Package com.streambase.sb.operator

Provides classes and interfaces to add custom operators to StreamBase applications.

See: Description

Interface Summary

Interface	Description
IResourceReader
Operator.ConfigurationAccessor	Provides access to configuration information for use by operators and adapters, available from the server's configuration file.
Operator.RuntimeEnvironment	This interface is used to gain access to StreamBase Server information and facilities.
Operator.SharedObject	A SharedObject is an object that can be shared between Operators within a Container.
Operator.SharedObjectManager	The manager for SharedObjects within a container.
Parameterizable	Interface for the objects that hold the user-configurable parameters for Java Operators when they appear in StreamBase Studio.
PreparedQuery	A query that has been prepared against a table.
RowConsumer	Interface for consumers of table rows.
TableAccessor	A handle for accessing a table.

Class Summary

Class	Description
AggregateWindow	represent a Heap-based aggregate window (For backward compat, we can't call this HeapAggregateWindow, hence have to settle with AggregateWindow)
BaseAggregateWindow	Abstract base class for all custom java aggregate functions.
Operator	Abstract base class for User code that is used as a Java Operator or an embedded Adapter in a StreamBase application.
Operator.ArtifactProperties	For operators supporting Artifacts, this class is used to communicate properties about them during development in Studio, and is reported to the operator immediately prior to Operator.typecheck() along with all other setters.
Operator.OperatorStates	The set of runtime states that an Operator can be in.
Operator.SuspendBehaviorStates	Suspend behavior defines how an Operator handles tuples when it is suspended; meaning when it is in the SUSPENDED state.
OperatorInternal
PortCounts	A record type to describe the number of input and output ports an operator has.
TransactionalMemoryAggregateWindow	represents a DTM-based aggregate window

Enum Summary

Enum	Description
Operator.IconKind	An enumeration for the different kinds of icons that StreamBase Studio may request when displaying Operators and Adapters.
Operator.LogLevel	Included values are, in decreasing order of chattiness: Operator.LogLevel.ALL, Operator.LogLevel.TRACE, Operator.LogLevel.DEBUG, Operator.LogLevel.INFO, Operator.LogLevel.WARN, Operator.LogLevel.ERROR, Operator.LogLevel.OFF.
Operator.SharedObject.State	The state of the SharedObject
StorageMethod	Data storage method
TransactionIsolationLevel	This describes the server's transaction isolation level (only meaningful for com.streambase.sb.operator.StorageMethod.TRANSACTIONAL_MEMORY)

Exception Summary

Exception	Description
AlreadyRegisteredException
DbConnectTypecheckException
ParameterInterpretationException
ResourceNotFoundException	Thrown when an operator tries to get a resource by name, but no such resource exists.
SqlTypecheckException
TypecheckException	May be thrown when an error occurs during an Operator's typecheck() method.

Package com.streambase.sb.operator Description

Provides classes and interfaces to add custom operators to StreamBase applications.