About the Encoding Type for a Publishable Document Type

The encoding type indicates how Integration Server encodes and decodes published instances of the document type. For a publishable document type that uses Universal Messaging as the messaging provider, you can specify an encoding type. You can specify one of the following encoding types:

IData, the universal container in Integration Server for sending and receiving data. When a document type uses IData as the encoding type, Integration Server encodes published instances of the document type as a serialized IData object.

Protocol buffers, a format for serializing structured data developed by Google and implemented by Integration Server. When a document type uses protocol buffers as the encoding type, Integration Server encodes the published instances of the document type as a protocol buffer.

Note:
When a publishable document type uses Broker as the messaging provider, Integration Server always encodes published documents as a Broker Event. Integration Server encodes locally published documents as IData.

The encoding type for a publishable document type also determines the scope of the message to which Universal Messaging applies a provider filter. In turn, this affects the provider filters that you can build for the webMethods Messaging Triggers that subscribe to the document type.

When IData is the encoding type, Universal Messaging can filter on the custom header fields added via _properties only. The provider filter created by a webMethods Messaging Trigger can include _properties header fields only.

When protocol buffers is the encoding type, Universal Messaging can filter on the body of the document only. However, when creating the published document, Integration Server includes the _properties headers in the body of the document as well. The provider filter created by a webMethods Messaging Trigger can include body and _properties header fields.

For more information about creating filters for use with Universal Messaging, see Creating a webMethods Messaging Trigger .

Note:
You can only specify an encoding type for a publishable document type in Integration Server and Designer versions 9.7 or later. Additionally, the publishable document type must use Universal Messaging version 9.7 or later as the messaging provider.