Package es.bsc.dataclay.loader

Class ExecutionObjectLoader

java.lang.Object

es.bsc.dataclay.loader.DataClayObjectLoader

es.bsc.dataclay.loader.ExecutionObjectLoader

public class ExecutionObjectLoader
extends DataClayObjectLoader

This class is responsable to create DataClayObjects and load them with data coming from different resources. All possible constructions of DataClayObject should be included here. All possible "filling instance" use-cases should be managed here.

Field Summary

Fields inherited from class es.bsc.dataclay.loader.DataClayObjectLoader

DEBUG_ENABLED, logger

Constructor Summary

Constructors

Constructor	Description
ExecutionObjectLoader(DataServiceRuntime theruntime)	Constructor

Method Summary

Modifier and Type	Method	Description
void	deserializeDataIntoInstance(DataClayObject instance, ObjectWithDataParamOrReturn data, Map<MetaClassID,byte[]> ifaceBitMaps)	Deserialize data into instance.
DataClayExecutionObject	getOrNewPersistentInstance(MetaClassID classID, ObjectID objectID, BackendID hint)	Check if instance exists in objects map or create a new PERSISTENT instance if needed
DataClayExecutionObject	getOrNewPersistentInstanceFromDB(ObjectID objectID, boolean retry)	Get object from memory or database and WAIT in case we are still waiting for it to be persisted.
protected DataClayRuntime	getRuntime()	Get runtime
void	loadDataClayObjectFromDb(DataClayExecutionObject objectToFill, boolean retry)	Load DataClayObject from Database
DataClayExecutionObject	newInstance(MetaClassID classID, ObjectID objectID)	Create a new instance using proper class loader

Methods inherited from class es.bsc.dataclay.loader.DataClayObjectLoader

getOrNewAndLoadVolatile, newInstanceInternal

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionObjectLoader

public ExecutionObjectLoader(DataServiceRuntime theruntime)

Constructor

Parameters:

theruntime - Runtime being managed

Method Detail

getRuntime

protected DataClayRuntime getRuntime()

Description copied from class: DataClayObjectLoader

Get runtime

Specified by:

getRuntime in class DataClayObjectLoader

Returns:

The runtime being managed.

newInstance

public DataClayExecutionObject newInstance(MetaClassID classID,
                                           ObjectID objectID)

Description copied from class: DataClayObjectLoader

Create a new instance using proper class loader

Specified by:

newInstance in class DataClayObjectLoader

Parameters:

classID - ID of class

objectID - ID of object

Returns:

Instance

getOrNewPersistentInstance

public DataClayExecutionObject getOrNewPersistentInstance(MetaClassID classID,
                                                          ObjectID objectID,
                                                          BackendID hint)

Check if instance exists in objects map or create a new PERSISTENT instance if needed

Overrides:

getOrNewPersistentInstance in class DataClayObjectLoader

Parameters:

classID - ID of the class in case it is needed (not need to query) if null, look for class id in metadata.

objectID - ID of object

hint - Can be null. Hint in case object is a volatile in another DS and we need information.

Returns:

Instance

deserializeDataIntoInstance

public void deserializeDataIntoInstance(DataClayObject instance,
                                        ObjectWithDataParamOrReturn data,
                                        Map<MetaClassID,byte[]> ifaceBitMaps)

Deserialize data into instance.

Specified by:

deserializeDataIntoInstance in class DataClayObjectLoader

Parameters:

instance - Instance to be filled.

data - Data

ifaceBitMaps - Interface bitmaps

getOrNewPersistentInstanceFromDB

public DataClayExecutionObject getOrNewPersistentInstanceFromDB(ObjectID objectID,
                                                                boolean retry)

Get object from memory or database and WAIT in case we are still waiting for it to be persisted.

Parameters:

objectID - ID of the object to get

retry - Indicates if we should retry and wait.

Returns:

The the object.

loadDataClayObjectFromDb

public void loadDataClayObjectFromDb(DataClayExecutionObject objectToFill,
                                     boolean retry)

Load DataClayObject from Database

Parameters:

objectToFill - DataClayObject instance to fill

retry - Indicates retry loading in case it is not in db.