Question

我们正在开始在我们的应用程序中试验JaVers。我们希望在用户下订单后跟踪订单的更改。所以它是您的主要订单对象，项目，项目选项等的典型订单对象。大约一半的时间我们运行测试程序，我们收到此异常：

130 [main] INFO org.javers.core.JaversBuilder - JaVers实例已启动＆安培;准备好线程中的异常＆＃34; main＆＃34; JaversException：给定javaClass＆＃39;类的MANAGED_CLASS_MAPPING_ERROR 的java.util.ArrayList＆＃39;映射到ListType，期望ManagedType at org.javers.core.metamodel.type.TypeMapper.getJaversManagedType（TypeMapper.java:149）在 org.javers.core.metamodel.type.TypeMapper.getJaversManagedType（TypeMapper.java:132）在 org.javers.core.metamodel.object.GlobalIdFactory.createId（GlobalIdFactory.java:39）在 org.javers.core.graph.LiveCdoFactory.create（LiveCdoFactory.java:24）在org.javers.core.graph.EdgeBuilder.asCdo（EdgeBuilder.java:39）at org.javers.core.graph.EdgeBuilder.buildSingleEdge（EdgeBuilder.java:32）在 org.javers.core.graph.ObjectGraphBuilder.buildSingleEdges（ObjectGraphBuilder.java:81）在 org.javers.core.graph.ObjectGraphBuilder.buildEdges（ObjectGraphBuilder.java:71）在 org.javers.core.graph.ObjectGraphBuilder.buildGraphFromCdo（ObjectGraphBuilder.java:59）在 org.javers.core.graph.ObjectGraphBuilder.buildGraph（ObjectGraphBuilder.java:48）在 org.javers.core.graph.LiveGraphFactory.createLiveGraph（LiveGraphFactory.java:39）在org.javers.core.diff.DiffFactory.buildGraph（DiffFactory.java:109）在org.javers.core.diff.DiffFactory.compare（DiffFactory.java:64）at org.javers.core.JaversCore.compare（JaversCore.java:104）

我们只是重新运行程序并最终运行。代码基本上就是这样。

// Original database object
OrderVO oldOrder = // load from database.

// Changed database object
OrderVO newOrder = // load from database.
// Change the email
newOrder.setEmail("test@test.com");
// Simulate changing quantity and item id on items
for (OrderItemVO OrderItemVO : newOrder.getItems()) {
  OrderItemVO.setMerchantItemId(OrderItemVO.getMerchantItemId() + "A");
  OrderItemVO.setQuantity(OrderItemVO.getQuantity().add(1));
}

// Remove the first item
OrderItemVO[] items = new OrderItemVO[newOrder.getItems().length - 1];
System.arraycopy(newOrder.getItems(), 1, items, 0, items.length);
newOrder.setItems(items);

// Run comparison
Javers javers = JaversBuilder.javers().withListCompareAlgorithm(ListCompareAlgorithm.LEVENSHTEIN_DISTANCE).build();
Diff diff = javers.compare(oldOrder, newOrder);

MANAGED_CLASS_MAPPING_ERROR给定javaClass＆＃39;类java.util.ArrayList＆＃39;映射到ListType，期望ManagedType

0 个答案: