ReaderReadUpTo
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Retorna até pares `num_records` (chave, valor) produzidos por um leitor.
Irá retirar da fila de entrada se necessário (por exemplo, quando o Reader precisar começar a ler um novo arquivo, uma vez que terminou o arquivo anterior). Pode retornar menos que `num_records` mesmo antes do último lote.
Constantes
Corda | OP_NAME | O nome desta operação, conforme conhecido pelo mecanismo principal do TensorFlow |
Métodos herdados
Da classe java.lang.Object boleano | é igual (objeto arg0) |
aula final<?> | getClass () |
interno | código hash () |
vazio final | notificar () |
vazio final | notificar todos () |
Corda | para sequenciar () |
vazio final | espere (long arg0, int arg1) |
vazio final | espere (arg0 longo) |
vazio final | espere () |
Constantes
String final estática pública OP_NAME
O nome desta operação, conforme conhecido pelo mecanismo principal do TensorFlow
Valor Constante: "ReaderReadUpToV2"
Métodos Públicos
Método de fábrica para criar uma classe que envolve uma nova operação ReaderReadUpTo.
Parâmetros
escopo | escopo atual |
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leitorHandle | Identificador para um `Leitor`. |
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queueHandle | Identificador para uma `Queue`, com itens de trabalho de string. |
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numRecords | número de registros a serem lidos do `Reader`. |
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Devoluções
- uma nova instância de ReaderReadUpTo
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Última atualização 2025-07-25 UTC.
[null,null,["Última atualização 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."]]