org.pentaho.di.core
Interfaces 
AddUndoPositionInterface
CheckResultInterface
CheckResultSourceInterface
DescriptionInterface
EngineMetaInterface
KettleAttributeInterface
ProgressMonitorListener
RowSet
RowSetListener
Classes 
BlockingBatchingRowSet
BlockingBatchingRowSetTest
BlockingListeningRowSet
BlockingRowSet
CheckResult
Condition
Const
ConstDB
ConstTest
Counter
Counters
CountersTest
CounterTest
DBCache
DBCacheEntry
HTTPProtocol
JndiUtil
KettleAttribute
KettleEnvironment
KettleVariablesList
LastUsedFile
NotePadMeta
ObjectUsageCount
PDIClassLoader
ProgressMonitorAdapter
Props
QueueRowSet
Result
ResultFile
RowMetaAndData
RowSetTest
SimpleTokenizer
SingleRowRowSet
SourceToTargetMapping
SQLStatement
TimedRow
WriterOutputStream
Enums 
Const.ReleaseType
ObjectLocationSpecificationMethod