The following screenshots show Enterprise Edition version 3.5 EsperHQ web-based client. Enterprise Edition is a commercial product of EsperTech with source code available on request to customers of EsperTech. For more information please see the product descriptions or mail us at info@espertech.com. © Copyright EsperTech Inc. 2010

EsperHQ Main Screen

This screen is the entry screen for EsperHQ.

Explanations:

• The top bar features in order: the Windows menu, maximize, home link, context help, DDS Endpoint selection, Engine URI selection, version and logoff
• The left-side includes Engine Management, Eventlet Management, Eventlets; we use the term "Eventlet" to mean real-time reporting continuously-updating displays.
• Under Engine Management fall functions for design and management of modules, simulations, statements, types/schemas, variables etc.
• Under Eventlet Management it groups the creation of new eventlets and the management of data push: Endpoints presents DDS detail, Subscribers presents EsperHQ detail
• Under Eventlets is a list of saved eventlets.

Create Statement

This is the quick-entry screen to create an EPL statement:

Explanations:

• You may enter a name, description and EPL expression to create the EPL statement.

Deployed Modules

The dialog shows a list of modules currently deployed.

Explanations:

• Clicking on a module brings up the module detail dialog.

Deployment Detail

Selection of a deployed module brings up this dialog.

Explanations:

• The dialog allows un-deploying and removing deployments and saving to a file; editing a deployed module is done through the module editor.

Design Module

This dialog creates and edits EPL modules.

Explanations:

• You may create a module starting from a template.
• You may edit and deploy an existing module.
• You may save and load from files.

Design Statement

This is a form-based dialog and EPL editor with round-trip features that includes an expression builder.

Explanations:

• You may create an EPL statement starting from a template.
• You may edit an existing statement.
• Includes expression builder dialog for expressions, patterns and match-recognize.

A screen shot of the expression builder is shown below:

Event Types

This dialog presents a view of available event types (schemas) and their usage in EPL statements.

Map Statements

This dialog displays statement stream consumption and dependency.

Named Windows

This dialog presents a view of named windows.

On-Demand Query Execution

Use this dialog to execute an on-demand (fire-and-forget, non-continuous) query.

Simulations

This dialog presents a list of currently running simulations, allows creating new simulations and managing existing simulations.

Simulation Entry

You may enter a schedule for the simulator to follow and the event data for the simulator to use.

Simulation Status

This dialog allows starting, stopping and removing simulations and views the simulation log entries.

Statements

This dialog is to find and select individual statements.

Statement Detail

After selecting a statement, this dialog allows viewing, managing, and querying for the selected statement.

Variables

This dialog allows viewing and changing variable values.

Eventlet Wizard

This series of 4 screens is a guided dialog to choose the type of real-time display, the resources to display and the mapping of resources.

In step 1 of the 4-screen wizard a user can select the type of real-time display.

In step 2 of the 4-screen wizard a user can select the resources to display: a single EPL statement, a dynamically-changing set of EPL statements, variable(s), on-demand query(s) or engine metrics.

In step 3 of the 4-screen wizard a user may configure the eventlet, bringing together the eventlet configuration with the resource information for selected resources. Consistent with the selection of a Timeline composition in the first step, this dialog reviews the selected statement and presents Timeline eventlet configuration options.

In step 4 of the 4-screen wizard a user may save and/or activate the eventlet, and also define name, description and style information.

Application Builder

The application builder is a 2-page wizard dialog to compose a complete web application that combines eventlets with static content or other dynamic content. On the first page you may compose an application in a drag & drop dialog. The second page serves to review and change generated markup as well as preview and launch the application.

Eventlet Launch

You may launch saved eventlets from the client or directly into a browser via URL parameters, by passing a descriptor or by JavaScript. This screenshot shows the hover launch dialog.

Eventlet Example 1 - Column Chart

This screenshot is taken from simple column chart eventlet launched in a browser window (outside of the web-based GUI).

Eventlet Example 2 - Timeline

This screenshot is taken from a timeline eventlet, with the controls dialog (each eventlet has one) shown right.

Eventlet Example 3 - Gauge

This screenshot is taken from a gauge eventlet.

Eventlets for Engine Metrics

Certain CEP engine metrics are predefined and can be displayed as eventlets.