Advanced and locked features

In addition to its name and component options, special types of behavior and criteria objects may feature these additional members:

• A uuid string signifies an advanced feature. Advanced behaviors and criteria are read-only, and can only be modified by ​Akamai​ representatives. When distributed to the edge network, all property settings convert to the executable format known as XML metadata. Advanced features deploy a portion of that XML metadata customized specifically for you, whose functionality falls outside the predefined guidelines of what other read/write behaviors can do. Such metadata might also cause problems if executed outside of its intended context within the rule tree. See also Custom behaviors and overrides to learn how to reuse advanced features.

• If a locked boolean member is true, it indicates a behavior or criteria that your ​Akamai​ representative has locked so that you can't modify it. You typically arrange with your representative to lock certain behaviors to protect sensitive data from erroneous changes. Any kind of behavior or criteria may be locked, including writable ones.

When modifying rule trees, you need to preserve the state of any uuid or locked members. You receive an error if you try to modify or delete either of these special types of feature. You can reposition regular features relative to these special ones, for example by inserting them within the same rule, but each rule's sequence of special features needs to remain unchanged.

Higher-level rule trees may also indicate the presence of these special features:

• A uuid member present on a rule object indicates that at least one of its component behaviors or criteria is advanced and read-only. You need to preserve this uuid as well when modifying the rule tree.

• A criteriaLocked member enabled on a criteria rule by your Akamai representative means that you may not insert additional criteria objects within the sequence. This typically keeps complex logical tests from breaking. Preserve the state of criteriaLocked when modifying the rule tree.