TRAFODION-2957 one stmt support multi-queries

core/conn/jdbcT4/src/main/java/org/trafodion/jdbc/t4/T4Properties.java

@@ -173,6 +173,8 @@ public class T4Properties {
 	//TCP Nagle's algorithm 
 	private boolean _tcpNoDelay = true;
 
+	private boolean allowMultiQueries = false;
+
 	// -----------------------------------------------------------
 	//
 	// The following static members and static block are ment to
@@ -436,9 +438,10 @@ private void setProperties() {
 
         setLobChunkSize(getProperty("lobChunkSize"));
         setUseLobHandle(getProperty("useLobHandle"));
+        setAllowMultiQueries(getProperty("allowMultiQueries"));
 	}
 
-	T4Properties getT4Properties() {
+    T4Properties getT4Properties() {
 		return this;
 	}
 
@@ -532,6 +535,7 @@ public Properties getProperties() {
         props.setProperty("lobChunkSize", String.valueOf(lobChunkSize_));
         props.setProperty("useLobHandle", String.valueOf(useLobHandle_));
 
+        props.setProperty("allowMultiQueries", String.valueOf(allowMultiQueries));
 		return props;
 	}
 
@@ -1942,19 +1946,19 @@ public void setUseLobHandle(String val) {
 
 	/**
 	 * Returns the rounding mode set for the driver as an Integer value with one
-	 * of the following values. static int ROUND_CEILING Rounding mode to round
-	 * towards positive infinity. static int ROUND_DOWN Rounding mode to round
-	 * towards zero. static int ROUND_FLOOR Rounding mode to round towards
-	 * negative infinity. static int ROUND_HALF_DOWN Rounding mode to round
-	 * towards "nearest neighbor" unless both neighbors are equidistant, in
-	 * which case round down. static int ROUND_HALF_EVEN Rounding mode to round
-	 * towards the "nearest neighbor" unless both neighbors are equidistant, in
-	 * which case, round towards the even neighbor. static int ROUND_HALF_UP
-	 * Rounding mode to round towards "nearest neighbor" unless both neighbors
-	 * are equidistant, in which case round up. static int ROUND_UNNECESSARY
-	 * Rounding mode to assert that the requested operation has an exact result,
-	 * hence no rounding is necessary. static int ROUND_UP Rounding mode to
-	 * round away from zero.
+	 * of the following values.
+	 * static int ROUND_CEILING Rounding mode to round towards positive infinity.
+	 * static int ROUND_DOWN Rounding mode to round towards zero.
+	 * static int ROUND_FLOOR Rounding mode to round towards negative infinity.
+	 * static int ROUND_HALF_DOWN Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, 
+	 *     in which case round down.
+	 * static int ROUND_HALF_EVEN Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant,
+	 *     in which case, round towards the even neighbor.
+	 * static int ROUND_HALF_UP Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant,
+	 *     in which case round up.
+	 * static int ROUND_UNNECESSARY Rounding mode to assert that the requested operation has an exact result,
+	 *     hence no rounding is necessary.
+	 * static int ROUND_UP Rounding mode to round away from zero.
 	 */
 	int getRoundingMode() {
 		return roundMode_;
@@ -2571,6 +2575,20 @@ void setClientInfoProperties(Properties prop) {
     Properties getClientInfoProperties() {
         return this.clientInfoProp;
     }
-
-
+
+    public boolean isAllowMultiQueries() {
+        return allowMultiQueries;
+    }
+
+    public void setAllowMultiQueries(boolean allowMultiQueries) {
+        this.allowMultiQueries = allowMultiQueries;
+    }
+
+    private void setAllowMultiQueries(String property) {
+        if (property != null && property.length()>0){
+            setAllowMultiQueries(Boolean.valueOf(property));
+        }else{
+            setAllowMultiQueries(false);
+        }
+    }
 }

core/conn/jdbcT4/src/main/java/org/trafodion/jdbc/t4/TrafT4Connection.java

@@ -183,7 +183,11 @@ public Statement createStatement() throws SQLException {
 		validateConnection();
 
 		try {
-			return new TrafT4Statement(this);
+            if (props_.isAllowMultiQueries()) {
+                return new TrafT4MultiQueriesStatement(this);
+            } else {
+                return new TrafT4Statement(this);
+            }
 		} catch (SQLException se) {
 			performConnectionErrorChecks(se);
 			throw se;
@@ -774,9 +778,12 @@ public PreparedStatement prepareStatement(String sql) throws SQLException {
 				}
 			}
 
-			stmt = new TrafT4PreparedStatement(this, sql);
-
-			stmt.prepare(stmt.sql_, stmt.queryTimeout_, stmt.resultSetHoldability_);
+            if (props_.isAllowMultiQueries()) {
+                stmt = new TrafT4MultiQueriesPreparedStatement(this, sql);
+            } else {
+                stmt = new TrafT4PreparedStatement(this, sql);
+                stmt.prepare(stmt.sql_, stmt.queryTimeout_, stmt.resultSetHoldability_);
+            }
 
 			if (isStatementCachingEnabled()) {
 				addPreparedStatement(this, sql, stmt, ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY,