# Class Hierarchy
Date: 2012-02-24

## Hierarchy For All Packages

Package Hierarchies:
  com.google.appengine.api, com.google.appengine.api.appidentity, com.google.appengine.api.backends, com.google.appengine.api.blobstore, com.google.appengine.api.capabilities, com.google.appengine.api.channel, com.google.appengine.api.conversion, com.google.appengine.api.datastore, com.google.appengine.api.files, com.google.appengine.api.images, com.google.appengine.api.log, com.google.appengine.api.mail, com.google.appengine.api.memcache, com.google.appengine.api.oauth, com.google.appengine.api.prospectivesearch, com.google.appengine.api.quota, com.google.appengine.api.search, com.google.appengine.api.search.checkers, com.google.appengine.api.search.query, com.google.appengine.api.taskqueue, com.google.appengine.api.urlfetch, com.google.appengine.api.users, com.google.appengine.api.utils, com.google.appengine.api.xmpp, com.google.apphosting.api

## Class Hierarchy

- java.lang.Object
  - com.google.appengine.api.search.AddDocumentsResponse (implements java.lang.Iterable<T>, java.io.Serializable)
  - com.google.apphosting.api.ApiProxy
  - com.google.apphosting.api.ApiProxy.ApiConfig
  - com.google.apphosting.api.ApiProxy.LogRecord
  - com.google.appengine.api.files.AppEngineFile (implements java.io.Serializable)
  - com.google.appengine.api.appidentity.AppIdentityService.GetAccessTokenResult (implements java.io.Serializable)
  - com.google.appengine.api.appidentity.AppIdentityService.SigningResult
  - com.google.appengine.api.appidentity.AppIdentityServiceFactory
  - com.google.appengine.api.log.AppLogLine
  - com.google.appengine.api.conversion.Asset
  - com.google.appengine.api.backends.BackendServiceFactory
  - com.google.appengine.api.datastore.Blob (implements java.io.Serializable)
  - com.google.appengine.api.blobstore.BlobInfo (implements java.io.Serializable)
  - com.google.appengine.api.blobstore.BlobInfoFactory
  - com.google.appengine.api.blobstore.BlobKey (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.blobstore.BlobstoreServiceFactory
  - com.google.appengine.api.blobstore.ByteRange
  - com.google.appengine.api.capabilities.CapabilitiesServiceFactory
  - com.google.appengine.api.capabilities.Capability
  - com.google.appengine.api.capabilities.CapabilityState
  - com.google.appengine.api.datastore.Category (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.channel.ChannelMessage
  - com.google.appengine.api.channel.ChannelPresence
  - com.google.appengine.api.channel.ChannelServiceFactory
  - com.google.appengine.api.images.Composite
  - com.google.appengine.api.datastore.CompositeIndexManager
  - com.google.appengine.api.conversion.Conversion
  - com.google.appengine.api.conversion.ConversionOptions
  - com.google.appengine.api.conversion.ConversionOptions.Builder
  - com.google.appengine.api.conversion.ConversionResult
  - com.google.appengine.api.conversion.ConversionServiceFactory
  - com.google.appengine.api.files.Crc32c (implements java.util.zip.Checksum)
  - com.google.appengine.api.datastore.Cursor (implements java.io.Serializable)
  - com.google.appengine.api.datastore.DatastoreApiHelper
  - com.google.appengine.api.datastore.DatastoreAttributes
  - com.google.appengine.api.datastore.DatastoreServiceConfig
  - com.google.appengine.api.datastore.DatastoreServiceConfig.Builder
  - com.google.appengine.api.datastore.DatastoreServiceFactory
  - com.google.appengine.api.datastore.DataTypeTranslator
  - com.google.appengine.api.datastore.DataTypeTranslator.ComparableByteArray (implements java.lang.Comparable<T>)
  - com.google.appengine.api.datastore.DataTypeUtils
  - com.google.appengine.api.taskqueue.DeferredTaskContext
  - com.google.appengine.api.datastore.DeleteContext
  - com.google.appengine.api.conversion.Document
  - com.google.appengine.api.search.Document (implements java.io.Serializable)
  - com.google.appengine.api.search.Document.Builder
  - com.google.appengine.api.search.checkers.DocumentChecker
  - com.google.appengine.api.datastore.Email (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.datastore.Entity (implements java.lang.Cloneable, java.io.Serializable)
  - com.google.appengine.api.datastore.EntityProtoComparators
  - com.google.appengine.api.datastore.EntityProtoComparators.EntityProtoComparator (implements java.util.Comparator<T>)
  - com.google.appengine.api.datastore.EntityTranslator
  - com.google.appengine.api.xmpp.Error
  - com.google.appengine.api.xmpp.ErrorBuilder
  - com.google.appengine.api.memcache.ErrorHandlers
  - com.google.appengine.api.memcache.Expiration
  - com.google.appengine.api.search.ExpressionTreeBuilder
  - com.google.appengine.api.datastore.FetchOptions
  - com.google.appengine.api.urlfetch.FetchOptions (implements java.io.Serializable)
  - com.google.appengine.api.datastore.FetchOptions.Builder
  - com.google.appengine.api.urlfetch.FetchOptions.Builder
  - com.google.appengine.api.search.Field (implements java.io.Serializable)
  - com.google.appengine.api.search.Field.Builder
  - com.google.appengine.api.search.checkers.FieldChecker
  - com.google.appengine.api.search.FieldExpression
  - com.google.appengine.api.search.FieldExpression.Builder
  - com.google.appengine.api.files.FileServiceFactory
  - com.google.appengine.api.utils.FutureWrapper<K,V> (implements java.util.concurrent.Future<V>)
  - com.google.appengine.api.datastore.GeoPt (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.files.GSFileOptions
  - com.google.appengine.api.files.GSFileOptions.GSFileOptionsBuilder
  - com.google.appengine.api.urlfetch.HTTPHeader (implements java.io.Serializable)
  - com.google.appengine.api.urlfetch.HTTPRequest (implements java.io.Serializable)
  - com.google.appengine.api.utils.HttpRequestParser
  - com.google.appengine.api.urlfetch.HTTPResponse (implements java.io.Serializable)
  - com.google.appengine.api.images.ImagesServiceFactory
  - com.google.appengine.api.datastore.IMHandle (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.datastore.Index (implements java.io.Serializable)
  - com.google.appengine.api.datastore.Index.Property (implements java.io.Serializable)
  - com.google.appengine.api.search.checkers.IndexChecker
  - com.google.appengine.api.search.IndexManagerFactory
  - com.google.appengine.api.search.IndexSpec
  - com.google.appengine.api.search.IndexSpec.Builder
  - com.google.appengine.api.images.InputSettings
  - java.io.InputStream (implements java.io.Closeable)
    - com.google.appengine.api.blobstore.BlobstoreInputStream
  - com.google.appengine.api.xmpp.JID
  - com.google.appengine.api.datastore.Key (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.datastore.KeyFactory
  - com.google.appengine.api.datastore.KeyFactory.Builder
  - com.google.appengine.api.datastore.KeyRange (implements java.lang.Iterable<T>, java.io.Serializable)
  - com.google.appengine.api.LifecycleManager
  - com.google.appengine.api.datastore.Link (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.search.ListDocumentsRequest
  - com.google.appengine.api.search.ListDocumentsRequest.Builder
  - com.google.appengine.api.search.checkers.ListDocumentsRequestChecker
  - com.google.appengine.api.search.ListDocumentsResponse (implements java.lang.Iterable<T>, java.io.Serializable)
  - com.google.appengine.api.search.ListIndexesRequest
  - com.google.appengine.api.search.ListIndexesRequest.Builder
  - com.google.appengine.api.search.checkers.ListIndexesRequestChecker
  - com.google.appengine.api.search.ListIndexesResponse (implements java.lang.Iterable<T>, java.io.Serializable)
  - com.google.appengine.api.memcache.LogAndContinueErrorHandler (implements com.google.appengine.api.memcache.ErrorHandler)
  - com.google.appengine.api.log.LogQuery (implements java.lang.Cloneable)
  - com.google.appengine.api.log.LogQuery.Builder
  - com.google.appengine.api.log.LogQueryResult (implements java.lang.Iterable<T>)
  - com.google.appengine.api.log.LogServiceFactory
  - com.google.appengine.api.mail.MailService.Attachment
  - com.google.appengine.api.mail.MailService.Header
  - com.google.appengine.api.mail.MailService.Message
  - com.google.appengine.api.mail.MailServiceFactory
  - com.google.appengine.api.memcache.MemcacheSerialization
  - com.google.appengine.api.memcache.MemcacheSerialization.ValueAndFlags
  - com.google.appengine.api.memcache.MemcacheService.CasValues
  - com.google.appengine.api.memcache.MemcacheServiceFactory
  - com.google.appengine.api.xmpp.Message
  - com.google.appengine.api.xmpp.MessageBuilder
  - com.google.appengine.api.NamespaceManager
  - com.google.appengine.api.oauth.OAuthServiceFactory
  - com.google.appengine.api.search.OperationResult (implements java.io.Serializable)
  - com.google.appengine.api.images.OutputSettings
  - com.google.appengine.api.search.ParserFactory
  - com.google.appengine.api.search.query.ParserUtils
  - com.google.appengine.api.datastore.PhoneNumber (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.datastore.PostalAddress (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.search.checkers.Preconditions
  - com.google.appengine.api.xmpp.Presence
  - com.google.appengine.api.xmpp.PresenceBuilder
  - com.google.appengine.api.prospectivesearch.ProspectiveSearchServiceFactory
  - com.google.appengine.api.appidentity.PublicCertificate (implements java.io.Serializable)
  - com.google.appengine.api.datastore.PutContext
  - com.google.appengine.api.datastore.Query (implements java.io.Serializable)
  - com.google.appengine.api.datastore.Query.FilterPredicate (implements java.io.Serializable)
  - com.google.appengine.api.datastore.Query.SortPredicate (implements java.io.Serializable)
  - com.google.appengine.api.search.query.QueryParserFactory
  - com.google.appengine.api.search.query.QueryTreeBuilder
  - com.google.appengine.api.search.query.QueryTreeWalker<T>
  - com.google.appengine.api.taskqueue.QueueConstants
  - com.google.appengine.api.taskqueue.QueueFactory
  - com.google.appengine.api.quota.QuotaServiceFactory
  - com.google.appengine.api.datastore.Rating (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.datastore.ReadPolicy
  - com.google.appengine.api.log.RequestLogs
  - com.google.appengine.api.taskqueue.RetryOptions (implements java.io.Serializable)
  - com.google.appengine.api.taskqueue.RetryOptions.Builder
  - com.google.appengine.api.search.Schema
  - com.google.appengine.api.search.SearchRequest
  - com.google.appengine.api.search.SearchRequest.Builder
  - com.google.appengine.api.search.checkers.SearchRequestChecker
  - com.google.appengine.api.search.SearchResponse (implements java.lang.Iterable<T>, java.io.Serializable)
  - com.google.appengine.api.search.SearchResult
  - com.google.appengine.api.search.SearchServiceFactory
  - com.google.appengine.api.xmpp.SendResponse
  - com.google.appengine.api.datastore.ShortBlob (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.search.SortSpec
  - com.google.appengine.api.search.SortSpec.Builder
  - com.google.appengine.api.search.checkers.SortSpecChecker
  - com.google.appengine.api.memcache.StrictErrorHandler (implements com.google.appengine.api.memcache.ErrorHandler)
  - com.google.appengine.api.prospectivesearch.Subscription
  - com.google.appengine.api.xmpp.Subscription
  - com.google.appengine.api.xmpp.SubscriptionBuilder
  - com.google.appengine.api.utils.SystemProperty
    - com.google.appengine.api.utils.SystemProperty.Environment
  - com.google.appengine.api.taskqueue.TaskHandle (implements java.io.Serializable)
  - com.google.appengine.api.taskqueue.TaskOptions (implements java.io.Serializable)
  - com.google.appengine.api.taskqueue.TaskOptions.Builder
  - com.google.appengine.api.datastore.Text (implements java.io.Serializable)
  - com.google.appengine.api.ThreadManager
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - com.google.appengine.api.datastore.EntityNotFoundException
      - java.io.IOException
        - com.google.appengine.api.blobstore.BlobstoreInputStream.BlobstoreIOException
        - com.google.appengine.api.files.FinalizationException
        - com.google.appengine.api.files.KeyOrderingException
        - com.google.appengine.api.files.LockException
      - com.google.appengine.api.oauth.OAuthRequestException
        - com.google.appengine.api.oauth.InvalidOAuthParametersException
        - com.google.appengine.api.oauth.InvalidOAuthTokenException
      - java.lang.RuntimeException
        - com.google.apphosting.api.ApiProxy.ApiProxyException
          - com.google.apphosting.api.ApiProxy.ApiDeadlineExceededException
          - com.google.apphosting.api.ApiProxy.ApplicationException
          - com.google.apphosting.api.ApiProxy.ArgumentException
          - com.google.apphosting.api.ApiProxy.CallNotFoundException
          - com.google.apphosting.api.ApiProxy.CancelledException
          - com.google.apphosting.api.ApiProxy.CapabilityDisabledException
          - com.google.apphosting.api.ApiProxy.FeatureNotEnabledException
          - com.google.apphosting.api.ApiProxy.OverQuotaException
          - com.google.apphosting.api.ApiProxy.RequestTooLargeException
          - com.google.apphosting.api.ApiProxy.ResponseTooLargeException
          - com.google.apphosting.api.ApiProxy.RPCFailedException
          - com.google.apphosting.api.ApiProxy.UnknownException
        - com.google.appengine.api.appidentity.AppIdentityServiceFailureException
        - com.google.appengine.api.blobstore.BlobstoreFailureException
        - com.google.appengine.api.channel.ChannelFailureException
        - com.google.appengine.api.datastore.CommittedButStillApplyingException
        - com.google.appengine.api.conversion.ConversionServiceException
        - com.google.appengine.api.datastore.DatastoreFailureException
        - com.google.appengine.api.datastore.DatastoreNeedIndexException
        - com.google.appengine.api.datastore.DatastoreTimeoutException
        - com.google.apphosting.api.DeadlineExceededException
        - com.google.appengine.api.taskqueue.DeferredTaskCreationException
        - com.google.appengine.api.images.ImagesServiceFailureException
        - com.google.appengine.api.search.InternalFailureException
        - com.google.appengine.api.taskqueue.InternalFailureException
        - com.google.appengine.api.taskqueue.InvalidQueueModeException
        - com.google.appengine.api.log.InvalidRequestException
        - com.google.appengine.api.memcache.InvalidValueException
        - com.google.appengine.api.log.LogServiceException
        - com.google.appengine.api.memcache.MemcacheServiceException
        - com.google.appengine.api.oauth.OAuthServiceFailureException
        - com.google.appengine.api.datastore.PreparedQuery.TooManyResultsException
        - com.google.appengine.api.prospectivesearch.QuerySyntaxException
        - com.google.appengine.api.taskqueue.QueueFailureException
        - com.google.appengine.api.taskqueue.QueueNameMismatchException
        - com.google.appengine.api.blobstore.RangeFormatException
          - com.google.appengine.api.blobstore.UnsupportedRangeFormatException
        - com.google.appengine.api.urlfetch.ResponseTooLargeException
        - com.google.appengine.api.search.SearchBaseException
          - com.google.appengine.api.search.AddDocumentsException
          - com.google.appengine.api.search.ListDocumentsException
          - com.google.appengine.api.search.ListIndexesException
          - com.google.appengine.api.search.RemoveDocumentsException
          - com.google.appengine.api.search.SearchException
          - com.google.appengine.api.search.SearchQueryException
        - com.google.appengine.api.taskqueue.TaskAlreadyExistsException
        - com.google.appengine.api.taskqueue.TransactionalTaskException
        - com.google.appengine.api.taskqueue.TransientFailureException
        - com.google.appengine.api.taskqueue.UnsupportedTranslationException
        - com.google.appengine.api.users.UserServiceFailureException
        - com.google.appengine.api.xmpp.XMPPFailureException
  - com.google.appengine.api.datastore.TransactionOptions
  - com.google.appengine.api.datastore.TransactionOptions.Builder
  - com.google.appengine.api.images.Transform (implements java.io.Serializable)
    - com.google.appengine.api.images.CompositeTransform
  - com.google.appengine.api.blobstore.UploadOptions
  - com.google.appengine.api.blobstore.UploadOptions.Builder
  - com.google.appengine.api.urlfetch.URLFetchServiceFactory
  - com.google.appengine.api.users.User (implements java.lang.Comparable<T>, java.io.Serializable)
  - com.google.appengine.api.users.UserServiceFactory
  - com.google.appengine.api.search.Util
  - com.google.appengine.api.xmpp.XMPPServiceFactory

## Interface Hierarchy

- com.google.apphosting.api.ApiProxy.Delegate<E>
- com.google.apphosting.api.ApiProxy.Environment
- com.google.appengine.api.appidentity.AppIdentityService
- com.google.appengine.api.backends.BackendService
- com.google.appengine.api.datastore.BaseDatastoreService
  - com.google.appengine.api.datastore.AsyncDatastoreService
  - com.google.appengine.api.datastore.DatastoreService
- com.google.appengine.api.memcache.BaseMemcacheService
  - com.google.appengine.api.memcache.AsyncMemcacheService
  - com.google.appengine.api.memcache.MemcacheService
- com.google.appengine.api.blobstore.BlobstoreService
- com.google.appengine.api.datastore.CallbackContext<T>
- com.google.appengine.api.capabilities.CapabilitiesService
- com.google.appengine.api.channel.ChannelService
- java.io.Closeable
  - java.nio.channels.Channel
    - java.nio.channels.ReadableByteChannel
      - com.google.appengine.api.files.FileReadChannel
    - java.nio.channels.WritableByteChannel
      - com.google.appengine.api.files.FileWriteChannel
      - com.google.appengine.api.files.RecordWriteChannel
- com.google.appengine.api.conversion.ConversionService
- com.google.appengine.api.datastore.DatastoreConfig
- com.google.appengine.api.memcache.ErrorHandler
  - com.google.appengine.api.memcache.ConsistentErrorHandler
- com.google.appengine.api.files.FileService
- java.util.concurrent.Future<V>
  - com.google.apphosting.api.ApiProxy.ApiResultFuture<T>
- com.google.appengine.api.images.ImagesService
- com.google.appengine.api.search.Index
- com.google.appengine.api.search.IndexManager
- java.lang.Iterable<T>
  - java.util.Collection<E>
    - java.util.List<E>
      - com.google.appengine.api.datastore.QueryResultList<T>
  - com.google.appengine.api.datastore.QueryResultIterable<T>
- java.util.Iterator<E>
  - com.google.appengine.api.datastore.QueryResultIterator<T>
- com.google.appengine.api.LifecycleManager.ShutdownHook
- com.google.appengine.api.log.LogService
- com.google.appengine.api.mail.MailService
- com.google.appengine.api.memcache.MemcacheService.IdentifiableValue
- com.google.appengine.api.oauth.OAuthService
- com.google.appengine.api.datastore.PreparedQuery
- com.google.appengine.api.prospectivesearch.ProspectiveSearchService
- com.google.appengine.api.search.query.QueryTreeVisitor<T>
- com.google.appengine.api.taskqueue.Queue
- com.google.appengine.api.quota.QuotaService
- com.google.appengine.api.files.RecordReadChannel
- java.lang.Runnable
  - com.google.appengine.api.taskqueue.DeferredTask (also extends java.io.Serializable)
- com.google.appengine.api.search.SearchService
- java.io.Serializable
  - com.google.appengine.api.taskqueue.DeferredTask (also extends java.lang.Runnable)
  - com.google.appengine.api.images.Image
- com.google.appengine.api.memcache.Stats
- com.google.appengine.api.datastore.Transaction
- com.google.appengine.api.urlfetch.URLFetchService
- com.google.appengine.api.users.UserService
- com.google.appengine.api.xmpp.XMPPService

## Annotation Type Hierarchy

- com.google.appengine.api.datastore.PrePut (implements java.lang.annotation.Annotation)
- com.google.appengine.api.datastore.PreDelete (implements java.lang.annotation.Annotation)
- com.google.appengine.api.datastore.PostPut (implements java.lang.annotation.Annotation)
- com.google.appengine.api.datastore.PostDelete (implements java.lang.annotation.Annotation)

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - com.google.apphosting.api.ApiProxy.LogRecord.Level
    - com.google.appengine.api.capabilities.CapabilityStatus
    - com.google.appengine.api.conversion.ConversionErrorCode
    - com.google.appengine.api.datastore.ReadPolicy.Consistency
    - com.google.appengine.api.datastore.Query.SortDirection
    - com.google.appengine.api.datastore.Query.FilterOperator
    - com.google.appengine.api.datastore.Index.IndexState
    - com.google.appengine.api.datastore.ImplicitTransactionManagementPolicy
    - com.google.appengine.api.datastore.IMHandle.Scheme
    - com.google.appengine.api.datastore.DatastoreService.KeyRangeState
    - com.google.appengine.api.datastore.DatastoreAttributes.DatastoreType
    - com.google.appengine.api.files.AppEngineFile.FileSystem
    - com.google.appengine.api.search.StatusCode
    - com.google.appengine.api.search.SortSpec.SortDirection
    - com.google.appengine.api.search.SortSpec.SortType
    - com.google.appengine.api.search.SearchRequest.CursorType
    - com.google.appengine.api.search.Field.FieldType
    - com.google.appengine.api.search.Consistency
    - com.google.appengine.api.utils.SystemProperty.Environment.Value
    - com.google.appengine.api.taskqueue.TaskOptions.Method
    - com.google.appengine.api.urlfetch.HTTPMethod
    - com.google.appengine.api.prospectivesearch.Subscription.State
    - com.google.appengine.api.prospectivesearch.FieldType
    - com.google.appengine.api.memcache.MemcacheService.SetPolicy
    - com.google.appengine.api.memcache.MemcacheSerialization.Flag
    - com.google.appengine.api.quota.QuotaService.DataType
    - com.google.appengine.api.images.InputSettings.OrientationCorrection
    - com.google.appengine.api.images.ImagesService.OutputEncoding
    - com.google.appengine.api.images.Image.Format
    - com.google.appengine.api.images.Composite.Anchor
    - com.google.appengine.api.xmpp.SubscriptionType
    - com.google.appengine.api.xmpp.SendResponse.Status
    - com.google.appengine.api.xmpp.PresenceType
    - com.google.appengine.api.xmpp.PresenceShow
    - com.google.appengine.api.xmpp.MessageType
    - com.google.appengine.api.log.LogService.LogLevel