if we have a Product and Supplier object, where Product has a supplier and a supplier has a Product, how can we indicate to the entities that this is not an infinite cycle when obtaining the JSON of a product?
this would be something like
{
"name": "milk",
"supplier": {
"name": "supplier name",
"products": [
{
"name": "milk",
"supplier": {
"products": [
"name": "milk",
"supplier": {
"products": [
"name": "milk",
"supplier": {
"products": [
]
]
]
},
]
}
}
how could we configure this in java with JPA by levels? so that it is not an infinite cycle, and that it only returns 3 layers or levels of this infinite cycle?
Advertisement
Answer
This has nothing to do with JPA but with your JSON serialization library. I guess you are using Jackson as that is the default in Spring. In that case, annotate the products collection field in your supplier entity with @JsonIgnore to avoid serializing the collection to JSON.