ReaderReadUpTo
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Restituisce fino a "num_records" (chiave, valore) coppie prodotte da un Reader.
Se necessario, verrà rimosso dalla coda di input (ad esempio quando il Reader deve iniziare a leggere da un nuovo file poiché ha terminato con il file precedente). Potrebbe restituire meno di "num_records" anche prima dell'ultimo batch.
Costanti
| Corda | OP_NAME | Il nome di questa operazione, come noto al motore principale di TensorFlow |
Metodi ereditati
Dalla classe java.lang.Object | booleano | è uguale a (Oggetto arg0) |
| Classe finale<?> | getClass () |
| int | codice hash () |
| vuoto finale | notificare () |
| vuoto finale | notificaTutti () |
| Corda | accordare () |
| vuoto finale | attendere (lungo arg0, int arg1) |
| vuoto finale | aspetta (lungo arg0) |
| vuoto finale | Aspettare () |
Costanti
Stringa finale statica pubblica OP_NAME
Il nome di questa operazione, come noto al motore principale di TensorFlow
Valore costante: "ReaderReadUpToV2"
Metodi pubblici
Metodo factory per creare una classe che racchiude una nuova operazione ReaderReadUpTo.
Parametri
| scopo | ambito attuale |
|---|
| readerHandle | Handle per un `Reader`. |
|---|
| codaHandle | Gestisci una "coda", con elementi di lavoro di tipo stringa. |
|---|
| numRecord | numero di record da leggere da "Reader". |
|---|
ritorna
- una nuova istanza di ReaderReadUpTo
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2025-07-25 UTC.
[null,null,["Ultimo aggiornamento 2025-07-25 UTC."],[],[],null,["# ReaderReadUpTo\n\npublic final class **ReaderReadUpTo** \nReturns up to \\`num_records\\` (key, value) pairs produced by a Reader.\n\n\nWill dequeue from the input queue if necessary (e.g. when the\nReader needs to start reading from a new file since it has finished\nwith the previous file).\nIt may return less than \\`num_records\\` even before the last batch.\n\n\u003cbr /\u003e\n\n### Constants\n\n|--------|---------------------------------------------------------------------------|---------------------------------------------------------|\n| String | [OP_NAME](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo#OP_NAME) | The name of this op, as known by TensorFlow core engine |\n\n### Public Methods\n\n|------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| static [ReaderReadUpTo](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo) | [create](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo#create(org.tensorflow.op.Scope, org.tensorflow.Operand\u003c?\u003e, org.tensorflow.Operand\u003c?\u003e, org.tensorflow.Operand\u003corg.tensorflow.types.TInt64\u003e))([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e readerHandle, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e queueHandle, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e numRecords) Factory method to create a class wrapping a new ReaderReadUpTo operation. |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TString](/jvm/api_docs/java/org/tensorflow/types/TString)\\\u003e | [keys](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo#keys())() A 1-D tensor. |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TString](/jvm/api_docs/java/org/tensorflow/types/TString)\\\u003e | [values](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo#values())() A 1-D tensor. |\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\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: \"ReaderReadUpToV2\"\n\nPublic Methods\n--------------\n\n#### public static [ReaderReadUpTo](/jvm/api_docs/java/org/tensorflow/op/io/ReaderReadUpTo)\n**create**\n([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e readerHandle, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c?\\\u003e queueHandle, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e numRecords)\n\nFactory method to create a class wrapping a new ReaderReadUpTo operation. \n\n##### Parameters\n\n| scope | current scope |\n| readerHandle | Handle to a \\`Reader\\`. |\n| queueHandle | Handle to a \\`Queue\\`, with string work items. |\n| numRecords | number of records to read from \\`Reader\\`. |\n|--------------|------------------------------------------------|\n\n##### Returns\n\n- a new instance of ReaderReadUpTo \n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TString](/jvm/api_docs/java/org/tensorflow/types/TString)\\\u003e\n**keys**\n()\n\nA 1-D tensor. \n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TString](/jvm/api_docs/java/org/tensorflow/types/TString)\\\u003e\n**values**\n()\n\nA 1-D tensor."]]
