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

Example 6 with ArcId

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

the class Util method setReverse.

static void setReverse(final Persistent sourceObject, String propertyName, final Persistent targetObject) {
    ArcProperty property = (ArcProperty) Cayenne.getClassDescriptor(sourceObject).getProperty(propertyName);
    ArcProperty reverseArc = property.getComplimentaryReverseArc();
    if (reverseArc != null) {
        reverseArc.visit(new PropertyVisitor() {

            public boolean visitToMany(ToManyProperty property) {
                property.addTargetDirectly(targetObject, sourceObject);
                return false;
            }

            public boolean visitToOne(ToOneProperty property) {
                property.setTarget(targetObject, sourceObject, false);
                return false;
            }

            public boolean visitAttribute(AttributeProperty property) {
                return false;
            }
        });
        sourceObject.getObjectContext().getGraphManager().arcCreated(targetObject.getObjectId(), sourceObject.getObjectId(), new ArcId(reverseArc));
        markAsDirty(targetObject);
    }
}

Example 7 with ArcId

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

the class Util method unsetReverse.

static void unsetReverse(final Persistent sourceObject, String propertyName, final Persistent targetObject) {
    ArcProperty property = (ArcProperty) Cayenne.getClassDescriptor(sourceObject).getProperty(propertyName);
    ArcProperty reverseArc = property.getComplimentaryReverseArc();
    if (reverseArc != null) {
        reverseArc.visit(new PropertyVisitor() {

            public boolean visitToMany(ToManyProperty property) {
                property.removeTargetDirectly(targetObject, sourceObject);
                return false;
            }

            public boolean visitToOne(ToOneProperty property) {
                property.setTarget(targetObject, null, false);
                return false;
            }

            public boolean visitAttribute(AttributeProperty property) {
                return false;
            }
        });
        sourceObject.getObjectContext().getGraphManager().arcDeleted(targetObject.getObjectId(), sourceObject.getObjectId(), new ArcId(reverseArc));
        markAsDirty(targetObject);
    }
}

Example 8 with ArcId

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

the class NestedCayenneContextIT method testCommitChangesToParentOneToMany.

@Test
public void testCommitChangesToParentOneToMany() {
    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() {

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

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

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

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

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

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

Example 9 with ArcId

use of org.apache.cayenne.graph.ArcId 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() {

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

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

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

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

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

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

Example 10 with ArcId

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

the class ObjectContextDeleteAction method processDeleteRules.

private void processDeleteRules(final Persistent object, int oldState) throws DeleteDenyException {
    ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(object.getObjectId().getEntityName());
    for (final ObjRelationship relationship : descriptor.getEntity().getRelationships()) {
        boolean processFlattened = relationship.isFlattened() && relationship.isToDependentEntity() && !relationship.isReadOnly();
        // first check for no action... bail out if no flattened processing is needed
        if (relationship.getDeleteRule() == DeleteRule.NO_ACTION && !processFlattened) {
            continue;
        }
        ArcProperty property = (ArcProperty) descriptor.getProperty(relationship.getName());
        final Collection<Persistent> relatedObjects = toCollection(property.readProperty(object));
        // no related object, bail out
        if (relatedObjects.size() == 0) {
            continue;
        }
        // process DENY rule first...
        if (relationship.getDeleteRule() == DeleteRule.DENY) {
            object.setPersistenceState(oldState);
            String message = relatedObjects.size() == 1 ? "1 related object" : relatedObjects.size() + " related objects";
            throw new DeleteDenyException(object, relationship.getName(), message);
        }
        // object graph
        if (processFlattened) {
            ArcId arcId = new ArcId(property);
            for (Persistent relatedObject : relatedObjects) {
                context.getGraphManager().arcDeleted(object.getObjectId(), relatedObject.getObjectId(), arcId);
            }
        }
        // process remaining rules
        switch(relationship.getDeleteRule()) {
            case DeleteRule.NO_ACTION:
                break;
            case DeleteRule.NULLIFY:
                ArcProperty reverseArc = property.getComplimentaryReverseArc();
                if (reverseArc == null) {
                    // nothing we can do here
                    break;
                }
                reverseArc.visit(new PropertyVisitor() {

                    public boolean visitAttribute(AttributeProperty property) {
                        return false;
                    }

                    public boolean visitToMany(ToManyProperty property) {
                        for (Persistent relatedObject : relatedObjects) {
                            property.removeTarget(relatedObject, object, true);
                        }
                        return false;
                    }

                    public boolean visitToOne(ToOneProperty property) {
                        // nullify the reverse relationship
                        for (Persistent relatedObject : relatedObjects) {
                            property.setTarget(relatedObject, null, true);
                        }
                        return false;
                    }
                });
                break;
            case DeleteRule.CASCADE:
                // Delete all related objects
                for (Persistent relatedObject : relatedObjects) {
                    performDelete(relatedObject);
                }
                break;
            default:
                object.setPersistenceState(oldState);
                throw new CayenneRuntimeException("Invalid delete rule %s", relationship.getDeleteRule());
        }
    }
}