org.neodatis.odb.impl.main

Class ODBExtImpl

java.lang.Object

org.neodatis.odb.impl.main.ODBExtImpl

All Implemented Interfaces:

ODBExt

public class ODBExtImpl
extends java.lang.Object
implements ODBExt

Constructor Summary

Constructors

Constructor and Description
ODBExtImpl(IStorageEngine storageEngine)

Method Summary

Modifier and Type	Method and Description
ExternalOID	convertToExternalOID(OID oid) Convert an OID to External OID
TransactionId	getCurrentTransactionId() Gets the current transaction Id
DatabaseId	getDatabaseId() Get the Database ID
long	getObjectCreationDate(OID oid) Returns the object creation date in ms since 1/1/1970
ExternalOID	getObjectExternalOID(java.lang.Object object) Gets the external OID of an Object.
long	getObjectUpdateDate(OID oid, boolean useCache) Returns the object last update date in ms since 1/1/1970
int	getObjectVersion(OID oid, boolean useCache) Returns the object version of the object that has the specified OID
OID	replace(OID oid, java.lang.Object o) Replace the object with the specific OID by the object passed as a parameter

Methods inherited from class java.lang.Object

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

Constructor Detail

ODBExtImpl

public ODBExtImpl(IStorageEngine storageEngine)

Method Detail

convertToExternalOID

public ExternalOID convertToExternalOID(OID oid)

Description copied from interface: ODBExt

Convert an OID to External OID

Specified by:

convertToExternalOID in interface ODBExt

Returns:

The external OID

getCurrentTransactionId

public TransactionId getCurrentTransactionId()

Description copied from interface: ODBExt

Gets the current transaction Id

Specified by:

getCurrentTransactionId in interface ODBExt

Returns:

The current transaction Id

getDatabaseId

public DatabaseId getDatabaseId()

Description copied from interface: ODBExt

Get the Database ID

Specified by:

getDatabaseId in interface ODBExt

Returns:

getObjectExternalOID

public ExternalOID getObjectExternalOID(java.lang.Object object)

Description copied from interface: ODBExt

Gets the external OID of an Object. The external OID contains the ID of the database + the oid of the object. The External OID can be used to identify objects outside the ODB database as it should be unique across databases. It can be used for example to implement a replication process.

Specified by:

getObjectExternalOID in interface ODBExt

Returns:

getObjectVersion

public int getObjectVersion(OID oid,
                            boolean useCache)

Description copied from interface: ODBExt

Returns the object version of the object that has the specified OID

Specified by:

getObjectVersion in interface ODBExt

useCache - if false, force a disk read. else use the version that has already been loaded in the cache

Returns:

getObjectCreationDate

public long getObjectCreationDate(OID oid)

Description copied from interface: ODBExt

Returns the object creation date in ms since 1/1/1970

Specified by:

getObjectCreationDate in interface ODBExt

Returns:

The creation date

getObjectUpdateDate

public long getObjectUpdateDate(OID oid,
                                boolean useCache)

Description copied from interface: ODBExt

Returns the object last update date in ms since 1/1/1970

Specified by:

getObjectUpdateDate in interface ODBExt

useCache - if false, force a disk read. else use the date that has already been loaded in the cache

Returns:

The last update date

replace

public OID replace(OID oid,
                   java.lang.Object o)

Description copied from interface: ODBExt

Replace the object with the specific OID by the object passed as a parameter

Specified by:

replace in interface ODBExt

Returns: