How to use "registry" scope in WSO2 ESB 4.9.0? - wso2

Question

I want to have a try with the new "registry" scope in ESB 4.9.0, but when I set up a simple proxy with the provided example in property mediator documentation, it cannot be saved and reports an error.
TID: [-1234] [] [2015-09-24 15:30:21,085] ERROR {org.wso2.carbon.proxyadmin.service.ProxyServiceAdmin} - Unable to save changes made for the proxy service : test_property. Restored the existing proxy... :: Only 'axis2' or 'transport' or 'axis2-client' or 'default' or 'operation' values are allowed for attribute scope for a property mediator, Unsupported scope registry {org.wso2.carbon.proxyadmin.service.ProxyServiceAdmin}
org.apache.synapse.SynapseException: Only 'axis2' or 'transport' or 'axis2-client' or 'default' or 'operation' values are allowed for attribute scope for a property mediator, Unsupported scope registry
Here is the proxy
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="test_property"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<property name="conf:/Resource/foo" value="Sample Property Content" scope="registry"/>
<respond/>
</inSequence>
</target>
<description/>
</proxy>
I am not sure if I need to set up some configuration first? I downloaded a new esb 4.9.0 package, and run separately. Thanks in advance!

Answer 1

You can retrieve properties from within the registry by using the registry scope.
<property name="fromRegistryToDefault" expression="get-property('registry','registryPath#propertyName')"/>
Documentation of retrieving properties from registry
But I don't think you can store new properties into the registry store directly from a Proxy inSequence. Do you have any documentation about that?

Answer 2

Version 4.9 does not allow this value for the scope of a property mediator.
Download the ESB 5.0.0 and you will see that your proxy works perfectly.
You can store in "registry" scope in this version.
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="test_property"
startOnLoad="true"
statistics="disable"
trace="disable"
transports="http,https">
<target>
<inSequence>
<property name="conf:/Resource/foo"
scope="registry"
type="STRING"
value="Sample Property Content"/>
<log level="full"/>
<respond/>
</inSequence>
</target>
<description/>
</proxy>