Examples with CompoundDiff org.apache.cayenne.graph.CompoundDiff used on opensource projects

Example 6 with CompoundDiff

use of org.apache.cayenne.graph.CompoundDiff in project cayenne by apache.

the class SyncMessageTest method testConstructor.

@Test
public void testConstructor() {
    ObjectContext source = mock(ObjectContext.class);
    GraphDiff diff = new CompoundDiff();
    SyncMessage message = new SyncMessage(source, DataChannel.FLUSH_NOCASCADE_SYNC, diff);
    assertSame(source, message.getSource());
    assertEquals(DataChannel.FLUSH_NOCASCADE_SYNC, message.getType());
    assertSame(diff, message.getSenderChanges());
}

Example 7 with CompoundDiff

use of org.apache.cayenne.graph.CompoundDiff in project cayenne by apache.

the class SyncMessageTest method testConstructorInvalid.

@Test
public void testConstructorInvalid() {
    ObjectContext source = mock(ObjectContext.class);
    new SyncMessage(source, DataChannel.FLUSH_NOCASCADE_SYNC, new CompoundDiff());
    new SyncMessage(source, DataChannel.FLUSH_CASCADE_SYNC, new CompoundDiff());
    new SyncMessage(null, DataChannel.ROLLBACK_CASCADE_SYNC, new CompoundDiff());
    int bogusType = 45678;
    try {
        new SyncMessage(source, bogusType, new CompoundDiff());
        fail("invalid type was allowed to go unnoticed...");
    } catch (IllegalArgumentException e) {
    }
}

Example 8 with CompoundDiff

use of org.apache.cayenne.graph.CompoundDiff in project cayenne by apache.

the class ObjectContextChangeLogTest method testGetDiffsSerializable.

@Test
public void testGetDiffsSerializable() throws Exception {
    ObjectContextChangeLog recorder = new ObjectContextChangeLog();
    recorder.addOperation(new NodeCreateOperation(new ObjectId("test")));
    CompoundDiff diff = (CompoundDiff) recorder.getDiffs();
    Object clone = Util.cloneViaSerialization(diff);
    assertNotNull(clone);
    assertTrue(clone instanceof CompoundDiff);
    CompoundDiff d1 = (CompoundDiff) clone;
    assertEquals(1, d1.getDiffs().size());
}

Example 9 with CompoundDiff

use of org.apache.cayenne.graph.CompoundDiff in project cayenne by apache.

the class ObjectContextChangeLogTest method testGetDiffs.

@Test
public void testGetDiffs() {
    // assert that after returning, the diffs array won't get modified by
    // operation
    // recorder
    ObjectContextChangeLog recorder = new ObjectContextChangeLog();
    recorder.addOperation(new NodeCreateOperation(new Object()));
    CompoundDiff diff = (CompoundDiff) recorder.getDiffs();
    assertEquals(1, diff.getDiffs().size());
    recorder.addOperation(new NodeCreateOperation(new Object()));
    assertEquals(1, diff.getDiffs().size());
    CompoundDiff diff2 = (CompoundDiff) recorder.getDiffs();
    assertEquals(2, diff2.getDiffs().size());
}

Example 10 with CompoundDiff

use of org.apache.cayenne.graph.CompoundDiff in project cayenne by apache.

the class DataContext method flushToParent.

/**
 * Synchronizes with the parent channel, performing a flush or a commit.
 *
 * @since 1.2
 */
GraphDiff flushToParent(boolean cascade) {
    if (this.getChannel() == null) {
        throw new CayenneRuntimeException("Cannot commit changes - channel is not set.");
    }
    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();
        boolean noop = isValidatingObjectsOnCommit() ? changes.validateAndCheckNoop() : changes.isNoop();
        if (noop) {
            // need to clear phantom changes
            objectStore.postprocessAfterPhantomCommit();
        } else {
            try {
                parentChanges = getChannel().onSync(this, changes, syncType);
                // Pending better callback design .....
                if (objectStore.hasChanges()) {
                    objectStore.postprocessAfterCommit(parentChanges);
                }
                // this event is caught by peer nested DataContexts to
                // synchronize the
                // state
                fireDataChannelCommitted(this, changes);
            }// "catch" is needed to unwrap OptimisticLockExceptions
             catch (CayenneRuntimeException ex) {
                Throwable unwound = Util.unwindException(ex);
                if (unwound instanceof CayenneRuntimeException) {
                    throw (CayenneRuntimeException) unwound;
                } else {
                    throw new CayenneRuntimeException("Commit Exception", unwound);
                }
            }
        }
        // merge changes from parent as well as changes caused by lifecycle
        // event
        // callbacks/listeners...
        CompoundDiff diff = new CompoundDiff();
        diff.addAll(objectStore.getLifecycleEventInducedChanges());
        if (parentChanges != null) {
            diff.add(parentChanges);
        }
        // ObjectIds with permanent
        if (!diff.isNoop()) {
            fireDataChannelCommitted(getChannel(), diff);
        }
        return diff;
    }
}