Fix #180: add ProtobufGenerator.canWriteBinaryNatively()

Author: cowtowncoder

protobuf/src/main/java/com/fasterxml/jackson/dataformat/protobuf/ProtobufGenerator.java

@@ -175,6 +175,22 @@ public Version version() {
         return PackageVersion.VERSION;
     }
 
+    /*
+    /**********************************************************
+    /* Capability introspection
+    /**********************************************************
+     */
+
+    @Override // since 2.10
+    public boolean canWriteBinaryNatively() {
+        return true;
+    }
+
+    @Override
+    public boolean canUseSchema(FormatSchema schema) {
+        return (schema instanceof ProtobufSchema);
+    }
+
     /*
     /**********************************************************
     /* Overridden methods, configuration
@@ -211,11 +227,6 @@ public int getOutputBuffered() {
         return -1;
     }
 
-    @Override
-    public boolean canUseSchema(FormatSchema schema) {
-        return (schema instanceof ProtobufSchema);
-    }
-
     @Override public ProtobufSchema getSchema() {
         return _schema;
     }

release-notes/VERSION-2.x

@@ -14,6 +14,7 @@ Project: jackson-datatypes-binaryModules:
  (suggested by MrThreepwood@github)
 #178: Fix issue wit input offsets when parsing CBOR from `InputStream`
  (reported by iziamos@github)
+#180: Add `ProtobufGenerator.canWriteBinaryNatively()` to support binary writes
 
 2.10.0.pr2 (31-Aug-2019)