public MethodExpressionMethodBindingAdapter() 
{

}

 MethodExpressionMethodBindingAdapter(MethodBinding binding) 
{
	assert(null != binding);
	this.binding = binding;
}

 public boolean equals(Object other) 
{
              
        if (other == this) {
            return true;
        }
        if (other instanceof MethodExpressionMethodBindingAdapter) {
            MethodBinding ob = ((MethodExpressionMethodBindingAdapter) other).getWrapped();
            return (binding.equals(ob));
        } else if (other instanceof MethodExpression) {
            MethodExpression expression = (MethodExpression) other;
            // We'll need to do a little leg work to determine
            // if the MethodBinding is equivalent to the 
            // wrapped MethodExpression
            String expr = binding.getExpressionString();
            int idx = expr.indexOf('.');
            String target = expr.substring(0, idx).substring(2);
            String t = expr.substring(idx + 1);
            String method = t.substring(0, (t.length() - 1));
            FacesContext context = FacesContext.getCurrentInstance();
            ELContext elContext = context.getELContext();
            MethodInfo controlInfo = expression.getMethodInfo(elContext);
            // ensure the method names are the same
            if (!controlInfo.getName().equals(method)) {
                return false;
            }
            // Using the target, create an expression and evaluate
            // it.           
            ExpressionFactory factory = context.getApplication().getExpressionFactory();
            ValueExpression ve = factory.createValueExpression(elContext,
                                                               "#{" + target + '}',
                                                               Object.class);
            if (ve == null) {
                return false;
            }                
            Object result = ve.getValue(elContext);
            if (result == null) {
                return false;
            }
            // Get all of the methods with the matching name and try
            // to find a match based on controlInfo's return and parameter
            // types
            Method[] methods = result.getClass().getMethods();
            for (Method meth : methods) {
                if (meth.getName().equals(method)
                     && meth.getReturnType().equals(controlInfo.getReturnType())
                     && Arrays.equals(meth.getParameterTypes(), 
                                      controlInfo.getParamTypes())) {
                    return true;                      
                }
            }
        }
        return false;
}

 public String getDelimiterSyntax() 
{
       // PENDING (visvan) Implementation
        return "";
}

 public String getExpressionString() 
{
	assert(null != binding);
	return binding.getExpressionString();
}

 public MethodInfo getMethodInfo(ELContext context) throws ELException 
{
	assert(null != binding);
	if (context == null) {
	    throw new NullPointerException("ELContext - > null");
    }
	if (null == info) {
	    FacesContext facesContext = (FacesContext) 
		context.getContext(FacesContext.class);
	    if (null != facesContext) {
		try {
		    //PENDING - we should find a way to provide more information
		    info = new MethodInfo(null, binding.getType(facesContext), null);
		}
		catch (Exception e) {
		    throw new ELException(e);
		}
	    }
	}
	return info;
}

 public MethodBinding getWrapped() 
{
	return binding;
}

 public int hashCode() 
{
	assert(null != binding);
	return binding.hashCode();
}

 public Object invoke(ELContext context,
    Object[] params) throws ELException 
{
	assert(null != binding);
	if (context == null) {
	    throw new NullPointerException("ELContext - > null");
    }
	Object result = null;
	FacesContext facesContext = (FacesContext) 
	    context.getContext(FacesContext.class);
	if (null != facesContext) {
	    try {
		result = binding.invoke(facesContext, params);
	    }
	    catch (Exception e) {
		throw new ELException(e);
	    }
	}
	return result;
}

 public boolean isLiteralText() 
{
        assert (binding != null);
        String expr = binding.getExpressionString();
        return (!(expr.startsWith("#{")
            && expr.endsWith("}")));
}

 public boolean isTransient() 
{
	return tranzient;
}

 public  void restoreState(FacesContext context,
    Object state) 
{
        if (context == null) {
            throw new NullPointerException();
        }
	// if we have state
	if (null == state) {
	    return;
	}
	if (!(state instanceof MethodBinding)) {
	    Object [] stateStruct = (Object []) state;
	    Object savedState = stateStruct[0];
	    String className = stateStruct[1].toString();
	    MethodBinding result = null;
	    Class toRestoreClass = null;
	    if (null != className) {
		try {
		    toRestoreClass = loadClass(className, this);
		}
		catch (ClassNotFoundException e) {
		    throw new IllegalStateException(e.getMessage());
		}
		if (null != toRestoreClass) {
		    try {
			result = 
			    (MethodBinding) toRestoreClass.newInstance();
		    }
		    catch (InstantiationException e) {
			throw new IllegalStateException(e.getMessage());
		    }
		    catch (IllegalAccessException a) {
			throw new IllegalStateException(a.getMessage());
		    }
		}
		if (null != result && null != savedState) {
		    // don't need to check transient, since that was
		    // done on the saving side.
		    ((StateHolder)result).restoreState(context, savedState);
		}
		binding = result;
	    }
	}
	else {
	    binding = (MethodBinding) state;
	}
}

 public Object saveState(FacesContext context) 
{
        if (context == null) {
            throw new NullPointerException();
        }
	Object result = null;
	if (!tranzient) {
	    if (binding instanceof StateHolder) {
		Object [] stateStruct = new Object[2];
		// save the actual state of our wrapped binding
		stateStruct[0] = ((StateHolder)binding).saveState(context);
		// save the class name of the binding impl
		stateStruct[1] = binding.getClass().getName();
		result = stateStruct;
	    }
	    else {
		result = binding;
	    }
	}
	return result;
}

 public  void setTransient(boolean newTransientMethod) 
{
	tranzient = newTransientMethod;
}