Added 'broadcaster' property to Message.

spring-integration-core/src/main/java/org/springframework/integration/channel/MessageChannel.java

@@ -35,6 +35,13 @@ public interface MessageChannel {
 	 */
 	String getName();
 
+	/**
+	 * Return whether this channel has been designated as a broadcaster. If so,
+	 * any dispatcher retrieving messages from this channel should send each
+	 * message to each of its receivers.
+	 */
+	boolean isBroadcaster();
+
 	/**
 	 * Send a message, blocking indefinitely if necessary.
 	 * 

spring-integration-core/src/main/java/org/springframework/integration/channel/SimpleChannel.java

@@ -36,8 +36,11 @@ public class SimpleChannel implements MessageChannel, BeanNameAware {
 
 	private String name;
 
+	private boolean broadcaster = false;
+
 	private BlockingQueue<Message<?>> queue;
 
+
 	/**
 	 * Create a channel with the specified queue capacity.
 	 */
@@ -67,6 +70,14 @@ public class SimpleChannel implements MessageChannel, BeanNameAware {
 		return this.name;
 	}
 
+	public boolean isBroadcaster() {
+		return this.broadcaster;
+	}
+
+	public void setBroadcaster(boolean broadcaster) {
+		this.broadcaster = broadcaster;
+	}
+
 	/**
 	 * Set the name of this channel to its bean name. This will be invoked
 	 * automatically whenever the channel is configured explicitly with a bean