JsonProducer (Vitro API 1.15.0 API)

java.lang.Object
- edu.cornell.mannlib.vitro.webapp.controller.json.JsonProducer

Direct Known Subclasses:

JsonArrayProducer, JsonObjectProducer
```
public abstract class JsonProducer
extends Object
```
A base for the classes that produce JSON results. Contains some useful constants and convenience methods.

Constructor Summary

Constructors
Constructor Description

JsonProducer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected List<String>`	`getVclassIds(VitroRequest vreq)`	Get one or more "vclassId" parameters from the request.
`protected VClass`	`getVclassParameter(VitroRequest vreq)`	Get the "vclassId" parameter from the request and instantiate the VClass.
`protected com.fasterxml.jackson.databind.node.ArrayNode`	`individualsToJson(List<Individual> individuals)`	Process a list of Individuals into a JSON array that holds the Names and URIs.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JsonProducer
```
public JsonProducer()
```
- Method Detail
  - individualsToJson
```
protected com.fasterxml.jackson.databind.node.ArrayNode individualsToJson(List<Individual> individuals)
                                                                   throws javax.servlet.ServletException
```
    Process a list of Individuals into a JSON array that holds the Names and URIs.
    
    Throws:
    
    javax.servlet.ServletException
  - getVclassParameter
```
protected VClass getVclassParameter(VitroRequest vreq)
```
    Get the "vclassId" parameter from the request and instantiate the VClass. There must be one, and it must be valid.
  - getVclassIds
```
protected List<String> getVclassIds(VitroRequest vreq)
```
    Get one or more "vclassId" parameters from the request. Confirm that there is at least one, and that all are valid. Return value is never null and never empty.