ademakov commented on code in PR #965:
URL: https://github.com/apache/ignite-3/pull/965#discussion_r937641586
##########
modules/schema/src/main/java/org/apache/ignite/internal/schema/BinaryTupleSchema.java:
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@@ -289,10 +289,23 @@ public static int nullMapSize(int numElements) {
}
/**
- * Returns the null map size in bytes if there are nullable elements, zero
otherwise.
+ * Get offset of the byte that contains null-bit of a given tuple element.
+ *
+ * @param index Tuple element index.
+ * @return Offset of the required byte relative to the tuple start.
+ */
+ public static int getNullOffset(int index) {
+ return HEADER_SIZE + index / 8;
+ }
+
+ /**
+ * Get a null-bit mask corresponding to a given tuple element.
+ *
+ * @param index Tuple element index.
+ * @return Mask to extract the required null-bit.
*/
- public int nullMapSize() {
- return hasNullableElements() ? nullMapSize(elementCount()) : 0;
+ public static byte getNullMask(int index) {
Review Comment:
Ok.
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