support for binding descriptors per channel name

spring-cloud-stream-samples/double/src/main/resources/sink.yml

@@ -1,5 +1,6 @@
 spring:
   cloud:
     stream:
-      inputChannelName: testtock
+      bindings:
+        input: testtock
   

spring-cloud-stream-samples/double/src/main/resources/source.yml

@@ -2,5 +2,6 @@ fixedDelay: 5000
 spring:
   cloud:
     stream:
-      outputChannelName: testtock
+      bindings:
+        output: testtock
   

spring-cloud-stream-samples/sink/src/main/resources/application.yml

@@ -3,9 +3,10 @@ server:
 spring:
   cloud:
     stream:
-      inputChannelName: testtock
-      # uncomment below to have this module consume from a specific partition
-      # in the range of 0 to N-1, where N is the upstream module's partitionCount
-      #consumerProperties:
-      #  partitionIndex: 1
+      bindings:
+        input: testtock
+        # uncomment below to have this module consume from a specific partition
+        # in the range of 0 to N-1, where N is the upstream module's partitionCount
+        #consumerProperties:
+        #  partitionIndex: 1
   

spring-cloud-stream-samples/source/src/main/resources/application.yml

@@ -4,17 +4,19 @@ fixedDelay: 5000
 spring:
   cloud:
     stream:
-      outputChannelName: testtock
-      # uncomment below to use the last digit of the seconds as a partition key
-      # hashcode(key) % N is then applied with N being the partitionCount value
-      # thus, even seconds should go to the 0 queue, odd seconds to the 1 queue
-      #producerProperties:
-      #  partitionKeyExpression: payload.charAt(payload.length()-1)
-      #  partitionCount: 2
+      bindings:
+        output: testtock
+        # uncomment below to use the last digit of the seconds as a partition key
+        # hashcode(key) % N is then applied with N being the partitionCount value
+        # thus, even seconds should go to the 0 queue, odd seconds to the 1 queue
+        #producerProperties:
+        #  partitionKeyExpression: payload.charAt(payload.length()-1)
+        #  partitionCount: 2
 
 ---
 spring:
   profiles: extended
   cloud:
     stream:
-      outputChannelName: xformed
+      bindings:
+        output: xformed

spring-cloud-stream-samples/transform/src/main/resources/application.yml

@@ -3,6 +3,7 @@ server:
 spring:
   cloud:
     stream:
-      outputChannelName: xformed
-      inputChannelName: testtock
+      bindings:
+        output: xformed
+        input: testtock