org.tensorics.core.tensor.operations

Class TensorInternals

java.lang.Object

org.tensorics.core.tensor.operations.TensorInternals

public final class TensorInternals
extends java.lang.Object

Utility methods for tensors which are not exposed to the public API

Method Summary

Modifier and Type	Method and Description
static <S> Tensor<S>	createFrom(Shape shape, java.util.function.Function<Position,S> function)
static <S> Tensor<S>	createFrom(Shape shape, java.util.function.Supplier<S> supplier)
static <T> java.util.Set<java.util.Map.Entry<Position,T>>	entrySetOf(Tensor<T> tensor)
static <V> java.util.Map<Position,V>	mapFrom(Tensor<V> tensor) Returns a map representing the content of the given tensor.
static <T> OngoingMapOut<T>	mapOut(Tensor<T> tensor)
static <S> Tensor<S>	sameValues(Shape shape, S value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

mapOut

public static <T> OngoingMapOut<T> mapOut(Tensor<T> tensor)

entrySetOf

public static <T> java.util.Set<java.util.Map.Entry<Position,T>> entrySetOf(Tensor<T> tensor)

sameValues

public static <S> Tensor<S> sameValues(Shape shape,
                                       S value)

createFrom

public static <S> Tensor<S> createFrom(Shape shape,
                                       java.util.function.Supplier<S> supplier)

createFrom

public static <S> Tensor<S> createFrom(Shape shape,
                                       java.util.function.Function<Position,S> function)

mapFrom

public static <V> java.util.Map<Position,V> mapFrom(Tensor<V> tensor)

Returns a map representing the content of the given tensor. The concrete instance of the map might differ depending on the implementation of the passed in tensor: Tensor implementations can offer a more efficient way to retrieve a map from them, by implementing the Mappable interface. If this interface is present, then its Mappable.asMap() method will be called. Otherwise, as a fallback, a new immutable map will be created from information from the shape of the passed in tensor and its values.

Parameters:

tensor - the tensor from which a map should be returned

Returns:

a map representing the content of the tensor

Throws:

java.lang.NullPointerException - in case the passed in tensor is null