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  package org.apache.cayenne.gen.property;
  
  import java.util.Arrays;
  import java.util.List;
  import java.util.Optional;
  
  import org.apache.cayenne.exp.property.NumericProperty;
  import org.apache.cayenne.gen.PropertyDescriptor;
  
  /**
   * @since 4.2
   */
  public class NumericPropertyDescriptorCreator implements PropertyDescriptorCreator {
  
      private static final List<Class<?>> PRIMITIVE_NUM_TYPES = Arrays.asList(
              int.class,
              short.class,
              long.class,
              float.class,
              double.class,
              byte.class
      );
  
      private static final String FACTORY_METHOD = "PropertyFactory.createNumeric";
  
      @Override
      public Optional<PropertyDescriptor> apply(Class<?> aClass) {
          if(PRIMITIVE_NUM_TYPES.contains(aClass) || Number.class.isAssignableFrom(aClass)) {
              return Optional.of(new PropertyDescriptor(NumericProperty.class.getName(), FACTORY_METHOD));
          }
          return Optional.empty();
      }
  }
  