Application Download Tasks ##HOT##

Oracle CEP Visualizer is fairly self-explanatory and intuitive, so not all tasks are discussed here, but rather, just those that are most common and typical and from which other similar tasks can be deduced.

The Oracle CEP Event Processing Network (EPN) represents the interconnections between the various Oracle CEP components of an Oracle CEP application. Using Oracle CEP Visualizer, you can manage the EPN, including viewing and changing the configuration of a stage, recording and playing back events, and monitoring the throughput and latency of a stage or path. Right-click a stage to select common stage-related functions from a convenient context menu.

Application Download Tasks

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It is important to note that Oracle CEP Visualizer will update your configuration file on the server with any queries that you create. However, you will not see this take effect in your application from within the Oracle CEP IDE for Eclipse, in order to make the change there you will need to copy and paste the query from Oracle CEP Visualizer into your application.

Using the Oracle CEP Visualizer, you can manage the configuration changes you make to Oracle CEP components. You can review change history and you can undo (roll back) changes to an earlier version. You can perform these operations on a given resource or application in both standalone-server and multi-server domains.

You can change Max Threads from 0 to a positive integer (that is, from a pass-through to multiple threads) without redeploying. However, if you change Max Threads from a positive integer to 0 (that is, from multiple threads to a pass-through), then you must redeploy your application.

Use this element to specify whether or not the channel is application timestamped, that is, if the application is responsible for assigning a timestamp to each event, using any time domain. Valid values are:

DataSet Name: the value of the record-parameters child element dataset-name element from the simpleEventSource adapter application configuration file ORACLE-CEP-HOME\ocep_11.1\samples\domains\recplay_domain\defaultserver\applications\recplay\config.xml as Example 2-1 shows.

Event Type List: contains the Event Type List pane that displays the list of event types that are associated with a selected stage of the Oracle CEP application. Choose one or more events to playback.

You can use Oracle CEP Visualizer to monitor any channel stage (stream) of the event processing network (EPN) of an application. Oracle CEP defines the following metrics that you can monitor for each channel:

You can use Oracle CEP Visualizer to monitor the entry and exit points of a stage, or a specified path, of the event processing network (EPN) of an application. Oracle CEP defines the following metrics that you can monitor for each stage or path:

The Oracle CEP Visualizer monitoring feature is itself implemented as an Oracle CEP application; this means that the diagnostic information can be viewed as an event, and the application uses EPL rules to process these diagnostic events.

Oracle CEP internally deploys an application as a two step processes. The first step involves starting the application bundle inside the OSGi container. The second step involves starting and initializing the application. Because the second step is asynchronous in nature, Oracle CEP Visualizer does not wait for the completion of the second operation. As soon as the application has successfully started, the Oracle CEP Visualizer navigation tree is updated automatically with the new deployment and a successful message will be sent to the dashboard. However, if the application fails to start, you must check for errors on the server side because no messages/updates will occur on the Oracle CEP Visualizer.

This section describes how to deploy an application to a standalone-server domain. For information on deploying an application in a multi-server domain, see Section 2.3.2, "Deploying an Application in a Multi-Server Domain".

Oracle CEP internally deploys an application as a two step processes. The first step involves starting the application bundle inside the OSGi container. The second step involves starting and initializing the application. Because the second step is asynchronous in nature, Oracle CEP Visualizer does not wait for the completion of the second operation. As soon as the application has successfully started, the Oracle CEP Visualizer navigation tree is updated automatically with the new deployment and a successful message will be send to the dashboard. However, if the application fails to start, you must check for errors on the server side because no messages/updates will occur on the Oracle CEP Visualizer.

This section describes how to deploy an application to a multi-server domain. For information on deploying an application in a standalone-server domain, see Section 2.3.1, "Deploying an Application in a Standalone-Server Domain".

When you update an application, the Oracle CEP server erases the application's existing configuration history and starts a new configuration history for it. See Section 2.1.4, "Configuration History Management".

Oracle CEP Visualizer provides a sophisticated Query Wizard to simplify Oracle CQL view and query construction. You can drag and drop Oracle CQL elements to construct a view or query or you can drag and drop a complete Oracle CQL view or query template and customize it to suit your needs. The Oracle CQL Query Wizard is designed to allow business users to efficiently create syntactically correct Oracle CQL views and queries and apply them immediately to a deployed Oracle CEP application.

Using the Query Wizard, you can create Oracle CQL views and query. You cannot create Oracle CQL streams and relations. Your deployed Oracle CEP application must provide the streams and relations. For more information, see Oracle CEP Developer's Guide for Eclipse.

Oracle CEP Visualizer provides a sophisticated Query Wizard to simplify Oracle CQL query construction. You can select an existing query on the CQL Query tab and edit the query in the Query Wizard. The Oracle CQL Query Wizard is designed to allow business users to efficiently create syntactically correct Oracle CQL queries and apply them to a deployed Oracle CEP application.

You can edit existing Oracle CQL queries and views. You cannot edit Oracle CQL streams and relations. Your deployed Oracle CEP application must provide the streams and relations. For more information, see Oracle CEP Developer's Guide for Eclipse.

The RSource Oracle CQL construct represents an Oracle CQL relation that your Oracle CEP application provides or a relation type of view that you create. To create a stream type of source, an SSource, see Section 2.4.6.2, "Configuring an SSource CQL Construct".

The SSource Oracle CQL construct represents an Oracle CQL stream that your Oracle CEP application provides or a stream type of view you create. To create a relation type of source, an RSource, see Section 2.4.6.1, "Configuring an RSource CQL Construct".

The com.bea.wlevs.dataservices application includes the MonitorProcessor which in turn is associated with a default rule used to filter the events that are outputted to the diagnostic Dashboard. You can change this rule, or add new ones, if you want to customize this filtering.

Experts say it's important for students to use the summer to recharge mentally and physically for the next school year. But students should also be aware that the college application process has several layers to it, and some may take more coordination and planning than others. To that end, experts say, the earlier a student can start, the better.

"When we work with students on college applications, our goal is to have most of the application materials completed before senior year begins," Angela Warfield, principal consultant and founder of admissions consulting firm Compass Academics, wrote in an email. "That way, seniors and their families can focus on the milestones and memories that senior year brings without the stress of applications hanging over their heads."

While some scholarship application windows may not open until the fall, prospective college students can still explore available award opportunities. There are websites that can assist students in their scholarship search. (U.S. News offers a guide on finding scholarships for college.)

Though the weight of these tests in college applications has decreased, some institutions still require them. While many students take these tests during their junior year, some may elect to take them during their senior year as well. Experts say students who plan to take the ACT or SAT during their senior year should use the summer months to prepare for these exams and check individual college policies on using test scores.

There are several types of financial aid, including grants, scholarships, work-study and federal or private student loans. Families can research the financial aid application requirements and deadlines for the schools of interest to a prospective student. For example, some schools ask for a form called the CSS Profile, or College Scholarship Service Profile, in addition to the FAFSA, or Free Application for Federal Student Aid. ff782bc1db