question: public synchronized boolean shouldExecute ( KeySelect keySelect ) { if ( slowQueries == null ) return true ; String queryKey = keySelect . generateKey ( ) ; Long pendingQueryInvocation = pendingQueries . get ( queryKey ) ; if ( pendingQueryInvocation != null ) { if ( logger . isDebugEnabled ( ) ) { logger . debug ( "Skipped pending query: queryKey=" + queryKey ) ; } return false ; } Long slowQueryInvocation = slowQueries . get ( queryKey ) ; if ( slowQueryInvocation != null ) { keySelect . setLastInvocation ( slowQueryInvocation ) ; long sinceLastMillis = System . currentTimeMillis ( ) - slowQueryInvocation ; if ( sinceLastMillis < ( slowQueryCacheDuration * 1000 ) ) { slowQueries . put ( queryKey , System . currentTimeMillis ( ) ) ; return false ; } } pendingQueries . put ( queryKey , System . currentTimeMillis ( ) ) ; return true ; }
target:  Returns true if we have not heard of this query *or* if the query has exceeded the slow query limit.