File	Doc	Category	Size	Date	Package
PersistentSet.java	API Doc	Example	3182	Mon Feb 03 07:10:18 GMT 1997	imaginary.persist

PersistentSet

• java.lang.Object
  • imaginary.util.Observable

Fields Summary
private Vector	objects Instance attributes

Constructors Summary
public PersistentSet() Creates a new PersistentSet. super();

Methods Summary
public synchronized void	addPersistent(Persistent p) Called by its peer to add a restored Persistent to the set. param p the Persistent to be added to the set if( !objects.contains(p) ) { objects.addElement(p); }
protected abstract PersistentSetPeer	getPersistentSetPeer() Subclasses must implement this method in order to tell this class what to use for a PersistentSetPeer. return the peer for this set
public synchronized RemotePersistent[]	getPersistents() Allows external objects to get a list of the Persistent objects in this set. return the Persistent objects in the set RemotePersistent[] persistents = new RemotePersistent[objects.size()]; objects.copyInto(persistents); return persistents;
public synchronized void	restore() Loads the set without any query criteria. In other words, it loads all objects of a given type. exception imaginary.persist.PersistenceException An error occurred in accessing the database. Transaction t = Transaction.getTransaction(); t.restore(this, null);
public synchronized void	restore(java.util.Hashtable h) Loads a set of persistent objects based on query criteria listed in a the Hashtable values. param h the values for filtering the objects of a specific type exception imaginary.persist.PersistenceException An error occurred in accessing the database. Transaction t = Transaction.getTransaction(); t.restore(this, h);
public synchronized void	restore(Transaction trans, java.util.Hashtable data) Loads a set of persistent objects based on query criteria listed in a the Hashtable values. param trans the Transaction object to use for the restore param data the values for filtering the objects of a specific type exception imaginary.persist.PersistenceException An error occurred in accessing the database. getPersistentSetPeer().restore(this, trans, data);