Examples of InvocationChain

org.apache.tuscany.sca.invocation.InvocationChain
A wire consists of 1..n invocation chains associated with the operations of its source service contract.
Invocation chains may contain Interceptors that process invocations.
A Message is used to pass data associated with an invocation through the chain. @version $Rev: 632064 $ $Date: 2008-02-28 17:18:51 +0000 (Thu, 28 Feb 2008) $
org.apache.tuscany.spi.wire.InvocationChain
An inbound or outbound invocation pipeline for a service operation. Wires consist of 1..n invocation chains associated with the operations of the service contract the wire represents. Invocation chains are associated with the outbound or inbound side of a wire are bridged or "connected" when an assembly is processed. Outbound chains are only connected to inbound chains and vice versa.
Invocation chains contain at least one {@link Interceptor} that process invocations in an around-style manner. Insome scenarios, a service proxy may only contain inbound invocation chains, for example, when a service is resolved through a locate operation by a non-component client. In this case, there will be no outbound invocation chains and the target invoker will be held by the target-side and passed down the pipeline.
A {@link Message} is used to pass data associated with an invocation through the chain. Messages containa {@link TargetInvoker} responsible for dispatching to a target instance and may be cached on the source-side.Caching allows various optimizations such as avoiding target instance resolution when the client-side lifecycle scope is a shorter duration than the target. @version $Rev: 441749 $ $Date: 2006-09-08 23:55:02 -0700 (Fri, 08 Sep 2006) $

Examples of org.apache.tuscany.sca.invocation.InvocationChain

            return invokeObjectMethod(method, args);
        }
        if (wire == null) {
            throw new ServiceRuntimeException("No runtime wire is available");
        }
        InvocationChain chain = getInvocationChain(method, wire);
        if (chain == null) {
            throw new IllegalArgumentException("No matching operation is found: " + method);
        }


        // send the invocation down the wire

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Examples of org.apache.tuscany.spi.wire.InvocationChain

        return axisService;
    }


    public Object invokeTarget(org.apache.tuscany.spi.model.Operation<?> op, Object[] args)
        throws InvocationTargetException {
        InvocationChain chain = inboundWire.getInvocationChains().get(op);
        Interceptor headInterceptor = chain.getHeadInterceptor();
        if (headInterceptor == null) {
            try {
                // short-circuit the dispatch and invoke the target directly
                if (chain.getTargetInvoker() == null) {
                    throw new AssertionError("No target invoker [" + chain.getOperation().getName() + "]");
                }
                return chain.getTargetInvoker().invokeTarget(args);
            } catch (InvocationTargetException e) {
                // the cause was thrown by the target so throw it
                throw e;
            }
        } else {
            Object messageId = workContext.getCurrentMessageId();
            workContext.setCurrentMessageId(null);
            Object correlationId = workContext.getCurrentCorrelationId();
            workContext.setCurrentCorrelationId(null);


            Message msg = new MessageImpl();
            msg.setTargetInvoker(chain.getTargetInvoker());
            msg.setFromAddress(getFromAddress());
            if (messageId == null) {
                messageId = new MessageId();
            }
            msg.setMessageId(messageId);

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