org.gatein.pc.federation

Interface PortletInvokerResolver

public interface PortletInvokerResolver

Encapsulates behavior to resolve FederatedPortletInvokers in the context of a FederatingPortletInvoker when the default resolution mechanism fails to retrieve an associated FederatedPortletInvoker.

Version:

$Revision$

Author:

Chris Laprun

Field Summary

Fields

Modifier and Type	Field and Description
static PortletInvokerResolver	DEFAULT_RESOLVER Default handling mechanism: if we haven't found an invoker for the portlet id in the first place, throw NoSuchPortletException if we specified a portlet id or null if we didn't.

Method Summary

Modifier and Type	Method and Description
Collection<String>	getKnownInvokerIds()
boolean	knows(String invokerId)
FederatedPortletInvoker	resolvePortletInvokerFor(String invokerId, FederatingPortletInvoker callingInvoker, String compoundPortletId) Attempts to resolve a FederatedPortletInvoker with the specified identifier in the context of the specified calling FederatingPortletInvoker, optionally trying to perform resolution to invoke an action on the specified portlet identifier.

Field Detail

DEFAULT_RESOLVER

static final PortletInvokerResolver DEFAULT_RESOLVER

Default handling mechanism: if we haven't found an invoker for the portlet id in the first place, throw NoSuchPortletException if we specified a portlet id or null if we didn't.

Method Detail

resolvePortletInvokerFor

FederatedPortletInvoker resolvePortletInvokerFor(String invokerId,
                                                 FederatingPortletInvoker callingInvoker,
                                                 String compoundPortletId)
                                          throws org.gatein.pc.api.NoSuchPortletException

Attempts to resolve a FederatedPortletInvoker with the specified identifier in the context of the specified calling FederatingPortletInvoker, optionally trying to perform resolution to invoke an action on the specified portlet identifier.

Parameters:

invokerId - the identifier of the FederatedPortletInvoker to be retrieved. Should match the optional compound portlet identifier if one is specified.

callingInvoker - the calling FederatingPortletInvoker which failed to resolve a FederatedPortletInvoker for the specified invoker identifier

compoundPortletId - an optional portlet identifier for which we are trying to resolve an invoker, if no such portlet identifier is required for the resolution, this argument should be null and implementations should be prepared for that case.

Returns:

the resolved FederatedPortletInvoker or null if one couldn't be found

Throws:

org.gatein.pc.api.NoSuchPortletException - if a PortletInvoker couldn't be found and a compound portlet identifier was specified

knows

boolean knows(String invokerId)

getKnownInvokerIds

Collection<String> getKnownInvokerIds()