com.whitestein.lsps.engine.state

Class PersistentIdAllocator

java.lang.Object

com.whitestein.lsps.engine.state.PersistentIdAllocator

All Implemented Interfaces:

ModelInstanceResourceAllocator

public class PersistentIdAllocator
extends Object
implements ModelInstanceResourceAllocator

Persistent implementation of the ModelInstanceResourceAllocator. The information about allocated values is stored in database. This allocator should be used for model instances from which detached copies are created.

Author:

bhl

Field Summary

Fields

Modifier and Type	Field and Description
static long	ALLOCATION_SIZE Size of allocated value ids.

Constructor Summary

Constructors

Constructor and Description
PersistentIdAllocator(ModelInstanceUtilsService modelInstanceUtilsService) Creates new instance.

Method Summary

Modifier and Type	Method and Description
AllocatedModelInstanceResources	allocateDetachmentAndValueIds(ModelInstance modelInstance) Allocates next id for detachment in the model instance.
AllocatedModelInstanceResources	allocateValueIds(ModelInstance modelInstance) Allocates new range of ids for values in the model instance.
long	getAllocationSize() Returns allocation size for value ids.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ALLOCATION_SIZE

public static final long ALLOCATION_SIZE

Size of allocated value ids.

See Also:

Constant Field Values

Constructor Detail

PersistentIdAllocator

public PersistentIdAllocator(ModelInstanceUtilsService modelInstanceUtilsService)

Creates new instance.

Parameters:

modelProviderService -

Method Detail

getAllocationSize

public long getAllocationSize()

Description copied from interface: ModelInstanceResourceAllocator

Returns allocation size for value ids.

Specified by:

getAllocationSize in interface ModelInstanceResourceAllocator

Returns:

allocation size for value ids

allocateValueIds

public AllocatedModelInstanceResources allocateValueIds(ModelInstance modelInstance)

Description copied from interface: ModelInstanceResourceAllocator

Allocates new range of ids for values in the model instance.

Specified by:

allocateValueIds in interface ModelInstanceResourceAllocator

Returns:

new range of ids for values in the model instance.

allocateDetachmentAndValueIds

public AllocatedModelInstanceResources allocateDetachmentAndValueIds(ModelInstance modelInstance)

Description copied from interface: ModelInstanceResourceAllocator

Allocates next id for detachment in the model instance.

Specified by:

allocateDetachmentAndValueIds in interface ModelInstanceResourceAllocator

Returns:

next id for detachment in the model instance