no need to override

Author: hauner

src/main/groovy/com/github/hauner/openapi/spring/model/parameters/CookieParameter.groovy

@@ -27,10 +27,6 @@ class CookieParameter extends Parameter {
         "CookieValue"
     }
 
-    ParameterConstraints getConstraints() {
-        null
-    }
-
     boolean withAnnotation () {
         true
     }

src/main/groovy/com/github/hauner/openapi/spring/model/parameters/HeaderParameter.groovy

@@ -27,10 +27,6 @@ class HeaderParameter extends Parameter {
         "RequestHeader"
     }
 
-    ParameterConstraints getConstraints() {
-        null
-    }
-
     boolean withAnnotation () {
         true
     }

src/main/groovy/com/github/hauner/openapi/spring/model/parameters/Parameter.groovy

@@ -68,8 +68,8 @@ abstract class Parameter {
      *
      * @return the constraint details or null if the parameter has no constraints
      */
-    ParameterConstraints getConstraints () {
-        null
+    ParameterConstraints getConstraints() {
+        new ParameterConstraints(constraints: dataType.constraints)
     }
 
     /**

src/main/groovy/com/github/hauner/openapi/spring/model/parameters/PathParameter.groovy

@@ -27,10 +27,6 @@ class PathParameter extends Parameter {
         "PathVariable"
     }
 
-    ParameterConstraints getConstraints() {
-        null
-    }
-
     boolean withAnnotation () {
         true
     }

src/main/groovy/com/github/hauner/openapi/spring/model/parameters/QueryParameter.groovy

@@ -39,10 +39,6 @@ class QueryParameter extends Parameter {
         this.@required
     }
 
-    ParameterConstraints getConstraints() {
-        new ParameterConstraints(constraints: dataType.constraints)
-    }
-
     /**
      * If the query parameter is mapped to a pojo object it should not have a {@code @RequestParam}
      * annotation.