Packages

class DelegatingTable extends Table

A concrete Table that adapts a TableInfo -- it contains only table metadata and defers read/write to Spark, which resolves the table provider into a data source at read time.

Catalogs build the metadata via TableInfo.Builder and return a DelegatingTable from TableCatalog#loadTable(Identifier) (or RelationCatalog#loadRelation for a data-source table) when they want Spark to handle the underlying source. A catalog that has its own Table object returns that instead. Views are never represented as a DelegatingTable: a view is a View, which is itself a Relation.

Annotations
@Evolving()
Source
DelegatingTable.java
Since

4.2.0

Linear Supertypes
Table, Relation, AnyRef, Any
Ordering
  1. Alphabetic
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Inherited
  1. DelegatingTable
  2. Table
  3. Relation
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new DelegatingTable(info: TableInfo, name: String)

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. def capabilities(): Set[TableCapability]

    Returns the set of capabilities for this table.

    Returns the set of capabilities for this table.

    Definition Classes
    DelegatingTable → Table
    Annotations
    @Override()
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
  7. def columns(): Array[Column]

    Returns the columns of this table.

    Returns the columns of this table. If the table is not readable and doesn't have a schema, an empty array can be returned here.

    Definition Classes
    DelegatingTable → Table → Relation
    Annotations
    @Override()
  8. def constraints(): Array[Constraint]

    Returns the constraints for this table.

    Returns the constraints for this table.

    Definition Classes
    DelegatingTable → Table
    Annotations
    @Override()
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  11. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  12. def getTableInfo(): TableInfo
  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  14. def id(): String

    An ID of the table that can be used to reliably check if two table objects refer to the same metastore entity.

    An ID of the table that can be used to reliably check if two table objects refer to the same metastore entity. If a table is dropped and recreated again with the same name, the new table ID must be different. This method must return null if connectors don't support the notion of table ID.

    Definition Classes
    Table
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. def name(): String

    A name to identify this table.

    A name to identify this table. Implementations should provide a meaningful name, like the database and table name from catalog, or the location of files for this table.

    Definition Classes
    DelegatingTable → Table
    Annotations
    @Override()
  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  20. def partitioning(): Array[Transform]

    Returns the physical partitioning of this table.

    Returns the physical partitioning of this table.

    Definition Classes
    DelegatingTable → Table
    Annotations
    @Override()
  21. def properties(): Map[String, String]

    Returns the string map of table properties.

    Returns the string map of table properties.

    Definition Classes
    DelegatingTable → Table → Relation
    Annotations
    @Override()
  22. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  23. def toString(): String
    Definition Classes
    AnyRef → Any
  24. def version(): String

    Returns the version of this table if versioning is supported, null otherwise.

    Returns the version of this table if versioning is supported, null otherwise.

    This method must not trigger a refresh of the table metadata. It should return the version that corresponds to the current state of this table instance.

    Definition Classes
    Table
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  27. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

  2. def schema(): StructType

    Returns the schema of this table.

    Returns the schema of this table. If the table is not readable and doesn't have a schema, an empty schema can be returned here.

    Definition Classes
    Table
    Annotations
    @Deprecated
    Deprecated

    (Since version 3.4.0)

Inherited from Table

Inherited from Relation

Inherited from AnyRef

Inherited from Any

Ungrouped