Java Doc for Db4oDatabase.java in  » Database-DBMS » db4o-6.4 » com » db4o » ext » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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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) 


java.lang.Object
   com.db4o.ext.Db4oDatabase

Db4oDatabase
public class Db4oDatabase implements Db4oType,Internal4(Code)
Class to identify a database by it's signature.

db4o UUID handling uses a reference to the Db4oDatabase object, that represents the database an object was created on.


Field Summary
final public static  intSTATIC_ID
    
final public static  Db4oDatabaseSTATIC_IDENTITY
    
public  byte[]i_signature
    
public  longi_uuid
     Field is public for implementation reasons, DO NOT TOUCH! This field is badly named, it really is the creation time.

Constructor Summary
public  Db4oDatabase()
    
public  Db4oDatabase(byte[] signature, long creationTime)
    

Method Summary
public  intbind(Transaction trans)
     make sure this Db4oDatabase is stored.
public  booleanequals(Object obj)
     comparison by signature.
public static  Db4oDatabasegenerate()
     generates a new Db4oDatabase object with a unique signature.
public  longgetCreationTime()
    
public  intgetID(Transaction trans)
     gets the db4o ID, and may cache it for performance reasons.
public  byte[]getSignature()
    
public  inthashCode()
    
public  booleanisOlderThan(Db4oDatabase peer)
    
public  Db4oDatabasequery(Transaction trans)
    
public  StringtoString()
    

Field Detail
STATIC_ID
final public static int STATIC_ID(Code)



STATIC_IDENTITY
final public static Db4oDatabase STATIC_IDENTITY(Code)



i_signature
public byte[] i_signature(Code)
Field is public for implementation reasons, DO NOT TOUCH!



i_uuid
public long i_uuid(Code)
Field is public for implementation reasons, DO NOT TOUCH! This field is badly named, it really is the creation time.




Constructor Detail
Db4oDatabase
public Db4oDatabase()(Code)
constructor for persistence



Db4oDatabase
public Db4oDatabase(byte[] signature, long creationTime)(Code)
constructor for comparison and to store new ones




Method Detail
bind
public int bind(Transaction trans)(Code)
make sure this Db4oDatabase is stored. Return the ID.



equals
public boolean equals(Object obj)(Code)
comparison by signature.



generate
public static Db4oDatabase generate()(Code)
generates a new Db4oDatabase object with a unique signature.



getCreationTime
public long getCreationTime()(Code)



getID
public int getID(Transaction trans)(Code)
gets the db4o ID, and may cache it for performance reasons. the db4o ID for the ObjectContainer



getSignature
public byte[] getSignature()(Code)
returns the unique signature



hashCode
public int hashCode()(Code)



isOlderThan
public boolean isOlderThan(Db4oDatabase peer)(Code)



query
public Db4oDatabase query(Transaction trans)(Code)
find a Db4oDatabase with the same signature as this one



toString
public String toString()(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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