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Mule ESB 3 Examples

This book describes the various examples that ship with Mule ESB 3, how to run them, and how to troubleshoot problems.

Examples Illustrating Core Concepts

• Configuring an Endpoint - Introduces Flows and Endpoints, and demonstrates how to invoke a Mule application using HTTP.
• Adding Message Processors to a Flow - Demonstrates how to add message processing components, in this example Logger and Echo, to a Flow.
• Adding Business Logic to a Flow - Demonstrates how to add custom code to a flow using a Component.
• Understanding the Mule Message - Demonstrates using the Mule expression language to view the composition of a typical Mule message, including the message scope, message properties, and payload data.
• Filtering Invalid Requests - Demonstrates how to use Filters to screen out invalid requests.
• Transforming Data in a Flow - Demonstrates how to use Transformers to alter data in an HTTP request within a Flow.
• Invoking Component Methods - Demonstrates how to resolve the method entry point when invoking business logic in a Java class represented as a Component.
• Manipulating Requests Using Scripting - Demonstrates the use of scripting in Mule, using Groovy to transform an incoming message.
• Controlling the Response to a Client - Demonstrates how to control the response data sent back to a client.
• Using Outbound Endpoints to Publish Data - Demonstrates how to use an outbound Endpoint to take data received via an HTTP request and output it to a file.
• Interactions with Exchange Patterns - Demonstrates the difference between one-way and request-response exchange patterns.

Use Case Examples

For information on using the Example Launcher to run Use Cases, see:

• Running the Examples With the Example Launcher

The following complete examples, which are included with Mule, demonstrate typical business use cases:

• Bookstore Example
• Echo Example
• Error Handler Example
• GPS Walker Example
• Hello World Example
• Loan Broker Example
• Loan Broker BPM Example
• Notifications Example
• Scripting Example
• Stock Quote Example
• Widget Example
• JDBC Transport Example
• WebSphere MQ Example
• WS-Security Example
• CEP Example