net.officefloor.plugin.value.retriever

Interface ValueRetriever<T>

All Known Implementing Classes:

PropertyValueRetrieverImpl, RootValueRetrieverImpl

public interface ValueRetriever<T>

Retrieves a value from an object graph.

Author:

Daniel Sagenschneider

Method Summary

Modifier and Type	Method and Description
Method	getTypeMethod(String name) Obtains the Method getter on the object graph that will provide the value.
Object	retrieveValue(T object, String name) Retrieves the value from the object graph.

Method Detail

retrieveValue

Object retrieveValue(T object,
                     String name)
              throws Exception

Retrieves the value from the object graph.

Parameters:

object - Root object of the object graph.

name - Property name.

Returns:

Property value.

Throws:

Exception - If fails to retrieve the value.

getTypeMethod

Method getTypeMethod(String name)
              throws Exception

Obtains the Method getter on the object graph that will provide the value.

This is the Method on the last bean in the path. It may be null indicating the path does not exist on the bean graph.

Parameters:

name - Property name.

Returns:

Method of the object graph that provides the corresponding getter for the property name. May be null if the path not exists.

Throws:

Exception - If fails to determine if value is retrievable.