[英]Using Nested Projections in Spring Data REST
How to get expected output below where OrderProjection uses ItemProjection to render Items using Spring Data REST 如何在Spring Data REST中OrderProjection使用ItemProjection渲染项目的下方获得期望的输出
GET /orders/1?projection=with_items GET / orders / 1?projection = with_items
Projections : 投影:
@Projection(name = "summary", types = Item.class)
public interface ItemProjection {
String getName();
}
@Projection(name = "with_item", types = Order.class)
public interface OrderProjection {
LocalDateTime getOrderedDate();
Status getStatus();
Set<ItemProjection> getItems(); // this is marshalling as Set<Item> (full Item graph)
}
Currently getting as output: 当前作为输出获取:
{
"status" : "PAYMENT_EXPECTED",
"orderedDate" : "2014-11-09T11:33:02.823",
"items" : [ {
"name" : "Java Chip",
"quantity" : 1,
"milk" : "SEMI",
"size" : "LARGE",
"price" : {
"currency" : "EUR",
"value" : 4.20
}
} ],
"_links" : {
"self" : {
"href" : "http://localhost:8080/orders/1{?projection}",
"templated" : true
},
"restbucks:items" : {
"href" : "http://localhost:8080/orders/1/items"
},
"curies" : [ {
"href" : "http://localhost:8080/alps/{rel}",
"name" : "restbucks",
"templated" : true
} ]
}
}
Expected Output: 预期产量:
{
"status" : "PAYMENT_EXPECTED",
"orderedDate" : "2014-11-09T11:33:02.823",
"items" : [ {
"name" : "Java Chip"
} ],
"_links" : {
"self" : {
"href" : "http://localhost:8080/orders/1{?projection}",
"templated" : true
},
"restbucks:items" : {
"href" : "http://localhost:8080/orders/1/items"
},
"curies" : [ {
"href" : "http://localhost:8080/alps/{rel}",
"name" : "restbucks",
"templated" : true
} ]
}
}
You're running into DATAREST-394 which has been fixed a few days a go and will be making it into 2.2.2 and 2.3 RC1. 您正在运行DATAREST-394 ,它已经修复了几天,并且即将安装到2.2.2和2.3 RC1中。 It's already available in the snapshots for said versions, feel free to give them a spin. 所述版本的快照中已经提供了该功能,请随意试用。
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