Load cache at startup and read from it

[Rohithaksha Kalluraya]

1. What version of Ehcache you are currently using;

   I am using Ehcache version: 3.2.1

2. Paste the configuration for the Cache/CacheManager you have an issue with;

   <?xml version="1.0" encoding="UTF-8"?>

   <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:noNamespaceSchemaLocation="http://www.ehcache.org/ehcache.xsd"

    updateCheck="true" monitoring="autodetect" dynamicConfig="true">

    <defaultCache maxElementsInMemory="10000" eternal="true"

    overflowToDisk="false" maxElementsOnDisk="0" diskPersistent="false"

    diskExpiryThreadIntervalSeconds="0" memoryStoreEvictionPolicy="FIFO" />

    <cache name="MyCache" maxElementsInMemory="10000"

    eternal="false" overflowToDisk="true" maxElementsOnDisk="15000"

    diskPersistent="true" memoryStoreEvictionPolicy="LRU" />

   </ehcache>

3. Add any name and version of other library or framework you use Ehcache with (e.g. Hibernate);

   I am using Spring boot framework.

4. Providing JDK and OS versions maybe useful as well.

   I am developing my application in Java 8 on windows (PRODUCTION will be on RHEL).

Below are my requirements:

1. I would like to load the entire cache at the application startup (data is from a select query on a database table).

2. For client requests, always read data from cache.

3. Read data based on different keys (for example, I have list of addresses cached, I need to fetch address based on Id, zip code, city, etc.).

4. Need to set the cache expiry so that it gets refreshed at a configured interval.

5. Persist data in the disk and read this during the application startup only if database query fails during startup.

Can I achieve above requirements using Ehcache in my spring boot application?

Appreciate any insights.

Thank you!

Rohit

[Rohithaksha Kalluraya]

I think I found the answer. I am going with manual cache management as spring annotations does not cover all my use cases. Thanks!