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org.apache.s4.base | Defines some of the basic elements of the S4 platforms. |
org.apache.s4.base.util | Utility classes, mostly related to classloading. |
org.apache.s4.comm | This package and subpackages define mechanisms for low-level communications in the S4 platform. |
org.apache.s4.comm.serialize | Serialization utilities for messages and PEs. |
org.apache.s4.comm.tcp | TCP-based communication layer implementation. |
org.apache.s4.comm.tools | Utility classes. |
org.apache.s4.comm.topology | Clusters configurations and partitions assignments to cluster nodes through Zookeeper. |
org.apache.s4.comm.udp | UDP-based implementation of the communication layer. |
org.apache.s4.core | Key classes of the S4 platform, implementing concepts such as Stream, Processing Element. |
org.apache.s4.core.adapter | This package contains utilities for creating and configuring adapter apps. |
org.apache.s4.core.ft | This package contains classes for providing some fault tolerance to S4 PEs. |
org.apache.s4.core.gen | Utility classes for dynamic code generation, in particular proxies to enable dispatching of events to methods of processing elements based on the runtime type of the event. |
org.apache.s4.core.util | Utility classes. |
org.apache.s4.core.window | Provides facilities for processing events as samples, through time or count-based windows. |
org.apache.s4.deploy | Dynamic application deployment framework, that allows identifying new available applications, downloading them through various protocols, loading them and starting them in the current S4 node. |
org.apache.s4.tools | Implementations of S4-related commands. |
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