[WIP] Move read methods to binary-impl

modules/binary/api/src/main/java/org/apache/ignite/internal/binary/BinariesFactory.java

@@ -21,6 +21,7 @@
 import java.util.Map;
 import java.util.function.ToIntFunction;
 import org.apache.ignite.binary.BinaryObject;
+import org.apache.ignite.binary.BinaryObjectException;
 import org.apache.ignite.internal.binary.streams.BinaryInputStream;
 import org.apache.ignite.internal.binary.streams.BinaryOutputStream;
 import org.apache.ignite.internal.processors.cache.CacheObjectValueContext;
@@ -72,6 +73,18 @@ public BinaryReaderEx reader(BinaryContext ctx,
                                  boolean skipHdrCheck,
                                  boolean forUnmarshal);
 
+    /**
+     * Unmarshals object from the input stream without deserialization of user types.
+     *
+     * @param in Input stream.
+     * @param ctx Context.
+     * @param ldr Class loader.
+     * @return Unmarshalled object.
+     * @throws BinaryObjectException In case of error.
+     */
+    @Nullable public Object unmarshal(BinaryInputStream in, BinaryContext ctx, @Nullable ClassLoader ldr)
+        throws BinaryObjectException;
+
     /**
      * @param ctx Context.
      * @param failIfUnregistered Flag to fail while writing object of unregistered type.

modules/binary/api/src/main/java/org/apache/ignite/internal/binary/BinaryReaderEx.java

@@ -27,7 +27,7 @@
 /**
  * Extended reader interface.
  */
-public interface BinaryReaderEx extends BinaryReader, BinaryRawReader, BinaryReaderHandlesHolder, ObjectInput {
+public interface BinaryReaderEx extends BinaryReader, BinaryRawReader, ObjectInput {
     /**
      * @return Object.
      * @throws org.apache.ignite.binary.BinaryObjectException In case of error.