SerializedMessageIndex Class Reference

Storage on serialized file. More...

Inheritance diagram for SerializedMessageIndex:

Public Member Functions
	retrieve ( $forRebuild=false)
Public Member Functions inherited from MessageIndex
	getKeys ()
	rebuild (float $timestamp=null)
	Creates the index from scratch.
	getStatusCacheKey ()
	storeInterim (MessageGroup $group, array $newKeys)

Protected Member Functions
	store (array $array, array $diff)
Protected Member Functions inherited from MessageIndex
	get ( $key)
	Looks up the stored value for single key.
	lock ()
	unlock ()
	clearMessageGroupStats (array $diff)
	Purge stuff when set of keys have changed.
	checkAndAdd (&$hugearray, MessageGroup $g, $ignore=false)
	serialize ( $data)
	These are probably slower than serialize and unserialize, but they are more space efficient because we only need strings and arrays.
	unserialize ( $data)

Protected Attributes
	$index
	$filename = 'translate_messageindex.ser'
Protected Attributes inherited from MessageIndex
	$interimCache

Additional Inherited Members
Static Public Member Functions inherited from MessageIndex
static	singleton ()
static	setInstance (self $instance)
	Override the global instance, for testing.
static	getGroupIds (MessageHandle $handle)
	Retrieves a list of groups given MessageHandle belongs to.
static	getPrimaryGroupId (MessageHandle $handle)
static	getArrayDiff (array $old, array $new)
	Compares two associative arrays.
Static Protected Attributes inherited from MessageIndex
static	$instance

Detailed Description

Storage on serialized file.

This serializes the whole array. Because this format can preserve the values which are stored as references inside the array, this is the most space efficient storage method and fastest when you want the full index.

Unfortunately when the size of index grows to about 50000 items, even though it is only 3,5M on disk, it takes 35M when loaded into memory and the loading can take more than 0,5 seconds. Because usually we need to look up only few keys, it is better to use another backend which provides random access - this backend doesn't support that.

Definition at line 463 of file MessageIndex.php.

Member Function Documentation

retrieve()

SerializedMessageIndex::retrieve

(

$forRebuild = false

)

Parameters

bool

$forRebuild

Returns

array

Reimplemented from MessageIndex.

Definition at line 472 of file MessageIndex.php.

store()

SerializedMessageIndex::store ( array $array, array $diff )

protected

Reimplemented from MessageIndex.

Definition at line 487 of file MessageIndex.php.

Member Data Documentation

$filename

SerializedMessageIndex::$filename = 'translate_messageindex.ser'

protected

Definition at line 466 of file MessageIndex.php.

$index

SerializedMessageIndex::$index

protected

Definition at line 465 of file MessageIndex.php.

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

• utils/MessageIndex.php