kodo.runtime
Interface PCData

All Superinterfaces:

Serializable

All Known Subinterfaces:

DataCachePCData, PCDataGenerator.DynamicPCData

All Known Implementing Classes:

AbstractPCData

public interface PCData

extends Serializable

Holds data about a single persistence capable instance. This interface is used in the caching framework, and may also be used by simple store manager back-ends to hold persistent state.

Method Summary

Object	getData(int i) Return the data stored in the given field index.
Object	getId() Return the id of this instance.
Object	getImplData() Returns the instance-level impl data, or null if none.
Class	getType() Return the type of this instance.
Object	getVersion() Returns the current version object that this data was loaded from.
boolean	isLoaded(int i) Whether the given field index has stored data.
void	load(KodoStateManager sm, BitSet fields, FetchConfiguration fetch, Object context) Loads some or all of the marked fields from the cache into the given state manager.
void	load(KodoStateManager sm, FetchConfiguration fetch, Object context) Loads all fields that are currently stored in the cache into the given state manager.
void	setImplData(Object val) Sets the stored instance-level impl data.
void	setVersion(Object version) Sets the current version object that this data was loaded from.
void	store(KodoStateManager sm) Store all loaded fields of the state manager.
void	store(KodoStateManager sm, BitSet fields) Store the given fields from the state manager.

Method Detail

getId

public Object getId()

Return the id of this instance.

getType

public Class getType()

Return the type of this instance.

getImplData

public Object getImplData()

Returns the instance-level impl data, or null if none.

setImplData

public void setImplData(Object val)

Sets the stored instance-level impl data.

getVersion

public Object getVersion()

Returns the current version object that this data was loaded from.

setVersion

public void setVersion(Object version)

Sets the current version object that this data was loaded from.

load

public void load(KodoStateManager sm,
                 FetchConfiguration fetch,
                 Object context)

Loads all fields that are currently stored in the cache into the given state manager.

Parameters:

sm - the state manager to load

fetch - the fetch configuration to use for loading related objects

context - current context information

load

public void load(KodoStateManager sm,
                 BitSet fields,
                 FetchConfiguration fetch,
                 Object context)

Loads some or all of the marked fields from the cache into the given state manager.

Parameters:

sm - the state manager to load

fields - the fields to load; clear the bits for the fields that are successfully loaded

fetch - the fetch configuration to use for loading related objects

context - current context information

store

public void store(KodoStateManager sm)

Store all loaded fields of the state manager.

store

public void store(KodoStateManager sm,
                  BitSet fields)

Store the given fields from the state manager.

getData

public Object getData(int i)

Return the data stored in the given field index.

isLoaded

public boolean isLoaded(int i)

Whether the given field index has stored data.