Examples of org.apache.cayenne.graph.GraphDiff

org.apache.cayenne.graph.GraphDiff
Represents a change in an object graph. This can be a simple change (like a node property update) or a composite change that consists of a number of smaller changes. @since 1.2

            assertNotNull(parentP1);
            assertEquals(PersistenceState.MODIFIED, parentP1.getPersistenceState());
            assertNull(parentP1.getTable1());


            // check that arc changes got recorded in the parent context
            GraphDiff diffs = context.internalGraphManager().getDiffs();
            final int[] arcDiffs = new int[1];


            diffs.apply(new GraphChangeHandler() {


                public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {
                    arcDiffs[0]++;
                }

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                    .getPersistenceState());


            assertNotNull(parentHollow);


            // check that arc changes got recorded in the parent context
            GraphDiff diffs = context.internalGraphManager().getDiffs();


            final int[] modifiedProperties = new int[1];


            diffs.apply(new GraphChangeHandler() {


                public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {


                }

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        assertSame(masterParent, depParent.getTable1());
        assertTrue(masterParent.getTable2Array().contains(depParent));


        // check that arc changes got recorded in the parent context
        GraphDiff diffs = context.internalGraphManager().getDiffs();


        final int[] arcDiffs = new int[1];
        final int[] newNodes = new int[1];


        diffs.apply(new GraphChangeHandler() {


            public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {
                arcDiffs[0]++;
            }

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        assertSame(masterParent, depParent.getToMaster());
        assertSame(depParent, masterParent.getToDependent());


        // check that arc changes got recorded in the parent context
        GraphDiff diffs = context.internalGraphManager().getDiffs();


        final int[] arcDiffs = new int[1];
        final int[] newNodes = new int[1];


        diffs.apply(new GraphChangeHandler() {


            public void arcCreated(Object nodeId, Object targetNodeId, Object arcId) {
                arcDiffs[0]++;
            }

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        int syncType = cascade
                ? DataChannel.FLUSH_CASCADE_SYNC
                : DataChannel.FLUSH_NOCASCADE_SYNC;


        GraphDiff commitDiff = null;


        synchronized (graphManager) {


            if (graphManager.hasChanges()) {


                ValidationResult result = new ValidationResult();
                Iterator<?> it = graphManager.dirtyNodes().iterator();
                while (it.hasNext()) {
                    Persistent p = (Persistent) it.next();
                    if (p instanceof Validating) {
                        switch (p.getPersistenceState()) {
                            case PersistenceState.NEW:
                                ((Validating) p).validateForInsert(result);
                                break;
                            case PersistenceState.MODIFIED:
                                ((Validating) p).validateForUpdate(result);
                                break;
                            case PersistenceState.DELETED:
                                ((Validating) p).validateForDelete(result);
                                break;
                        }
                    }
                }


                if (result.hasFailures()) {
                    throw new ValidationException(result);
                }


                graphManager.graphCommitStarted();


                GraphDiff changes = graphManager.getDiffsSinceLastFlush();


                try {
                    commitDiff = channel.onSync(this, changes, syncType);
                }
                catch (Throwable th) {

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    @Override
    public void rollbackChanges() {
        synchronized (graphManager) {
            if (graphManager.hasChanges()) {


                GraphDiff diff = graphManager.getDiffs();
                graphManager.graphReverted();


                channel.onSync(this, diff, DataChannel.ROLLBACK_CASCADE_SYNC);
                fireDataChannelRolledback(this, diff);
            }

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    @Override
    public void rollbackChangesLocally() {
        synchronized (graphManager) {
            if (graphManager.hasChanges()) {
                GraphDiff diff = graphManager.getDiffs();
                graphManager.graphReverted();


                fireDataChannelRolledback(this, diff);
            }
        }

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     * @since 1.2
     */
    @Override
    public void rollbackChangesLocally() {
        if (objectStore.hasChanges()) {
            GraphDiff diff = getObjectStore().getChanges();


            getObjectStore().objectsRolledBack();
            fireDataChannelRolledback(this, diff);
        }
    }

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     */
    @Override
    public void rollbackChanges() {


        if (objectStore.hasChanges()) {
            GraphDiff diff = getObjectStore().getChanges();


            // call channel with changes BEFORE reverting them, so that any interceptors
            // could record them


            if (channel != null) {

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        int syncType = cascade
                ? DataChannel.FLUSH_CASCADE_SYNC
                : DataChannel.FLUSH_NOCASCADE_SYNC;


        ObjectStore objectStore = getObjectStore();
        GraphDiff parentChanges = null;


        // prevent multiple commits occurring simultaneously
        synchronized (objectStore) {


            ObjectStoreGraphDiff changes = objectStore.getChanges();

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org.apache.cayenne.access.ClientServerChannel

org.apache.cayenne.access.DataContext

org.apache.cayenne.access.DataContextCommitTest

org.apache.cayenne.access.DataContextMergeHandler

org.apache.cayenne.access.DataDomain

org.apache.cayenne.access.DataDomainFiltersTest

org.apache.cayenne.access.ObjectStore

org.apache.cayenne.CayenneContext

org.apache.cayenne.CayenneContextGraphManager

org.apache.cayenne.intercept.DataChannelCallbackInterceptor

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