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Java Source Code / Java Documentation » Database DBMS » db4o 6.4 » com.db4o.ext

Source Cross Reference

Class Diagram

Java Document (Java Doc)

com.db4o.ext .ObjectInfo

All known Subclasses:   com.db4o.internal .ObjectReference,  com.db4o.internal .LazyObjectReference,
ObjectInfo
public interface ObjectInfo (Code)
interface to the internal reference that an ObjectContainer holds for a stored object.

Method Summary
public long getInternalID()
     returns the internal db4o ID.
public Object getObject()
     returns the object that is referenced.
public Db4oUUID getUUID()
     returns a UUID representation of the referenced object.
public long getVersion()
     returns the transaction serial number ("version") the referenced object was stored with last.

Method Detail
getInternalID
public long getInternalID()(Code)
returns the internal db4o ID.

getObject
public Object getObject()(Code)
returns the object that is referenced.

This method may return null, if the object has been garbage collected. the referenced object or null, if the object hasbeen garbage collected.

getUUID
public Db4oUUID getUUID()(Code)
returns a UUID representation of the referenced object. UUID generation has to be turned on, in order to be able to use this feature: com.db4o.config.Configuration.generateUUIDs(int) the UUID of the referenced object.

getVersion
public long getVersion()(Code)
returns the transaction serial number ("version") the referenced object was stored with last. Version number generation has to be turned on, in order to be able to use this feature: com.db4o.config.Configuration.generateVersionNumbers(int) the version number.

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