leerho commented on code in PR #684:
URL: https://github.com/apache/datasketches-java/pull/684#discussion_r2288824798
##########
src/main/java/org/apache/datasketches/quantiles/DoublesSketch.java:
##########
@@ -151,29 +151,59 @@ public static DoublesSketch heapify(final MemorySegment
srcSeg) {
}
/**
- * Wrap this sketch around the given updatable MemorySegment image of a
DoublesSketch, compact or updatable.
+ * Wrap this sketch around the given MemorySegment image of a compact,
read-only DoublesSketch.
*
- * @param srcSeg the given MemorySegment image of a DoublesSketch that may
have data
- * @return a sketch that wraps the given srcSeg in read-only mode.
+ * @param srcSeg the given MemorySegment image of a compact, read-only
DoublesSketch.
+ * @return a compact, read-only sketch that wraps the given MemorySegment.
*/
public static DoublesSketch wrap(final MemorySegment srcSeg) {
+ if (!checkIsMemorySegmentCompact(srcSeg)) {
+ throw new SketchesArgumentException("MemorySegment sketch image must be
in compact form.");
Review Comment:
Done.
##########
src/main/java/org/apache/datasketches/quantiles/DoublesSketch.java:
##########
@@ -151,29 +151,59 @@ public static DoublesSketch heapify(final MemorySegment
srcSeg) {
}
/**
- * Wrap this sketch around the given updatable MemorySegment image of a
DoublesSketch, compact or updatable.
+ * Wrap this sketch around the given MemorySegment image of a compact,
read-only DoublesSketch.
*
- * @param srcSeg the given MemorySegment image of a DoublesSketch that may
have data
- * @return a sketch that wraps the given srcSeg in read-only mode.
+ * @param srcSeg the given MemorySegment image of a compact, read-only
DoublesSketch.
+ * @return a compact, read-only sketch that wraps the given MemorySegment.
*/
public static DoublesSketch wrap(final MemorySegment srcSeg) {
+ if (!checkIsMemorySegmentCompact(srcSeg)) {
+ throw new SketchesArgumentException("MemorySegment sketch image must be
in compact form.");
+ }
+ return DirectCompactDoublesSketch.wrapInstance(srcSeg);
+ }
+
+ /**
+ * Wrap this sketch around the given MemorySegment image of an updatable
DoublesSketch.
+ *
+ * <p>The given MemorySegment must be writable and it must contain a
<i>UpdateDoublesSketch</i>.
+ * The sketch will be updated and managed totally within the MemorySegment.
If the given source
+ * MemorySegment is created off-heap, then all the management of the
sketch's internal data will be off-heap as well.</p>
+ *
+ * <p><b>NOTE:</b>If during updating of the sketch the sketch requires more
capacity than the given size of the MemorySegment, the sketch
+ * will request more capacity using the {@link MemorySegmentRequest
MemorySegmentRequest} interface. The default of this interface will
+ * return a new MemorySegment on the heap.</p>
+ *
+ * @param srcSeg the given MemorySegment image of an
<i>UpdateDoublesSketch</i>.
+ * @return an updatable sketch that wraps the given MemorySegment.
+ */
+ public static DoublesSketch writableWrap(final MemorySegment srcSeg) {
if (checkIsMemorySegmentCompact(srcSeg)) {
- return DirectCompactDoublesSketch.wrapInstance(srcSeg);
+ throw new SketchesArgumentException("MemorySegment sketch image must be
in updatable form.");
}
return DirectUpdateDoublesSketch.wrapInstance(srcSeg, null);
}
/**
- * Wrap this sketch around the given updatable MemorySegment image of a
DoublesSketch, compact or updatable.
+ * Wrap this sketch around the given MemorySegment image of an updatable
DoublesSketch.
+ *
+ * <p>The given MemorySegment must be writable and it must contain a
<i>UpdateDoublesSketch</i>.
+ * The sketch will be updated and managed totally within the MemorySegment.
If the given source
+ * MemorySegment is created off-heap, then all the management of the
sketch's internal data will be off-heap as well.</p>
+ *
+ * <p><b>NOTE:</b>If during updating of the sketch the sketch requires more
capacity than the given size of the MemorySegment, the sketch
+ * will request more capacity using the {@link MemorySegmentRequest
MemorySegmentRequest} interface. The default of this interface will
+ * return a new MemorySegment on the heap. It is up to the user to
optionally extend this interface if more flexible
+ * handling of requests for more capacity is required.</p>
*
- * @param srcSeg the given MemorySegment image of a DoublesSketch that may
have data.
+ * @param srcSeg the given MemorySegment image of a DoublesSketch.
* @param mSegReq the MemorySegmentRequest used if the given MemorySegment
needs to expand.
* Otherwise, it can be null and the default MemorySegmentRequest will be
used.
- * @return a sketch that wraps the given srcSeg in read-only mode.
+ * @return a sketch that wraps the given MemorySegment.
*/
- public static DoublesSketch wrap(final MemorySegment srcSeg, final
MemorySegmentRequest mSegReq) {
+ public static DoublesSketch writableWrap(final MemorySegment srcSeg, final
MemorySegmentRequest mSegReq) {
if (checkIsMemorySegmentCompact(srcSeg)) {
- return DirectCompactDoublesSketch.wrapInstance(srcSeg);
+ throw new SketchesArgumentException("MemorySegment sketch image must be
in updatable form.");
Review Comment:
Done.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
