ConfigKey<?> getConfigKey() {
        return ConfigKey.createFull(getRequestField(REQUEST_DEF_NAME).asString(),
                                    getRequestField(REQUEST_CLIENT_CONFIGID).asString(),
                                    getRequestField(REQUEST_DEF_NAMESPACE).asString());
    }
Contains slime request data objects. Provides methods for reading various fields from slime request data.
All data is read lazily.

@author Ulf Lilleengen
config/src/main/java/com/yahoo/vespa/config/protocol/SlimeRequestData.java