Package org.apache.derby.impl.sql.execute

Class Summary

Class	Description
AggregatorInfo	This is a simple class used to store the run time information needed to invoke an aggregator.
AggregatorInfoList	Vector of AggergatorInfo objects.
AlterConstraintConstantAction	This class describes actions that are ALWAYS performed for a alter constraint at Execution time.
AnyResultSet	Takes a quantified predicate subquery's result set.
AutoincrementCounter	AutoincrementCounter is a not so general counter for the specific purposes of autoincrement columns.
AvgAggregator	Aggregator for AVG().
BaseActivation	BaseActivation provides the fundamental support we expect all activations to have.
BaseExpressionActivation	BaseExpressionActivation Support needed by Expression evaluators (Filters) and by ResultSet materializers (Activations)
BasicSortObserver	This is the most basic sort observer.
ColumnInfo	This is the Column descriptor that is passed from Compilation to Execution for CREATE TABLE statements.
ConstantActionActivation	A pre-compiled activation that supports a single ResultSet with a single constant action.
ConstraintConstantAction	This class describes actions that are ALWAYS performed for a constraint creation at Execution time.
ConstraintInfo	This is a simple class used to store the run time information about a constraint.
CountAggregator	Aggregator for COUNT()/COUNT(*).
CreateConstraintConstantAction	This class describes actions that are ALWAYS performed for a constraint creation at Execution time.
CurrentDatetime	CurrentDatetime provides execution support for ensuring that the current datetime is evaluated only once for a statement.
CursorActivation	In the family of activation support classes, this one provides an activation with a cursor name.
DeferredConstraintsMemory	This class provides support for deferrable constraints.
DeferredConstraintsMemory.CheckInfo	Info needed for check constraints
DeferredConstraintsMemory.ValidationInfo	Class hierarchy carrying the information we need to validate some deferred constraint.
DeleteConstantAction	This class describes compiled constants that are passed into DeleteResultSets.
DMLWriteResultSet	For INSERT/UPDATE/DELETE impls.
DropConstraintConstantAction	This class describes actions that are ALWAYS performed for a drop constraint at Execution time.
DropTriggerConstantAction	This class describes actions that are ALWAYS performed for a DROP TRIGGER Statement at Execution time.
FKInfo	This is a simple class used to store the run time information about a foreign key.
ForeignKeyRIChecker	A Referential Integrity checker for a foreign key constraint.
GenericConstantActionFactory	Factory for creating ConstantActions.
GenericExecutionFactory	This Factory is for creating the execution items needed by a connection for a given database.
GenericPrivilegeInfo
GenericQualifier	This is the implementation for Qualifier.
GenericResultSetFactory	ResultSetFactory provides a wrapper around all of the result sets used in this execution implementation.
GenericRIChecker	Generic implementation of a Referential Integrity checker.
GenericScanQualifier	This is the implementation for ScanQualifier.
HashScanResultSet	Takes a conglomerate and a table filter builds a hash table on the specified column of the conglomerate on the 1st open.
IndexColumnOrder	Basic implementation of ColumnOrdering.
IndexConstantAction	This class is the superclass for the classes that describe actions that are ALWAYS performed for a CREATE/DROP INDEX Statement at Execution time.
InsertConstantAction	This class describes compiled constants that are passed into InsertResultSets.
JarUtil
MatchingClauseConstantAction	Describes the execution machinery needed to evaluate a WHEN [ NOT ] MATCHING clause of a MERGE statement.
MaxMinAggregator	Aggregator for MAX()/MIN().
MergeConstantAction	Describes the execution machinery needed to evaluate a MERGE statement.
OnceResultSet	Takes an expression subquery's result set and verifies that only a single scalar value is being returned.
PrivilegeInfo
RealResultSetStatisticsFactory	ResultSetStatisticsFactory provides a wrapper around all of objects associated with run time statistics.
ReferencedKeyRIChecker	A Referential Integrity checker for a change to a referenced key (primary or unique).
RIBulkChecker	Do a merge run comparing all the foreign keys from the foreign key conglomerate against the referenced keys from the primary key conglomerate.
RISetChecker	Checks a set or referential integrity constraints.
RoutinePrivilegeInfo
RowUtil	Utility class manipulating rows.
ScrollInsensitiveResultSet	Provide insensitive scrolling functionality for the underlying result set.
SumAggregator	Aggregator for SUM().
TablePrivilegeInfo
TriggerEvent	This is a simple class that we use to track trigger events.
TriggerEventActivator	Responsible for firing a trigger or set of triggers based on an event.
TriggerEvents	Static final trigger events.
TriggerInfo	This is a simple class used to store the run time information about a foreign key.
UniqueWithDuplicateNullsIndexSortObserver	UniqueWithDuplicateNullsIndexSortObserver is implementation of BasicSortObserver for eliminating non null duplicates from the backing index of unique constraint.
UpdatableVTIConstantAction	This class describes compiled constants that are passed into Updatable VTIResultSets.
UpdateConstantAction	This class describes compiled constants that are passed into UpdateResultSets.
UserDefinedAggregator	Aggregator for user-defined aggregates.