[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eBatchingDescriptor\u003c/code\u003e interface in the Google API Client Libraries for Java (gax), with the latest version being 2.63.1.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBatchingDescriptor\u003c/code\u003e interface is designed for managing batched requests and responses, ensuring all methods are stateless and thread-safe.\u003c/p\u003e\n"],["\u003cp\u003eThe interface offers methods such as \u003ccode\u003ecountBytes\u003c/code\u003e, \u003ccode\u003ecountElements\u003c/code\u003e, \u003ccode\u003egetBatchPartitionKey\u003c/code\u003e, \u003ccode\u003egetRequestBuilder\u003c/code\u003e, \u003ccode\u003esplitException\u003c/code\u003e, and \u003ccode\u003esplitResponse\u003c/code\u003e for handling various aspects of batching operations.\u003c/p\u003e\n"],["\u003cp\u003eThere is a list of several version releases of the batching descriptor, going back as far as version 2.7.1, showing a history of the API's development.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBatchingDescriptor\u003c/code\u003e interface facilitates request/response data transformation and is intended for use by generated code.\u003c/p\u003e\n"]]],[],null,["# Interface BatchingDescriptor<RequestT,ResponseT> (2.69.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.69.0 (latest)](/java/docs/reference/gax/latest/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.68.2](/java/docs/reference/gax/2.68.2/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.67.0](/java/docs/reference/gax/2.67.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.66.0](/java/docs/reference/gax/2.66.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.65.0](/java/docs/reference/gax/2.65.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.63.1](/java/docs/reference/gax/2.63.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.62.0](/java/docs/reference/gax/2.62.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.61.0](/java/docs/reference/gax/2.61.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.60.0](/java/docs/reference/gax/2.60.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.59.1](/java/docs/reference/gax/2.59.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.58.0](/java/docs/reference/gax/2.58.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.57.0](/java/docs/reference/gax/2.57.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.55.0](/java/docs/reference/gax/2.55.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.54.1](/java/docs/reference/gax/2.54.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.53.0](/java/docs/reference/gax/2.53.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.52.0](/java/docs/reference/gax/2.52.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.51.0](/java/docs/reference/gax/2.51.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.50.0](/java/docs/reference/gax/2.50.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.49.0](/java/docs/reference/gax/2.49.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.48.1](/java/docs/reference/gax/2.48.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.47.0](/java/docs/reference/gax/2.47.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.46.1](/java/docs/reference/gax/2.46.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.45.0](/java/docs/reference/gax/2.45.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.43.0](/java/docs/reference/gax/2.43.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.42.0](/java/docs/reference/gax/2.42.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.41.0](/java/docs/reference/gax/2.41.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.39.0](/java/docs/reference/gax/2.39.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.38.0](/java/docs/reference/gax/2.38.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.37.0](/java/docs/reference/gax/2.37.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.36.0](/java/docs/reference/gax/2.36.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.35.0](/java/docs/reference/gax/2.35.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.34.1](/java/docs/reference/gax/2.34.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.33.0](/java/docs/reference/gax/2.33.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.32.1](/java/docs/reference/gax/2.32.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.31.1](/java/docs/reference/gax/2.31.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.30.1](/java/docs/reference/gax/2.30.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.24.0](/java/docs/reference/gax/2.24.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.23.3](/java/docs/reference/gax/2.23.3/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.22.0](/java/docs/reference/gax/2.22.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.21.0](/java/docs/reference/gax/2.21.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.20.1](/java/docs/reference/gax/2.20.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.19.6](/java/docs/reference/gax/2.19.6/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.18.7](/java/docs/reference/gax/2.18.7/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.17.0](/java/docs/reference/gax/2.17.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.16.0](/java/docs/reference/gax/2.16.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.15.0](/java/docs/reference/gax/2.15.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.14.0](/java/docs/reference/gax/2.14.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.13.0](/java/docs/reference/gax/2.13.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.12.2](/java/docs/reference/gax/2.12.2/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.11.0](/java/docs/reference/gax/2.11.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.10.0](/java/docs/reference/gax/2.10.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.9.0](/java/docs/reference/gax/2.9.0/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.8.1](/java/docs/reference/gax/2.8.1/com.google.api.gax.rpc.BatchingDescriptor)\n- [2.7.1](/java/docs/reference/gax/2.7.1/com.google.api.gax.rpc.BatchingDescriptor) \n\n public interface BatchingDescriptor\u003cRequestT,ResponseT\u003e\n\nInterface which represents an object that transforms request/response data for the purposes of\nbatching.\n\nImplementations of BatchingDescriptor must guarantee that all methods are stateless and thread\nsafe.\n\nThis class is designed to be used by generated code.\n\nMethods\n-------\n\n### countBytes(RequestT request)\n\n public abstract long countBytes(RequestT request)\n\nReturns the size in bytes of this request.\n\n### countElements(RequestT request)\n\n public abstract long countElements(RequestT request)\n\nReturns the number of elements contained in this request.\n\n### getBatchPartitionKey(RequestT request)\n\n public abstract PartitionKey getBatchPartitionKey(RequestT request)\n\nReturns the value of the partition key for the given request.\n\n### getRequestBuilder()\n\n public abstract RequestBuilder\u003cRequestT\u003e getRequestBuilder()\n\nGet the Builder object for the request type RequestT.\n\n### splitException(Throwable throwable, Collection\\\u003c? extends BatchedRequestIssuer\\\u003cResponseT\\\u003e\\\u003e batch)\n\n public abstract void splitException(Throwable throwable, Collection\u003c? extends BatchedRequestIssuer\u003cResponseT\u003e\u003e batch)\n\nSplits the exception that resulted from a batched call into an individual setException call on\neach RequestIssuer.\n\n### splitResponse(ResponseT batchResponse, Collection\\\u003c? extends BatchedRequestIssuer\\\u003cResponseT\\\u003e\\\u003e batch)\n\n public abstract void splitResponse(ResponseT batchResponse, Collection\u003c? extends BatchedRequestIssuer\u003cResponseT\u003e\u003e batch)\n\nSplits the result from a batched call into an individual setResponse call on each\nRequestIssuer."]]