DatasetCardinality
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Enregistrez et classez les contenus selon vos préférences.
Renvoie la cardinalité de `input_dataset`.
Renvoie la cardinalité de `input_dataset`.
Constantes
| Chaîne | OP_NAME | Le nom de cette opération, tel que connu par le moteur principal TensorFlow |
Méthodes héritées
De la classe java.lang.Object | booléen | est égal à (Objet arg0) |
| Classe finale<?> | obtenirClasse () |
| int | Code de hachage () |
| vide final | notifier () |
| vide final | notifierTous () |
| Chaîne | àChaîne () |
| vide final | attendre (long arg0, int arg1) |
| vide final | attendez (long arg0) |
| vide final | attendez () |
Constantes
chaîne finale statique publique OP_NAME
Le nom de cette opération, tel que connu par le moteur principal TensorFlow
Valeur constante : « ExperimentalDatasetCardinality »
Méthodes publiques
Sortie publique < TInt64 > asOutput ()
Renvoie le handle symbolique du tenseur.
Les entrées des opérations TensorFlow sont les sorties d'une autre opération TensorFlow. Cette méthode est utilisée pour obtenir un handle symbolique qui représente le calcul de l’entrée.
sortie publique < TInt64 > cardinalité ()
La cardinalité de `input_dataset`. Les constantes nommées sont utilisées pour représenter une cardinalité infinie et inconnue.
Méthode d'usine pour créer une classe encapsulant une nouvelle opération DatasetCardinality.
Paramètres
| portée | portée actuelle |
|---|
| jeu de données d'entrée | Un tenseur variant représentant l'ensemble de données pour lequel renvoyer la cardinalité. |
|---|
Retour
- une nouvelle instance de DatasetCardinality
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/07/26 (UTC).
[null,null,["Dernière mise à jour le 2025/07/26 (UTC)."],[],[],null,["# DatasetCardinality\n\npublic final class **DatasetCardinality** \nReturns the cardinality of \\`input_dataset\\`.\n\n\nReturns the cardinality of \\`input_dataset\\`.\n\n\u003cbr /\u003e\n\n### Constants\n\n|--------|----------------------------------------------------------------------------------------------|---------------------------------------------------------|\n| String | [OP_NAME](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality#OP_NAME) | The name of this op, as known by TensorFlow core engine |\n\n### Public Methods\n\n|----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e | [asOutput](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality#asOutput())() Returns the symbolic handle of the tensor. |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e | [cardinality](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality#cardinality())() The cardinality of \\`input_dataset\\`. |\n| static [DatasetCardinality](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality) | [create](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality#create(org.tensorflow.op.Scope, org.tensorflow.Operand\u003c?\u003e))([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e inputDataset) Factory method to create a class wrapping a new DatasetCardinality operation. |\n\n### Inherited Methods\n\nFrom class [org.tensorflow.op.RawOp](/jvm/api_docs/java/org/tensorflow/op/RawOp) \n\n|----------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| final boolean | [equals](/jvm/api_docs/java/org/tensorflow/op/RawOp#equals(java.lang.Object))(Object obj) |\n| final int | [hashCode](/jvm/api_docs/java/org/tensorflow/op/RawOp#hashCode())() |\n| [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/RawOp#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n| final String | [toString](/jvm/api_docs/java/org/tensorflow/op/RawOp#toString())() |\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nFrom interface [org.tensorflow.op.Op](/jvm/api_docs/java/org/tensorflow/op/Op) \n\n|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [ExecutionEnvironment](/jvm/api_docs/java/org/tensorflow/ExecutionEnvironment) | [env](/jvm/api_docs/java/org/tensorflow/op/Op#env())() Return the execution environment this op was created in. |\n| abstract [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/Op#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n\nFrom interface [org.tensorflow.Operand](/jvm/api_docs/java/org/tensorflow/Operand) \n\n|-------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e | [asOutput](/jvm/api_docs/java/org/tensorflow/Operand#asOutput())() Returns the symbolic handle of the tensor. |\n| abstract [TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64) | [asTensor](/jvm/api_docs/java/org/tensorflow/Operand#asTensor())() Returns the tensor at this operand. |\n| abstract [Shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shape) | [shape](/jvm/api_docs/java/org/tensorflow/Operand#shape())() Returns the (possibly partially known) shape of the tensor referred to by the [Output](/jvm/api_docs/java/org/tensorflow/Output) of this operand. |\n| abstract Class\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e | [type](/jvm/api_docs/java/org/tensorflow/Operand#type())() Returns the tensor type of this operand |\n\nFrom interface [org.tensorflow.ndarray.Shaped](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped) \n\n|-------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract int | [rank](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#rank())() |\n| abstract [Shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shape) | [shape](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#shape())() |\n| abstract long | [size](/jvm/api_docs/java/org/tensorflow/ndarray/Shaped#size())() Computes and returns the total size of this container, in number of values. |\n\nConstants\n---------\n\n#### public static final String\n**OP_NAME**\n\nThe name of this op, as known by TensorFlow core engine \nConstant Value: \"ExperimentalDatasetCardinality\"\n\nPublic Methods\n--------------\n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e\n**asOutput**\n()\n\nReturns the symbolic handle of the tensor.\n\nInputs to TensorFlow operations are outputs of another TensorFlow operation. This method is\nused to obtain a symbolic handle that represents the computation of the input.\n\n\u003cbr /\u003e\n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e\n**cardinality**\n()\n\nThe cardinality of \\`input_dataset\\`. Named constants are used to represent\ninfinite and unknown cardinality. \n\n#### public static [DatasetCardinality](/jvm/api_docs/java/org/tensorflow/op/data/experimental/DatasetCardinality)\n**create**\n([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e inputDataset)\n\nFactory method to create a class wrapping a new DatasetCardinality operation. \n\n##### Parameters\n\n| scope | current scope |\n| inputDataset | A variant tensor representing the dataset to return cardinality for. |\n|--------------|----------------------------------------------------------------------|\n\n##### Returns\n\n- a new instance of DatasetCardinality"]]
