Packages

final case class ChildLink(childIndex: Int = 0, type: String = "", variable: String = "", unknownFields: UnknownFieldSet = ...) extends GeneratedMessage with Updatable[ChildLink] with Product with Serializable

Metadata associated with a parent-child relationship appearing in a [PlanNode][google.spanner.v1.PlanNode].

childIndex

The node to which the link points.

type

The type of the link. For example, in Hash Joins this could be used to distinguish between the build child and the probe child, or in the case of the child being an output variable, to represent the tag associated with the output variable.

variable

Only present if the child node is [SCALAR][google.spanner.v1.PlanNode.Kind.SCALAR] and corresponds to an output variable of the parent node. The field carries the name of the output variable. For example, a TableScan operator that reads rows from a table will have child links to the SCALAR nodes representing the output variables created for each column that is read by the operator. The corresponding variable fields will be set to the variable names assigned to the columns.

Annotations
@SerialVersionUID()
Linear Supertypes
Product, Equals, Updatable[ChildLink], GeneratedMessage, Serializable, Serializable, AnyRef, Any
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Inherited
  1. ChildLink
  2. Product
  3. Equals
  4. Updatable
  5. GeneratedMessage
  6. Serializable
  7. Serializable
  8. AnyRef
  9. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new ChildLink(childIndex: Int = 0, type: String = "", variable: String = "", unknownFields: UnknownFieldSet = ...)

    childIndex

    The node to which the link points.

    type

    The type of the link. For example, in Hash Joins this could be used to distinguish between the build child and the probe child, or in the case of the child being an output variable, to represent the tag associated with the output variable.

    variable

    Only present if the child node is [SCALAR][google.spanner.v1.PlanNode.Kind.SCALAR] and corresponds to an output variable of the parent node. The field carries the name of the output variable. For example, a TableScan operator that reads rows from a table will have child links to the SCALAR nodes representing the output variables created for each column that is read by the operator. The corresponding variable fields will be set to the variable names assigned to the columns.

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. val childIndex: Int
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. def companion: ChildLink.type
    Definition Classes
    ChildLink → GeneratedMessage
  8. def discardUnknownFields: ChildLink
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def getField(__field: FieldDescriptor): PValue
    Definition Classes
    ChildLink → GeneratedMessage
  13. def getFieldByNumber(__fieldNumber: Int): Any
    Definition Classes
    ChildLink → GeneratedMessage
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  17. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. def serializedSize: Int
    Definition Classes
    ChildLink → GeneratedMessage
  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  20. final def toByteArray: Array[Byte]
    Definition Classes
    GeneratedMessage
  21. final def toByteString: ByteString
    Definition Classes
    GeneratedMessage
  22. final def toPMessage: PMessage
    Definition Classes
    GeneratedMessage
  23. def toProtoString: String
    Definition Classes
    ChildLink → GeneratedMessage
  24. val type: String
  25. val unknownFields: UnknownFieldSet
  26. def update(ms: (Lens[ChildLink, ChildLink]) ⇒ scalapb.lenses.Mutation[ChildLink]*): ChildLink
    Definition Classes
    Updatable
  27. val variable: String
  28. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  31. def withChildIndex(__v: Int): ChildLink
  32. def withType(__v: String): ChildLink
  33. def withUnknownFields(__v: UnknownFieldSet): ChildLink
  34. def withVariable(__v: String): ChildLink
  35. final def writeDelimitedTo(output: OutputStream): Unit
    Definition Classes
    GeneratedMessage
  36. def writeTo(_output__: CodedOutputStream): Unit
    Definition Classes
    ChildLink → GeneratedMessage
  37. final def writeTo(output: OutputStream): Unit
    Definition Classes
    GeneratedMessage

Inherited from Product

Inherited from Equals

Inherited from Updatable[ChildLink]

Inherited from GeneratedMessage

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped