Package org.apache.openjpa.util

Examples of org.apache.openjpa.util.ChangeTracker

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            }
        });

        // create proxy
        Object coll;
        ChangeTracker ct = null;
        if (field.getTypeCode() == JavaTypes.ARRAY)
            coll = new ArrayList();
        else {
            coll = sm.newProxy(field.getIndex());
            if (coll instanceof Proxy)
                ct = ((Proxy) coll).getChangeTracker();
        }

        // load values
        Result res = union.execute(store, fetch);
        try {
            int seq = 0;
            while (res.next()) {
                if (ct != null && field.getOrderColumn() != null)
                    seq = res.getInt(field.getOrderColumn());
                add(store, coll, loadElement(sm, store, fetch, res,
                    resJoins[res.indexOf()]));
            }
            if (ct != null && field.getOrderColumn() != null)
                ct.setNextSequence(seq + 1);
        } finally {
            res.close();
        }

        // set into sm
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        throws SQLException {
        if (field.getMappedBy() != null && !_orderInsert && !_orderUpdate)
            return;

        Object obj = sm.fetchObject(field.getIndex());
        ChangeTracker ct = null;
        if (obj instanceof Proxy) {
            Proxy proxy = (Proxy) obj;
            if (Proxies.isOwner(proxy, sm, field.getIndex()))
                ct = proxy.getChangeTracker();
        }

        // if no fine-grained change tracking then just delete and reinsert
        if (ct == null || !ct.isTracking()) {
            delete(sm, store, rm);
            insert(sm, rm, obj);
            return;
        }

        // null inverse columns for deletes and update them with our oid for
        // inserts
        ClassMapping rel = field.getElementMapping().getTypeMapping();
        StoreContext ctx = store.getContext();
        if (field.getMappedBy() == null) {
            Collection rem = ct.getRemoved();
            for (Iterator itr = rem.iterator(); itr.hasNext();)
                updateInverse(ctx, itr.next(), rel, rm, null, 0);
        }

        Collection add = ct.getAdded();
        int seq = ct.getNextSequence();
        for (Iterator itr = add.iterator(); itr.hasNext(); seq++)
            updateInverse(ctx, itr.next(), rel, rm, sm, seq);
        if (field.getOrderColumn() != null)
            ct.setNextSequence(seq);
    }
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                    JDBCFetchConfiguration.EAGER_PARALLEL);
            }
        });

        // create proxy
        ChangeTracker ct = null;
        if (delayed) {
            if (sm.isDetached() || sm.getOwner() == null) {
                sm.getPersistenceCapable().pcProvideField(fieldIndex);
                coll =
                    ((FieldManager)sm.getPersistenceCapable().pcGetStateManager()).fetchObjectField(fieldIndex);
            } else {
                coll = sm.fetchObjectField(fieldIndex);
            }
            if (coll instanceof Proxy)
                ct = ((Proxy) coll).getChangeTracker();
        } else {
            if (field.getTypeCode() == JavaTypes.ARRAY)
                coll = new ArrayList();
            else {
                if (coll == null) {
                    coll = sm.newProxy(fieldIndex);
                }
                if (coll instanceof Proxy)
                    ct = ((Proxy) coll).getChangeTracker();
            }
        }

        // load values
        Result res = union.execute(store, fetch);
        try {
            int seq = -1;
            while (res.next()) {
                if (ct != null && field.getOrderColumn() != null)
                    seq = res.getInt(field.getOrderColumn());
                setMappedBy(sm.getObjectId(), sm, coll, res);
                 add(store, coll, loadElement(sm, store, fetch, res,
                     resJoins[res.indexOf()]));
            }
            if (ct != null && field.getOrderColumn() != null)
                ct.setNextSequence(seq + 1);
        } finally {
            res.close();
        }

        // if not a delayed collection, set into sm
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                break;
        }

        if (proxy != null) {
            proxy.setOwner(_sm, field);
            ChangeTracker tracker = proxy.getChangeTracker();
            if (reset && tracker != null) {
                if (fmd.getDeclaredTypeCode() == JavaTypes.MAP) {
                    // track values if key is derived from value, else keys
                    boolean keys = fmd.getKey().getValueMappedBy() == null;
                    ((MapChangeTracker) tracker).setTrackKeys(keys);
                }
                tracker.startTracking();
            }
            objval = proxy;
        }
        return ret;
    }
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                    if (external)
                        val = fmd.getExternalValue(val, _broker);
                    else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        ChangeTracker ct = ((Proxy) val).getChangeTracker();
                        if (ct != null && ct.isTracking()) {
                            preFlushPCs(fmd.getElement(), ct.getAdded(),
                                logical, call);
                            preFlushPCs(fmd.getElement(), ct.getChanged(),
                                logical, call);
                            flushed = true;
                        }
                    }
                    if (!flushed && val != null)
                        preFlushPCs(fmd.getElement(), (Collection) val, logical,
                            call);
                }
                break;
            case JavaTypes.MAP:
                boolean keyEmbed = fmd.getKey().isEmbeddedPC();
                boolean valEmbed = fmd.getElement().isEmbeddedPC();
                if (keyEmbed || valEmbed) {
                    objval = embed(fmd, (Map) val, keyEmbed, valEmbed);
                    copy = keyEmbed;
                }

                if (!keyEmbed && (keyType == JavaTypes.PC
                    || keyType == JavaTypes.PC_UNTYPED)) {
                    boolean flushed = false;
                    if (external) {
                        val = fmd.getExternalValue(val, _broker);
                        external = false;
                    } else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        MapChangeTracker ct = (MapChangeTracker) ((Proxy) val).
                            getChangeTracker();
                        if (ct != null && ct.isTracking() && ct.getTrackKeys())
                        {
                            preFlushPCs(fmd.getKey(), ct.getAdded(), logical,
                                call);
                            preFlushPCs(fmd.getKey(), ct.getChanged(), logical,
                                call);
                            flushed = true;
                        }
                    }
                    if (!flushed && val != null)
                        preFlushPCs(fmd.getKey(), ((Map) val).keySet(), logical,
                            call);
                }

                if (!valEmbed && (elemType == JavaTypes.PC
                    || elemType == JavaTypes.PC_UNTYPED)) {
                    boolean flushed = false;
                    if (external)
                        val = fmd.getExternalValue(val, _broker);
                    else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        MapChangeTracker ct = (MapChangeTracker) ((Proxy) val).
                            getChangeTracker();
                        if (ct != null && ct.isTracking()) {
                            if (ct.getTrackKeys()) {
                                preFlushPCs(fmd.getElement(), ct.getAdded(),
                                    (Map) val, logical, call);
                                preFlushPCs(fmd.getElement(), ct.getChanged(),
                                    (Map) val, logical, call);
                            } else {
                                preFlushPCs(fmd.getElement(), ct.getAdded(),
                                    logical, call);
                                preFlushPCs(fmd.getElement(), ct.getChanged(),
                                    logical, call);
                            }
                            flushed = true;
                        }
                    }
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                break;
        }

        if (proxy != null) {
            proxy.setOwner(_sm, field);
            ChangeTracker tracker = proxy.getChangeTracker();
            if (reset && tracker != null) {
                if (fmd.getDeclaredTypeCode() == JavaTypes.MAP) {
                    // track values if key is derived from value, else keys
                    boolean keys = fmd.getKey().getValueMappedBy() == null;
                    ((MapChangeTracker) tracker).setTrackKeys(keys);
                }
                tracker.startTracking();
            }
            objval = proxy;
        }
        return ret;
    }
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                    if (external)
                        val = fmd.getExternalValue(val, _broker);
                    else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        ChangeTracker ct = ((Proxy) val).getChangeTracker();
                        if (ct != null && ct.isTracking()) {
                            preFlushPCs(fmd.getElement(), ct.getAdded(),
                                logical, call);
                            preFlushPCs(fmd.getElement(), ct.getChanged(),
                                logical, call);
                            flushed = true;
                        }
                    }
                    if (!flushed && val != null)
                        preFlushPCs(fmd.getElement(), (Collection) val, logical,
                            call);
                }
                break;
            case JavaTypes.MAP:
                boolean keyEmbed = fmd.getKey().isEmbeddedPC();
                boolean valEmbed = fmd.getElement().isEmbeddedPC();
                if (keyEmbed || valEmbed) {
                    objval = embed(fmd, (Map) val, keyEmbed, valEmbed);
                    copy = keyEmbed;
                }

                if (!keyEmbed && (keyType == JavaTypes.PC
                    || keyType == JavaTypes.PC_UNTYPED)) {
                    boolean flushed = false;
                    if (external) {
                        val = fmd.getExternalValue(val, _broker);
                        external = false;
                    } else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        MapChangeTracker ct = (MapChangeTracker) ((Proxy) val).
                            getChangeTracker();
                        if (ct != null && ct.isTracking() && ct.getTrackKeys())
                        {
                            preFlushPCs(fmd.getKey(), ct.getAdded(), logical,
                                call);
                            preFlushPCs(fmd.getKey(), ct.getChanged(), logical,
                                call);
                            flushed = true;
                        }
                    }
                    if (!flushed && val != null)
                        preFlushPCs(fmd.getKey(), ((Map) val).keySet(), logical,
                            call);
                }

                if (!valEmbed && (elemType == JavaTypes.PC
                    || elemType == JavaTypes.PC_UNTYPED)) {
                    boolean flushed = false;
                    if (external)
                        val = fmd.getExternalValue(val, _broker);
                    else if (val instanceof Proxy) {
                        // shortcut change trackers; also ensures we don't
                        // iterate lrs fields
                        MapChangeTracker ct = (MapChangeTracker) ((Proxy) val).
                            getChangeTracker();
                        if (ct != null && ct.isTracking()) {
                            if (ct.getTrackKeys()) {
                                preFlushPCs(fmd.getElement(), ct.getAdded(),
                                    (Map) val, logical, call);
                                preFlushPCs(fmd.getElement(), ct.getChanged(),
                                    (Map) val, logical, call);
                            } else {
                                preFlushPCs(fmd.getElement(), ct.getAdded(),
                                    logical, call);
                                preFlushPCs(fmd.getElement(), ct.getChanged(),
                                    logical, call);
                            }
                            flushed = true;
                        }
                    }
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                ProxyDataList c = (ProxyDataList) data;
                Collection c2 = (Collection) sm.newFieldProxy(fmd.getIndex());
                c2 = toNestedFields(sm, fmd.getElement(), (Collection) data,
                    fetch, context);
                if (c2 instanceof Proxy) {
                    ChangeTracker ct = ((Proxy) c2).getChangeTracker();
                    if (ct != null)
                        ct.setNextSequence(c.nextSequence);
                }
                return c2;
            case JavaTypes.MAP:
                Map m = (Map) data;
                Map m2 = (Map) sm.newFieldProxy(fmd.getIndex());
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                        return NULL;
                    if (c2 == null) {
                        size = c.size();
                        c2 = new ProxyDataList(size);
                        if (c instanceof Proxy) {
                            ChangeTracker ct = ((Proxy) c).getChangeTracker();
                            if (ct != null)
                                c2.nextSequence = ct.getNextSequence();
                        } else
                            c2.nextSequence = size;
                    }
                    c2.add(val);
                }
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                break;
        }

        if (proxy != null) {
            proxy.setOwner(_sm, field);
            ChangeTracker tracker = proxy.getChangeTracker();
            if (reset && tracker != null) {
                if (fmd.getDeclaredTypeCode() == JavaTypes.MAP) {
                    // track values if key is derived from value, else keys
                    boolean keys = fmd.getKey().getValueMappedBy() == null;
                    ((MapChangeTracker) tracker).setTrackKeys(keys);
                }
                tracker.startTracking();
            }
            objval = proxy;
        }
        return ret;
    }
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Related Classes of org.apache.openjpa.util.ChangeTracker

  • org.apache.openjpa.jdbc.meta.strats.RelationToManyInverseKeyFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationToManyTableFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.StoreCollectionFieldStrategy
  • org.apache.openjpa.kernel.AbstractPCData
  • org.apache.openjpa.kernel.SingleFieldManager
  • org.apache.openjpa.persistence.proxy.TestProxyCollection
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