LMDBDataset

public final class LMDBDataset

Creates a dataset that emits the key-value pairs in one or more LMDB files.

The Lightning Memory-Mapped Database Manager, or LMDB, is an embedded binary key-value database. This dataset can read the contents of LMDB database files, the names of which generally have the `.mdb` suffix.

Each output element consists of a key-value pair represented as a pair of scalar string `Tensor`s, where the first `Tensor` contains the key and the second `Tensor` contains the value.

LMDB uses different file formats on big- and little-endian machines. `LMDBDataset` can only read files in the format of the host machine.

Public Methods

Output<Object>
asOutput()
Returns the symbolic handle of a tensor.
static LMDBDataset
create(Scope scope, Operand<String> filenames, List<Class<?>> outputTypes, List<Shape> outputShapes)
Factory method to create a class wrapping a new LMDBDataset operation.
Output<?>
handle()

Inherited Methods

org.tensorflow.op.PrimitiveOp
final boolean
equals(Object obj)
final int
hashCode()
Operation
op()
Returns the underlying Operation
final String
toString()
boolean
equals(Object arg0)
final Class<?>
getClass()
int
hashCode()
final void
notify()
final void
notifyAll()
String
toString()
final void
wait(long arg0, int arg1)
final void
wait(long arg0)
final void
wait()
org.tensorflow.Operand
abstract Output<Object>
asOutput()
Returns the symbolic handle of a tensor.

Public Methods

public Output<Object> asOutput ()

Returns the symbolic handle of a tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

public static LMDBDataset create (Scope scope, Operand<String> filenames, List<Class<?>> outputTypes, List<Shape> outputShapes)

Factory method to create a class wrapping a new LMDBDataset operation.

Parameters
scope current scope
filenames A scalar or a vector containing the name(s) of the binary file(s) to be read.
Returns
  • a new instance of LMDBDataset

public Output<?> handle ()