Add methods for creating multiple values in one go

Author: zhicwu

clickhouse-client/src/main/java/com/clickhouse/client/ClickHouseValues.java

@@ -23,6 +23,7 @@
 import java.time.temporal.ChronoField;
 import java.util.Collection;
 import java.util.Enumeration;
+import java.util.List;
 import java.util.Map;
 import java.util.TimeZone;
 import java.util.UUID;
@@ -970,6 +971,46 @@ public static Object extractSingleValue(Map<?, ?> value) {
         return value.values().iterator().next();
     }
 
+    /**
+     * Creates multiple values based on given columns.
+     *
+     * @param config  non-null configuration
+     * @param columns non-null columns
+     * @return non-null values with default value, either null or empty
+     */
+    public static ClickHouseValue[] newValues(ClickHouseConfig config, List<ClickHouseColumn> columns) {
+        if (columns == null || columns.isEmpty()) {
+            return EMPTY_VALUES;
+        }
+
+        ClickHouseValue[] values = new ClickHouseValue[columns.size()];
+        int index = 0;
+        for (ClickHouseColumn c : columns) {
+            values[index++] = newValue(config, c);
+        }
+        return values;
+    }
+
+    /**
+     * Creates multiple values based on given columns.
+     *
+     * @param config  non-null configuration
+     * @param columns non-null columns
+     * @return non-null values with default value, either null or empty
+     */
+    public static ClickHouseValue[] newValues(ClickHouseConfig config, ClickHouseColumn[] columns) {
+        if (columns == null || columns.length == 0) {
+            return EMPTY_VALUES;
+        }
+
+        int len = columns.length;
+        ClickHouseValue[] values = new ClickHouseValue[len];
+        for (int i = 0; i < len; i++) {
+            values[i] = newValue(config, columns[i]);
+        }
+        return values;
+    }
+
     /**
      * Creates a value object based on given column.
      *