org.apache.synapse.util.xpath.ext

Interface SynapseXpathFunctionContextProvider

public interface SynapseXpathFunctionContextProvider

This XPath Function Context provider Interface must be implemented when resolving custom XPath Function contexts .Any xpath function that can't be resolved by SynapseXPathFunctionContext will be delegated to this interface. Users should implement this API as well as jaxen based Function API . Extensions can be registered in synapse.properties under synapse.xpath.func.extensions

See Also:

Function, SynapseXPathFunctionContext

Method Summary

Modifier and Type	Method and Description
org.jaxen.Function	getInitializedExtFunction(MessageContext msgCtxt) This method should implement instatntiation code for custom xpath function for the registered QNames given by #getResolvingQName().Note that this extension provider is responsible for initalizing custom xpath function and returning a fresh function instance to Synapse.
QName	getResolvingQName() Should Implement this API to return supported custom expression

Method Detail

getInitializedExtFunction

org.jaxen.Function getInitializedExtFunction(MessageContext msgCtxt)

This method should implement instatntiation code for custom xpath function for the registered QNames given by #getResolvingQName().Note that this extension provider is responsible for initalizing custom xpath function and returning a fresh function instance to Synapse. Callers should be responsible for invoking the function explicitly.

Parameters:

msgCtxt - Synapse Message Context

Returns:

extension Function constructed with message

See Also:

Function.call(org.jaxen.Context, java.util.List)

getResolvingQName

QName getResolvingQName()

Should Implement this API to return supported custom expression

Returns:

This should return the supported QName (localname + prefix + namespace URI combination ) for this extension