code: package it.unibz.inf.ontop.model.term.functionsymbol.db.impl;
  
  import com.google.common.collect.ImmutableList;
  import it.unibz.inf.ontop.iq.node.VariableNullability;
  import it.unibz.inf.ontop.model.term.DBConstant;
  import it.unibz.inf.ontop.model.term.ImmutableTerm;
  import it.unibz.inf.ontop.model.term.TermFactory;
  import it.unibz.inf.ontop.model.type.DBTermType;
  
  import java.math.BigDecimal;
  
  
  public class DefaultDBNonStrictNumericEqOperator extends AbstractDBNonStrictEqOperator {
  
      /**
       * TODO: type the input
       */
      protected DefaultDBNonStrictNumericEqOperator(DBTermType rootDBTermType,
                                                    DBTermType dbBoolean) {
          super("NUM_NON_STRICT_EQ", rootDBTermType, dbBoolean);
      }
  
      @Override
      public boolean canBePostProcessed(ImmutableList<? extends ImmutableTerm> arguments) {
          return true;
      }
  
      @Override
      protected ImmutableTerm buildTermAfterEvaluation(ImmutableList<ImmutableTerm> newTerms, TermFactory termFactory,
                                                       VariableNullability variableNullability) {
          if (newTerms.stream().allMatch(t -> t instanceof DBConstant)) {
              BigDecimal n1 = new BigDecimal(((DBConstant) newTerms.get(0)).getValue());
              BigDecimal n2 = new BigDecimal(((DBConstant) newTerms.get(1)).getValue());
  
              return termFactory.getDBBooleanConstant(n1.compareTo(n2) == 0);
          }
  
          return super.buildTermAfterEvaluation(newTerms, termFactory, variableNullability);
      }
  }
  