mrv.maya.nt.persistence

Module persistence

Classes

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Storage Plugin

StoragePluginNode
Base Class defining the storage node data interfaces

PyPickleData
Allows to access a pickled data object natively within a maya file.

Functions

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Initialization

__initialize(nodes_module)
Assure our plugin is loaded - called during module intialization.

source code

Storage Plugin

createStorageAttribute(dataType, name_prefix='')
This method creates an Attribute in a configuration suitable to be used with the StorageBase interface. source code

initStoragePluginNodeAttrs()
Called to initialize the attributes of the storage node

source code

initializePlugin(mobject)

source code

uninitializePlugin(mobject)

source code

Variables

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log = logging.getLogger('mrv.maya.nt.persistence')

persistence_enabled_envvar = "MRV_PERSISTENCE_ENABLED"

_should_initialize_plugin = int(os.environ.get(persistence_ena...

Function Details

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__initialize(nodes_module)

source code

Assure our plugin is loaded - called during module intialization. Its a tough time to run, it feels more like bootstrapping as we initialize ourselves although the system is not quite there yet.

createStorageAttribute(dataType, name_prefix='')

source code

This method creates an Attribute in a configuration suitable to be used with the StorageBase interface.

Parameters:

dataType - the type of the typed attribute - either MTypeID or MFnData enumeration An MTypeID must point to a valid and already registered plugin data. In order for the StorageBase interface to work, it must by PyPickleData.kPluginDataId.
name_prefix - string to be used as prefix for all short and long attribute names. Useful if you want to have more than one storage attributes.

Returns:

attribute api object of its master compound attribute

Note: this allows your own plugin node to receive storage compatibility

Variables Details

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_should_initialize_plugin

Value:

int(os.environ.get(persistence_enabled_envvar, False))