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This commit is contained in:
Mark Fisher
2011-10-21 16:00:11 -04:00
parent 9435217578
commit 0b8efc45bc
1 changed files with 4 additions and 4 deletions
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8
docs/src/reference/docbook/gateway.xml
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@@ -150,19 +150,19 @@ public interface Cafe {
<section id="gateway-calling-no-argument-methods">
<title>Invoking No-Argument Methods</title>
<para>
When invoking methods on a Gateway interface that does not have any arguments,
When invoking methods on a Gateway interface that do not have any arguments,
the default behavior is to <emphasis>receive</emphasis> a <code>Message</code> from a
<interfacename>PollableChannel</interfacename>.
</para>
<para>
At times however, you may want to trigger no-arguments methods so that
you can in-fact interact with other components downstream that do not require
At times however, you may want to trigger no-argument methods so that
you can in fact interact with other components downstream that do not require
user-provided parameters, e.g. triggering no-argument SQL calls or Stored
Procedures.
</para>
<para>
In order to achieve <emphasis>send-and-receive</emphasis> semantics, you must provide a payload.
In order to generate a payloads method parameters on the interface are
In order to generate a payload, method parameters on the interface are
not necessary. You can either use the <code>@Payload</code> annotation
or the <code>payload-expression</code> attribute in XML on the <code>method</code>
sub-element. Below please find a few examples of what the payloads could be: