Java Apache元模型如何在创建表时添加外键

我编写了一段代码，通过apache元模型创建一些表：

dataContext.executeUpdate(new UpdateScript() {
        @Override
        public void run(UpdateCallback updateCallback) {
            updateCallback.createTable(schema, "aTable").withColumn("id").ofType(ColumnType.INTEGER)
            .withColumn("anotherTableId").ofType(ColumnType.INTEGER).execute();
            updateCallback.createTable(schema, "anotherTable").withColumn("id").ofType(ColumnType.INTEGER).execute();
        }
}

如何添加这些表之间的关系？

您可以尝试：

dataContext.executeUpdate(new UpdateScript() {
        @Override
        public void run(UpdateCallback updateCallback) {
            Table aTable = updateCallback.createTable(schema, "aTable")
                .withColumn("id").ofType(ColumnType.INTEGER)
                .withColumn("anotherTableId").ofType(ColumnType.INTEGER).execute();
            Table anotherTable = updateCallback.createTable(schema, "anotherTable")
                .withColumn("id").ofType(ColumnType.INTEGER).execute();

            MutableRelationship.createRelationship(
               anotherTable.getColumnByName("id"),
               aTable.getColumnByName("anotherTableId"));
        }
}

你可以试试：

dataContext.executeUpdate(new UpdateScript() {
        @Override
        public void run(UpdateCallback updateCallback) {
            Table aTable = updateCallback.createTable(schema, "aTable")
                .withColumn("id").ofType(ColumnType.INTEGER)
                .withColumn("anotherTableId").ofType(ColumnType.INTEGER).execute();
            Table anotherTable = updateCallback.createTable(schema, "anotherTable")
                .withColumn("id").ofType(ColumnType.INTEGER).execute();

            MutableRelationship.createRelationship(
               anotherTable.getColumnByName("id"),
               aTable.getColumnByName("anotherTableId"));
        }
}

---

不幸的是，MutableRelationship.CraeterRelationship（）只更新元模型而不是数据库后端。不幸的是，MutableRelationship.CraeterRelationship（）只更新元模型而不是数据库后端。