Component Configuration Files Overview of the Oracle CEP Programming Model
1.1.6 How Components Fit Together
Oracle CEP applications are made of services that are assembled together to form an Event Processing Network EPN. The server uses the Spring framework as its assembly mechanism due to Springs popularity and simplicity. Oracle CEP has extended the Spring framework to further simplify the process of assembling applications. This approach allows Oracle CEP applications to be easily integrated with existing Spring-beans, and other light-weight programming frameworks that are based upon a dependency injection mechanism. A common approach for dependency injection is the usage of XML configuration files to declaratively specify the dependencies and assembly of an application. You assemble an Oracle CEP application an EPN assembly file before deploying it to the server; this EPN assembly file is an extension of the Spring framework XML configuration file. After an application is assembled, it must be package so that it can be deployed into Oracle CEP. This is a simple process. The deployment unit of an application is a plain JAR file, which must contain, at a minimum, the following artifacts: ■ The compiled application Java code of the business logic POJO. ■ Component configuration files. Each processor is required to have a configuration file, although adapters and streams do not need to have a configuration file if the default configuration is adequate and you do not plan to monitor these components. ■ The EPN assembly file. ■ A MANIFEST.MF file with some additional OSGi entries. After you assemble the artifacts into a JAR file, you deploy this bundle to Oracle CEP so it can immediately start receiving incoming data. For more information, see Chapter 24, Assembling and Deploying Oracle CEP Applications .1.1.7 Extending the EPN
In addition to the components that Oracle CEP provides, you can extend the EPN by creating custom adapters, event beans, and Spring beans. You can also extend the EPN using the Oracle Java data cartridge and Oracle Spatial to incorporate Java and Oracle Spatial operations in your Oracle CQL queries. You can also expose Oracle CEP applications as Web services and consume Web services in your Oracle CEP application. For more information, see Part IV, Extending the Oracle CEP Event Processing Network1.1.8 High Availability and Scalability
When designing an Oracle CEP application, it is a best practice to consider high availability and scalability early in the design process. Oracle CEP provides a range of high availability options that allow you to declaratively configure the quality of service your application requires for recovering from server failures. Oracle CEP also provides a variety of features that allow you to scale your application to accommodate increasing event rates. Overview of Creating Oracle CEP Applications 1-15 For more information, see: ■ Part V, Developing Applications for High Availability ■ Part VI, Developing Applications for Scalability1.1.9 Oracle CEP Application Lifecycle
Figure 1–2 shows a state diagram for the Oracle CEP application lifecycle. In this diagram, the state names STARTING, INITIALIZING, RUNNING, SUSPENDING, SUSPENDED, and FAILED correspond to the ApplicationRuntimeMBean method getState return values. These states are specific to Oracle CEP; they are not OSGi bundle states. Figure 1–2 Oracle CEP Application Lifecycle State Diagram This section describes the lifecycle of an application deployed to the Oracle CEP server and the sequence of com.bea.wlevs.ede.api API callbacks. The lifecycle description is broken down into actions that a user performs, including: ■ Section 1.1.9.1, User Action: Installing an Application or Start the Server With Application Already Deployed ■ Section 1.1.9.2, User Action: Suspend Application ■ Section 1.1.9.3, User Action: Resume Application ■ Section 1.1.9.4, User Action: Uninstall Application ■ Section 1.1.9.5, User Action: Update Application ■ Section 1.1.9.6, User Action: Calling Methods of Stream and Relation Sources and Sinks Note: For information on Oracle CEP server lifecycle, see Oracle CEP Server Lifecycle in the Oracle Complex Event Processing Administrators Guide.Parts
» Oracle Fusion Middleware Online Documentation Library
» Adapter Components of the Oracle CEP Event Processing Network
» Channel Processor Components of the Oracle CEP Event Processing Network
» Event Bean Components of the Oracle CEP Event Processing Network
» Spring Bean Cache Components of the Oracle CEP Event Processing Network
» Table Nested Stages Components of the Oracle CEP Event Processing Network
» Foreign Stages Components of the Oracle CEP Event Processing Network
» Streams and Relations Transmitting Events in the EPN: Stream and Relation Sources and Sinks
» Transmitting Events in the EPN: Examples
» EPN Assembly File Overview of the Oracle CEP Programming Model
» Component Configuration Files Overview of the Oracle CEP Programming Model
» High Availability and Scalability
» Oracle CEP calls the ResumableBean.beforeResume method on all
» For each bean that implements RunnableBean, Oracle CEP starts it running in a
» Application state is now RUNNING.
» User Action: Uninstall Application
» User Action: Update Application
» User Action: Calling Methods of Stream and Relation Sources and Sinks
» Oracle CEP APIs Overview of the Oracle CEP Programming Model
» Creating an Oracle CEP Application
» Static Resource Names Static Resource Injection
» Dynamic Resource Names Static Resource Injection
» Dynamic Resource Injection Dynamic Resource Lookup Using JNDI
» Next Steps Oracle Fusion Middleware Online Documentation Library
» Event Type Instantiation and Immutability
» Event Types Specified as JavaBean or Java Class
» Event Types Specified as java.util.Map Event Types Specified as a Tuple
» Event Types for use With a Database Table Source
» Event Types for use With the csvgen Adapter
» Event Type and Serialization Creating Oracle CEP Event Types
» How to Create an Oracle CEP Event Type as a JavaBean Using the Event Type Repository Editor
» How to Create an Oracle CEP Event Type as a JavaBean Manually
» How to Create an Oracle CEP Event Type as a Tuple Using the Event Type Repository Editor
» How to Create an Oracle CEP Event Type as a Tuple Manually
» How to Create an Oracle CEP Event Type as a Java Class Manually
» How to Create an Oracle CEP Event Type as a java.util.Map
» Using an Event Type Builder Factory
» Sharing Event Types Between Application Bundles
» Installing the Latest Oracle CEP IDE for Eclipse
» Installing the Oracle CEP IDE for Eclipse Distributed With Oracle CEP
» Configuring Eclipse Oracle Fusion Middleware Online Documentation Library
» How to Create an Oracle CEP Project
» Oracle CEP Project Overview Select File New Other.
» How to Export an Oracle CEP Project
» In the Binary Build area, check the resources you want exported with your
» How to Add a Standard JAR File to an Oracle CEP Project
» How to Export a Package How to Import a Package
» How to Create a Remote Oracle CEP Server and Server Runtime
» How to Create an Oracle CEP Server Runtime
» How to Start a Local Oracle CEP Server
» How to Deploy an Application to an Oracle CEP Server
» How to Configure Connection and Control Settings for Oracle CEP Server
» How to Configure Domain Runtime Settings for Oracle CEP Server
» How to Start the Oracle CEP Visualizer from Oracle CEP IDE for Eclipse
» Right-click a server in the Servers view and select Debug.
» How to Open the EPN Editor from a Project Folder
» How to Open the EPN Editor from a Context or Configuration File
» Flow Representation Filtering EPN Editor Overview
» Zooming Layout Showing and Hiding Unconnected Beans
» Printing and Exporting to an Image Configuration Badging
» Link Specification Location Indicator
» Nested Stages EPN Editor Overview
» Event Type Repository Editor
» Hyperlinking in Component Configuration and EPN Assembly Files
» Hyperlinking in Oracle CQL Statements
» Type the keyboard short cut Ctrl-Alt-T.
» Right-click on an empty portion of the EPN Editor surface and select New from
» Laying Out Nodes Renaming Nodes Deleting Nodes
» Conversion Between JMS Messages and Event Types
» JMS Service Providers Outbound JMS Adapter
» How to Configure a JMS Adapter Using the Oracle CEP IDE for Eclipse
» How to Configure a JMS Adapter Manually
» How to Configure a JMS Adapter for Oracle WebLogic Server JMS Manually
» How to Configure a JMS Adapter for Tibco EMS JMS Manually
» How to Create a Custom Converter for the Inbound JMS Adapter
» How to Create a Custom Converter for the Outbound JMS Adapter
» How to Encrypt Passwords in the JMS Adapter Component Configuration File
» JMS Inbound Adapter EPN Assembly File Configuration
» JMS Outbound Adapter EPN Assembly File Configuration
» JMS Inbound Adapter Component Configuration
» JMS Outbound Adapter Component Configuration
» Local Publishing Overview of the Built-In Pub-Sub Adapter for Publishing
» Remote Publishing Overview of the Built-In Pub-Sub Adapter for Publishing
» Overview of the Built-In Pub-Sub Adapter for Subscribing
» Converting Between JSON Messages and Event Types
» How to Configure an HTTP Pub-Sub Adapter Using the Oracle CEP IDE for Eclipse
» How to Configure an HTTP Pub-Sub Adapter Manually
» HTTP Pub-Sub Adapter for Publising EPN Assembly File Configuration
» HTTP Pub-Sub Adapter for Subscribing EPN Assembly File Configuration
» HTTP Pub-Sub Adapter for Publising Component Configuration
» HTTP Pub-Sub Adapter for Subscribing Component Configuration
» Channels as Streams Channels Representing Streams and Relations
» Channels as Relations Channels Representing Streams and Relations
» System-Timestamped Channels Application-Timestamped Channels
» Controlling Which Queries Output to a Downstream Channel: selector
» Batch Processing Channels Overview of Channel Configuration
» EventPartitioner Channels Overview of Channel Configuration
» How to Configure a System-Timestamped Channel Using Oracle CEP IDE for Eclipse
» How to Configure an Application-Timestamped Channel Using Oracle CEP IDE for Eclipse
» How to Create a Channel Component Configuration File Manually
» Channel Component Configuration File Channel EPN Assembly File
» How to Configure an Oracle CQL Processor Using Oracle CEP IDE for Eclipse
» How to Create an Oracle CQL Processor Component Configuration File Manually
» How to Configure an Oracle CQL Processor Table Source Using Oracle CEP IDE for Eclipse
» Oracle CQL Processor Component Configuration File
» Oracle CQL Processor EPN Assembly File
» Configuring an Oracle CQL Processor Cache Source Overview of EPL Processor Component Configuration
» How to Configure an EPL Processor Manually
» Configuring an EPL Processor Cache Source
» EPL Processor Component Configuration File
» EPL Processor EPN Assembly File
» Use Case: Publishing Events to a Cache
» Use Case: Consuming Data From a Cache
» Use Case: Updating and Deleting Data in a Cache
» Use Case: Using a Cache in a Multi-Server Domain
» Additional Caching Features Overview of Oracle CEP Cache Configuration
» Caching APIs Overview of Oracle CEP Cache Configuration
» Specifying the Key Used to Index an Oracle CEP Local Cache
» Configuring an Oracle CEP Local Cache as an Event Source
» Configuring an Oracle CEP Local Cache Loader
» Configuring an Oracle CEP Local Cache Store
» The coherence-cache-config.xml File
» The tangosol-coherence-override.xml File
» Specifying the Key Used to Index an Oracle Coherence Cache
» Configuring an Oracle Coherence Cache as an Event Source
» Configuring an Oracle Coherence Cache Loader
» Configuring an Oracle Coherence Cache Store
» Configuring a Third-Party Caching System and Cache
» How to Access a Cache From an Oracle CQL Statement
» How To Access a Cache From an EPL Statement
» Accessing a Cache From an Adapter
» How to Access a Cache With JMX Using Oracle CEP Visualizer
» How to Access a Cache With JMX Using Java
» Default Persistent Event Store
» Custom Persistent Event Store
» Persistent Event Store Schema
» Querying Stored Events Overview of Configuring Event Record and Playback
» Configuring an Event Store for Oracle CEP Server
» Configuring a Component to Record Events
» Configuring a Component to Playback Events
» Starting and Stopping the Record and Playback of Events
» Description of the Berkeley Database Schema
» Accessing a Cache From an EPL User-Defined Function Creating a Custom Event Store Provider
» Custom Adapters as Event Sources Custom Adapters as Event Sinks
» How to Implement a Custom Adapter Using Ant
» Implementing a Custom Adapter as an Event Source
» Implementing a Custom Adapter as an Event Sink
» Implementing a Custom Adapter Factory
» How to Pass Static Login Credentials to the Data Feed Provider
» How to Pass Dynamic Login Credentials to the Data Feed Provider
» Configuring the Custom Adapter Component Configuration File
» Custom Event Beans as Event Sources
» Custom Event Beans as Event Sinks
» Implementing a Custom Event Bean as an Event Source
» Implementing a Custom Event Bean as an Event Sink
» Configuring the Custom Event Bean Component Configuration File
» Implementing a Custom Spring Bean as an Event Source
» Implementing a Custom Spring Bean as an Event Sink
» Declaring the Custom Spring Bean Components in your Application
» How to Expose an Oracle CEP Application as a Web Service
» How to Configure Oracle JDBC Data Cartridge Application Context
» Extending Component Configuration Using Annotations
» Extending Component Configuration Using an XSD
» How to Extend Component Configuration Using Annotations
» Creating the XSD Schema File
» Lifecycle Callback Annotations Lifecycle
» Rejoining the High Availability Multi-Server Domain
» Deployment Group and Notification Group
» High Availability Input Adapter
» Buffering Output Adapter High Availability Components
» Broadcast Output Adapter High Availability Components
» Correlating Output Adapter ActiveActiveGroupBean
» High Availability and Oracle Coherence
» Simple Failover Choosing a Quality of Service
» Simple Failover with Buffering
» Light-Weight Queue Trimming Choosing a Quality of Service
» Primary Oracle CEP High Availability Use Case
» Select the Minimum High Availability Your Application can Tolerate
» Use Oracle CEP High Availability Components at All Ingress and Egress Points
» Choose an Adequate warm-up-window Time Ensure Applications are Idempotent
» Source Event Identity Externally Understand the Importance of Event Ordering
» Range-Based Windows Oracle CQL Query Restrictions
» Tuple-Based Windows Oracle CQL Query Restrictions
» Partitioned Windows Oracle CQL Query Restrictions
» Sliding Windows Oracle CQL Query Restrictions
» DURATION Clause and Non-Event Detection
» Prefer Application Time Oracle CQL Query Restrictions
» How to Configure Simple Failover
» How to Configure Simple Failover With Buffering
» How to Configure Light-Weight Queue Trimming
» How to Configure Precise Recovery With JMS
» High Availability Input Adapter EPN Assembly File Configuration
» High Availability Input Adapter Component Configuration File Configuration
» Broadcast Output Adapter EPN Assembly File Configuration
» Broadcast Output Adapter Component Configuration File Configuration
» Correlating Output Adapter EPN Assembly File Configuration
» Correlating Output Adapter Component Configuration File Configuration
» How to Configure Scalability With the Default Channel EventPartitioner
» How to Configure Scalability With a Custom Channel EventPartitioner
» How to Configure Scalability in a JMS Application Without Oracle CEP High Availability
» How to Configure Scalability in a JMS Application With Oracle CEP High Availability
» How to Configure the ActiveActiveGroupBean Group Pattern Match
» Applications Overview of Application Assembly and Deployment
» Private Application Dependencies Application Dependencies
» Shared Application Dependencies Application Dependencies
» Library Directory Application Libraries
» Library Extensions Directory Application Libraries
» Creating Application Libraries Application Libraries
» Deployment and Deployment Order
» Configuration History Management Overview of Application Assembly and Deployment
» Assembling an Oracle CEP Application Using Oracle CEP IDE for Eclipse
» Creating the MANIFEST.MF File
» Assembling Applications With Foreign Stages
» How to Assemble a Custom Adapter in its Own Bundle
» How to Assemble a Custom Event Bean in its Own Bundle
» Click OK. How to Configure an Absolute Path
» How to Update an Application Library Using Oracle CEP IDE for Eclipse
» How to View an Application Library Using the Oracle CEP Visualizer
» Message Catalog Hierarchy Using Message Catalogs With Oracle CEP Server
» Guidelines for Naming Message Catalogs
» Using Message Arguments Using Message Catalogs With Oracle CEP Server
» Message Catalog Formats Using Message Catalogs With Oracle CEP Server
» Message Catalog Localization Using Message Catalogs With Oracle CEP Server
» How to Parse a Message Catalog to Generate Logger and TextFormatter Classes for Localization
» How to Deploy an Oracle CEP Application Using Oracle CEP IDE for Eclipse
» How to Deploy an Oracle CEP Application Using Oracle CEP Visualizer
» How to Deploy an Oracle CEP Application Using the Deployer Utility
» Overview of Testing Applications With the Load Generator and csvgen Adapter
» Configuring and Running the Load Generator Utility
» Creating a Load Generator Property File
» Configuring the csvgen Adapter in Your Application
» Event Inspector HTTP Publish-Subscribe Channel and Server
» How to Trace Events Using Oracle CEP Visualizer
» Scalability Using the ActiveActiveGroupBean
» Host Configuration High Availability Performance Tuning
» High Availability Input Adapter and Quality of Service
» High Availability Input Adapter Configuration
» Broadcast Output Adapter Configuration
» Oracle Coherence Heartbeat Frequency
» Oracle Coherence Serialization Oracle Coherence Performance Tuning Options
» Adapter Lifecycle Annotations OSGi Service Reference Annotations
» Example com.bea.wlevs.configuration.Activate
» Example com.bea.wlevs.configuration.Rollback
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