Configuration file: parameters for the subscription aggregator source

The configuration block for SubscriptionAggregatorSource looks like this:

<Content
    xmlns:agg="http://mds.globus.org/aggregator/types"
    xsi:type="agg:AggregatorContent">
    <agg:AggregatorConfig xsi:type="agg:AggregatorConfig">
        <agg:AggregatorSubscriptionType>
            <TopicExpression Dialect="dialect">
            Topic Expression
            </TopicExpression>
            <Precondition Dialect="dialect">
            Precondition
            </Precondition>
            <Selector Dialect="dialect">
            Selector
            </Selector>
            <SubscriptionPolicy>
            Subscription Policy
            </SubscriptionPolicy>
            <InitialTerminationTime>time</InitialTerminationTime>
        </agg:AggregatorSubscriptionType>
    </agg:AggregatorConfig>
    <agg:AggregatorData/>
</Content>

where:

TopicExpression

This is the only required parameter; it specifies the topic expression to use in the subscription request.

[TODO: olink to core notification/subscription docs ].