org.geotools.data
Interfaces 
AttributeReader
AttributeWriter
DataAccess
DataAccessFactory
DataStore
DataStoreFactorySpi
DelegatingFeatureReader
DelegatingFeatureWriter
FeatureDiff
FeatureDiffReader
FeatureListener
FeatureLock
FeatureLocking
FeatureReader
FeatureSource
FeatureStore
FeatureWriter
FIDReader
FileDataStore
FileDataStoreFactorySpi
GmlObjectStore
LockingManager
Query
Repository
ResourceInfo
ServiceInfo
Transaction
Transaction.State
VersioningDataStore
VersioningFeatureLocking
VersioningFeatureSource
VersioningFeatureStore
Classes 
AbstractAttributeIO
AbstractDataStore
AbstractDataStoreFactory
AbstractDataStoreTest
AbstractFeatureLocking
AbstractFeatureSource
AbstractFeatureStore
AbstractFileDataStore
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
FeatureLockFactory
FeatureLocking.Response
FIDFeatureReader
FileDataStoreFinder
FilteringFeatureReader
FilteringFeatureWriter
InProcessLockingManager
JoiningAttributeReader
JoiningAttributeWriter
MaxFeatureReader
Parameter
PrjFileReader
QueryCapabilities
ReTypeFeatureReader
SampleDataAccess
SampleDataAccessData
SampleDataAccessFactory
SampleDataAccessFeatureCollection
SampleDataAccessFeatureIterator
SampleDataAccessFeatureSource
TransactionStateDiff
WorldFileReader
WorldFileWriter
Enums 
FeatureEvent.Type
Exceptions 
DataSourceException
FeatureLockException
SchemaNotFoundException