I want to store data into the Cache using EhCache, but if I try to access the data before data has been populated into the Cache, I get NULL POINTER exception. How can I make sure that Data is not read from the cache until and unless data has been stored into the Cache?
How to make sure that no one reads from Ehcache Object, while data is being written into the cache?
1k Views Asked by Sibani At
1
There are 1 best solutions below
Related Questions in CACHING
- ClassCastException: datastructures.instances.JClass cannot be cast to java.util.ArrayList
- Robospice. How to save data and how to get data from DB?
- Make @lru_cache ignore some of the function arguments
- Xib taking long time (>1s) to load. UIFont cache seems to blame
- Android picasso cache images
- Rails 4 low-level caching not working
- How to cache Exchange web service API autodiscoverurl?
- The process cannot access the file because it is being used by another process asp.net
- Alamofire loading from cache even when cache policy set to ReloadIgnoringLocalAndRemoteCacheData
- Java Heap vs Cache
- In what use cases is locking on ASP.NET cache required/desirable
- Chrome cache overriding angularjs disabling of cache
- AFNetworking 2.0 Cache Issue
- Symfony ESI Cache / Surrogate Listener Issue
- Using getOrElseUpdate of TrieMap in Scala
Related Questions in EHCACHE-BIGMEMORY
- Maximum size of the value can be handled by EhCache
- EhCache cached object modification
- Tomcat clustering in Google compute engine for single and multiple compute engine instance
- How to avoid lost data in Terracotta BigMemory Go
- BigMemory 4.0.5 Terrocatta Distributed + hibernate second level cache not able to configure
- Ehcache avoid storing sensitive data to disk?
- Terracotta bigmemory-max client
- Is there any way to configure disk store for terracotta BigMemory to remove all data store on service/cache manager start up?
- Dealing with high memory scalable Java EE application
- Does Big Memory compliments EhCache & Terracotta server?
- Understanding ehcache and how it works with Play Framework 2.X
- How to fetch all the elements in a MemoryStore of an existing cache [EHCache]
- Ehcache throws NullPointerException while evicting expired elements
- Ehcache cache the data with support cluster disk storage (replication)
- big.matrix as data.frame in R
Related Questions in EHCACHE-3
- EhCache in distributed mode
- Persistent caching in a Java web app?
- Is it possible to implement a cache refresh behaviour using Ehcache 3.x?
- Is Hibernate 6 not compatible with Ehcache 3 for Spring Boot 3?
- Why Spring Boot causes Ehcache to throw ClassCastException when declaring Key or Value in configuration?
- why default CacheManager is not getting in spring boot 3 and ehcache 3
- SpringBoot and EhCache - caches are not found
- How to determine the numbers of cache entries from Hibernate 2nd level Ehcache?
- How to tell Hibernate's 2nd Level Cache to use the proper Id?
- How to obtain a Cache in Spring Boot 3/Hibernate 6/JCache/Ehcache 3?
- Spring boot3.x with EHcache 3.x cacheExpiry not working
- mybatis-ehcache exception after org.ehcache 3.10.8 update
- How do I resolve Could not find artifact javax.xml.bind:jaxb-api:pom:2.3.0-b161121.1438 in central (https://repo1.maven.org/maven2)?
- Ehcache3 Impact of persistence on performance, Disk Tier to be used anyways
- Why would Spring Boot/EhCache NOT use the specified configuration file?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
What you are requesting will make cache usage very problematic.
If you always block on a missing entry, any eviction or expiry will put you in the same situation as having an empty cache / missing mapping.
However, using cache-through might be a better way to look at the problem. It would leave the loading of the mapping to the cache itself making sure you never get a
nullresult (unless that key does not exist in the backing store).See documentation for more information on that option.