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Packages Package Description com.google.appengine.apiProvides facilities for server lifecycle management, threading and namespaces/multitenancy.
com.google.appengine.api.appidentityProvides a service to sign arbitrary byte arrays using an internally-generated, rotated private key.
com.google.appengine.api.backendsProvides access to long-running, addressable servers.
com.google.appengine.api.blobstoreProvides management and persistent storage of large, immutable byte arrays.
com.google.appengine.api.capabilitiesProvides status information about the services available via the Google App Engine APIs.
com.google.appengine.api.datastoreProvides persistent storage, also accessible via
JDOor
JPAinterfaces.
com.google.appengine.api.filesProvides a service for file storage and access.
com.google.appengine.api.imagesProvides facilities for the creation and manipulation of images.
com.google.appengine.api.logProvides access to request logs and application logs.
com.google.appengine.api.mailProvides a service to send email messages on behalf of administrators or authenticated users, also accessible via a
JavaMailinterface.
com.google.appengine.api.memcacheProvides fast but unreliable data storage, also accessible via a
JCacheinterface.
com.google.appengine.api.modulesUtility functions for working with modules.
com.google.appengine.api.oauthProvides a method for clients to access server resources on behalf of a resource owner, as well as a process for end-users to authorize third-party access to their server resources without sharing their credentials.
com.google.appengine.api.quotaProvides measurement of API and CPU usage during requests.
com.google.appengine.api.searchProvides a service for indexing documents and retrieving them using search queries.
com.google.appengine.api.search.checkers com.google.appengine.api.search.query com.google.appengine.api.taskqueueProvides a mechanism to perform work initiated by a user request, outside of that request.
com.google.appengine.api.urlfetchProvides a service to make HTTP/S requests of other servers on the internet.
com.google.appengine.api.usersProvides facilities to check if a user has authenticated, retrieve their email address, and check if they are an administrator for this application.
com.google.appengine.api.utilsProvides common utility classes.
com.google.apphosting.apiProvides access to the ApiProxy, which dispatches API calls to backend services.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-06-16 UTC.
[[["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 2025-06-16 UTC."],[[["The Google App Engine Java API provides a range of services for developers, including server lifecycle management, threading, and multitenancy."],["This API facilitates persistent data storage through its datastore package, which is accessible via JDO or JPA interfaces."],["It offers tools for managing large data, such as blob storage and a dedicated file storage system, along with image manipulation features."],["The API enables various functionalities like sending emails, making HTTP/S requests to other servers, and managing task queues for asynchronous processing."],["It includes tools for user authentication, logging, resource access control, and search capabilities, along with utility functions for common tasks."]]],[]]
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