ERXMemoryMigrationLock Class Reference

Inherits er::extensions::migration::IERXMigrationLock.

Collaboration diagram for ERXMemoryMigrationLock:

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List of all members.

Public Member Functions
	ERXMemoryMigrationLock ()
void	setVersionNumber (EOAdaptorChannel channel, EOModel model, int versionNumber)
boolean	tryLock (EOAdaptorChannel channel, EOModel model, String lockOwnerName)
void	unlock (EOAdaptorChannel channel, EOModel model)
int	versionNumber (EOAdaptorChannel channel, EOModel model)
Protected Member Functions
int	initialVersionForModel (EOModel model)
Private Attributes
NSMutableDictionary< String, Integer >	_modelVersions

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Detailed Description

This stub exists to make memory migrations work.

Author:

mschrag

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Constructor & Destructor Documentation

ERXMemoryMigrationLock

(

)

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Member Function Documentation

int initialVersionForModel

(

EOModel

model

)

[protected]

void setVersionNumber	(	EOAdaptorChannel	channel,
		EOModel	model,
		int	versionNumber
	)

Sets the current version number of the named model.

Parameters:

	channel	the adaptor channel associated with this process
	model	the model to set version information on
	versionNumber	the new version number

Implements IERXMigrationLock.

boolean tryLock	(	EOAdaptorChannel	channel,
		EOModel	model,
		String	lockOwnerName
	)

Attempts to retrieve a lock on the migration process for the named model. A lockOwnerName is provided that provides a simple mechanism to recover from a stale lock. If the lock owner name passed in matches the current lock owner name, then the lock is acquired.

Parameters:

	channel	the adaptor channel associated with this process
	model	the model to try to lock
	lockOwnerName	the name of the lock owner

Returns:

true if the lock was acquired, false if it was not

Implements IERXMigrationLock.

void unlock	(	EOAdaptorChannel	channel,
		EOModel	model
	)

Unlocks the given model. This should only be called if you acquired a lock with tryLock(..).

Parameters:

	channel	the adaptor channel associated with this process
	model	the model to unlock

Implements IERXMigrationLock.

int versionNumber	(	EOAdaptorChannel	channel,
		EOModel	model
	)

Returns the current version number of the named model.

Parameters:

	channel	the adaptor channel associated with this process
	model	the model to lookup version information on

Returns:

the current version number of the named model

Implements IERXMigrationLock.

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Member Data Documentation

NSMutableDictionary<String, Integer> _modelVersions [private]

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

• /opt/source/Wonder/Frameworks/Core/ERExtensions/Sources/er/extensions/migration/ERXMemoryMigrationLock.java