Uses of Package
org.apache.storm.topology

Packages that use org.apache.storm.topology

Package	Description
org.apache.storm
org.apache.storm.bolt
org.apache.storm.cassandra.bolt
org.apache.storm.cassandra.executor
org.apache.storm.clojure
org.apache.storm.coordination
org.apache.storm.drpc
org.apache.storm.elasticsearch.bolt	ElasticSearch examples classes.
org.apache.storm.eventhubs.bolt
org.apache.storm.eventhubs.spout
org.apache.storm.flux.examples
org.apache.storm.flux.model
org.apache.storm.flux.wrappers.bolts
org.apache.storm.flux.wrappers.spouts
org.apache.storm.hbase.bolt
org.apache.storm.hbase.bolt.mapper
org.apache.storm.hbase.topology
org.apache.storm.hdfs.bolt
org.apache.storm.hdfs.spout
org.apache.storm.hive.bolt
org.apache.storm.jdbc.bolt
org.apache.storm.jdbc.mapper
org.apache.storm.jdbc.spout
org.apache.storm.jms
org.apache.storm.jms.bolt
org.apache.storm.jms.example
org.apache.storm.jms.spout
org.apache.storm.kafka.bolt
org.apache.storm.kafka.spout
org.apache.storm.kinesis.spout
org.apache.storm.lambda
org.apache.storm.loadgen
org.apache.storm.mongodb.bolt
org.apache.storm.mongodb.common.mapper
org.apache.storm.mongodb.topology
org.apache.storm.mqtt.bolt
org.apache.storm.mqtt.spout
org.apache.storm.opentsdb
org.apache.storm.opentsdb.bolt
org.apache.storm.perf.bolt
org.apache.storm.perf.spout
org.apache.storm.perf.utils
org.apache.storm.pmml
org.apache.storm.redis.bolt
org.apache.storm.redis.common.mapper
org.apache.storm.redis.topology
org.apache.storm.redis.trident
org.apache.storm.rocketmq.bolt
org.apache.storm.rocketmq.spout
org.apache.storm.solr.bolt
org.apache.storm.solr.spout
org.apache.storm.spout
org.apache.storm.sql.runtime
org.apache.storm.sql.runtime.datasource.socket.bolt
org.apache.storm.sql.runtime.datasource.socket.spout
org.apache.storm.st.topology.window
org.apache.storm.starter
org.apache.storm.starter.bolt
org.apache.storm.starter.spout
org.apache.storm.streams
org.apache.storm.testing
org.apache.storm.topology
org.apache.storm.topology.base
org.apache.storm.trident
org.apache.storm.trident.operation
org.apache.storm.trident.planner
org.apache.storm.trident.spout
org.apache.storm.trident.topology
org.apache.storm.trident.util

Classes in org.apache.storm.topology used by org.apache.storm

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.cassandra.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.cassandra.executor

Class and Description
FailedException

Classes in org.apache.storm.topology used by org.apache.storm.clojure

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.coordination

Class and Description
BoltDeclarer BoltDeclarer includes grouping APIs for storm topology.
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer
TopologyBuilder TopologyBuilder exposes the Java API for specifying a topology for Storm to execute.

Classes in org.apache.storm.topology used by org.apache.storm.drpc

Class and Description
BasicOutputCollector
ComponentConfigurationDeclarer
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer
ResourceDeclarer This is a new base interface that can be used by anything that wants to mirror RAS’s basic API.

Classes in org.apache.storm.topology used by org.apache.storm.elasticsearch.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.eventhubs.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.eventhubs.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.flux.examples

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IStatefulBolt A bolt abstraction for supporting stateful computation.
IStatefulComponent Common methods for stateful components in the topology.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.flux.model

Class and Description
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.

Classes in org.apache.storm.topology used by org.apache.storm.flux.wrappers.bolts

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.flux.wrappers.spouts

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hbase.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hbase.bolt.mapper

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hbase.topology

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hdfs.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hdfs.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.hive.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jdbc.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jdbc.mapper

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jdbc.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jms

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jms.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jms.example

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.jms.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.kafka.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.kafka.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.kinesis.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.lambda

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.loadgen

Class and Description
BasicOutputCollector
BoltDeclarer BoltDeclarer includes grouping APIs for storm topology.
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.mongodb.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.mongodb.common.mapper

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.mongodb.topology

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.mqtt.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.mqtt.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.opentsdb

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.opentsdb.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.perf.bolt

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.perf.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.perf.utils

Class and Description
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.

Classes in org.apache.storm.topology used by org.apache.storm.pmml

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.redis.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.redis.common.mapper

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.redis.topology

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.redis.trident

Class and Description
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.rocketmq.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.rocketmq.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.solr.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.solr.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.sql.runtime

Class and Description
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.

Classes in org.apache.storm.topology used by org.apache.storm.sql.runtime.datasource.socket.bolt

Class and Description
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.sql.runtime.datasource.socket.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.st.topology.window

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.starter

Class and Description
BasicOutputCollector
ConfigurableTopology Extensions of this class takes a reference to one or more configuration files.
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.starter.bolt

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.starter.spout

Class and Description
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.streams

Class and Description
IBasicBolt
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.

Classes in org.apache.storm.topology used by org.apache.storm.testing

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.topology

Class and Description
BaseConfigurationDeclarer
BaseStatefulBoltExecutor Base class that abstracts the common logic for executing bolts in a stateful topology.
BasicOutputCollector
BoltDeclarer BoltDeclarer includes grouping APIs for storm topology.
ComponentConfigurationDeclarer
ConfigurableTopology Extensions of this class takes a reference to one or more configuration files.
FailedException
IBasicBolt
IBasicOutputCollector
IComponent Common methods for all possible components in a topology.
InputDeclarer
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IStatefulBolt A bolt abstraction for supporting stateful computation.
IStatefulComponent Common methods for stateful components in the topology.
IStatefulWindowedBolt A windowed bolt abstraction for supporting windowing operation with state.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer
ResourceDeclarer This is a new base interface that can be used by anything that wants to mirror RAS’s basic API.
SpoutDeclarer
TopologyBuilder TopologyBuilder exposes the Java API for specifying a topology for Storm to execute.
TopologyBuilder.ConfigGetter
TupleFieldTimestampExtractor A TimestampExtractor that extracts timestamp from a specific field in the tuple.
WindowedBoltExecutor An IWindowedBolt wrapper that does the windowing of tuples.

Classes in org.apache.storm.topology used by org.apache.storm.topology.base

Class and Description
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IStatefulBolt A bolt abstraction for supporting stateful computation.
IStatefulComponent Common methods for stateful components in the topology.
IStatefulWindowedBolt A windowed bolt abstraction for supporting windowing operation with state.
IWindowedBolt A bolt abstraction for supporting time and count based sliding & tumbling windows.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.trident

Class and Description
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
ResourceDeclarer This is a new base interface that can be used by anything that wants to mirror RAS’s basic API.

Classes in org.apache.storm.topology used by org.apache.storm.trident.operation

Class and Description
ResourceDeclarer This is a new base interface that can be used by anything that wants to mirror RAS’s basic API.

Classes in org.apache.storm.topology used by org.apache.storm.trident.planner

Class and Description
IComponent Common methods for all possible components in a topology.
OutputFieldsDeclarer
ResourceDeclarer This is a new base interface that can be used by anything that wants to mirror RAS’s basic API.

Classes in org.apache.storm.topology used by org.apache.storm.trident.spout

Class and Description
BasicOutputCollector
IBasicBolt
IComponent Common methods for all possible components in a topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.trident.topology

Class and Description
BoltDeclarer BoltDeclarer includes grouping APIs for storm topology.
IComponent Common methods for all possible components in a topology.
IRichBolt When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
IRichSpout When writing topologies using Java, IRichBolt and IRichSpout are the main interfaces to use to implement components of the topology.
OutputFieldsDeclarer
SpoutDeclarer

Classes in org.apache.storm.topology used by org.apache.storm.trident.util

Class and Description
IComponent Common methods for all possible components in a topology.