FileStatusCache

A cache of the leaf files of partition directories. We cache these files in order to speed up iterated queries over the same set of partitions. Otherwise, each query would have to hit remote storage in order to gather file statistics for physical planning.

Each resolved catalog table has its own FileStatusCache. When the backing relation for the table is refreshed via refreshTable() or refreshByPath(), this cache will be invalidated.

Linear Supertypes

AnyRef, Any

Known Subclasses

NoopCache

Instance Constructors

new FileStatusCache()

Abstract Value Members

abstract def invalidateAll(): Unit

Invalidates all data held by this cache.
abstract def putLeafFiles(path: Path, leafFiles: Array[FileStatus]): Unit

Saves the given set of leaf files for a path in this cache.

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def getLeafFiles(path: Path): Option[Array[FileStatus]]

returns
the leaf files for the specified path from this cache, or None if not cached.
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: object FileStatusCache | package datasources

abstract class FileStatusCache extends AnyRef

Instance Constructors

new FileStatusCache()

Abstract Value Members

abstract def invalidateAll(): Unit

abstract def putLeafFiles(path: Path, leafFiles: Array[FileStatus]): Unit

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def getLeafFiles(path: Path): Option[Array[FileStatus]]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped