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4. Advanced Configuration: Custom Properties

Much of the configuration and customization of Oracle Transportation Management involves managing

properties used by the application. These properties are initially distributed in a set of hierarchical

property files, where one property file can include another. This allows reuse of common properties on

both web servers and application servers and the overriding of these staged properties for a particular

installation.

Property Types

To understand property precedence, it's important to consider two basic types of properties in Oracle

Transportation Management:

 Single-valued. This is a property that has a single value for a given key.

 Multi-valued. This is a property that supports multiple values for a given key.

While most configurable properties are single-valued, a list of multi-valued properties can be found in

glog.readonly.properties under glog.properties.multiple entries. The

glog.workflow.topicGroup property, for example, is multi-valued: each value declares the number

of threads to allocate to a workflow topic queue.

Single-Valued Properties

Assume a single-valued property is defined in more than one property file and on more than one line

in a given property file. The declaration in the top-most property file takes precedence over

declarations in included files. The declaration lower in a property file takes precedence over one

defined above it. As an example, assume we have the following property files:

a.property=value1

!include standard.properties

a.property=value3

a.property=value2

glog.properties standard.properties

The value of a.property is set to value3 since the values in glog.properties take precedent over

those in standard.properties and the line with value3 is below the line with value1. Only if both

declarations in glog.properties were removed would the value of a.property be set to value2.

Multi-Valued Properties

Multi-valued properties work in a more additive way. Assume that a.property was declared to be

multi-valued. Then the values in both glog.properties and standard.properties are used. The

values for a.property will be value1, value2 and value3. If you needed to override (i.e. remove)

value2, use the !remove directive. This directive can be used to remove all values declared to date

or to remove a specific value. In the above example, we can remove value2 as follows:

a.property=value1

!include standard.properties

!remove a.property=value2

a.property=value3

a.property=value2

glog.properties standard.properties

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