org.apache.calcite.model.JsonFunction

public class JsonFunction extends Object

Function schema element.

See Also:

Field Details
- name
  
  public final String name
  
  Name of this function.
  Required.
- className
  
  public final String className
  
  Name of the class that implements this function.
  Required.
- methodName
  
  public final @Nullable String methodName
  
  Name of the method that implements this function.
  Optional.
  If specified, the method must exist (case-sensitive) and Calcite will create a scalar function. The method may be static or non-static, but if non-static, the class must have a public constructor with no parameters.
  If "*", Calcite creates a function for every method in this class.
  If not specified, Calcite looks for a method called "eval", and if found, creates a a table macro or scalar function. It also looks for methods "init", "add", "merge", "result", and if found, creates an aggregate function.
- path
  
  public final @Nullable List<String> path
  
  Path for resolving this function.
  Optional.
Constructor Details
- JsonFunction
  
  public JsonFunction(String name, String className, @Nullable String methodName, @Nullable List<String> path)
Method Details
- accept
  
  public void accept(ModelHandler handler)

Class JsonFunction

Field Summary