In invalidating cache

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Some open addressing methods, such as Hopscotch hashing, Robin Hood hashing, last-come-first-served hashing and cuckoo hashing move existing keys around in the array to make room for the new key.This gives better maximum search times than the methods based on probing.Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Encyclopedia, Wikipedia.Related to directory: telephone directory, Web directory, Directory assistance, Street directory, Business directory A provision in a statute, rule of procedure, or the like, that is a mere direction or instruction of no obligatory force and involves no invalidating consequence for its disregard, as opposed to an imperative or mandatory provision, which must be followed.But at the same time, you want your clients to see fresh content as soon as there is an update.

I've got caching turned on, and it works great, but I want to have a refresh button to reload data retrieved from the server.Open addressing, or closed hashing, is a method of collision resolution in hash tables.With this method a hash collision is resolved by probing, or searching through alternate locations in the array (the probe sequence) until either the target record is found, or an unused array slot is found, which indicates that there is no such key in the table.The proxy can choose to either discard the content immediately, or do so when it is next requested.On that next request, the proxy will fetch a fresh copy from the application.

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