Uses of Package
org.apache.flink.streaming.api.operators

Packages that use org.apache.flink.streaming.api.operators

Package	Description
org.apache.flink.streaming.api
org.apache.flink.streaming.api.datastream
org.apache.flink.streaming.api.functions.query
org.apache.flink.streaming.api.functions.source
org.apache.flink.streaming.api.graph
org.apache.flink.streaming.api.operators
org.apache.flink.streaming.api.operators.async
org.apache.flink.streaming.api.operators.async.queue
org.apache.flink.streaming.api.operators.co
org.apache.flink.streaming.api.operators.collect
org.apache.flink.streaming.api.operators.sort
org.apache.flink.streaming.api.operators.sorted.state
org.apache.flink.streaming.api.transformations
org.apache.flink.streaming.runtime.io
org.apache.flink.streaming.runtime.io.checkpointing
org.apache.flink.streaming.runtime.operators	This package contains the operators that perform the stream transformations.
org.apache.flink.streaming.runtime.operators.sink
org.apache.flink.streaming.runtime.operators.windowing	This package contains the operators that implement the various window operations on data streams.
org.apache.flink.streaming.runtime.tasks	This package contains classes that realize streaming tasks.
org.apache.flink.streaming.runtime.tasks.mailbox
org.apache.flink.streaming.runtime.translators

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api

Class and Description
InternalTimerService Interface for working with time and timers.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.datastream

Class and Description
OneInputStreamOperator Interface for stream operators with one input.
OneInputStreamOperatorFactory A factory to create OneInputStreamOperator.
StreamOperatorFactory A factory to create StreamOperator.
StreamSink A StreamOperator for executing SinkFunctions.
StreamSource StreamOperator for streaming sources.
TwoInputStreamOperator Interface for stream operators with two inputs.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.functions.query

Class and Description
AbstractStreamOperator Base class for all stream operators.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
OneInputStreamOperator Interface for stream operators with one input.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.functions.source

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractStreamOperatorFactory Base class for all stream operator factories.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).
OneInputStreamOperator Interface for stream operators with one input.
OneInputStreamOperatorFactory A factory to create OneInputStreamOperator.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.
StreamOperatorParameters Helper class to construct AbstractStreamOperatorV2.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
YieldingOperatorFactory An operator that needs access to the MailboxExecutor to yield to downstream operators needs to be created through a factory implementing this interface.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.graph

Class and Description
InternalTimeServiceManager.Provider A provider pattern for creating an instance of a InternalTimeServiceManager.
SourceOperatorFactory The Factory class for SourceOperator.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractStreamOperatorFactory Base class for all stream operator factories.
AbstractStreamOperatorV2 New base class for all stream operators, intended to eventually replace AbstractStreamOperator.
AbstractUdfStreamOperator This is used as the base class for operators that have a user-defined function.
ChainingStrategy Defines the chaining scheme for the operator.
CoordinatedOperatorFactory A factory class for the StreamOperators implementing OperatorEventHandler.
Input Input interface used in MultipleInputStreamOperator.
InputFormatOperatorFactory Input format source operator factory.
InputSelection Describe the input selection that stream operators want to read records.
InputSelection.Builder Utility class for creating InputSelection.
InternalTimer Internal interface for in-flight timers.
InternalTimerService Interface for working with time and timers.
InternalTimersSnapshot A snapshot of internal timers, containing event and processing timers and the serializers to use to write / read them.
InternalTimersSnapshotReaderWriters.InternalTimersSnapshotReader A reader for a InternalTimersSnapshot.
InternalTimersSnapshotReaderWriters.InternalTimersSnapshotWriter A writer for a InternalTimersSnapshot.
InternalTimeServiceManager An entity keeping all the time-related services.
InternalTimeServiceManager.Provider A provider pattern for creating an instance of a InternalTimeServiceManager.
InternalTimeServiceManagerImpl An entity keeping all the time-related services.
KeyContext Inteface for setting and querying the current key of keyed operations.
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).
OneInputStreamOperator Interface for stream operators with one input.
OperatorSnapshotFutures Result of StreamOperator.snapshotState(long, long, org.apache.flink.runtime.checkpoint.CheckpointOptions, org.apache.flink.runtime.state.CheckpointStreamFactory).
Output A StreamOperator is supplied with an object of this interface that can be used to emit elements and other messages, such as barriers and watermarks, from an operator.
OutputFormatOperatorFactory Interface for operator factories which create the sink operator containing an OutputFormat.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
SimpleOperatorFactory Simple factory which just wrap existed StreamOperator.
StreamingRuntimeContext Implementation of the RuntimeContext, for streaming operators.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.
StreamOperatorParameters Helper class to construct AbstractStreamOperatorV2.
StreamOperatorStateContext This interface represents a context from which a stream operator can initialize everything connected to state such as e.g.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
StreamSink A StreamOperator for executing SinkFunctions.
StreamSource StreamOperator for streaming sources.
StreamTaskStateInitializer This is the interface through which stream task expose a StreamOperatorStateContext to their operators.
TimerHeapInternalTimer Implementation of InternalTimer to use with a HeapPriorityQueueSet.
TimerSerializer A serializer for TimerHeapInternalTimer objects that produces a serialization format that is lexicographically aligned the priority of the timers.
TimerSerializerSnapshot Snapshot class for the TimerSerializer.
Triggerable Interface for things that can be called by InternalTimerService.
UdfStreamOperatorFactory Udf stream operator factory.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.async

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractStreamOperatorFactory Base class for all stream operator factories.
AbstractUdfStreamOperator This is used as the base class for operators that have a user-defined function.
BoundedOneInput Interface for one-input operators that need to be notified about the logical/semantical end of input.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).
OneInputStreamOperator Interface for stream operators with one input.
OneInputStreamOperatorFactory A factory to create OneInputStreamOperator.
Output A StreamOperator is supplied with an object of this interface that can be used to emit elements and other messages, such as barriers and watermarks, from an operator.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.
StreamOperatorParameters Helper class to construct AbstractStreamOperatorV2.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
YieldingOperatorFactory An operator that needs access to the MailboxExecutor to yield to downstream operators needs to be created through a factory implementing this interface.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.async.queue

Class and Description
TimestampedCollector Wrapper around an Output for user functions that expect a Output.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.co

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractUdfStreamOperator This is used as the base class for operators that have a user-defined function.
BoundedMultiInput Interface for multi-input operators that need to be notified about the logical/semantical end of input.
InputSelectable Interface for stream operators that can select the input to get StreamRecord.
InputSelection Describe the input selection that stream operators want to read records.
InternalTimer Internal interface for in-flight timers.
KeyContext Inteface for setting and querying the current key of keyed operations.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
TimestampedCollector Wrapper around an Output for user functions that expect a Output.
Triggerable Interface for things that can be called by InternalTimerService.
TwoInputStreamOperator Interface for stream operators with two inputs.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.collect

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractStreamOperatorFactory Base class for all stream operator factories.
AbstractUdfStreamOperator This is used as the base class for operators that have a user-defined function.
CoordinatedOperatorFactory A factory class for the StreamOperators implementing OperatorEventHandler.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
OneInputStreamOperator Interface for stream operators with one input.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
SimpleOperatorFactory Simple factory which just wrap existed StreamOperator.
SimpleUdfStreamOperatorFactory Udf stream operator factory which just wrap existed AbstractUdfStreamOperator.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.
StreamOperatorParameters Helper class to construct AbstractStreamOperatorV2.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
StreamSink A StreamOperator for executing SinkFunctions.
UdfStreamOperatorFactory Udf stream operator factory.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.sort

Class and Description
InputSelectable Interface for stream operators that can select the input to get StreamRecord.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.operators.sorted.state

Class and Description
InternalTimerService Interface for working with time and timers.
InternalTimeServiceManager An entity keeping all the time-related services.
KeyContext Inteface for setting and querying the current key of keyed operations.
Triggerable Interface for things that can be called by InternalTimerService.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.api.transformations

Class and Description
ChainingStrategy Defines the chaining scheme for the operator.
OneInputStreamOperator Interface for stream operators with one input.
StreamOperatorFactory A factory to create StreamOperator.
StreamSink A StreamOperator for executing SinkFunctions.
StreamSource StreamOperator for streaming sources.
TwoInputStreamOperator Interface for stream operators with two inputs.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.io

Class and Description
BoundedMultiInput Interface for multi-input operators that need to be notified about the logical/semantical end of input.
InputSelectable Interface for stream operators that can select the input to get StreamRecord.
MultipleInputStreamOperator Interface for stream operators with multiple Inputs.
Output A StreamOperator is supplied with an object of this interface that can be used to emit elements and other messages, such as barriers and watermarks, from an operator.
SourceOperator Base source operator only used for integrating the source reader which is proposed by FLIP-27.
TwoInputStreamOperator Interface for stream operators with two inputs.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.io.checkpointing

Class and Description
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.operators

Class and Description
AbstractStreamOperator Base class for all stream operators.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
OneInputStreamOperator Interface for stream operators with one input.
Output A StreamOperator is supplied with an object of this interface that can be used to emit elements and other messages, such as barriers and watermarks, from an operator.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.operators.sink

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractStreamOperatorFactory Base class for all stream operator factories.
BoundedOneInput Interface for one-input operators that need to be notified about the logical/semantical end of input.
Input Input interface used in MultipleInputStreamOperator.
KeyContext Inteface for setting and querying the current key of keyed operations.
OneInputStreamOperator Interface for stream operators with one input.
OneInputStreamOperatorFactory A factory to create OneInputStreamOperator.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorFactory A factory to create StreamOperator.
StreamOperatorParameters Helper class to construct AbstractStreamOperatorV2.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.operators.windowing

Class and Description
AbstractStreamOperator Base class for all stream operators.
AbstractUdfStreamOperator This is used as the base class for operators that have a user-defined function.
Input Input interface used in MultipleInputStreamOperator.
InternalTimer Internal interface for in-flight timers.
InternalTimerService Interface for working with time and timers.
KeyContext Inteface for setting and querying the current key of keyed operations.
OneInputStreamOperator Interface for stream operators with one input.
OutputTypeConfigurable Stream operators can implement this interface if they need access to the output type information at StreamGraph generation.
SetupableStreamOperator Deprecated. This class is deprecated in favour of using StreamOperatorFactory and it's StreamOperatorFactory.createStreamOperator(org.apache.flink.streaming.api.operators.StreamOperatorParameters<OUT>) and passing the required parameters to the Operator's constructor in create method.
StreamOperator Basic interface for stream operators.
StreamOperatorStateHandler.CheckpointedStreamOperator Custom state handling hooks to be invoked by StreamOperatorStateHandler.
TimestampedCollector Wrapper around an Output for user functions that expect a Output.
Triggerable Interface for things that can be called by InternalTimerService.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.tasks

Class and Description
BoundedMultiInput Interface for multi-input operators that need to be notified about the logical/semantical end of input.
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).
Output A StreamOperator is supplied with an object of this interface that can be used to emit elements and other messages, such as barriers and watermarks, from an operator.
StreamOperator Basic interface for stream operators.
StreamSource StreamOperator for streaming sources.
StreamTaskStateInitializer This is the interface through which stream task expose a StreamOperatorStateContext to their operators.

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.tasks.mailbox

Class and Description
MailboxExecutor Executor like interface for an build around a mailbox-based execution model (see TaskMailbox).

Classes in org.apache.flink.streaming.api.operators used by org.apache.flink.streaming.runtime.translators

Class and Description
StreamOperatorFactory A factory to create StreamOperator.