Add support for returning ResultSet to jdbcmapper

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

@@ -132,7 +132,10 @@ public class CompileTimeResultSetMapper {
 			return false;
 		}
 		//IFJAVA8_END
-		else {
+		else if(types.isAssignable(returnTypeMirror, resultSetType)) {
+			toResultSet(w, closePs);
+			return false;
+		} else {
 			toObject(w, keys, returnTypeMirror, cal, cleaner, reflectionFields);
 		}
 		return true;
@@ -154,6 +157,15 @@ public class CompileTimeResultSetMapper {
 		getRowMapper(keys, returnTypeMirror, resultSetName, cal, null, null, reflectionFields).gen(w, returnTypeMirror.toString());
 	}
 
+	private void toResultSet(final Writer w, final boolean closePs) throws IOException {
+		w.append("\t\t\treturn ");
+		if(closePs)
+			w.append("new com.moparisthebest.jdbc.StatementClosingResultSet(rs, ps)");
+		else
+			w.append("rs");
+		w.append(";\n");
+	}
+
 	public void toObject(final Writer w, final String[] keys, final TypeMirror returnTypeMirror, final String cal, final String cleaner, final ReflectionFields reflectionFields) throws IOException, ClassNotFoundException {
 		w.write("\t\t\tif(rs.next()) {\n");
 		writeObject(w, keys, returnTypeMirror, cal, reflectionFields);

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

@@ -8,6 +8,7 @@ import com.moparisthebest.jdbc.dto.Person;
 import com.moparisthebest.jdbc.util.ResultSetIterable;
 
 import java.io.Closeable;
+import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Time;
 import java.sql.Timestamp;
@@ -29,6 +30,12 @@ import java.time.*;
 )
 public interface PersonDAO extends Closeable {
 
+	@JdbcMapper.SQL("CREATE TABLE person (person_no NUMERIC, first_name VARCHAR(40), last_name VARCHAR(40), birth_date TIMESTAMP)")
+	void createTablePerson();
+
+	@JdbcMapper.SQL("INSERT INTO person (person_no, birth_date, last_name, first_name) VALUES ({personNo}, {birthDate}, {firstName}, {lastName})")
+	int insertPerson(long personNo, Date birthDate, String firstName, String lastName);
+
 	@JdbcMapper.SQL("UPDATE person SET first_name = {firstName} WHERE last_name = {lastName}")
 	int setFirstName(String firstName, String lastName);
 
@@ -41,6 +48,12 @@ public interface PersonDAO extends Closeable {
 	@JdbcMapper.SQL("UPDATE person SET first_name = {firstName} WHERE person_no = {personNo}")
 	void setFirstNameBlob(@JdbcMapper.Blob String firstName, long personNo) throws SQLException;
 
+	@JdbcMapper.SQL("SELECT first_name, last_name FROM person WHERE last_name = {lastName}")
+	ResultSet getPeopleResultSet(String lastName) throws SQLException;
+
+	@JdbcMapper.SQL(value = "SELECT first_name, last_name FROM person WHERE last_name = {lastName}", cachePreparedStatement = JdbcMapper.OptionalBool.TRUE)
+	ResultSet getPeopleResultSetCached(String lastName) throws SQLException;
+
 	@JdbcMapper.SQL("SELECT first_name FROM person WHERE person_no = {personNo}")
 	String getFirstName(long personNo) throws SQLException;