Instances of this class are immutable and thread safe.
See Also: <xref uid="com.google.cloud.storage.BlobReadSession.<Projection>readAs(com.google.cloud.storage.ReadProjectionConfig<Projection>)" data-throw-if-not-resolved="false">BlobReadSession#readAs(ReadProjectionConfig), ReadProjectionConfigs#asFutureBytes()
[[["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."],[],[],null,["# Class ReadAsFutureBytes (2.55.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.55.0 (latest)](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.54.0](/java/docs/reference/google-cloud-storage/2.54.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.53.3](/java/docs/reference/google-cloud-storage/2.53.3/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.52.3](/java/docs/reference/google-cloud-storage/2.52.3/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.50.0](/java/docs/reference/google-cloud-storage/2.50.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.49.0](/java/docs/reference/google-cloud-storage/2.49.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.48.2](/java/docs/reference/google-cloud-storage/2.48.2/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.47.0](/java/docs/reference/google-cloud-storage/2.47.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.46.0](/java/docs/reference/google-cloud-storage/2.46.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.45.0](/java/docs/reference/google-cloud-storage/2.45.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.44.1](/java/docs/reference/google-cloud-storage/2.44.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.43.2](/java/docs/reference/google-cloud-storage/2.43.2/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.42.0](/java/docs/reference/google-cloud-storage/2.42.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.41.0](/java/docs/reference/google-cloud-storage/2.41.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.40.1](/java/docs/reference/google-cloud-storage/2.40.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.39.0](/java/docs/reference/google-cloud-storage/2.39.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.38.0](/java/docs/reference/google-cloud-storage/2.38.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.37.0](/java/docs/reference/google-cloud-storage/2.37.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.36.1](/java/docs/reference/google-cloud-storage/2.36.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.34.0](/java/docs/reference/google-cloud-storage/2.34.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.33.0](/java/docs/reference/google-cloud-storage/2.33.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.32.1](/java/docs/reference/google-cloud-storage/2.32.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.30.1](/java/docs/reference/google-cloud-storage/2.30.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.29.1](/java/docs/reference/google-cloud-storage/2.29.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.28.0](/java/docs/reference/google-cloud-storage/2.28.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.27.1](/java/docs/reference/google-cloud-storage/2.27.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.24.0](/java/docs/reference/google-cloud-storage/2.24.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.23.0](/java/docs/reference/google-cloud-storage/2.23.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.22.6](/java/docs/reference/google-cloud-storage/2.22.6/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.21.0](/java/docs/reference/google-cloud-storage/2.21.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.20.2](/java/docs/reference/google-cloud-storage/2.20.2/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.19.0](/java/docs/reference/google-cloud-storage/2.19.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.18.0](/java/docs/reference/google-cloud-storage/2.18.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.17.2](/java/docs/reference/google-cloud-storage/2.17.2/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.16.0](/java/docs/reference/google-cloud-storage/2.16.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.15.1](/java/docs/reference/google-cloud-storage/2.15.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.14.0](/java/docs/reference/google-cloud-storage/2.14.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.13.1](/java/docs/reference/google-cloud-storage/2.13.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.12.0](/java/docs/reference/google-cloud-storage/2.12.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.11.3](/java/docs/reference/google-cloud-storage/2.11.3/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.10.0](/java/docs/reference/google-cloud-storage/2.10.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.9.3](/java/docs/reference/google-cloud-storage/2.9.3/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.8.1](/java/docs/reference/google-cloud-storage/2.8.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.7.1](/java/docs/reference/google-cloud-storage/2.7.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.6.1](/java/docs/reference/google-cloud-storage/2.6.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.5.1](/java/docs/reference/google-cloud-storage/2.5.1/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.4.5](/java/docs/reference/google-cloud-storage/2.4.5/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.3.0](/java/docs/reference/google-cloud-storage/2.3.0/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.2.3](/java/docs/reference/google-cloud-storage/2.2.3/com.google.cloud.storage.ReadAsFutureBytes)\n- [2.1.10](/java/docs/reference/google-cloud-storage/2.1.10/com.google.cloud.storage.ReadAsFutureBytes) \n| **Beta**\n|\n|\n| This library is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1)\n| of the Terms of Service. Pre-GA libraries might have limited support,\n| and changes to pre-GA libraries might not be compatible with other pre-GA versions.\n| For more information, see the\n[launch stage descriptions](/products#product-launch-stages). \n\n public final class ReadAsFutureBytes extends ReadProjectionConfigs.BaseConfig\u003cApiFuture\u003cbyte[]\u003e,BaseObjectReadSessionStreamRead.AccumulatingRead\u003cbyte[]\u003e\u003e\n\nRead a range of `byte`s as an [ApiFuture](https://cloud.google.com/java/docs/reference/api-common/latest/com.google.api.core.ApiFuture.html)`\u003cbyte[]\u003e`\n\nInstances of this class are immutable and thread safe.\nSee Also: \\\u003cxref uid=\"com.google.cloud.storage.BlobReadSession.\\\u003cProjection\\\u003ereadAs(com.google.cloud.storage.ReadProjectionConfig\\\u003cProjection\\\u003e)\" data-throw-if-not-resolved=\"false\"\\\u003eBlobReadSession#readAs(ReadProjectionConfig), [ReadProjectionConfigs#asFutureBytes()](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadProjectionConfigs#com_google_cloud_storage_ReadProjectionConfigs_asFutureBytes__) \n\nInheritance\n-----------\n\n[Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \\\u003e [ReadProjectionConfig\\\u003cProjection\\\u003e](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadProjectionConfig) \\\u003e com.google.cloud.storage.ReadProjectionConfigs.BaseConfig \\\u003e ReadAsFutureBytes \n\nInherited Members\n-----------------\n\n[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) \n[Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) \n[Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) \n[Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) \n[Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) \n[Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) \n[Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) \n[Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--) \n[Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) \n[Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) \n[Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)\n\nMethods\n-------\n\n### equals(Object o)\n\n public boolean equals(Object o)\n\n**Overrides** \n[Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-)\n\n### getRange()\n\n public RangeSpec getRange()\n\n| **Beta**\n|\n| This feature is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1) of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.\n\nThe [RangeSpec](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.RangeSpec) to be used for any read using this instance.\n\n*Default:* [RangeSpec#all()](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.RangeSpec#com_google_cloud_storage_RangeSpec_all__)\n\n### hashCode()\n\n public int hashCode()\n\n**Overrides** \n[Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--)\n\n### toString()\n\n public String toString()\n\n**Overrides** \n[Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--)\n\n### withRangeSpec(RangeSpec range)\n\n public ReadAsFutureBytes withRangeSpec(RangeSpec range)\n\n| **Beta**\n|\n| This feature is covered by the [Pre-GA Offerings Terms](/terms/service-terms#1) of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.\n\nReturn an instance with the [RangeSpec](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.RangeSpec) set to the specified value.\n\n*Default:* [RangeSpec#all()](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.RangeSpec#com_google_cloud_storage_RangeSpec_all__)\nSee Also: [#getRange()](/java/docs/reference/google-cloud-storage/latest/com.google.cloud.storage.ReadAsFutureBytes#com_google_cloud_storage_ReadAsFutureBytes_getRange__)"]]
