com.googlecode.sarasvati
Interface CustomNodeWrapper

All Superinterfaces:

Adaptable, Node

All Known Implementing Classes:

HibCustomNodeWrapper, MemCustomNodeWrapper

public interface CustomNodeWrapper
extends Node

This interface represents a Node which will provide an adapter for instances of CustomNode, bridging the gap between a backend specific Node implementation, such as HibNode or MemNode, and the backend agnostic CustomNode.

Author:

Paul Lorenz

Method Summary

GuardResult	defaultGuard(Engine engine, NodeToken token) Evaluates the guard using the default strategy for the given Node/Engine combination.
CustomNode	getCustomNode(Engine engine) Returns the CustomNode being wrapped.
<T> T	getDefaultAdaptor(Class<T> clazz) Returns the default adapter for the current Engine.

Methods inherited from interface com.googlecode.sarasvati.Node

backtrack, execute, getExternal, getExternalEnv, getGraph, getGuard, getId, getJoinParam, getJoinStrategy, getJoinType, getName, getOriginatingExternalNode, getType, guard, isBacktrackable, isImportedFromExternal, isStart

Methods inherited from interface com.googlecode.sarasvati.adapter.Adaptable

getAdaptor

Method Detail

getCustomNode

CustomNode getCustomNode(Engine engine)

Returns the CustomNode being wrapped.

Parameters:

engine - The current engine, which may be required to load the CustomNode

Returns:

The CustomNode being wrapped.

getDefaultAdaptor

<T> T getDefaultAdaptor(Class<T> clazz)

Returns the default adapter for the current Engine.

Type Parameters:

T - The adapter

Parameters:

clazz - The adapter type being requested.

Returns:

An adapter of the type being requested or null, if none is available.

defaultGuard

GuardResult defaultGuard(Engine engine,
                         NodeToken token)

Evaluates the guard using the default strategy for the given Node/Engine combination.

Parameters:

engine - The engine executing the current process

token - The token which triggered the guard evaluation.

Returns:

A GuardResult based on the guard defined for the Node.