Package org.jpmml.evaluator

Class LoadingModelEvaluatorBuilder

  • All Implemented Interfaces:
    Serializable, Cloneable, EvaluatorBuilder
    public class LoadingModelEvaluatorBuilder
extends ModelEvaluatorBuilder

    Builds a ModelEvaluator based on a PMML XML input stream.

    Init sequence
    1. Create a new, or clone an existing object.
    2. Perform ModelEvaluatorBuilder-level (ie. parent level) configuration work. For example, specify the mapping between model and application schemas.
    3. Perform LoadingModelEvaluatorBuilder-level configuration work. For example, specify if XML meta-information should be collected and exposed.
    4. Load the PMML XML input stream into an in-memory class model object.
    5. Transform the in-memory class model object. For example, customize model business logic.
    6. Build.

    Configuration changes typically have no effect after the class model object has been loaded.

    Simple example 
    
 Evaluator evaluator = new LoadingModelEvaluatorBuilder()
   .load(new File("model.pmml"))
   .build();
    Complex example 
    
 LoadingModelEvaluatorBuilder evaluatorBuilder = new LoadingModelEvaluatorBuilder()
   .setOutputFilter(OutputFilters.KEEP_FINAL_RESULTS)
   .setLocatable(false);

 Evaluator firstEvaluator = evaluatorBuilder
   .load(new File("model-001.pmml"))
   .build();

 Evaluator secondEvaluator = evaluatorBuilder
   .setMutable(true)
   .load(new File("model-002.pmml"))
   .transform(pmml -> transpile(pmml))
   .build();
    See Also:
    Serialized Form