Examples of cascading.pattern.model.tree.predicate.compound.SurrogatePredicate

Package cascading.pattern.model.tree.predicate.compound

Examples of cascading.pattern.model.tree.predicate.compound.SurrogatePredicate

cascading.pattern.model.tree.predicate.compound.SurrogatePredicate
Class SurrogatePredicate returns the result of the first child predicate that as non null or not missing value. This is similar to a if then else statement.

        case AND:
          return new AndPredicate( predicates );
        case XOR:
          return new XorPredicate( predicates );
        case SURROGATE:
          return new SurrogatePredicate( predicates );
        }
      }


    throw new UnsupportedOperationException( "predicate type is unsupported: " + predicate );
    }

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    }


  @Test
  public void testSurrogate()
    {
    Predicate surrogatePredicate = new SurrogatePredicate(
      new EqualsToPredicate( "var2", 0.0d ),
      new EqualsToPredicate( "var2", 0.0d ),
      new TruePredicate() );


    assertTrue( new PredicateEvaluator( expectedFields, surrogatePredicate ).evaluate( tupleEntry ) );

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Related Classes of cascading.pattern.model.tree.predicate.compound.SurrogatePredicate

cascading.pattern.model.tree.PredicateTest

cascading.pattern.pmml.TreeUtil

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