Remove unusual visitor method

Author: jeffgbutler

src/main/java/org/mybatis/dynamic/sql/insert/render/BatchInsertRenderer.java

@@ -32,7 +32,7 @@ private BatchInsertRenderer(Builder<T> builder) {
 
     public BatchInsert<T> render() {
         FieldAndValueCollector collector = model.columnMappings()
-                .map(visitor::renderMapping)
+                .map(m -> m.accept(visitor))
                 .collect(FieldAndValueCollector.collect());
 
         String insertStatement = InsertRenderingUtilities.calculateInsertStatement(model.table(), collector);

src/main/java/org/mybatis/dynamic/sql/insert/render/GeneralInsertRenderer.java

@@ -39,7 +39,7 @@ private GeneralInsertRenderer(Builder builder) {
 
     public GeneralInsertStatementProvider render() {
         FieldAndValueCollector collector = model.columnMappings()
-                .map(visitor::renderMapping)
+                .map(m -> m.accept(visitor))
                 .filter(Optional::isPresent)
                 .map(Optional::get)
                 .collect(FieldAndValueCollector.collect());

src/main/java/org/mybatis/dynamic/sql/insert/render/InsertRenderer.java

@@ -34,7 +34,7 @@ private InsertRenderer(Builder<T> builder) {
 
     public InsertStatementProvider<T> render() {
         FieldAndValueCollector collector = model.columnMappings()
-                .map(visitor::renderMapping)
+                .map(m -> m.accept(visitor))
                 .filter(Optional::isPresent)
                 .map(Optional::get)
                 .collect(FieldAndValueCollector.collect());

src/main/java/org/mybatis/dynamic/sql/insert/render/MultiRowInsertRenderer.java

@@ -35,7 +35,7 @@ private MultiRowInsertRenderer(Builder<T> builder) {
 
     public MultiRowInsertStatementProvider<T> render() {
         FieldAndValueCollector collector = model.columnMappings()
-                .map(visitor::renderMapping)
+                .map(m -> m.accept(visitor))
                 .collect(FieldAndValueCollector.collect());
 
         String insertStatement = calculateInsertStatement(collector);

src/main/java/org/mybatis/dynamic/sql/update/render/UpdateRenderer.java

@@ -78,7 +78,7 @@ private FragmentAndParameters calculateUpdateStatementStart() {
 
     private FragmentAndParameters calculateSetPhrase() {
         List<Optional<FragmentAndParameters>> fragmentsAndParameters = updateModel.columnMappings()
-                        .map(visitor::renderMapping)
+                        .map(m -> m.accept(visitor))
                         .collect(Collectors.toList());
 
         Validator.assertFalse(fragmentsAndParameters.stream().noneMatch(Optional::isPresent),

src/main/java/org/mybatis/dynamic/sql/util/ColumnMappingVisitor.java

@@ -21,7 +21,7 @@
  * may or may not be supported. For example, it makes no sense to map a column to another column in
  * an insert - so the ColumnToColumnMapping is only supported on update statements.
  *
- * <p>Rather than implement this interface directly, we recommend implementing one of the derived
+ * <p>Rather than implement this interface directly, we recommend extending one of the derived
  * classes. The derived classes encapsulate the rules about which mappings are applicable to the
  * different types of statements.
  *
@@ -31,10 +31,6 @@
  *            The type of object created by the visitor
  */
 public interface ColumnMappingVisitor<R> {
-    default R renderMapping(AbstractColumnMapping mapping) {
-        return mapping.accept(this);
-    }
-
     R visit(NullMapping mapping);
 
     R visit(ConstantMapping mapping);