Configures the client to access Cloud Datastore on a local host (typically a Cloud Datastore
Emulator instance). Call this method also configures the client not to attach credentials to
requests.
[[["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 2025-09-04 UTC."],[],[],null,["# Class DatastoreOptions.Builder (2.31.2)\n\nVersion latestkeyboard_arrow_down\n\n- [2.31.2 (latest)](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.31.1](/java/docs/reference/google-cloud-datastore/2.31.1/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.30.0](/java/docs/reference/google-cloud-datastore/2.30.0/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.29.1](/java/docs/reference/google-cloud-datastore/2.29.1/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.28.2](/java/docs/reference/google-cloud-datastore/2.28.2/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.27.1](/java/docs/reference/google-cloud-datastore/2.27.1/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.26.4](/java/docs/reference/google-cloud-datastore/2.26.4/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.25.2](/java/docs/reference/google-cloud-datastore/2.25.2/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.24.3](/java/docs/reference/google-cloud-datastore/2.24.3/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.23.0](/java/docs/reference/google-cloud-datastore/2.23.0/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.22.0](/java/docs/reference/google-cloud-datastore/2.22.0/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.21.3](/java/docs/reference/google-cloud-datastore/2.21.3/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.20.2](/java/docs/reference/google-cloud-datastore/2.20.2/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.19.2](/java/docs/reference/google-cloud-datastore/2.19.2/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.18.5](/java/docs/reference/google-cloud-datastore/2.18.5/com.google.datastore.utils.DatastoreOptions.Builder)\n- [2.17.6](/java/docs/reference/google-cloud-datastore/2.17.6/com.google.datastore.utils.DatastoreOptions.Builder) \n\n public static class DatastoreOptions.Builder\n\nBuilder for [DatastoreOptions](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions). \n\nInheritance\n-----------\n\n[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \\\u003e DatastoreOptions.Builder \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\nConstructors\n------------\n\n### Builder()\n\n public Builder()\n\n### Builder(DatastoreOptions options)\n\n public Builder(DatastoreOptions options)\n\nMethods\n-------\n\n### build()\n\n public DatastoreOptions build()\n\n### credential(Credential credential)\n\n public DatastoreOptions.Builder credential(Credential credential)\n\nSets the Google APIs Credential used to access Cloud Datastore.\n\n### host(String host)\n\n public DatastoreOptions.Builder host(String host)\n\nSets the host used to access Cloud Datastore. To connect to the Cloud Datastore Emulator, use\n[#localHost](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_localHost_) instead.\n\n### initializer(HttpRequestInitializer initializer)\n\n public DatastoreOptions.Builder initializer(HttpRequestInitializer initializer)\n\nSets the (optional) initializer to run on HTTP requests to Cloud Datastore.\n\n### localHost(String localHost)\n\n public DatastoreOptions.Builder localHost(String localHost)\n\nConfigures the client to access Cloud Datastore on a local host (typically a Cloud Datastore\nEmulator instance). Call this method also configures the client not to attach credentials to\nrequests.\n\n### projectEndpoint(String projectEndpoint) (deprecated)\n\n public DatastoreOptions.Builder projectEndpoint(String projectEndpoint)\n\n**Deprecated.** *Use [#projectId](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_projectId_) and/or [#host](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_host_)/[#localHost](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_localHost_) instead.*\n\nSets the project endpoint used to access Cloud Datastore. Prefer using [#projectId](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_projectId_)\nand/or [#host](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_host_)/[#localHost](/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.utils.DatastoreOptions.Builder#com_google_datastore_utils_DatastoreOptions_Builder_localHost_) when possible.\n\n### projectId(String projectId)\n\n public DatastoreOptions.Builder projectId(String projectId)\n\nSets the project ID used to access Cloud Datastore.\n\n### transport(HttpTransport transport)\n\n public DatastoreOptions.Builder transport(HttpTransport transport)\n\nSets the transport used to access Cloud Datastore."]]
