ast

Type Members

1. sealed trait Action extends Ast

   

2. case class Aggregation(operator: AggregationOperator, ast: Ast) extends Query with Product with Serializable

   

3. sealed trait AggregationOperator extends Operator

   

4. case class Assignment(alias: Ident, property: Ast, value: Ast) extends Ast with Product with Serializable

   

5. sealed trait Ast extends AnyRef

   

6. case class BinaryOperation(a: Ast, operator: BinaryOperator, b: Ast) extends Operation with Product with Serializable

   

7. sealed trait BinaryOperator extends Operator

   

8. case class Block(statements: List[Ast]) extends Ast with Product with Serializable

   

9. case class CaseClass(values: List[(String, Ast)]) extends Value with Product with Serializable

   

10. sealed trait CaseClassLift extends Lift

    

11. case class CaseClassQueryLift(name: String, value: Any) extends CaseClassLift with Product with Serializable

    

12. case class CaseClassValueLift(name: String, value: Any) extends CaseClassLift with Product with Serializable

    

13. class CollectAst[T] extends StatefulTransformer[List[T]]

    

14. case class ConcatMap(query: Ast, alias: Ident, body: Ast) extends Query with Product with Serializable

    

15. case class Constant(v: Any) extends Value with Product with Serializable

    

16. case class Delete(query: Ast) extends Action with Product with Serializable

    

17. case class Distinct(a: Ast) extends Query with Product with Serializable

    

18. case class Drop(query: Ast, n: Ast) extends Query with Product with Serializable

    

19. case class Dynamic(tree: Any) extends Ast with Product with Serializable

    

20. case class Entity(name: String, properties: List[PropertyAlias]) extends Query with Product with Serializable

    

    Entities represent the actual tables/views being selected.

    Entities represent the actual tables/views being selected. Typically, something like:

    `SELECT p.name FROM People p`
    

    comes from something like:

    `Map(Entity("People", Nil), Ident("p"), Property(Ident(p), "name"))`.
    

    When you define a querySchema, the fields you mention inside become PropertyAliass. For example something like:

    `querySchema[Person]("t_person", _.name -> "s_name")`
    

    Becomes something like:

    `Entity("t_person", List(PropertyAlias(List("name"), "s_name"))) { def renameable = Fixed }`
    

    Note that Entity has an Opinion called renameable which will be the value Fixed when a querySchema is specified. That means that even if the NamingSchema is UpperCase, the resulting query will select t_person as opposed to T_PERSON or Person.

    SELECT p.name FROM People p something like:

    `Map(Entity("People", Nil), Ident("p"), Property(Ident(p), "name"))`.
    

    When you define a `querySchema`, the fields you mention inside become `PropertyAlias`s. For example something like:

    `querySchema[Person]("t_person", _.name -> "s_name")`
    

    Becomes something like:

    `Entity("t_person", List(PropertyAlias(List("name"), "s_name"))) { def renameable = Fixed }`
    

    Note that Entity has an Opinion called `renameable` which will be the value `Fixed` when a `querySchema` is specified. That means that even if the `NamingSchema` is `UpperCase`, the resulting query will select `t_person` as opposed to `T_PERSON` or `Person`.

21. case class ExternalIdent(name: String) extends Ast with Product with Serializable

    

22. case class Filter(query: Ast, alias: Ident, body: Ast) extends Query with Product with Serializable

    

23. case class FlatJoin(typ: JoinType, a: Ast, aliasA: Ident, on: Ast) extends Query with Product with Serializable

    

24. case class FlatMap(query: Ast, alias: Ident, body: Ast) extends Query with Product with Serializable

    

25. case class Foreach(query: Ast, alias: Ident, body: Ast) extends Action with Product with Serializable

    

26. case class Function(params: List[Ident], body: Ast) extends Ast with Product with Serializable

    

27. case class FunctionApply(function: Ast, values: List[Ast]) extends Operation with Product with Serializable

    

28. case class GroupBy(query: Ast, alias: Ident, body: Ast) extends Query with Product with Serializable

    

29. case class Ident(name: String) extends Ast with Product with Serializable

    

30. case class If(condition: Ast, then: Ast, else: Ast) extends Ast with Product with Serializable

    

31. case class Infix(parts: List[String], params: List[Ast], pure: Boolean) extends Ast with Product with Serializable

    

32. case class Insert(query: Ast, assignments: List[Assignment]) extends Action with Product with Serializable

    

33. case class Join(typ: JoinType, a: Ast, b: Ast, aliasA: Ident, aliasB: Ident, on: Ast) extends Query with Product with Serializable

    

34. sealed trait JoinType extends AnyRef

    

35. sealed trait Lift extends Ast

    

36. case class ListContains(ast: Ast, body: Ast) extends TraversableOperation with Product with Serializable

    

37. case class Map(query: Ast, alias: Ident, body: Ast) extends Query with Product with Serializable

    

38. case class MapContains(ast: Ast, body: Ast) extends TraversableOperation with Product with Serializable

    

39. case class Nested(a: Ast) extends Query with Product with Serializable

    

40. case class OnConflict(insert: Ast, target: Target, action: OnConflict.Action) extends Action with Product with Serializable

    

41. sealed trait Operation extends Ast

    

42. sealed trait Operator extends AnyRef

    

43. sealed trait Opinion[T] extends AnyRef

    

    An Opinion represents a piece of data that needs to be propagated through AST transformations but is not directly related to how ASTs are transformed in most stages.

    An Opinion represents a piece of data that needs to be propagated through AST transformations but is not directly related to how ASTs are transformed in most stages. For instance, Renameable controls how columns are named (i.e. whether to use a NamingStrategy or not) after most of the SQL transformations are done. Some transformations (e.g. RenameProperties will use Opinions or even modify them so that the correct kind of query comes out at the end of the normalizations. That said, Opinions should be transparent in most steps of the normalization. In some cases e.g. BetaReduction, AST elements need to be neutralized (i.e. set back to defaults in the entire tree) so that this works correctly.

44. sealed trait OpinionValues[T <: Opinion[T]] extends AnyRef

    

45. case class OptionApply(ast: Ast) extends OptionOperation with Product with Serializable

    

46. case class OptionContains(ast: Ast, body: Ast) extends OptionOperation with Product with Serializable

    

47. case class OptionExists(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

48. case class OptionFlatMap(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

49. case class OptionFlatten(ast: Ast) extends OptionOperation with Product with Serializable

    

50. case class OptionForall(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

51. case class OptionGetOrElse(ast: Ast, body: Ast) extends OptionOperation with Product with Serializable

    

52. case class OptionGetOrNull(ast: Ast) extends OptionOperation with Product with Serializable

    

53. case class OptionIsDefined(ast: Ast) extends OptionOperation with Product with Serializable

    

54. case class OptionIsEmpty(ast: Ast) extends OptionOperation with Product with Serializable

    

55. case class OptionMap(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

56. case class OptionNonEmpty(ast: Ast) extends OptionOperation with Product with Serializable

    

57. sealed trait OptionOperation extends Ast

    

58. case class OptionOrNull(ast: Ast) extends OptionOperation with Product with Serializable

    

59. case class OptionSome(ast: Ast) extends OptionOperation with Product with Serializable

    

60. case class OptionTableExists(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

61. case class OptionTableFlatMap(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

62. case class OptionTableForall(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

63. case class OptionTableMap(ast: Ast, alias: Ident, body: Ast) extends OptionOperation with Product with Serializable

    

64. sealed trait Ordering extends Ast

    

65. sealed trait PostfixUnaryOperator extends UnaryOperator

    

66. sealed trait PrefixUnaryOperator extends UnaryOperator

    

67. case class Property(ast: Ast, name: String) extends Ast with Product with Serializable

    

    Properties generally represent column selection from a table or invocation of some kind of method from some other object.

    Properties generally represent column selection from a table or invocation of some kind of method from some other object. Typically, something like

    `SELECT p.name FROM People p`
    

    comes from something like

    `Map(Entity("People"), Ident("p"), Property(Ident(p), "name"))`
    

    Properties also have an Opinion about how the NamingStrategy affects their name. For example something like Property.Opinionated(Ident(p), "s_name", Fixed) will become p.s_name even if the NamingStrategy is UpperCase (whereas Property(Ident(p), "s_name") would become p.S_NAME). When Property is constructed without Opinionated being used, the default opinion ByStrategy is used.

    SELECT p.name FROM People p something like

    `Map(Entity("People"), Ident("p"), Property(Ident(p), "name"))`
    

    Properties also have an Opinion about how the `NamingStrategy` affects their name. For example something like `Property.Opinionated(Ident(p), "s_name", Fixed)` will become `p.s_name` even if the `NamingStrategy` is `UpperCase` (whereas `Property(Ident(p), "s_name")` would become `p.S_NAME`). When Property is constructed without `Opinionated` being used, the default opinion `ByStrategy` is used.

68. case class PropertyAlias(path: List[String], alias: String) extends Product with Serializable

    

69. sealed trait PropertyOrdering extends Ordering

    

70. sealed trait Query extends Ast

    

71. case class QuotedReference(tree: Any, ast: Ast) extends Ast with Product with Serializable

    

72. sealed trait Renameable extends Opinion[Renameable]

    

73. case class Returning(action: Ast, alias: Ident, property: Ast) extends ReturningAction with Product with Serializable

    

74. sealed trait ReturningAction extends Action

    

75. case class ReturningGenerated(action: Ast, alias: Ident, property: Ast) extends ReturningAction with Product with Serializable

    

76. sealed trait ScalarLift extends Lift

    

77. case class ScalarQueryLift(name: String, value: Any, encoder: Any) extends ScalarLift with Product with Serializable

    

78. case class ScalarValueLift(name: String, value: Any, encoder: Any) extends ScalarLift with Product with Serializable

    

79. case class SetContains(ast: Ast, body: Ast) extends TraversableOperation with Product with Serializable

    

80. case class SortBy(query: Ast, alias: Ident, criterias: Ast, ordering: Ast) extends Query with Product with Serializable

    

81. trait StatefulTransformer[T] extends AnyRef

    

82. trait StatelessTransformer extends AnyRef

    

83. case class Take(query: Ast, n: Ast) extends Query with Product with Serializable

    

84. class Transform[T] extends StatelessTransformer

    

85. sealed trait TraversableOperation extends Ast

    

86. case class Tuple(values: List[Ast]) extends Value with Product with Serializable

    

87. case class TupleOrdering(elems: List[Ordering]) extends Ordering with Product with Serializable

    

88. case class UnaryOperation(operator: UnaryOperator, ast: Ast) extends Operation with Product with Serializable

    

89. sealed trait UnaryOperator extends Operator

    

90. case class Union(a: Ast, b: Ast) extends Query with Product with Serializable

    

91. case class UnionAll(a: Ast, b: Ast) extends Query with Product with Serializable

    

92. case class Update(query: Ast, assignments: List[Assignment]) extends Action with Product with Serializable

    

93. case class Val(name: Ident, body: Ast) extends Ast with Product with Serializable

    

94. sealed trait Value extends Ast