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

Example 6 with GraphChangeHandler

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

the class DataContextCommitIT method testFlushToParent_Commit_New.

@Test
public void testFlushToParent_Commit_New() {
    // commit new object
    Artist a = context.newObject(Artist.class);
    a.setArtistName("Test");
    assertTrue(context.hasChanges());
    ObjectId beforeId = a.getObjectId();
    GraphDiff diff = context.flushToParent(true);
    ObjectId afterId = a.getObjectId();
    assertNotNull(diff);
    assertFalse(context.hasChanges());
    assertNotEquals(beforeId, afterId);
    GraphChangeHandler diffChecker = mock(GraphChangeHandler.class);
    diff.apply(diffChecker);
    verify(diffChecker).nodeIdChanged(beforeId, afterId);
    verifyZeroInteractions(diffChecker);
}

Example 7 with GraphChangeHandler

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

the class NestedCayenneContextIT method testCommitChangesToParentOneToMany.

@Test
public void testCommitChangesToParentOneToMany() throws Exception {
    ObjectContext child = runtime.newContext(clientContext);
    ClientMtTable1 master = child.newObject(ClientMtTable1.class);
    ClientMtTable2 dep = child.newObject(ClientMtTable2.class);
    master.addToTable2Array(dep);
    child.commitChangesToParent();
    ClientMtTable1 masterParent = (ClientMtTable1) clientContext.getGraphManager().getNode(master.getObjectId());
    ClientMtTable2 depParent = (ClientMtTable2) clientContext.getGraphManager().getNode(dep.getObjectId());
    assertNotNull(masterParent);
    assertNotNull(depParent);
    assertSame(masterParent, depParent.getTable1());
    assertTrue(masterParent.getTable2Array().contains(depParent));
    // check that arc changes got recorded in the parent context
    GraphDiff diffs = clientContext.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]++;
        }

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

        public void nodeCreated(Object nodeId) {
            newNodes[0]++;
        }

        public void nodeIdChanged(Object nodeId, Object newId) {
        }

        public void nodePropertyChanged(Object nodeId, String property, Object oldValue, Object newValue) {
        }

        public void nodeRemoved(Object nodeId) {
            newNodes[0]--;
        }
    });
    assertEquals(2, newNodes[0]);
    assertEquals(2, arcDiffs[0]);
}

Example 8 with GraphChangeHandler

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

the class NestedCayenneContextTooneIT method testCommitChangesToParentOneToOne.

@Test
public void testCommitChangesToParentOneToOne() throws Exception {
    ObjectContext child = runtime.newContext(clientContext);
    ClientTooneMaster master = child.newObject(ClientTooneMaster.class);
    ClientTooneDep dep = child.newObject(ClientTooneDep.class);
    master.setToDependent(dep);
    child.commitChangesToParent();
    ClientTooneMaster masterParent = (ClientTooneMaster) clientContext.getGraphManager().getNode(master.getObjectId());
    ClientTooneDep depParent = (ClientTooneDep) clientContext.getGraphManager().getNode(dep.getObjectId());
    assertNotNull(masterParent);
    assertNotNull(depParent);
    assertSame(masterParent, depParent.getToMaster());
    assertSame(depParent, masterParent.getToDependent());
    // check that arc changes got recorded in the parent context
    GraphDiff diffs = clientContext.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]++;
        }

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

        public void nodeCreated(Object nodeId) {
            newNodes[0]++;
        }

        public void nodeIdChanged(Object nodeId, Object newId) {
        }

        public void nodePropertyChanged(Object nodeId, String property, Object oldValue, Object newValue) {
        }

        public void nodeRemoved(Object nodeId) {
            newNodes[0]--;
        }
    });
    assertEquals(2, newNodes[0]);
    assertEquals(2, arcDiffs[0]);
}

Example 9 with GraphChangeHandler

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

the class ClientChannelServerDiffsIT method testReturnIdDiff.

@Test
public void testReturnIdDiff() {
    final Object[] ids = new Object[2];
    final GraphChangeHandler diffReader = new NoopGraphChangeHandler() {

        @Override
        public void nodeIdChanged(Object oldId, Object newId) {
            ids[0] = oldId;
            ids[1] = newId;
        }
    };
    ClientChannel channel = new ClientChannel(connection, false, new MockEventManager(), false) {

        @Override
        public GraphDiff onSync(ObjectContext originatingContext, GraphDiff changes, int syncType) {
            GraphDiff serverDiff = super.onSync(originatingContext, changes, syncType);
            assertNotNull(serverDiff);
            serverDiff.apply(diffReader);
            return serverDiff;
        }
    };
    CayenneContext context = new CayenneContext(channel);
    context.newObject(ClientMtTable1.class);
    context.commitChanges();
    assertTrue(ids[0] instanceof ObjectId);
    assertTrue(((ObjectId) ids[0]).isTemporary());
    assertTrue(ids[1] instanceof ObjectId);
    assertFalse(((ObjectId) ids[1]).isTemporary());
}

Example 10 with GraphChangeHandler

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

the class CommitLogFilter method afterCommit.

private void afterCommit(MutableChangeMap changes, DataChannel channel, GraphDiff contextDiff, GraphDiff dbDiff) {
    GraphChangeHandler handler = new DiffFilter(entityFactory, new DiffProcessor(changes, channel.getEntityResolver()));
    contextDiff.apply(handler);
    dbDiff.apply(handler);
}