Evaluator (evrete-core 2.0.2 API)

All Superinterfaces:: ValuesPredicate

public interface Evaluator
extends ValuesPredicate

An internal representation of every condition in the rule engine.

Field Summary

Fields

Modifier and Type Field Description

static int RELATION_EQUALS

static int RELATION_INVERSE

static int RELATION_NONE

Method Summary

Modifier and Type	Method	Description
`default int`	`compare(Evaluator other)`
`FieldReference[]`	`descriptor()`	Describes fields and their ordering to be used during the evaluation
`default Object[]`	`toArray(IntToValue values)`	A convenience method to convert evaluator's arguments to object array.

Methods inherited from interface org.evrete.api.ValuesPredicate

test

Field Details
- RELATION_NONE
  
  static final int RELATION_NONE
  
  See Also:
  
  Constant Field Values
- RELATION_EQUALS
  
  static final int RELATION_EQUALS
  
  See Also:
  
  Constant Field Values
- RELATION_INVERSE
  
  static final int RELATION_INVERSE
  
  See Also:
  
  Constant Field Values
Method Details
- descriptor
  
  FieldReference[] descriptor()
  
  Describes fields and their ordering to be used during the evaluation
  
  Returns:
  
  fields in correct order
- compare
  
  default int compare(Evaluator other)
  
  Parameters:
  
  other - predicate
  
  Returns:
  
  positive integer (>0) if predicates are logically the same, negative integer (<0) if predicates are logically inverted (like a == 2 and a != 2) zero (0) if there is no knowledge about the two or if they are independent
- toArray
  
  default Object[] toArray(IntToValue values)
  
  A convenience method to convert evaluator's arguments to object array.
  
  Parameters:
  
  values - evaluator's arguments as a functional interface
  
  Returns:
  
  arguments as an array