Enterprise Integration Patterns
This page describes the Enterprise Integration Patterns which form the foundation of Camel.
Messaging Systems
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How does one application communicate with another using messaging? |
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How can two applications connected by a message channel exchange a piece of information? |
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How can we perform complex processing on a message while maintaining independence and flexibility? |
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How can you decouple individual processing steps so that messages can be passed to different filters depending on a set of conditions? |
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How can systems using different data formats communicate with each other using messaging? |
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How does an application connect to a messaging channel to send and receive messages? |
Messaging Channels
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How can the caller be sure that exactly one receiver will receive the document or perform the call? |
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How can the sender broadcast an event to all interested receivers? |
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What will the messaging system do with a message it cannot deliver? |
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How can the sender make sure that a message will be delivered, even if the messaging system fails? |
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What is an architecture that enables separate applications to work together, but in a de-coupled fashion such that applications can be easily added or removed without affecting the others? |
Message Routing
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How do we handle a situation where the implementation of a single logical function (e.g., inventory check) is spread across multiple physical systems? |
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How can a component avoid receiving uninteresting messages? |
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How do we route a message to a list of dynamically specified recipients? |
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How can we process a message if it contains multiple elements, each of which may have to be processed in a different way? |
Message Transformation
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How do we communicate with another system if the message originator does not have all the required data items available? |
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How do you simplify dealing with a large message, when you are interested only in a few data items? |
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How do you process messages that are semantically equivalent, but arrive in a different format? |
Messaging Endpoints
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How do you move data between domain objects and the messaging infrastructure while keeping the two independent of each other? |
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How can an application automatically consume messages as they become available? |
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How can an application consume a message when the application is ready? |
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How can a messaging client process multiple messages concurrently? |
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How can multiple consumers on a single channel coordinate their message processing? |
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How can a message consumer select which messages it wishes to receive? |
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How can a subscriber avoid missing messages while it's not listening for them? |
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How can a message receiver deal with duplicate messages? |
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How can a client control its transactions with the messaging system? |
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How do you encapsulate access to the messaging system from the rest of the application? |
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How can an application design a service to be invoked both via various messaging technologies and via non-messaging techniques? |
System Management
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How do you inspect messages that travel on a point-to-point channel? |