Text Cache

RE: Text Cache

samarendras0002 — Thu, 14 Aug 2025 11:04:37 GMT

Hi Team, is it possible to provide the source code of this plugin, I want to know how we generally create appian plugins. Email - tech.samarendra7@gmail.com

RE: Text Cache

Stefan Helzle — Mon, 28 Nov 2022 11:12:20 GMT

Keep in mind, that the memory this plugin uses, is NOT shared between multiple servers or between the expression runtime and the process execution engines. Putting an item into the cache from a process and retrieving it from an expression will NOT work.

RE: Text Cache

Robert Turverey — Fri, 26 Feb 2021 03:22:16 GMT

Will this work in multi server environments (e.g., HA)?

RE: Text Cache

Appian AppMarket — Fri, 15 Jan 2021 23:08:06 GMT

v1.1.1 Release Notes

Added textcachekeys: returns list of active keys.
Fixed missing textcacheclear.
Bumped Appian SDK jar to 20.2.

RE: Text Cache

derekl — Mon, 11 Jan 2021 16:39:16 GMT

Something else we observed that may need some clarification in your description. The description states that the expiration policy is used "once the limit is reached". However, we've found that the expiration policy actually prevents items from getting expired even if the cache is not full. For example, consider:

An item is cached for 8 hours
After 1 hour without accessing the cache, the textcachelifetime is 7 hours
If the item is then accessed in the cache after 1 hour, the result of textcachelifetime is back to 8 hours

This may have some unintended consequences, such as if your system gets heavy usage, an item may never get removed from cache. In our case, we used it to cache access tokens that expire, and found that they were cached for too long because they were regularly accessed, resulting in authentication errors.

After we figured this out, it makes sense and we resolved our issue by switching to the "CREATE" expirationPolicy. However, this behavior wasn't clear to us from the description, so may be useful to clarify!

It might also be useful if there was some feature like a "maximumExpireAfter" that would allow you to utilize the "ACCESS" expiration policy, but cap it out so that it eventually expires.

[mention:2438085df24f4a7db353add3c681aa0c:e9ed411860ed4f2ba0265705b8793d05] thank you for the extremely useful plug-in!

RE: Text Cache

ricardop — Tue, 21 Jul 2020 15:25:15 GMT

Changelog Version 1.1.0:

· Added textcachelifetime and textcachesize functions.

· Time unit can now be specified in textcacheset (seconds, minutes, hours, days).

· Increased cache max size from 10K to 100K.

· Hidden textcacheclear function to avoid clearing the entire cache by mistake.

· Bumped Appian compatibility to 19.4.