JsonProcessor (SQL Json 0.5 API)

java.lang.Object
- io.github.spartatech.sqljson.jsonprocessing.JsonProcessor

```
public class JsonProcessor
extends Object
```
Processes the query against given Json and generates de results

Constructor Summary

Constructors
Constructor Description

JsonProcessor(com.fasterxml.jackson.databind.JsonNode json, JsonQueryClause query)
Constructor receiving JSON and query.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`List<LinkedHashMap<String,com.fasterxml.jackson.databind.JsonNode>>`	`narrowResultElements(List<com.fasterxml.jackson.databind.JsonNode> elements)`	Return the selected columns.
`JsonResultSet`	`process()`	Main processor method.

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

Constructor Detail

JsonProcessor

public JsonProcessor(com.fasterxml.jackson.databind.JsonNode json,
                     JsonQueryClause query)

Constructor receiving JSON and query.

Parameters:: json - json to be queried; query - SQL to be executed

Method Detail
- process
```
public JsonResultSet process()
                      throws Exception
```
  Main processor method.
  
  Returns:
  
  List of results found
  
  Throws:
  
  Exception - in case of any failure
- narrowResultElements
```
public List<LinkedHashMap<String,com.fasterxml.jackson.databind.JsonNode>> narrowResultElements(List<com.fasterxml.jackson.databind.JsonNode> elements)
                                                                                               throws SQLSyntaxErrorException
```
  Return the selected columns. Star will return all fields . (dot) will return a json
  
  Parameters:
  
  elements - all elements to filter columns
  
  Returns:
  
  List rows, where rows are a map of cols
  
  Throws:
  
  SQLSyntaxErrorException - in case selectors are invalid