtual bool | has_uncommitted_changes () const |
Return true if there are uncommitted changes. More... | |
Xapian::doccount | get_doccount () const |
Virtual methods of Database::Internal. More... | |
Xapian::docid | get_lastdocid () const |
Virtual methods of Database::Internal. More... | |
Xapian::totallength | get_total_length () const |
Virtual methods of Database::Internal. More... | |
Xapian::termcount | get_doclength (Xapian::docid did) const |
Virtual methods of Database::Internal. More... | |
Xapian::termcount | get_unique_terms (Xapian::docid did) const |
Virtual methods of Database::Internal. More... | |
void | get_freqs (const string &term, Xapian::doccount *termfreq_ptr, Xapian::termcount *collfreq_ptr) const |
Virtual methods of Database::Internal. More... | |
Xapian::doccount | get_value_freq (Xapian::valueno slot) const |
Virtual methods of Database::Internal. More... | |
std::string | get_value_lower_bound (Xapian::valueno slot) const |
Virtual methods of Database::Internal. More... | |
std::string | get_value_upper_bound (Xapian::valueno slot) const |
Virtual methods of Database::Internal. More... | |
Xapian::termcount | get_doclength_lower_bound () const |
Virtual methods of Database::Internal. More... | |
Xapian::termcount | get_doclength_upper_bound () const |
Virtual methods of Database::Internal. More... | |
Xapian::termcount | get_wdf_upper_bound (const string &term) const |
Virtual methods of Database::Internal. More... | |
bool | term_exists (const string &tname) const |
Virtual methods of Database::Internal. More... | |
bool | has_positions () const |
Virtual methods of Database::Internal. More... | |
LeafPostList * | open_post_list (const string &tname) const |
Virtual methods of Database::Internal. More... | |
ValueList * | open_value_list (Xapian::valueno slot) const |
Virtual methods of Database::Internal. More... | |
Xapian::Document::Internal * | open_document (Xapian::docid did, bool lazy) const |
Virtual methods of Database::Internal. More... | |
PositionList * | open_position_list (Xapian::docid did, const string &term) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_term_list (Xapian::docid did) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_allterms (const string &prefix) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_spelling_termlist (const string &word) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_spelling_wordlist () const |
Virtual methods of Database::Internal. More... | |
Xapian::doccount | get_spelling_frequency (const string &word) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_synonym_termlist (const string &term) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_synonym_keylist (const string &prefix) const |
Virtual methods of Database::Internal. More... | |
string | get_metadata (const string &key) const |
Virtual methods of Database::Internal. More... | |
TermList * | open_metadata_keylist (const std::string &prefix) const |
Virtual methods of Database::Internal. More... | |
void | write_changesets_to_fd (int fd, const string &start_revision, bool need_whole_db, Xapian::ReplicationInfo *info) |
Virtual methods of Database::Internal. More... | |
string | get_revision_info () const |
Virtual methods of Database::Internal. More... | |
string | get_uuid () const |
Virtual methods of Database::Internal. More... | |
void | request_document (Xapian::docid) const |
Virtual methods of Database::Internal. More... | |
void | readahead_for_query (const Xapian::Query &query) |
Virtual methods of Database::Internal. More... | |
Public Member Functions inherited from Xapian::Database::Internal | |
virtual | ~Internal () |
Destroy the database. More... | |
virtual void | keep_alive () |
Send a keep-alive signal to a remote database, to stop it from timing out. More... | |
virtual void | add_spelling (const string &word, Xapian::termcount freqinc) const |
Add a word to the spelling dictionary. More... | |
virtual void | remove_spelling (const string &word, Xapian::termcount freqdec) const |
Remove a word from the spelling dictionary. More... | |
virtual void | add_synonym (const string &term, const string &synonym) const |
Add a synonym for a term. More... | |
virtual void | remove_synonym (const string &term, const string &synonym) const |
Remove a synonym for a term. More... | |
virtual void | clear_synonyms (const string &term) const |
Clear all synonyms for a term. More... | |
virtual void | set_metadata (const string &key, const string &value) |
Set the metadata associated with a given key. More... | |
virtual void | commit () |
Commit pending modifications to the database. More... | |
void | begin_transaction (bool flushed) |
Begin a transaction. More... | |
void | commit_transaction () |
Commit a transaction. More... | |
void | cancel_transaction () |
Cancel a transaction. More... | |
virtual Xapian::docid | add_document (const Xapian::Document &document) |
Add a new document to the database. More... | |
virtual void | delete_document (Xapian::docid did) |
Delete a document in the database. More... | |
virtual void | delete_document (const string &unique_term) |
Delete any documents indexed by a term from the database. More... | |
virtual void | replace_document (Xapian::docid did, const Xapian::Document &document) |
Replace a given document in the database. More... | |
virtual Xapian::docid | replace_document (const string &unique_term, const Xapian::Document &document) |
Replace any documents matching a term. More... | |
virtual void | invalidate_doc_object (Xapian::Document::Internal *obj) const |
Notify the database that document is no longer valid. More... | |
virtual Xapian::Document::Internal * | collect_document (Xapian::docid did) const |
Request and later collect a document from the database. More... | |
Public Member Functions inherited from Xapian::Internal::intrusive_base | |
intrusive_base () | |
Construct with no references. More... | |
Static Public Member Functions | |
static void | compact (Xapian::Compactor *compactor, const char *destdir, const std::vector< Xapian::Database::Internal *> &sources, const std::vector< Xapian::docid > &offset, size_t block_size, Xapian::Compactor::compaction_level compaction, unsigned flags, Xapian::docid last_docid) |
Private Member Functions | |
bool | database_exists () |
Return true if a database exists at the path specified for this database. More... | |
void | create_and_open_tables (unsigned int blocksize) |
Create new tables, and open them. More... | |
bool | open_tables_consistent () |
Open all tables at most recent consistent revision. More... | |
void | get_database_write_lock (int flags, bool creating) |
Get a write lock on the database, or throw an Xapian::DatabaseLockError if failure. More... | |
void | open_tables (chert_revision_number_t revision) |
Open tables at specified revision number. More... | |
chert_revision_number_t | get_next_revision_number () const |
Get an object holding the next revision number which should be used in the tables. More... | |
void | set_revision_number (chert_revision_number_t new_revision) |
Set the revision number in the tables. More... | |
bool | reopen () |
Re-open tables to recover from an overwritten condition, or just get most up-to-date version. More... | |
void | close () |
Close all the tables permanently. More... | |
void | modifications_failed (chert_revision_number_t old_revision, chert_revision_number_t new_revision, const std::string &msg) |
Called if a modifications fail. More... | |
void | apply () |
Apply any outstanding changes to the tables. More... | |
void | cancel () |
Cancel any outstanding changes to the tables. More... | |
void | send_whole_database (RemoteConnection &conn, double end_time) |
Send a set of messages which transfer the whole database. More... | |
void | get_changeset_revisions (const string &path, chert_revision_number_t *startrev, chert_revision_number_t *endrev) const |
Get the revision stored in a changeset. More... | |
Private Attributes | |
std::string | db_dir |
Directory to store databases in. More... | |
bool | readonly |
Whether the database is readonly. More... | |
ChertVersion | version_file |
The file describing the Chert database. More... | |
ChertPostListTable | postlist_table |
Table storing posting lists. More... | |
ChertPositionListTable | position_table |
Table storing position lists. More... | |
ChertTermListTable | termlist_table |
Table storing term lists. More... | |
ChertValueManager | value_manager |
Value manager. More... | |
ChertSynonymTable | synonym_table |
Table storing synonym data. More... | |
ChertSpellingTable | spelling_table |
Table storing spelling correction data. More... | |
ChertRecordTable | record_table |
Table storing records. More... | |
FlintLock | lock |
Lock object. More... | |
unsigned int | max_changesets |
The maximum number of changesets which should be kept in the database. More... | |
ChertDatabaseStats | stats |
Database statistics. More... | |
Friends | |
class | ChertWritableDatabase |
class | ChertTermList |
class | ChertPostList |
class | ChertAllTermsList |
class | ChertAllDocsPostList |
Additional Inherited Members | |
Public Attributes inherited from Xapian::Internal::intrusive_base | |
unsigned | _refs |
Reference count. More... | |
Protected Types inherited from Xapian::Database::Internal | |
enum | { TRANSACTION_UNIMPLEMENTED = -1, TRANSACTION_NONE = 0, TRANSACTION_UNFLUSHED = 1, TRANSACTION_FLUSHED = 2 } |
Transaction state. More... | |
Protected Member Functions inherited from Xapian::Database::Internal | |
bool | transaction_active () const |
Internal () | |
Create a database - called only by derived classes. More... | |
void | dtor_called () |
Internal method to perform cleanup when a writable database is destroyed with uncommitted changes. More... | |
Protected Attributes inherited from Xapian::Database::Internal | |
enum Xapian::Database::Internal:: { ... } | transaction_state |
Transaction state. More... | |
A backend designed for efficient indexing and retrieval, using compressed posting lists and a btree storage scheme.
Definition at line 59 of file chert_database.h.
ChertDatabase::ChertDatabase | ( | const string & | db_dir_, |
int | action = Xapian::DB_READONLY_ , |
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unsigned int | block_size = 0u |
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Create and open a chert database.
Xapian::DatabaseCorruptError | is thrown if there is no consistent revision available. |
Xapian::DatabaseOpeningError | thrown if database can't be opened. |
Xapian::DatabaseVersionError | thrown if database is in an unsupported format. This implies that the database was created by an older or newer version of Xapian. |
dbdir | directory holding chert tables |
block_size | Block size, in bytes, to use when creating tables. This is only important, and has the correct value, when the database is being created. |
Definition at line 105 of file chert_database.cc.
References create_and_open_tables(), database_exists(), Xapian::DB_CREATE, Xapian::DB_CREATE_OR_OVERWRITE, db_dir, Xapian::DB_OPEN, get_database_write_lock(), ChertTable::get_latest_revision_number(), get_next_revision_number(), ChertTable::get_open_revision_number(), LOGCALL_CTOR, open_tables_consistent(), postlist_table, readonly, record_table, S_ISDIR, and set_revision_number().
ChertDatabase::~ChertDatabase | ( | ) |
Definition at line 176 of file chert_database.cc.
References LOGCALL_DTOR.
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private |
Apply any outstanding changes to the tables.
If an error occurs during this operation, this will be signalled by an exception being thrown. In this case the contents of the tables on disk will be left in an unmodified state (though possibly with increased revision numbers), and the outstanding changes will be lost.
Definition at line 729 of file chert_database.cc.
References Xapian::Error::get_description(), get_next_revision_number(), get_revision_number(), ChertSynonymTable::is_modified(), ChertSpellingTable::is_modified(), ChertValueManager::is_modified(), ChertTable::is_modified(), LOGCALL_VOID, modifications_failed(), position_table, postlist_table, record_table, set_revision_number(), spelling_table, synonym_table, termlist_table, and value_manager.
Referenced by ChertWritableDatabase::apply().
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privatevirtual |
Cancel any outstanding changes to the tables.
Reimplemented from Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 757 of file chert_database.cc.
References ChertSynonymTable::cancel(), ChertSpellingTable::cancel(), ChertValueManager::cancel(), ChertTable::cancel(), LOGCALL_VOID, position_table, postlist_table, record_table, spelling_table, synonym_table, termlist_table, and value_manager.
Referenced by ChertWritableDatabase::cancel(), and modifications_failed().
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privatevirtual |
Close all the tables permanently.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 499 of file chert_database.cc.
References ChertTable::close(), lock, LOGCALL_VOID, position_table, postlist_table, record_table, FlintLock::release(), spelling_table, synonym_table, and termlist_table.
Referenced by ChertWritableDatabase::close(), and modifications_failed().
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static |
Definition at line 777 of file chert_compact.cc.
References Assert, CHERT_DEFAULT_BLOCK_SIZE, ChertTable::commit(), ChertTable::create_and_open(), Xapian::DBCOMPACT_MULTIPASS, Xapian::DBCOMPACT_SINGLE_FILE, DONT_COMPRESS, ChertTable::erase(), file_size(), ChertTable::flush_db(), Xapian::Compactor::FULLER, ChertTable::get_path(), has_uncommitted_changes(), FlintLock::lock(), ChertCompact::merge_docid_keyed(), ChertCompact::merge_postlists(), ChertCompact::merge_spellings(), ChertCompact::merge_synonyms(), ChertCompact::multimerge_postlists(), name, Glass::POSITION, position_table, Glass::POSTLIST, postlist_table, record_table, ChertTable::set_block_size(), ChertTable::set_full_compaction(), ChertTable::set_max_item_size(), Xapian::Compactor::set_status(), Glass::SPELLING, spelling_table, Xapian::Compactor::STANDARD, Xapian::Internal::str(), FlintLock::SUCCESS, SYNONYM, synonym_table, Glass::TERMLIST, termlist_table, and FlintLock::throw_databaselockerror().
Referenced by Xapian::Database::compact_(), and get_backend_info().
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private |
Create new tables, and open them.
Any existing tables will be removed first.
Definition at line 188 of file chert_database.cc.
References Assert, ChertVersion::create(), ChertLazyTable::create_and_open(), ChertTermListTable::create_and_open(), ChertTable::create_and_open(), database_exists(), ChertTable::get_open_revision_number(), LOGCALL_VOID, position_table, postlist_table, record_table, Xapian::revision(), spelling_table, stats, synonym_table, termlist_table, version_file, and ChertDatabaseStats::zero().
Referenced by ChertDatabase().
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private |
Return true if a database exists at the path specified for this database.
Definition at line 182 of file chert_database.cc.
References ChertTable::exists(), LOGCALL, postlist_table, record_table, and RETURN.
Referenced by ChertDatabase(), create_and_open_tables(), and get_database_write_lock().
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inlinevirtual |
Get backend information about this database.
path | If non-NULL, and set the pointed to string to the file path of this database (or if to some string describing the database in a backend-specified format if "path" isn't a concept which make sense). |
Implements Xapian::Database::Internal.
Definition at line 311 of file chert_database.h.
References BACKEND_CHERT, compact(), db_dir, get_used_docid_range(), has_uncommitted_changes(), and locked().
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private |
Get the revision stored in a changeset.
Definition at line 338 of file chert_database.cc.
References CHANGES_MAGIC_STRING, CHANGES_VERSION, CONST_STRLEN, io_read(), O_CLOEXEC, posixy_open, REASONABLE_CHANGESET_SIZE, and unpack_uint().
Referenced by write_changesets_to_fd().
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private |
Get a write lock on the database, or throw an Xapian::DatabaseLockError if failure.
flags | Bit-wise or of zero or more Xapian::DB_* constants |
creating | true if the database is in the process of being created - if false, will throw a DatabaseOpening error if the lock can't be acquired and the database doesn't exist. |
Definition at line 512 of file chert_database.cc.
References database_exists(), db_dir, Xapian::DB_RETRY_LOCK, FlintLock::lock(), lock, LOGCALL_VOID, FlintLock::SUCCESS, FlintLock::throw_databaselockerror(), and FlintLock::UNKNOWN.
Referenced by ChertDatabase().
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virtual |
Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 770 of file chert_database.cc.
References ChertRecordTable::get_doccount(), LOGCALL, record_table, and RETURN.
Referenced by ChertTermList::accumulate_stats(), check_db_dir(), get_postlist_cursor(), open_post_list(), and ChertWritableDatabase::open_post_list().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 791 of file chert_database.cc.
References Assert, ChertPostListTable::get_doclength(), LOGCALL, postlist_table, and RETURN.
Referenced by ChertModifiedPostList::get_doclength(), ChertPostList::get_doclength(), ChertWritableDatabase::get_doclength(), get_postlist_cursor(), and open_document().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 847 of file chert_database.cc.
References ChertDatabaseStats::get_doclength_lower_bound(), and stats.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 853 of file chert_database.cc.
References ChertDatabaseStats::get_doclength_upper_bound(), and stats.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 816 of file chert_database.cc.
References Assert, ChertPostListTable::get_freqs(), LOGCALL_VOID, and postlist_table.
Referenced by ChertWritableDatabase::get_freqs(), get_postlist_cursor(), ChertModifiedPostList::get_termfreq(), ChertTermList::get_termfreq(), and get_wdf_upper_bound().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 777 of file chert_database.cc.
References ChertDatabaseStats::get_last_docid(), LOGCALL, RETURN, and stats.
Referenced by check_db_dir(), and get_postlist_cursor().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 990 of file chert_database.cc.
References ChertTable::get_exact_entry(), LOGCALL, postlist_table, and RETURN.
Referenced by get_postlist_cursor().
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private |
Get an object holding the next revision number which should be used in the tables.
Definition at line 324 of file chert_database.cc.
References ChertTable::get_latest_revision_number(), LOGCALL, postlist_table, and RETURN.
Referenced by apply(), and ChertDatabase().
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inline |
Get a postlist table cursor (used by ChertValueList).
Definition at line 251 of file chert_database.h.
References ChertTable::cursor_get(), ChertPostList::did, get_doccount(), get_doclength(), get_doclength_lower_bound(), get_doclength_upper_bound(), get_freqs(), get_lastdocid(), get_metadata(), get_revision_info(), get_revision_number(), get_spelling_frequency(), get_total_length(), get_unique_terms(), get_uuid(), get_value_freq(), get_value_lower_bound(), get_value_upper_bound(), get_wdf_upper_bound(), has_positions(), open_allterms(), open_document(), open_metadata_keylist(), open_position_list(), open_post_list(), open_spelling_termlist(), open_spelling_wordlist(), open_synonym_keylist(), open_synonym_termlist(), open_term_list(), open_value_list(), query(), readahead_for_query(), request_document(), LeafPostList::term, term_exists(), throw_termlist_table_close_exception(), and write_changesets_to_fd().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 1011 of file chert_database.cc.
References get_revision_number(), LOGCALL, pack_uint(), and RETURN.
Referenced by get_postlist_cursor().
chert_revision_number_t ChertDatabase::get_revision_number | ( | ) | const |
Get an object holding the revision number which the tables are opened at.
Definition at line 316 of file chert_database.cc.
References ChertTable::get_open_revision_number(), LOGCALL, postlist_table, and RETURN.
Referenced by apply(), check_db_dir(), get_postlist_cursor(), get_revision_info(), send_whole_database(), set_revision_number(), and write_changesets_to_fd().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 969 of file chert_database.cc.
References ChertSpellingTable::get_word_frequency(), and spelling_table.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 784 of file chert_database.cc.
References ChertDatabaseStats::get_total_doclen(), LOGCALL, RETURN, and stats.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 800 of file chert_database.cc.
References Assert, ChertTermList::get_approx_size(), ChertPostListTable::get_doclength(), LOGCALL, postlist_table, and RETURN.
Referenced by get_postlist_cursor(), ChertAllDocsModifiedPostList::get_unique_terms(), ChertModifiedPostList::get_unique_terms(), ChertPostList::get_unique_terms(), and ChertWritableDatabase::get_unique_terms().
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Find lowest and highest docids actually in use.
Only used by compaction, so only needs to be implemented by backends which support compaction.
Reimplemented from Xapian::Database::Internal.
Definition at line 1037 of file chert_database.cc.
References ChertRecordTable::get_doccount(), ChertDatabaseStats::get_last_docid(), ChertPostListTable::get_used_docid_range(), postlist_table, record_table, and stats.
Referenced by get_backend_info().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 1020 of file chert_database.cc.
References ChertVersion::get_uuid_string(), LOGCALL, RETURN, and version_file.
Referenced by get_postlist_cursor(), send_whole_database(), and write_changesets_to_fd().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 826 of file chert_database.cc.
References ChertValueManager::get_value_freq(), LOGCALL, RETURN, and value_manager.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::get_value_freq().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 833 of file chert_database.cc.
References ChertValueManager::get_value_lower_bound(), LOGCALL, RETURN, and value_manager.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::get_value_lower_bound().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 840 of file chert_database.cc.
References ChertValueManager::get_value_upper_bound(), LOGCALL, RETURN, and value_manager.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::get_value_upper_bound().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 859 of file chert_database.cc.
References get_freqs(), ChertDatabaseStats::get_wdf_upper_bound(), and stats.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 875 of file chert_database.cc.
References ChertTable::empty(), and position_table.
Referenced by get_postlist_cursor().
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Return true if there are uncommitted changes.
Reimplemented in ChertWritableDatabase.
Definition at line 1056 of file chert_database.cc.
Referenced by compact(), and get_backend_info().
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Return true if the database is open for writing.
If this is a WritableDatabase, always returns true.
For a Database, test if there's a writer holding the lock (or if we can't test for a lock without taking it on the current platform, throw Xapian::UnimplementedError).
Reimplemented from Xapian::Database::Internal.
Definition at line 1050 of file chert_database.cc.
References lock, and FlintLock::test().
Referenced by get_backend_info().
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private |
Called if a modifications fail.
msg | is a string description of the exception that was raised when the modifications failed. |
Definition at line 701 of file chert_database.cc.
References cancel(), close(), Xapian::Error::get_msg(), open_tables(), and set_revision_number().
Referenced by apply().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 946 of file chert_database.cc.
References ChertAllTermsList, LOGCALL, and RETURN.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::open_allterms().
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virtual |
Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 917 of file chert_database.cc.
References Assert, get_doclength(), LOGCALL, record_table, RETURN, and value_manager.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::open_document().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 1001 of file chert_database.cc.
References ChertTable::cursor_get(), LOGCALL, postlist_table, and RETURN.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 931 of file chert_database.cc.
References Assert, and position_table.
Referenced by get_postlist_cursor(), ChertModifiedPostList::open_position_list(), and ChertModifiedPostList::read_position_list().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 881 of file chert_database.cc.
References ChertAllDocsPostList, ChertPostList, get_doccount(), ChertDatabaseStats::get_last_docid(), LOGCALL, RETURN, and stats.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 954 of file chert_database.cc.
References ChertSpellingTable::open_termlist(), and spelling_table.
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 960 of file chert_database.cc.
References ChertTable::cursor_get(), and spelling_table.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::open_spelling_wordlist().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 981 of file chert_database.cc.
References ChertTable::cursor_get(), and synonym_table.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::open_synonym_keylist().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 975 of file chert_database.cc.
References ChertSynonymTable::open_termlist(), and synonym_table.
Referenced by get_postlist_cursor().
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Open tables at specified revision number.
Xapian::InvalidArgumentError | is thrown if the specified revision is not available. |
Definition at line 293 of file chert_database.cc.
References ChertTable::get_block_size(), LOGCALL_VOID, ChertPostListTable::open(), ChertTable::open(), position_table, postlist_table, ChertVersion::read_and_check(), record_table, ChertValueManager::reset(), ChertTable::set_block_size(), spelling_table, synonym_table, termlist_table, value_manager, and version_file.
Referenced by modifications_failed().
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Open all tables at most recent consistent revision.
Xapian::DatabaseCorruptError | is thrown if there is no consistent revision available. |
Definition at line 216 of file chert_database.cc.
References ChertTable::get_block_size(), ChertTable::get_open_revision_number(), LOGCALL, MAX_OPEN_RETRIES, ChertPostListTable::open(), ChertTable::open(), position_table, postlist_table, ChertDatabaseStats::read(), ChertVersion::read_and_check(), record_table, ChertValueManager::reset(), RETURN, Xapian::revision(), ChertTable::set_block_size(), spelling_table, stats, synonym_table, termlist_table, value_manager, and version_file.
Referenced by ChertDatabase(), and reopen().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Definition at line 906 of file chert_database.cc.
References Assert, ChertTermList, ChertTable::is_open(), LOGCALL, RETURN, termlist_table, and throw_termlist_table_close_exception().
Referenced by get_postlist_cursor().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 898 of file chert_database.cc.
References LOGCALL, and RETURN.
Referenced by get_postlist_cursor(), and ChertWritableDatabase::open_value_list().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 480 of file chert_database.cc.
References Xapian::Query::get_unique_terms_begin(), ChertPostListTable::make_key(), postlist_table, and ChertTable::readahead_key().
Referenced by get_postlist_cursor().
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Re-open tables to recover from an overwritten condition, or just get most up-to-date version.
Reimplemented from Xapian::Database::Internal.
Definition at line 491 of file chert_database.cc.
References LOGCALL, open_tables_consistent(), readonly, and RETURN.
Referenced by write_changesets_to_fd().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 474 of file chert_database.cc.
References ChertRecordTable::readahead_for_record(), and record_table.
Referenced by get_postlist_cursor().
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Send a set of messages which transfer the whole database.
Definition at line 530 of file chert_database.cc.
References db_dir, encode_length(), get_revision_number(), get_uuid(), LOGCALL_VOID, O_CLOEXEC, pack_uint(), posixy_open, REPL_REPLY_DB_FILEDATA, REPL_REPLY_DB_FILENAME, REPL_REPLY_DB_HEADER, RemoteConnection::send_file(), and RemoteConnection::send_message().
Referenced by write_changesets_to_fd().
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Set the revision number in the tables.
This updates the disk tables so that the currently open revision becomes the specified revision number.
new_revision | The new revision number to store. This must be greater than the latest revision number (see get_latest_revision_number()), or undefined behaviour will result. |
Definition at line 380 of file chert_database.cc.
References CHANGES_MAGIC_STRING, CHANGES_VERSION, ChertTable::commit(), create_changeset_file(), db_dir, ChertSynonymTable::flush_db(), ChertSpellingTable::flush_db(), ChertTable::flush_db(), get_revision_number(), io_unlink(), io_write(), LOGCALL_VOID, max_changesets, ChertValueManager::merge_changes(), pack_uint(), position_table, postlist_table, record_table, spelling_table, Xapian::Internal::str(), synonym_table, termlist_table, value_manager, and ChertTable::write_changed_blocks().
Referenced by apply(), ChertDatabase(), and modifications_failed().
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Virtual methods of Database::Internal.
Implements Xapian::Database::Internal.
Reimplemented in ChertWritableDatabase.
Definition at line 867 of file chert_database.cc.
References Assert, LOGCALL, postlist_table, RETURN, and ChertPostListTable::term_exists().
Referenced by get_postlist_cursor().
void ChertDatabase::throw_termlist_table_close_exception | ( | ) | const |
Definition at line 1027 of file chert_database.cc.
References ChertTable::is_open(), postlist_table, and ChertTable::throw_database_closed().
Referenced by ChertWritableDatabase::delete_document(), get_postlist_cursor(), open_term_list(), and ChertWritableDatabase::replace_document().
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Virtual methods of Database::Internal.
Reimplemented from Xapian::Database::Internal.
Definition at line 570 of file chert_database.cc.
References Xapian::ReplicationInfo::changed, Xapian::ReplicationInfo::changeset_count, db_dir, Xapian::ReplicationInfo::fullcopy_count, get_changeset_revisions(), get_revision_number(), get_uuid(), LOGCALL_VOID, MAX_DB_COPIES_PER_CONVERSATION, O_CLOEXEC, pack_uint(), posixy_open, reopen(), REPL_REPLY_CHANGESET, REPL_REPLY_DB_FOOTER, REPL_REPLY_END_OF_CHANGES, REPL_REPLY_FAIL, RemoteConnection::send_file(), RemoteConnection::send_message(), send_whole_database(), Xapian::Internal::str(), and unpack_uint().
Referenced by get_postlist_cursor().
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Definition at line 64 of file chert_database.h.
Referenced by open_post_list(), and ChertWritableDatabase::open_post_list().
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Definition at line 63 of file chert_database.h.
Referenced by open_allterms().
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Definition at line 62 of file chert_database.h.
Referenced by open_post_list(), and ChertWritableDatabase::open_post_list().
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Definition at line 61 of file chert_database.h.
Referenced by open_term_list().
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Definition at line 60 of file chert_database.h.
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Directory to store databases in.
Definition at line 68 of file chert_database.h.
Referenced by ChertDatabase(), get_backend_info(), get_database_write_lock(), send_whole_database(), set_revision_number(), and write_changesets_to_fd().
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Lock object.
Definition at line 118 of file chert_database.h.
Referenced by close(), get_database_write_lock(), and locked().
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The maximum number of changesets which should be kept in the database.
Definition at line 122 of file chert_database.h.
Referenced by set_revision_number().
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Table storing position lists.
Definition at line 90 of file chert_database.h.
Referenced by ChertWritableDatabase::add_document_(), apply(), cancel(), close(), compact(), create_and_open_tables(), ChertWritableDatabase::delete_document(), has_positions(), ChertWritableDatabase::has_uncommitted_changes(), ChertPostList::open_position_list(), open_position_list(), open_tables(), open_tables_consistent(), ChertTermList::positionlist_begin(), ChertTermList::positionlist_count(), ChertPostList::read_position_list(), ChertWritableDatabase::replace_document(), and set_revision_number().
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Table storing posting lists.
Whenever an update is performed, this table is the first to be updated: therefore, its most recent revision number is the most recent anywhere in the database.
Definition at line 86 of file chert_database.h.
Referenced by apply(), cancel(), ChertWritableDatabase::cancel(), ChertDatabase(), close(), compact(), create_and_open_tables(), database_exists(), ChertWritableDatabase::flush_postlist_changes(), get_doclength(), get_freqs(), get_metadata(), get_next_revision_number(), get_revision_number(), get_unique_terms(), get_used_docid_range(), ChertWritableDatabase::has_uncommitted_changes(), ChertAllTermsList::next(), open_metadata_keylist(), open_tables(), open_tables_consistent(), readahead_for_query(), ChertWritableDatabase::replace_document(), ChertWritableDatabase::set_metadata(), set_revision_number(), ChertAllTermsList::skip_to(), term_exists(), and throw_termlist_table_close_exception().
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Whether the database is readonly.
Definition at line 72 of file chert_database.h.
Referenced by ChertDatabase(), and reopen().
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Table storing records.
Whenever an update is performed, this table is the last to be updated: therefore, its most recent revision number is the most recent consistent revision available. If this table's most recent revision number is not available for all tables, there is no consistent revision available, and the database is corrupt.
Definition at line 115 of file chert_database.h.
Referenced by ChertWritableDatabase::add_document_(), apply(), cancel(), ChertDatabase(), close(), compact(), create_and_open_tables(), database_exists(), ChertWritableDatabase::delete_document(), get_doccount(), get_used_docid_range(), ChertWritableDatabase::has_uncommitted_changes(), open_document(), open_tables(), open_tables_consistent(), ChertWritableDatabase::replace_document(), request_document(), and set_revision_number().
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Table storing spelling correction data.
Definition at line 105 of file chert_database.h.
Referenced by ChertWritableDatabase::add_spelling(), apply(), cancel(), close(), compact(), create_and_open_tables(), get_spelling_frequency(), ChertWritableDatabase::has_uncommitted_changes(), open_spelling_termlist(), open_spelling_wordlist(), ChertWritableDatabase::open_spelling_wordlist(), open_tables(), open_tables_consistent(), ChertWritableDatabase::remove_spelling(), and set_revision_number().
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Database statistics.
Definition at line 125 of file chert_database.h.
Referenced by ChertWritableDatabase::add_document(), ChertWritableDatabase::add_document_(), ChertWritableDatabase::cancel(), create_and_open_tables(), ChertWritableDatabase::delete_document(), ChertWritableDatabase::flush_postlist_changes(), get_doclength_lower_bound(), get_doclength_upper_bound(), get_lastdocid(), get_total_length(), get_used_docid_range(), get_wdf_upper_bound(), open_post_list(), ChertWritableDatabase::open_post_list(), open_tables_consistent(), and ChertWritableDatabase::replace_document().
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Table storing synonym data.
Definition at line 101 of file chert_database.h.
Referenced by ChertWritableDatabase::add_synonym(), apply(), cancel(), ChertWritableDatabase::clear_synonyms(), close(), compact(), create_and_open_tables(), ChertWritableDatabase::has_uncommitted_changes(), open_synonym_keylist(), ChertWritableDatabase::open_synonym_keylist(), open_synonym_termlist(), open_tables(), open_tables_consistent(), ChertWritableDatabase::remove_synonym(), and set_revision_number().
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Table storing term lists.
Definition at line 94 of file chert_database.h.
Referenced by ChertWritableDatabase::add_document_(), apply(), cancel(), ChertTermList::ChertTermList(), close(), compact(), create_and_open_tables(), ChertWritableDatabase::delete_document(), ChertWritableDatabase::has_uncommitted_changes(), open_tables(), open_tables_consistent(), open_term_list(), ChertWritableDatabase::replace_document(), and set_revision_number().
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Value manager.
Definition at line 97 of file chert_database.h.
Referenced by ChertWritableDatabase::add_document_(), apply(), ChertWritableDatabase::apply(), cancel(), ChertWritableDatabase::delete_document(), get_value_freq(), get_value_lower_bound(), get_value_upper_bound(), ChertWritableDatabase::has_uncommitted_changes(), open_document(), open_tables(), open_tables_consistent(), ChertWritableDatabase::open_value_list(), ChertWritableDatabase::replace_document(), and set_revision_number().
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The file describing the Chert database.
This file has information about the format of the database which can't easily be stored in any of the individual tables.
Definition at line 78 of file chert_database.h.
Referenced by create_and_open_tables(), get_uuid(), open_tables(), and open_tables_consistent().