org.apache.struts.dispatcher.MethodResolver Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
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package org.apache.struts.dispatcher;
import org.apache.struts.chain.contexts.ActionContext;
import java.lang.reflect.Method;
/**
* This interface defines a pluggable strategy for resolving a method and
* extracting its methods from an {@link ActionContext}. A {@link Dispatcher}
* may use the resolver to separate out its method resolution based on
* technology (such as servlets, portlets, etc.).
*
* @version $Rev$
* @since Struts 1.4
*/
public interface MethodResolver {
/**
* Constructs the arguments that will be passed to the dispatched method.
*
* @param context the current action context
* @param method the target method of this dispatch
*
* @return the arguments array for the method, or null if the
* method does not match any supported signatures
* @see #resolveMethod(ActionContext, String)
*/
Object[] buildArguments(ActionContext context, Method method);
/**
* Decides the appropriate method instance for the specified method name.
* Implementations may introspect for any desired method signature.
*
* @param context the current action context
* @param methodName the method name to use for introspection
* @return the method to invoke
* @throws NoSuchMethodException if an appropriate method cannot be found
*/
Method resolveMethod(ActionContext context, String methodName) throws NoSuchMethodException;
}