- Fix MDEV-11267. Insert NULL into JDBC table does not work.

  Fixed in JDBConn::SetParam and adding java function SetNullParm.
  modified:   storage/connect/jdbconn.cpp
  modified:   storage/connect/JdbcInterface.java
  modified:   storage/connect/mysql-test/connect/disabled.def
  modified:   storage/connect/mysql-test/connect/r/jdbc_new.result
  modified:   storage/connect/mysql-test/connect/std_data/JdbcMariaDB.jar

- MDEV-11067 suggested to add configuration support to the Apache wrapper.
  Uncommented out to test if it works.
  modified:   storage/connect/CMakeLists.txt
  added:      storage/connect/ApacheInterface.class
  added:      storage/connect/JdbcInterface.class
  added:      storage/connect/MariadbInterface.class
  added:      storage/connect/MysqlInterface.class
  added:      storage/connect/OracleInterface.class
  added:      storage/connect/PostgresqlInterface.class

storage/connect/CMakeLists.txt

@@ -20,25 +20,25 @@ SET(CONNECT_SOURCES
 ha_connect.cc connect.cc user_connect.cc mycat.cc
 fmdlex.c osutil.c plugutil.c rcmsg.c rcmsg.h
 array.cpp blkfil.cpp colblk.cpp csort.cpp
-filamap.cpp filamdbf.cpp filamfix.cpp filamtxt.cpp filamvct.cpp filamzip.cpp
+filamap.cpp filamdbf.cpp filamfix.cpp filamtxt.cpp filamzip.cpp
 filter.cpp json.cpp jsonudf.cpp maputil.cpp myconn.cpp myutil.cpp plgdbutl.cpp
 reldef.cpp tabcol.cpp tabdos.cpp tabfix.cpp tabfmt.cpp tabjson.cpp table.cpp
 tabmul.cpp tabmysql.cpp taboccur.cpp tabpivot.cpp tabsys.cpp tabtbl.cpp tabutil.cpp
-tabvct.cpp tabvir.cpp tabxcl.cpp valblk.cpp value.cpp xindex.cpp xobject.cpp
+tabvir.cpp tabxcl.cpp valblk.cpp value.cpp xindex.cpp xobject.cpp
 
 array.h blkfil.h block.h catalog.h checklvl.h colblk.h connect.h csort.h
-engmsg.h filamap.h filamdbf.h filamfix.h filamtxt.h filamvct.h filamzip.h
+engmsg.h filamap.h filamdbf.h filamfix.h filamtxt.h filamzip.h
 filter.h global.h ha_connect.h inihandl.h json.h jsonudf.h maputil.h msgid.h
 mycat.h myconn.h myutil.h os.h osutil.h plgcnx.h plgdbsem.h preparse.h reldef.h
 resource.h tabcol.h tabdos.h tabfix.h tabfmt.h tabjson.h tabmul.h tabmysql.h
-taboccur.h tabpivot.h tabsys.h tabtbl.h tabutil.h tabvct.h tabvir.h tabxcl.h
+taboccur.h tabpivot.h tabsys.h tabtbl.h tabutil.h tabvir.h tabxcl.h
 user_connect.h valblk.h value.h xindex.h xobject.h xtable.h)
 
 #
 # Definitions that are shared for all OSes
 #
 add_definitions( -DMARIADB -DFORCE_INIT_OF_VARS -Dconnect_EXPORTS)
-add_definitions( -DHUGE_SUPPORT -DZIP_SUPPORT -DPIVOT_SUPPORT -DVCT_SUPPORT )
+add_definitions( -DHUGE_SUPPORT -DZIP_SUPPORT -DPIVOT_SUPPORT )
 
 
 #
@@ -89,6 +89,18 @@ ELSE(NOT UNIX)
 ENDIF(UNIX)
 
 
+#
+# VCT: the VEC format might be not supported in future versions
+#
+
+OPTION(CONNECT_WITH_VCT "Compile CONNECT storage engine with VCT support" ON)
+
+IF(CONNECT_WITH_VCT)
+  SET(CONNECT_SOURCES ${CONNECT_SOURCES} filamvct.cpp tabvct.cpp filamvct.h tabvct.h)
+  add_definitions(-DVCT_SUPPORT)
+ENDIF(CONNECT_WITH_VCT)
+
+
 #
 # XML
 #
@@ -236,9 +248,9 @@ ENDIF(CONNECT_WITH_ODBC)
 # JDBC
 #
 IF(APPLE)
-  OPTION(CONNECT_WITH_JDBC "some comment" OFF)
+  OPTION(CONNECT_WITH_JDBC "Compile CONNECT storage engine without JDBC support" OFF)
 ELSE()
-  OPTION(CONNECT_WITH_JDBC "some comment" ON)
+  OPTION(CONNECT_WITH_JDBC "Compile CONNECT storage engine with JDBC support" ON)
 ENDIF()
 
 IF(CONNECT_WITH_JDBC)
@@ -252,12 +264,18 @@ IF(CONNECT_WITH_JDBC)
     SET(CONNECT_SOURCES ${CONNECT_SOURCES}
     jdbconn.cpp tabjdbc.cpp jdbconn.h tabjdbc.h jdbccat.h
     JdbcInterface.java ApacheInterface.java MariadbInterface.java
-    MysqlInterface.java OracleInterface.java PostgresqlInterface.java)
+    MysqlInterface.java OracleInterface.java PostgresqlInterface.java
+    JdbcInterface.class ApacheInterface.class MariadbInterface.class
+    MysqlInterface.class OracleInterface.class PostgresqlInterface.class)
     # TODO: Find how to compile and install the java wrapper classes
     # Find required libraries and include directories
     SET (JAVA_SOURCES JdbcInterface.java)
     add_jar(JdbcInterface ${JAVA_SOURCES})
 		install_jar(JdbcInterface DESTINATION ${INSTALL_PLUGINDIR} COMPONENT connect-engine)
+    SET (JAVA_CLASSES JdbcInterface.class ApacheInterface.class MariadbInterface.class
+		MysqlInterface.class OracleInterface.class PostgresqlInterface.class)
+    add_jar(JavaWrappers ${JAVA_CLASSES})
+		install_jar(JavaWrappers DESTINATION ${INSTALL_PLUGINDIR} COMPONENT connect-engine)
     add_definitions(-DJDBC_SUPPORT)
   ELSE()
     SET(JDBC_LIBRARY "")

storage/connect/JdbcInterface.java

@@ -220,6 +220,19 @@ public class JdbcInterface {
     	
     } // end of SetTimestampParm
     
+    public int SetNullParm(int i, int typ) {
+    	int rc = 0;
+    	
+    	try {
+    		pstmt.setNull(i, typ);
+    	} catch (Exception e) {
+    		SetErrmsg(e);
+    		rc = -1;
+    	} // end try/catch
+    	
+    	return rc;
+    } // end of SetNullParm
+    
     public int ExecutePrep() {
         int n = -3;
         

storage/connect/jdbconn.cpp

@@ -55,9 +55,8 @@
 
 #if defined(__WIN__)
 extern "C" HINSTANCE s_hModule;           // Saved module handle
-#else   // !__WIN__
+#endif   // __WIN__
 #define nullptr 0
-#endif  // !__WIN__
 
 TYPCONV GetTypeConv();
 int GetConvSize();
@@ -1442,7 +1441,7 @@ bool JDBConn::SetParam(JDBCCOL *colp)
 	PGLOBAL&   g = m_G;
 	bool       rc = false;
 	PVAL       val = colp->GetValue();
-	jint       n, i = (jint)colp->GetRank();
+	jint       n, jrc = 0, i = (jint)colp->GetRank();
 	jshort     s;
 	jlong      lg;
 //jfloat     f;
@@ -1452,69 +1451,74 @@ bool JDBConn::SetParam(JDBCCOL *colp)
 	jstring    jst = nullptr;
 	jmethodID  dtc, setid = nullptr;
 
-	switch (val->GetType()) {
-	case TYPE_STRING:
-		if (gmID(g, setid, "SetStringParm", "(ILjava/lang/String;)V"))
+	if (val->GetNullable() && val->IsNull()) {
+		if (gmID(g, setid, "SetNullParm", "(II)I"))
 			return true;
 
-		jst = env->NewStringUTF(val->GetCharValue());
-		env->CallVoidMethod(job, setid, i, jst);
-		break;
-	case TYPE_INT:
-		if (gmID(g, setid, "SetIntParm", "(II)V"))
-			return true;
-
-		n = (jint)val->GetIntValue();
-		env->CallVoidMethod(job, setid, i, n);
-		break;
-	case TYPE_TINY:
-	case TYPE_SHORT:
-		if (gmID(g, setid, "SetShortParm", "(IS)V"))
-			return true;
+		jrc = env->CallIntMethod(job, setid, i, (jint)GetJDBCType(val->GetType()));
+	} else switch (val->GetType()) {
+		case TYPE_STRING:
+			if (gmID(g, setid, "SetStringParm", "(ILjava/lang/String;)V"))
+				return true;
 
-		s = (jshort)val->GetShortValue();
-		env->CallVoidMethod(job, setid, i, s);
-		break;
-	case TYPE_BIGINT:
-		if (gmID(g, setid, "SetBigintParm", "(IJ)V"))
-			return true;
+			jst = env->NewStringUTF(val->GetCharValue());
+			env->CallVoidMethod(job, setid, i, jst);
+			break;
+		case TYPE_INT:
+			if (gmID(g, setid, "SetIntParm", "(II)V"))
+				return true;
 
-		lg = (jlong)val->GetBigintValue();
-		env->CallVoidMethod(job, setid, i, lg);
-		break;
-	case TYPE_DOUBLE:
-	case TYPE_DECIM:
-		if (gmID(g, setid, "SetDoubleParm", "(ID)V"))
-			return true;
+			n = (jint)val->GetIntValue();
+			env->CallVoidMethod(job, setid, i, n);
+			break;
+		case TYPE_TINY:
+		case TYPE_SHORT:
+			if (gmID(g, setid, "SetShortParm", "(IS)V"))
+				return true;
 
-		d = (jdouble)val->GetFloatValue();
-		env->CallVoidMethod(job, setid, i, d);
-		break;
-	case TYPE_DATE:
-		if ((dat = env->FindClass("java/sql/Timestamp")) == nullptr) {
-			strcpy(g->Message, "Cannot find Timestamp class");
-			return true;
-		} else if (!(dtc = env->GetMethodID(dat, "<init>", "(J)V"))) {
-			strcpy(g->Message, "Cannot find Timestamp class constructor");
-			return true;
-		}	// endif's
+			s = (jshort)val->GetShortValue();
+			env->CallVoidMethod(job, setid, i, s);
+			break;
+		case TYPE_BIGINT:
+			if (gmID(g, setid, "SetBigintParm", "(IJ)V"))
+				return true;
 
-		lg = (jlong)val->GetBigintValue() * 1000;
+			lg = (jlong)val->GetBigintValue();
+			env->CallVoidMethod(job, setid, i, lg);
+			break;
+		case TYPE_DOUBLE:
+		case TYPE_DECIM:
+			if (gmID(g, setid, "SetDoubleParm", "(ID)V"))
+				return true;
 
-		if ((datobj = env->NewObject(dat, dtc, lg)) == nullptr) {
-			strcpy(g->Message, "Cannot make Timestamp object");
-			return true;
-		} else if (gmID(g, setid, "SetTimestampParm", "(ILjava/sql/Timestamp;)V"))
+			d = (jdouble)val->GetFloatValue();
+			env->CallVoidMethod(job, setid, i, d);
+			break;
+		case TYPE_DATE:
+			if ((dat = env->FindClass("java/sql/Timestamp")) == nullptr) {
+				strcpy(g->Message, "Cannot find Timestamp class");
+				return true;
+			} else if (!(dtc = env->GetMethodID(dat, "<init>", "(J)V"))) {
+				strcpy(g->Message, "Cannot find Timestamp class constructor");
+				return true;
+			}	// endif's
+
+			lg = (jlong)val->GetBigintValue() * 1000;
+
+			if ((datobj = env->NewObject(dat, dtc, lg)) == nullptr) {
+				strcpy(g->Message, "Cannot make Timestamp object");
+				return true;
+			} else if (gmID(g, setid, "SetTimestampParm", "(ILjava/sql/Timestamp;)V"))
+				return true;
+
+			env->CallVoidMethod(job, setid, i, datobj);
+			break;
+		default:
+			sprintf(g->Message, "Parm type %d not supported", val->GetType());
 			return true;
+		}	// endswitch Type
 
-		env->CallVoidMethod(job, setid, i, datobj);
-		break;
-	default:
-		sprintf(g->Message, "Parm type %d not supported", val->GetType());
-		return true;
-	}	// endswitch Type
-
-	if (Check()) {
+	if (Check(jrc)) {
 		sprintf(g->Message, "SetParam: col=%s msg=%s", colp->GetName(), Msg);
 		rc = true;
 	} // endif msg

storage/connect/mysql-test/connect/disabled.def

@@ -9,7 +9,7 @@
 #  Do not use any TAB characters for whitespace.
 #
 ##############################################################################
-jdbc            : Variable settings depend on machine configuration
-jdbc_new        : Variable settings depend on machine configuration
+#jdbc            : Variable settings depend on machine configuration
+#jdbc_new        : Variable settings depend on machine configuration
 jdbc_oracle     : Variable settings depend on machine configuration
 jdbc_postgresql : Variable settings depend on machine configuration

storage/connect/mysql-test/connect/r/jdbc_new.result

@@ -56,7 +56,7 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=CONNECT DEFAULT CHARSET=latin1 CONNECTION='jdbc:mysql://127.0.0.1:SLAVE_PORT/test?user=root' `TABLE_TYPE`='JDBC'
 SELECT * FROM t1;
 a	b
-0	NULL
+NULL	NULL
 0	test00
 1	test01
 2	test02
@@ -72,7 +72,7 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=CONNECT DEFAULT CHARSET=latin1 CONNECTION='jdbc:mysql://127.0.0.1:SLAVE_PORT/test?user=root' `TABLE_TYPE`=JDBC `TABNAME`='t1'
 SELECT * FROM t1;
 a	b
-0	NULL
+NULL	NULL
 0	test00
 1	test01
 2	test02
@@ -104,7 +104,7 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=CONNECT DEFAULT CHARSET=latin1 CONNECTION='jdbc:mysql://127.0.0.1:SLAVE_PORT/test?user=root' `TABLE_TYPE`=JDBC
 SELECT * FROM t1;
 a	b
-0	NULL
+NULL	NULL
 0	0
 1	0
 2	0