#include <sql.h>

Inheritance diagram for sqlite::Sql:

Public Member Functions
	Sql (sqlite3 *sqlite_db, const std::string &statement)

virtual	~Sql ()

bool	Execute ()

bool	FetchRow ()

std::string	DebugResultTable ()

bool	Reset ()

int	GetLastError () const

std::string	GetLastErrorMsg () const

bool	BindBlob (const int index, const void *value, const unsigned size)

bool	BindBlobTransient (const int index, const void *value, const unsigned size)

bool	BindDouble (const int index, const double value)

bool	BindInt (const int index, const int value)

bool	BindInt64 (const int index, const sqlite3_int64 value)

bool	BindNull (const int index)

bool	BindTextTransient (const int index, const std::string &value)

bool	BindTextTransient (const int index, const char *value, const int size)

bool	BindText (const int index, const std::string &value)

bool	BindText (const int index, const char value, const int size, void(dtor)(void *)=SQLITE_STATIC)

template<typename T >
bool	Bind (const int index, const T &value)

int	RetrieveType (const int idx_column) const

int	RetrieveBytes (const int idx_column) const

const void *	RetrieveBlob (const int idx_column) const

double	RetrieveDouble (const int idx_column) const

int	RetrieveNullableInt (const int idx_column, const int val_null) const

int	RetrieveInt (const int idx_column) const

sqlite3_int64	RetrieveInt64 (const int idx_column) const

const unsigned char *	RetrieveText (const int idx_column) const

std::string	RetrieveString (const int idx_column) const

template<typename T >
T	Retrieve (const int index)

template<>
bool	Bind (const int index, const int &value)

template<>
bool	Bind (const int index, const unsigned int &value)

template<>
bool	Bind (const int index, const uint64_t &value)

template<>
bool	Bind (const int index, const sqlite3_int64 &value)

template<>
bool	Bind (const int index, const std::string &value)

template<>
bool	Bind (const int index, const float &value)

template<>
bool	Bind (const int index, const double &value)

template<>
int	Retrieve (const int index)

template<>
bool	Retrieve (const int index)

template<>
sqlite3_int64	Retrieve (const int index)

template<>
uint64_t	Retrieve (const int index)

template<>
std::string	Retrieve (const int index)

template<>
float	Retrieve (const int index)

template<>
double	Retrieve (const int index)

Protected Member Functions
	Sql ()

bool	IsInitialized () const

bool	Init (const sqlite3 *database, const std::string &statement)

void	DeferredInit (const sqlite3 database, const char statement)

bool	Successful () const

Private Member Functions
bool	Init (const char *statement)

void	LazyInit ()

Private Attributes
sqlite3 *	database_

sqlite3_stmt *	statement_

const char *	query_string_

int	last_error_code_

Detailed Description

Base class for all SQL statement classes. It wraps a single SQL statement and all necessary calls of the sqlite3 API to deal with this statement.

NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE * NOTE This base class implements a lazy initialization of the SQLite * NOTE prepared statement. Therefore it is strongly discouraged to use * NOTE any sqlite3_***() functions directly in the subclasses. Instead * NOTE one must wrap them in this base class and implement the lazy * NOTE initialization scheme as seen below. * NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE *

Derived classes can decide if their statement should be prepared immediately or on first use (aka lazily). The derived constructor must call Sql::Init() or Sql::DeferredInit() accordingly.

Sql objects created via the public constructor rather than by the constructor of a derived class are prepared immediately by default.

Definition at line 329 of file sql.h.

Constructor & Destructor Documentation

sqlite::Sql::Sql	(	sqlite3 *	sqlite_db,
		const std::string &	statement
	)

Basic constructor to use this class for a specific statement.

Parameters

database	the database to use the query on
statement	the statement to prepare

Definition at line 15 of file sql.cc.

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sqlite::Sql::~Sql ( )

virtual

Definition at line 26 of file sql.cc.

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sqlite::Sql::Sql ( )

inlineprotected

Definition at line 463 of file sql.h.

Member Function Documentation

template<typename T >

bool sqlite::Sql::Bind	(	const int	index,
		const T &	value
	)

inline

Figures out the type to be bound by template parameter deduction NOTE: For strings this is suboptimal, since it needs to assume that the provided buffer is transient and copy it to be sure.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const int &	value
	)

inline

Definition at line 450 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const unsigned int &	value
	)

inline

Definition at line 455 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const uint64_t &	value
	)

inline

Definition at line 460 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const sqlite3_int64 &	value
	)

inline

Definition at line 465 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const std::string &	value
	)

inline

Definition at line 470 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const float &	value
	)

inline

Definition at line 475 of file sql_impl.h.

template<>

bool sqlite::Sql::Bind	(	const int	index,
		const double &	value
	)

inline

Definition at line 480 of file sql_impl.h.

bool sqlite::Sql::BindBlob	(	const int	index,
		const void *	value,
		const unsigned	size
	)

inline

Definition at line 355 of file sql.h.

Referenced by catalog::SqlCatalog::BindHashBlob().

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bool sqlite::Sql::BindBlobTransient	(	const int	index,
		const void *	value,
		const unsigned	size
	)

inline

Definition at line 362 of file sql.h.

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bool sqlite::Sql::BindDouble	(	const int	index,
		const double	value
	)

inline

Definition at line 371 of file sql.h.

Referenced by swissknife::CommandMigrate::MigrationWorker_217::UpdateCatalogSchema().

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bool sqlite::Sql::BindInt	(	const int	index,
		const int	value
	)

inline

Definition at line 376 of file sql.h.

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bool sqlite::Sql::BindInt64	(	const int	index,
		const sqlite3_int64	value
	)

inline

Definition at line 381 of file sql.h.

Referenced by history::SqlInsertBranch::BindBranch(), catalog::SqlCatalog::BindMd5(), SqlListReferences::BindOlderThan(), SqlInsertReference::BindReference(), SqlRemoveReference::BindReference(), SqlContainsReference::BindReference(), SqlGetTimestamp::BindReference(), history::SqlInsertTag::BindTag(), history::SqlFindTagByDate::BindTimestamp(), SqlListReferences::BindType(), swissknife::CommandMigrate::HardlinkRemovalMigrationWorker::BreakUpHardlinks(), swissknife::CommandMigrate::MigrationWorker_20x::GenerateCatalogStatistics(), swissknife::CommandMigrate::MigrationWorker_217::GenerateNewStatisticsCounters(), catalog::WritableCatalog::InsertBindMountpoint(), catalog::WritableCatalog::InsertNestedCatalog(), swissknife::CommandMigrate::MigrationWorker_20x::MigrateFileMetadata(), swissknife::CommandMigrate::MigrationWorker_20x::MigrateNestedCatalogMountPoints(), swissknife::CommandMigrate::BulkhashRemovalMigrationWorker::RemoveRedundantBulkHashes(), catalog::WritableCatalog::UpdateNestedCatalog(), and swissknife::CommandMigrate::AbstractMigrationWorker< DerivedT >::UpdateNestedCatalogReferences().

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bool sqlite::Sql::BindNull ( const int index )

inline

Definition at line 386 of file sql.h.

Referenced by catalog::SqlCatalog::BindHashBlob().

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bool sqlite::Sql::BindText	(	const int	index,
		const std::string &	value
	)

inline

Definition at line 399 of file sql.h.

Referenced by history::SqlInsertBranch::BindBranch(), history::SqlFindBranchHead::BindBranchName(), history::SqlRemoveTag::BindName(), history::SqlFindTag::BindName(), history::SqlInsertTag::BindTag(), BindTextTransient(), catalog::WritableCatalog::InsertBindMountpoint(), catalog::WritableCatalog::InsertNestedCatalog(), catalog::WritableCatalog::RemoveBindMountpoint(), catalog::WritableCatalog::RemoveNestedCatalog(), catalog::WritableCatalog::UpdateNestedCatalog(), and swissknife::CommandMigrate::AbstractMigrationWorker< DerivedT >::UpdateNestedCatalogReferences().

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bool sqlite::Sql::BindText	(	const int	index,
		const char *	value,
		const int	size,
		void()(void )	dtor = `SQLITE_STATIC`
	)

inline

Definition at line 403 of file sql.h.

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bool sqlite::Sql::BindTextTransient	(	const int	index,
		const std::string &	value
	)

inline

Definition at line 391 of file sql.h.

Referenced by SqlInsertReference::BindReference(), SqlRemoveReference::BindReference(), SqlContainsReference::BindReference(), SqlGetTimestamp::BindReference(), and history::SqlInsertTag::BindTag().

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bool sqlite::Sql::BindTextTransient	(	const int	index,
		const char *	value,
		const int	size
	)

inline

Definition at line 395 of file sql.h.

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std::string sqlite::Sql::DebugResultTable ( )

Definition at line 69 of file sql.cc.

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void sqlite::Sql::DeferredInit	(	const sqlite3 *	database,
		const char *	statement
	)

protected

Defers the initialization of the prepared statement to the first usage to safe memory and CPU cycles for statements that are defined but never used. Typically this method is used in constructors of derived classes.

Parameters

database	the sqlite database pointer to be query against
statement	the query string to be prepared for execution

Definition at line 158 of file sql.cc.

Referenced by SqlContainsReference::SqlContainsReference(), SqlCountReferences::SqlCountReferences(), history::SqlCountTags::SqlCountTags(), history::SqlGetHashes::SqlGetHashes(), SqlGetTimestamp::SqlGetTimestamp(), history::SqlInsertBranch::SqlInsertBranch(), history::SqlListBranches::SqlListBranches(), SqlListReferences::SqlListReferences(), history::SqlRecycleBinFlush::SqlRecycleBinFlush(), history::SqlRecycleBinList::SqlRecycleBinList(), SqlRemoveReference::SqlRemoveReference(), and history::SqlRemoveTag::SqlRemoveTag().

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bool sqlite::Sql::Execute ( )

Executes the prepared statement. (this method should be used for modifying statements like DELETE or INSERT)

Returns: true on success otherwise false

Definition at line 42 of file sql.cc.

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bool sqlite::Sql::FetchRow ( )

Execute the prepared statement or fetch its next row. This method is intended to step through the result set. If it returns false this does not necessarily mean, that the actual statement execution failed, but that no row was fetched.

Returns: true if a new row was fetched otherwise false

Definition at line 62 of file sql.cc.

Referenced by swissknife::CommandMigrate::MigrationWorker_20x::AnalyzeFileLinkcounts(), swissknife::CommandMigrate::AbstractMigrationWorker< DerivedT >::CollectAndAggregateStatistics(), DebugResultTable(), catalog::Catalog::FindNested(), swissknife::CommandMigrate::MigrationWorker_20x::FixNestedCatalogTransitionPoints(), swissknife::CommandMigrate::MigrationWorker_20x::GenerateCatalogStatistics(), swissknife::CommandMigrate::MigrationWorker_217::GenerateNewStatisticsCounters(), sqlite::Database< DerivedT >::GetFreePageRatio(), catalog::WritableCatalog::GetMaxLinkId(), catalog::Catalog::GetNumEntries(), catalog::Catalog::GetReferencedObjects(), catalog::CatalogDatabase::GetRowIdWasteRatio(), catalog::Catalog::ListingMd5Path(), catalog::Catalog::ListingMd5PathStat(), catalog::Catalog::ListMd5PathChunks(), catalog::Catalog::ListNestedCatalogs(), catalog::Catalog::ListOwnNestedCatalogs(), catalog::Catalog::LookupEntry(), catalog::Catalog::LookupXattrsMd5Path(), catalog::Catalog::OpenDatabase(), swissknife::CommandFileStats::ProcessCatalog(), history::SqliteHistory::PruneBranches(), catalog::TreeCountersBase< FieldT >::ReadFromDatabase(), swissknife::CommandMigrate::MigrationWorker_20x::RemoveDanglingNestedMountpoints(), and swissknife::CommandMigrate::StatsMigrationWorker::RepairStatisticsCounters().

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int sqlite::Sql::GetLastError ( ) const

inline

Definition at line 343 of file sql.h.

Referenced by swissknife::Error(), Execute(), Init(), swissknife::CommandMigrate::MigrationWorker_20x::MigrateFileMetadata(), and catalog::Catalog::OpenDatabase().

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std::string sqlite::Sql::GetLastErrorMsg ( ) const

Returns the english language error description of the last error happened in the context of the sqlite3 database object this statement is registered to. Note: In a multithreaded context it might be unpredictable which the actual last error is.

Returns: english language error description of last error

Definition at line 164 of file sql.cc.

Referenced by swissknife::Error(), and Execute().

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bool sqlite::Sql::Init	(	const sqlite3 *	database,
		const std::string &	statement
	)

protected

Initializes the prepared statement immediately.

Parameters

database	the sqlite database pointer to be query against
statement	the query string to be prepared for execution

Returns: true on successful statement preparation

Definition at line 132 of file sql.cc.

Referenced by LazyInit(), Sql(), and catalog::SqlCatalog::SqlCatalog().

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bool sqlite::Sql::Init ( const char * statement )

private

Definition at line 137 of file sql.cc.

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bool sqlite::Sql::IsInitialized ( ) const

inlineprotected

Definition at line 469 of file sql.h.

Referenced by LazyInit().

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void sqlite::Sql::LazyInit ( )

inlineprivate

Definition at line 502 of file sql.h.

Referenced by BindBlob(), BindBlobTransient(), BindDouble(), BindInt(), BindInt64(), BindNull(), BindText(), Execute(), and FetchRow().

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bool sqlite::Sql::Reset ( )

Reset a prepared statement to make it reusable.

Returns: true on success otherwise false

Definition at line 126 of file sql.cc.

Referenced by catalog::WritableCatalog::AddFileChunk(), catalog::Catalog::FindNested(), swissknife::CommandMigrate::MigrationWorker_20x::FixNestedCatalogTransitionPoints(), catalog::WritableCatalog::GetMaxLinkId(), catalog::WritableCatalog::IncLinkcount(), catalog::TreeCountersBase< FieldT >::InsertIntoDatabase(), catalog::Catalog::ListingMd5Path(), catalog::Catalog::ListingMd5PathStat(), catalog::Catalog::ListMd5PathChunks(), catalog::Catalog::ListNestedCatalogs(), catalog::Catalog::ListOwnNestedCatalogs(), catalog::Catalog::LookupEntry(), catalog::Catalog::LookupXattrsMd5Path(), swissknife::CommandMigrate::MigrationWorker_20x::MigrateNestedCatalogMountPoints(), catalog::TreeCountersBase< FieldT >::ReadFromDatabase(), swissknife::CommandMigrate::MigrationWorker_20x::RemoveDanglingNestedMountpoints(), catalog::WritableCatalog::RemoveEntry(), catalog::WritableCatalog::RemoveFileChunks(), catalog::WritableCatalog::TouchEntry(), catalog::WritableCatalog::UpdateEntry(), swissknife::CommandMigrate::AbstractMigrationWorker< DerivedT >::UpdateNestedCatalogReferences(), and catalog::TreeCountersBase< FieldT >::WriteToDatabase().

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template<typename T >

T sqlite::Sql::Retrieve ( const int index )

inline

template<>

int sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 486 of file sql_impl.h.

template<>

bool sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 491 of file sql_impl.h.

template<>

sqlite3_int64 sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 496 of file sql_impl.h.

template<>

uint64_t sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 501 of file sql_impl.h.

template<>

std::string sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 506 of file sql_impl.h.

template<>

float sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 511 of file sql_impl.h.

template<>

double sqlite::Sql::Retrieve ( const int index )

inline

Definition at line 516 of file sql_impl.h.

const void* sqlite::Sql::RetrieveBlob ( const int idx_column ) const

inline

Definition at line 436 of file sql.h.

Referenced by swissknife::CommandFileStats::ProcessCatalog(), and catalog::SqlCatalog::RetrieveHashBlob().

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int sqlite::Sql::RetrieveBytes ( const int idx_column ) const

inline

Determines the number of bytes necessary to store the column's data as a string. This might involve type conversions and depends on which other RetrieveXXX methods were called on the same column index before!

See SQLite documentation for sqlite_column_bytes() for details: https://www.sqlite.org/c3ref/column_blob.html

Definition at line 433 of file sql.h.

Referenced by swissknife::CommandFileStats::ProcessCatalog(), and catalog::SqlCatalog::RetrieveHashBlob().

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double sqlite::Sql::RetrieveDouble ( const int idx_column ) const

inline

Definition at line 439 of file sql.h.

Referenced by DebugResultTable(), and catalog::CatalogDatabase::GetRowIdWasteRatio().

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int sqlite::Sql::RetrieveInt ( const int idx_column ) const

inline

Definition at line 447 of file sql.h.

Referenced by swissknife::CommandFileStats::ProcessCatalog().

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sqlite3_int64 sqlite::Sql::RetrieveInt64 ( const int idx_column ) const

inline

Definition at line 450 of file sql.h.

Referenced by swissknife::CommandMigrate::MigrationWorker_20x::AnalyzeFileLinkcounts(), swissknife::CommandMigrate::AbstractMigrationWorker< DerivedT >::CollectAndAggregateStatistics(), DebugResultTable(), swissknife::CommandMigrate::MigrationWorker_20x::GenerateCatalogStatistics(), swissknife::CommandMigrate::MigrationWorker_217::GenerateNewStatisticsCounters(), sqlite::Database< DerivedT >::GetFreePageRatio(), catalog::Catalog::GetNumEntries(), catalog::Catalog::OpenDatabase(), swissknife::CommandFileStats::ProcessCatalog(), swissknife::CommandMigrate::StatsMigrationWorker::RepairStatisticsCounters(), SqlContainsReference::RetrieveAnswer(), history::SqlListBranches::RetrieveBranch(), SqlCountReferences::RetrieveCount(), history::SqlCountTags::RetrieveCount(), SqlListReferences::RetrieveHash(), history::SqlRecycleBinList::RetrieveHash(), catalog::SqlCatalog::RetrieveMd5(), and SqlGetTimestamp::RetrieveTimestamp().

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int sqlite::Sql::RetrieveNullableInt	(	const int	idx_column,
		const int	val_null
	)		const

inline

Definition at line 442 of file sql.h.

std::string sqlite::Sql::RetrieveString ( const int idx_column ) const

inline

Definition at line 456 of file sql.h.

Referenced by history::SqlListBranches::RetrieveBranch(), SqlListReferences::RetrieveHash(), history::SqlGetHashes::RetrieveHash(), and history::SqlRecycleBinList::RetrieveHash().

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const unsigned char* sqlite::Sql::RetrieveText ( const int idx_column ) const

inline

Definition at line 453 of file sql.h.

Referenced by DebugResultTable(), catalog::SqlCatalog::RetrieveHashHex(), and RetrieveString().

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int sqlite::Sql::RetrieveType ( const int idx_column ) const

inline

Definition at line 421 of file sql.h.

Referenced by history::SqlListBranches::RetrieveBranch().

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bool sqlite::Sql::Successful ( ) const

inlineprotected

Checks the last action for success

Returns: true if last action succeeded otherwise false

Definition at line 494 of file sql.h.

Referenced by BindBlob(), BindBlobTransient(), BindDouble(), BindInt(), BindInt64(), BindNull(), BindText(), Execute(), Init(), Reset(), and ~Sql().

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Member Data Documentation

sqlite3* sqlite::Sql::database_

private

Definition at line 511 of file sql.h.

Referenced by DeferredInit(), GetLastErrorMsg(), Init(), and LazyInit().

int sqlite::Sql::last_error_code_

private

Definition at line 514 of file sql.h.

Referenced by BindBlob(), BindBlobTransient(), BindDouble(), BindInt(), BindInt64(), BindNull(), BindText(), Execute(), FetchRow(), GetLastError(), Init(), Reset(), Successful(), and ~Sql().

const char* sqlite::Sql::query_string_

private

Definition at line 513 of file sql.h.

Referenced by DeferredInit(), and LazyInit().

sqlite3_stmt* sqlite::Sql::statement_

private

Definition at line 512 of file sql.h.

Referenced by BindBlob(), BindBlobTransient(), BindDouble(), BindInt(), BindInt64(), BindNull(), BindText(), DebugResultTable(), Execute(), FetchRow(), Init(), IsInitialized(), Reset(), RetrieveBlob(), RetrieveBytes(), RetrieveDouble(), RetrieveInt(), RetrieveInt64(), RetrieveNullableInt(), RetrieveText(), RetrieveType(), and ~Sql().

The documentation for this class was generated from the following files:

/home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/sql.h
/home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/sql.cc
/home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/sql_impl.h

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation