Specifies the format used to transform operations and transactions into messages sent to JMS, to the Big Data target or to a file. The format is specified uniquely for each handler. The value may be:

• Velocity template

• Java class name (fully qualified - the class specified must be a type of formatter)

• csv for delimited values (such as comma separated values; the delimiter can be customized)

• fixed for fixed-length fields

• Built-in formatter, such as:

  • xml – demo XML format

  • xml2 – internal XML format

For example, to specify a custom Java class:

gg.handlerlist=abc
gg.handler.abc.format=com.mycompany.MyFormat

Or, for a Velocity template:

gg.handlerlist=xyz
gg.handler.xyz.format=path/to/sample.vm

If using templates, the file is found relative to some directory or JAR that is in the classpath. By default, the Oracle GoldenGate installation directory is in the classpath, so the preceding template could be placed in the dirprm directory of the Oracle GoldenGate installation location.

The default format is to use the built-in XML formatter.