Add JdbcMapper.WarnOnUnusedParams annotation

common/src/main/java/com/moparisthebest/jdbc/codegen/JdbcMapper.java

@@ -50,6 +50,13 @@ public interface JdbcMapper extends Closeable {
 		String arrayStringTypeName() default "";
 	}
 
+	@Retention(RetentionPolicy.SOURCE)
+	@Target({ElementType.METHOD})
+	/**
+	 * Instead of a compile-time error this will only warn on unused params, mainly for debugging or presenting an unfinished API
+	 */
+	public @interface WarnOnUnusedParams {}
+
 	@Retention(RetentionPolicy.SOURCE)
 	@Target({ElementType.METHOD})
 	public @interface SQL {

jdbcmapper/src/main/java/com/moparisthebest/jdbc/codegen/JdbcMapperProcessor.java

@@ -205,6 +205,7 @@ public class JdbcMapperProcessor extends AbstractProcessor {
 									lookupCloseMethod = false;
 									continue; // skip close method
 								}
+							final JdbcMapper.WarnOnUnusedParams warnOnUnusedParams = eeMethod.getAnnotation(JdbcMapper.WarnOnUnusedParams.class);
 							final JdbcMapper.SQL sql = eeMethod.getAnnotation(JdbcMapper.SQL.class);
 							if (sql == null || sql.value().isEmpty()) {
 								processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "@JdbcMapper.SQL with non-empty query is required on abstract or interface methods", methodElement);
@@ -318,7 +319,7 @@ public class JdbcMapperProcessor extends AbstractProcessor {
 									} else if(isPrimitiveInteger(unusedType.getKind()) && maxRows == null && this.allowedMaxRowParamNames.contains(unusedParam.getKey())) {
 										maxRows = CompileTimeResultSetMapper.MaxRows.getMaxRows(unusedParam.getKey(), unusedType.toString());
 									} else
-										processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, String.format("@JdbcMapper.SQL method has unused parameter '%s'", unusedParam.getKey()), unusedParam.getValue());
+										processingEnv.getMessager().printMessage(warnOnUnusedParams != null ? Diagnostic.Kind.MANDATORY_WARNING : Diagnostic.Kind.ERROR, String.format("@JdbcMapper.SQL method has unused parameter '%s'", unusedParam.getKey()), unusedParam.getValue());
 								}
 							}
 

jdbcmapper/src/test/java/com/moparisthebest/jdbc/codegen/PersonDAO.java

@@ -51,6 +51,10 @@ public interface PersonDAO extends JdbcMapper {
 	@JdbcMapper.SQL("SELECT person_no FROM person WHERE last_name = {lastName}")
 	long getPersonNo(String lastName) throws SQLException;
 
+	@JdbcMapper.WarnOnUnusedParams
+	@JdbcMapper.SQL("SELECT person_no FROM person WHERE last_name = {lastName}")
+	long getPersonNoUnusedParam(String lastName, String unused) throws SQLException;
+
 	@JdbcMapper.SQL("SELECT first_name, last_name FROM person WHERE last_name = {lastName}")
 	ResultSet getPeopleResultSet(String lastName) throws SQLException;
 

presto-sqlparser/src/test/java/com/moparisthebest/jdbc/codegen/PrestoPersonDAO.java

@@ -51,6 +51,10 @@ public interface PrestoPersonDAO extends PersonDAO {
 	@JdbcMapper.SQL("SELECT person_no FROM person WHERE last_name = {lastName}")
 	long getPersonNo(String lastName) throws SQLException;
 
+	@JdbcMapper.WarnOnUnusedParams
+	@JdbcMapper.SQL("SELECT person_no FROM person WHERE last_name = {lastName}")
+	long getPersonNoUnusedParam(String lastName, String unused) throws SQLException;
+
 	@JdbcMapper.SQL("SELECT first_name, last_name FROM person WHERE last_name = {lastName}")
 	ResultSet getPeopleResultSet(String lastName) throws SQLException;