Apparently the default query limit on the number of returned documents is currently 20. Changing it is possible by using QueryOptions.Builder.setLimit(). Java dev docs don't seem to indicate the allowed maximum.
I have thousands of records indexed in my application and searches might potentially return a large number of objects. Instead of hardcoding something like MAX_QUERY_RESULTS = 1000 in the app, is there a way to programmatically access this search quota?
The class com.google.appengine.api.search.checkers.SearchApiLimits has a long list of constants of this ilk, including SEARCH_MAXIMUM_LIMIT with the value 1000.