2 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
3 * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, G Barton, M Clamp, S Searle
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
11 * Jalview is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
14 * PURPOSE. See the GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
18 package jalview.io.vamsas;
20 import uk.ac.vamsas.client.Vobject;
23 * Implement the basic logic for synchronising changes to or from the Vamsas
24 * Document. This is a more generic and normalised framework than the one
25 * implemented in DatastoreItem, but probably more tedious to implement. ..
30 public abstract class LocalDocSyncObject extends DatastoreItem
34 * @return null or the local object that is being worked on.
36 public abstract Object getLObject();
40 * @return null or the document object that is being worked on
42 public abstract Vobject getVObject();
45 * endpoint for synchronize when all opreations are finished.
47 public abstract void nextObject();
50 * called if the local object can be safely updated from the bound document
51 * object. public abstract void updateToDoc();
55 * called if the associated document object can be safely updated with the
56 * local changes public abstract void updateToDoc();
60 * @return true if the local object is modified
62 public abstract boolean locallyModified();
66 * @return true if the bound document object is modified
68 public abstract boolean documentModified();
72 * @return true if the document object is locked w.r.t. this object's update.
74 public abstract boolean documentObjectLocked();
78 * @return a new datastore item instance which binds the local object to a new
81 public abstract LocalDocSyncObject newDocumentObject(); // could make this
83 // constructor(Lobject)
87 * @return a new datastore item instance which binds the document object to a
90 public abstract LocalDocSyncObject newLocalObject(); // make this
92 // constructor(Vobject)
95 * apply the update/commit logic as defined in the vamsas paper
97 * @param documentIsUpdated
98 * true if a document update event is being handled
100 public void synchronize(boolean documentIsUpdated)
102 Object Lobject = getLObject();
103 Vobject Vobject = getVObject();
106 // no local binding for document object
107 newLocalObject().synchronize(documentIsUpdated);
112 // no document binding for local object
113 newDocumentObject().synchronize(documentIsUpdated);
115 // Check binding is valid
116 if (getjv2vObj(Lobject) != Vobject)
118 // no local binding for document object
119 newLocalObject().synchronize(documentIsUpdated);
120 // no document binding for local object
121 newDocumentObject().synchronize(documentIsUpdated);