From 48c53ef278889d0413e2aa82ed7f4fe365b98894 Mon Sep 17 00:00:00 2001
From: Soby Chacko <schacko@pivotal.io>
Date: Tue, 14 Feb 2017 10:42:01 -0500
Subject: [PATCH] Making ProvisioningProvider protected; Javadocs

Fixes #803

Making ProvisioningProvider use a generic type so that subclasses don't have to cast
---
 .../stream/binder/AbstractMessageChannelBinder.java      | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java b/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java
index 977c47e05..067f44b2f 100644
--- a/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java
+++ b/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java
@@ -53,7 +53,7 @@ import org.springframework.util.MimeType;
  * @author Soby Chacko
  * @since 1.1
  */
-public abstract class AbstractMessageChannelBinder<C extends ConsumerProperties, P extends ProducerProperties>
+public abstract class AbstractMessageChannelBinder<C extends ConsumerProperties, P extends ProducerProperties, PP extends ProvisioningProvider<C, P>>
 		extends AbstractBinder<MessageChannel, C, P> {
 
 	protected static final ExpressionParser EXPRESSION_PARSER = new SpelExpressionParser();
@@ -74,10 +74,13 @@ public abstract class AbstractMessageChannelBinder<C extends ConsumerProperties,
 	 */
 	private final String[] headersToEmbed;
 
-	private final ProvisioningProvider<C, P> provisioningProvider;
+	/**
+	 * {@link ProvisioningProvider} delegated by the downstream binder implementations.
+	 */
+	protected final PP provisioningProvider;
 
 	public AbstractMessageChannelBinder(boolean supportsHeadersNatively, String[] headersToEmbed,
-										ProvisioningProvider<C, P> provisioningProvider) {
+										PP provisioningProvider) {
 		this.supportsHeadersNatively = supportsHeadersNatively;
 		this.headersToEmbed = headersToEmbed;
 		this.provisioningProvider = provisioningProvider;