Hi all, I am trying to use memcache.increment to move to negative values, starting at 0. According to the javadoc[1]:
"To facilitate use as an atomic countdown, incrementing by a negative value (i.e. decrementing) will not go below zero: incrementing 2 by -5 will return 0, not -3. However, due to the way numbers are stored, decrementing -3 by -5 will result in -8; so the zero-floor rule only applies to decrementing numbers that were positive." What is the rationale behind this, and why is 0 considered positive? I may have missed something, but I did not understand a similar behavior in python's memcache.decr() docs. If my counter can hold positive or negative values, what options do I have apart from initializing at 2^30? -- Nacho [1] http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/memcache/MemcacheService.html#increment(java.lang.Object,%20long) -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
