org.geotools.data
Interfaces 
AttributeReader
AttributeWriter
DataAccess
DataAccessFactory
DataStore
DataStoreFactorySpi
DelegatingFeatureReader
DelegatingFeatureWriter
FeatureListener
FeatureLocking
FeatureReader
FeatureSource
FeatureStore
FeatureWriter
FIDReader
FileDataStore
FileDataStoreFactorySpi
GmlObjectStore
LockingManager
Repository
ResourceInfo
ServiceInfo
Transaction
Transaction.State
Classes 
AbstractAttributeIO
AbstractDataStore
AbstractDataStoreFactory
AbstractDataStoreTest
AbstractFeatureLocking
AbstractFeatureSource
AbstractFeatureStore
AbstractFileDataStore
Base64
Base64.InputStream
Base64.OutputStream
BatchFeatureEvent
CachingFeatureSource
CollectionFeatureReader
DataAccessFactory.Param
DataAccessFinder
DataStoreFinder
DataTestCase
DataUtilities
DefaultFeatureLock
DefaultFeatureLockFactory
DefaultFeatureReader
DefaultFeatureResults
DefaultFIDReader
DefaultQuery
DefaultRepository
DefaultResourceInfo
DefaultServiceInfo
DefaultTransaction
Diff
DiffFeatureReader
DiffFeatureWriter
EmptyFeatureReader
EmptyFeatureWriter
FeatureEvent
FeatureListenerManager
FeatureLock
FeatureLockFactory
FeatureLocking.Response
FIDFeatureReader
FileDataStoreFinder
FilteringFeatureReader
FilteringFeatureWriter
InProcessLockingManager
Join
JoiningAttributeReader
JoiningAttributeWriter
MapInfoFileReader
MaxFeatureReader
Parameter
PrjFileReader
Query
QueryCapabilities
ReTypeFeatureReader
SampleDataAccess
SampleDataAccessData
SampleDataAccessFactory
SampleDataAccessFeatureCollection
SampleDataAccessFeatureIterator
SampleDataAccessFeatureSource
TransactionStateDiff
WorldFileReader
WorldFileWriter
Enums 
FeatureEvent.Type
Join.Type
Exceptions 
DataSourceException
FeatureLockException
SchemaNotFoundException