YANG: Restriction resolution implementation

Change-Id: I69503e8229def07b289a0c8c762bfe0ae5530232
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangStringRestriction.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangStringRestriction.java
index f2c67c3..715e315 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangStringRestriction.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangStringRestriction.java
@@ -24,6 +24,7 @@
  * A string can be restricted with the "length" and "pattern" statements.
  *
  */
+
 /**
  * Represents the restriction for string data type.
  */
@@ -113,7 +114,7 @@
      *
      * @param patternRestriction pattern restriction for the type
      */
-    private void setPatternRestriction(YangPatternRestriction patternRestriction) {
+    public void setPatternRestriction(YangPatternRestriction patternRestriction) {
         this.patternRestriction = patternRestriction;
     }