Examples of org.eigenbase.rex.RexBuilder

org.eigenbase.rex.RexBuilder
Factory for row expressions.
Some common literal values (NULL, TRUE, FALSE, 0, 1, '') are cached.

                new JavaRules.EnumerableTableAccessRel(
                    cluster, cluster.traitSetOf(EnumerableConvention.INSTANCE),
                    relOptTable, Object[].class);


            // "WHERE i > 1"
            final RexBuilder rexBuilder = cluster.getRexBuilder();
            final RexNode condition =
                rexBuilder.makeCall(SqlStdOperatorTable.GREATER_THAN,
                    rexBuilder.makeFieldAccess(
                        rexBuilder.makeRangeReference(tableRel), "i", true),
                    rexBuilder.makeExactLiteral(BigDecimal.ONE));
            final FilterRel filterRel =
                new FilterRel(cluster, tableRel, condition);


            // Specify that the result should be in Enumerable convention.
            final RelNode rootRel = filterRel;

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        && extraFields.isEmpty()) {
      return this;
    }
    List<RexNode> exprList = new ArrayList<RexNode>();
    List<String> nameList = new ArrayList<String>();
    RexBuilder rexBuilder = getCluster().getRexBuilder();
    final List<RelDataTypeField> fields = getRowType().getFieldList();


    // Project the subset of fields.
    for (int i : BitSets.toIter(fieldsUsed)) {
      RelDataTypeField field = fields.get(i);
      exprList.add(rexBuilder.makeInputRef(this, i));
      nameList.add(field.getName());
    }


    // Project nulls for the extra fields. (Maybe a sub-class table has
    // extra fields, but we don't.)
    for (RelDataTypeField extraField : extraFields) {
      exprList.add(
          rexBuilder.ensureType(
              extraField.getType(),
              rexBuilder.constantNull(),
              true));
      nameList.add(extraField.getName());
    }


    return new ProjectRel(

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    OptiqCatalogReader catalogReader = new OptiqCatalogReader(
        context.getRootSchema(),
        context.config().caseSensitive(),
        context.getDefaultSchemaPath(),
        typeFactory);
    final RexBuilder rexBuilder = new RexBuilder(typeFactory);
    final RelOptPlanner planner = createPlanner(context);
    final RelOptQuery query = new RelOptQuery(planner);
    final RelOptCluster cluster =
        query.createCluster(rexBuilder.getTypeFactory(), rexBuilder);
    return action.apply(cluster, catalogReader, context.getRootSchema().plus(),
        statement);
  }

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      super(context, catalogReader, resultConvention);
      this.schema = schema;
      this.prefer = prefer;
      this.planner = planner;
      this.typeFactory = typeFactory;
      this.rexBuilder = new RexBuilder(typeFactory);
    }

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        "unknown expression type " + expression.getNodeType());
  }


  private List<RexNode> toRex(
      RelNode child, FunctionExpression expression) {
    RexBuilder rexBuilder = cluster.getRexBuilder();
    List<RexNode> list =
        Collections.singletonList(
            rexBuilder.makeRangeReference(child));
    OptiqPrepareImpl.ScalarTranslator translator =
        OptiqPrepareImpl.EmptyScalarTranslator
            .empty(rexBuilder)
            .bind(expression.parameterList, list);
    final List<RexNode> rexList = new ArrayList<RexNode>();

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  List<RexNode> toRexList(
      FunctionExpression expression,
      RelNode... inputs) {
    List<RexNode> list = new ArrayList<RexNode>();
    RexBuilder rexBuilder = cluster.getRexBuilder();
    for (RelNode input : inputs) {
      list.add(rexBuilder.makeRangeReference(input));
    }
    return OptiqPrepareImpl.EmptyScalarTranslator.empty(rexBuilder)
        .bind(expression.parameterList, list)
        .toRexList(expression.body);
  }

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  RexNode toRex(
      FunctionExpression expression,
      RelNode... inputs) {
    List<RexNode> list = new ArrayList<RexNode>();
    RexBuilder rexBuilder = cluster.getRexBuilder();
    for (RelNode input : inputs) {
      list.add(rexBuilder.makeRangeReference(input));
    }
    return OptiqPrepareImpl.EmptyScalarTranslator.empty(rexBuilder)
        .bind(expression.parameterList, list)
        .toRex(expression.body);
  }

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    }
  }


  // RexBuilder is stateless; no need to store one
  private RexBuilder createRexBuilder() {
    return new RexBuilder(typeFactory);
  }

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          new SqlToRelConverter(
              null,
              validator,
              catalogReader,
              getPlanner(),
              new RexBuilder(typeFactory),
              StandardConvertletTable.INSTANCE);
    }

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                    new ReflectiveSchema(new JdbcTest.HrSchema()));
                TableAccessRel table =
                    new TableAccessRel(cluster,
                        relOptSchema.getTableForMember(
                            Arrays.asList("hr", "emps")));
                final RexBuilder rexBuilder = cluster.getRexBuilder();
                FilterRel filter =
                    new FilterRel(cluster, table,
                        rexBuilder.makeCall(
                            SqlStdOperatorTable.EQUALS,
                            rexBuilder.makeFieldAccess(
                                rexBuilder.makeRangeReference(table),
                                "deptno", true),
                            rexBuilder.makeExactLiteral(BigDecimal.TEN)));
                final RelJsonWriter writer = new RelJsonWriter();
                final RelDataType intType =
                    cluster.getTypeFactory().createSqlType(SqlTypeName.INTEGER);
                AggregateRel aggregate =
                    new AggregateRel(cluster, filter, BitSets.of(0),

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