com.antelmann.db
Class AbstractDBEntry

java.lang.Object
  com.antelmann.db.AbstractDBEntry

All Implemented Interfaces:

DBEntry, Serializable

Direct Known Subclasses:

CalendarEntry, CardHeader, Category.Entry, Country, DefaultEntryRelationship, GeoLocation, GPersonalBlogEntry, Keyword, LockEntry, MessageEntry, PropertyEntryImpl, ProtocolNoteEntry, Stub, YouTubeVideo

public abstract class AbstractDBEntry
extends Object
implements DBEntry

implements common functionality, including immutable ID and hashCode/equals methods based on the ID (and class).

Since:

12. Juli 2007, 14:52

Author:

Holger Antelmann

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.antelmann.db.DBEntry

ENTRY_FLAVOR, ENTRY_LIST_FLAVOR

Constructor Summary

AbstractDBEntry(Object id)

Method Summary

boolean	equals(Object obj)
Object	getID() returns a immutable, unique and persistent capable identifier for this resource.
int	hashCode()
static int	hashEntry(DBEntry entry)
static boolean	sameEntry(Object obj1, Object obj2) requires DBEntry instances to not throw a ClassCastException
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractDBEntry

public AbstractDBEntry(Object id)

Method Detail

getID

public final Object getID()

Description copied from interface: DBEntry

returns a immutable, unique and persistent capable identifier for this resource. The returned value is unique throughout all instances of this class within a given system or database, respectively. The return value is practically always a Serializable for entries that are persistent.

Specified by:

getID in interface DBEntry

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

sameEntry

public static boolean sameEntry(Object obj1,
                                Object obj2)

requires DBEntry instances to not throw a ClassCastException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

hashEntry

public static int hashEntry(DBEntry entry)

toString

public String toString()

Overrides:

toString in class Object