LevelDB Class Reference

Public Member Functions
	__construct ($name, array $options=[ 'create_if_missing'=> true, 'error_if_exists'=> false, 'paranoid_checks'=> false, 'block_cache_size'=> 8 *(2<< 20), 'write_buffer_size'=> 4<< 20, 'block_size'=> 4096, 'max_open_files'=> 1000, 'block_restart_interval'=> 16, 'compression'=> LEVELDB_SNAPPY_COMPRESSION, 'comparator'=> NULL,], array $read_options=[ 'verify_check_sum'=> false, 'fill_cache'=> true,], array $write_options=['sync'=> false])
	get ($key, array $read_options=[])
	set ($key, $value, array $write_options=[])
	put ($key, $value, array $write_options=[])
	delete ($key, array $write_options=[])
	write (LevelDBWriteBatch $batch, array $write_options=[])
	getProperty ($name)
	getApproximateSizes ($start, $limit)
	compactRange ($start, $limit)
	close ()
	getIterator (array $options=[])
	getSnapshot ()

Static Public Member Functions
static	destroy ($name, array $options=[])
static	repair ($name, array $options=[])

Constructor & Destructor Documentation

__construct()

__construct	(		$name,
		array	$options = [ 'create_if_missing' =,
		true	,
		'error_if_exists'	,
		false	,
		'paranoid_checks'	,
		false	,
		'block_cache_size'	,
		8 *	2<< 20,
		'write_buffer_size'	,
		4<<	20,
		'block_size'	,
		4096	,
		'max_open_files'	,
		1000	,
		'block_restart_interval'	,
		16	,
		'compression'	,
		LEVELDB_SNAPPY_COMPRESSION	,
		'comparator'	,
		NULL	,
		]	,
		array	$read_options = [ 'verify_check_sum' =,
		false	,
		'fill_cache'	,
		true	,
		]	,
		array	$write_options = [  'sync' =,
		false]
	)

Parameters

string	$name	Path to database
array	$options
array	$read_options
array	$write_options

      {}

Member Function Documentation

close()

close

(

)

{}

compactRange()

compactRange	(		$start,
			$limit
	)

{}

delete()

delete	(		$key,
		array	$write_options = []
	)

Parameters

string	$key
array	$write_options

Returns

bool

{}

destroy()

static destroy (   $name, array  $options = []  )

static

{}

get()

get	(		$key,
		array	$read_options = []
	)

Parameters

string	$key
array	$read_options

Returns

string|bool

{}

getApproximateSizes()

getApproximateSizes	(		$start,
			$limit
	)

{}

getIterator()

getIterator

(

array

$options = []

)

Parameters

array

$options

Returns

LevelDBIterator

{}

getProperty()

getProperty

(

$name

)

Valid properties:

• leveldb.stats: returns the status of the entire db
• leveldb.num-files-at-level: returns the number of files for each level. For example, you can use leveldb.num-files-at-level0 the number of files for zero level.
• leveldb.sstables: returns current status of sstables

Parameters

string

$name

Returns

mixed

{}

getSnapshot()

getSnapshot

(

)

Returns

LevelDBSnapshot

{}

put()

put	(		$key,
			$value,
		array	$write_options = []
	)

Parameters

string	$key
string	$value
array	$write_options

{}

repair()

static repair (   $name, array  $options = []  )

static

{}

set()

set	(		$key,
			$value,
		array	$write_options = []
	)

Alias of LevelDB::put()

Parameters

string	$key
string	$value
array	$write_options

{}

write()

write	(	LevelDBWriteBatch	$batch,
		array	$write_options = []
	)

Executes all of the operations added in the write batch.

Parameters

LevelDBWriteBatch	$batch
array	$write_options

{}

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

• src/spl/stubs/leveldb.php