HashTable

Generic hash table implementation for lookup tables.

The constructor creates a hash table, specifying the type of its keys and values. Before using the table the caller will have to initialize it. After initialization the table will be immutable.

Example usage:

val table = HashTable(LookupTableTensorInitializer(keys, values), -1)
val output = table.lookup(input)
// Can now run evaluate the `output` tensor after executing the table initializer.

initializer: Lookup table initializer to use.
defaultValue: Default value to use if a key is missing from the table.
container: If non-empty, the created table is placed in the given container. Otherwise, a default container is used.
sharedName: If non-empty, the created table is named in the given bucket with this shared name. Otherwise, the op name is used, instead.
useNodeNameSharing: If set to true and sharedName is empty, the table is shared using the node name.
name: Name for the created table.

Linear Supertypes

Serializable, Serializable, Product, Equals, InitializableLookupTable, LookupTable, AnyRef, Any

Instance Constructors

new HashTable(initializer: LookupTableInitializer, defaultValue: Output, container: String = "", sharedName: String = "", useNodeNameSharing: Boolean = false, name: String = "HashTable")

initializer
Lookup table initializer to use.
defaultValue
Default value to use if a key is missing from the table.
container
If non-empty, the created table is placed in the given container. Otherwise, a default container is used.
sharedName
If non-empty, the created table is named in the given bucket with this shared name. Otherwise, the op name is used, instead.
useNodeNameSharing
If set to true and sharedName is empty, the table is shared using the node name.
name
Name for the created table.

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 checkDataTypes(keysDataType: types.DataType, valuesDataType: types.DataType): Unit

Checks that the provided keys and values data types match those expected for this lookup table and throws an InvalidDataTypeException if they do not.
Checks that the provided keys and values data types match those expected for this lookup table and throws an InvalidDataTypeException if they do not.
keysDataType
Provided keys data type to check.
valuesDataType
Provided values data type to check.

Definition Classes
LookupTable
Annotations
@throws( ... )
Exceptions thrown
InvalidDataTypeException If any of the provided data type does not match the corresponding expected type.
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
val container: String

If non-empty, the created table is placed in the given container.
If non-empty, the created table is placed in the given container. Otherwise, a default container is used.
val defaultValue: Output

Default value to use if a key is missing from the table.
Default value to use if a key is missing from the table.

Definition Classes
HashTable → InitializableLookupTable
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def finalize(): Unit

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

Definition Classes
AnyRef → Any
val handle: Output

Resource handle to a lookup table.
Resource handle to a lookup table.

Definition Classes
InitializableLookupTable
def initialize(name: String = "Initialize"): Op

Creates and returns an op used to initialize this table.
Creates and returns an op used to initialize this table.
name
Name for the created op.
returns
Created op.

Definition Classes
InitializableLookupTable → LookupTable
val initializer: LookupTableInitializer

Lookup table initializer to use.
Lookup table initializer to use.

Attributes
protected
Definition Classes
HashTable → InitializableLookupTable
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val keysDataType: types.DataType

Data type of the table keys.
Data type of the table keys.

Definition Classes
LookupTable
def lookup[T <: OutputLike](keys: T, name: String = "Lookup")(implicit arg0: OutputOps[T]): T

Creates an op that looks up the provided keys in this table and returns the corresponding values.
Creates an op that looks up the provided keys in this table and returns the corresponding values.
keys
Tensor containing the keys to look up.
name
Name for the created op.
returns
Created op output.

Definition Classes
InitializableLookupTable → LookupTable
Annotations
@throws( ... )
Exceptions thrown
InvalidDataTypeException If the provided keys data types does not match the keys data type of this table.
val name: String

Name for the created table.
Name for the created table.

Definition Classes
HashTable → LookupTable
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val sharedName: String

If non-empty, the created table is named in the given bucket with this shared name.
If non-empty, the created table is named in the given bucket with this shared name. Otherwise, the op name is used, instead.
def size(name: String = "Size"): Output

Creates an op that computes the number of elements in this table.
Creates an op that computes the number of elements in this table.
name
Name for the created op.
returns
Created op output.

Definition Classes
InitializableLookupTable → LookupTable
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
val useNodeNameSharing: Boolean

If set to true and sharedName is empty, the table is shared using the node name.
val valuesDataType: types.DataType

Data type of the table values.
Data type of the table values.

Definition Classes
LookupTable
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 Doc: package lookup

case class HashTable(initializer: LookupTableInitializer, defaultValue: Output, container: String = "", sharedName: String = "", useNodeNameSharing: Boolean = false, name: String = "HashTable") extends InitializableLookupTable with Product with Serializable

Instance Constructors

new HashTable(initializer: LookupTableInitializer, defaultValue: Output, container: String = "", sharedName: String = "", useNodeNameSharing: Boolean = false, name: String = "HashTable")

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def checkDataTypes(keysDataType: types.DataType, valuesDataType: types.DataType): Unit

def clone(): AnyRef

val container: String

val defaultValue: Output

final def eq(arg0: AnyRef): Boolean

def finalize(): Unit

final def getClass(): Class[_]

val handle: Output

def initialize(name: String = "Initialize"): Op

val initializer: LookupTableInitializer

final def isInstanceOf[T0]: Boolean

val keysDataType: types.DataType

def lookup[T <: OutputLike](keys: T, name: String = "Lookup")(implicit arg0: OutputOps[T]): T

val name: String

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val sharedName: String

def size(name: String = "Size"): Output

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

val useNodeNameSharing: Boolean

val valuesDataType: types.DataType

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from InitializableLookupTable

Inherited from LookupTable

Inherited from AnyRef

Inherited from Any

Ungrouped