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/*
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package com.sun.ejb.containers.interceptors;
import java.lang.reflect.Method;
import java.util.Arrays;
/**
* @author Mahesh Kannan
* Date: Mar 10, 2008
*/
class CallbackChainImpl {
protected CallbackInterceptor[] interceptors;
protected int size;
private Method method = null;
CallbackChainImpl(CallbackInterceptor[] interceptors) {
this.interceptors = interceptors;
this.size = (interceptors == null) ? 0 : interceptors.length;
// set invocation method if there is one on the bean class
if (size > 0 && interceptors[size-1].isBeanCallback()) {
method = interceptors[size-1].method;
}
}
public Object invokeNext(int index, CallbackInvocationContext invContext)
throws Throwable {
invContext.method = method;
Object result = null;
if (index < size) {
result = interceptors[index].intercept(invContext);
} else {
invContext.invokeSpecial();
}
return result;
}
public String toString() {
StringBuilder bldr = new StringBuilder("CallbackInterceptorChainImpl");
for (CallbackInterceptor inter : interceptors) {
bldr.append("\n\t\t").append(inter);
}
return bldr.toString();
}
/**
* Prepend an interceptor to an existing callback chain.
* @param interceptor
*/
public void prependInterceptor(CallbackInterceptor interceptor) {
size++;
CallbackInterceptor[] newArray = new CallbackInterceptor[size];
newArray[0] = interceptor;
for(int i = 1; i < size; i++) {
newArray[i] = interceptors[i - 1];
}
interceptors = newArray;
}
}