Spring cache annotations: some tips & tricks. Use the key property or a custom key generator to have more. Using the cache annotations from Spring is.

They wanted something like @Cachable(value='mycache', generator='custom1' ). I believe the aim is to centralize certain key generation mechanisms, and they don't want to embed the rules in strings that exist in the context file.

The workaround I gave them used a custom KeyGenerator that simply delegated to one of a configured list of other custom generators. I used an additional annotation in conjunction with @Cacheable to feed in the custom key name. And that does work, but they would like something where they just specify that option at the same time they do the cache itself. Added a comment - 26/Jun/13 4:50 AM - edited They wanted something like @Cachable(value='mycache', generator='custom1' ). I believe the aim is to centralize certain key generation mechanisms, and they don't want to embed the rules in strings that exist in the context file. The workaround I gave them used a custom KeyGenerator that simply delegated to one of a configured list of other custom generators. I used an additional annotation in conjunction with @Cacheable to feed in the custom key name.

Dota Custom Key Generator

And that does work, but they would like something where they just specify that option at the same time they do the cache itself. An extra keyGenerator parameter has been added to the base @Cache method annotations. This parameter holds the name of the KeyGenerator bean to use to compute the key for that specific caching endpoint.

This gives therefore a third way to customize the key. These are:. Default KeyGenerator (global for all endpoints). The 'key' attribute of the annotation, giving the SpEL expression to use. The 'keyGenerator' attribute of the annotation The annotation attributes are therefore exclusive. Trying to specify them both will result in an IllegalStateException.

Generator

Added a comment - 31/Mar/14 5:44 AM An extra keyGenerator parameter has been added to the base @Cache method annotations. This parameter holds the name of the KeyGenerator bean to use to compute the key for that specific caching endpoint. This gives therefore a third way to customize the key. These are: Default KeyGenerator (global for all endpoints) The 'key' attribute of the annotation, giving the SpEL expression to use The 'keyGenerator' attribute of the annotation The annotation attributes are therefore exclusive. Trying to specify them both will result in an IllegalStateException.

I encountered a problem with Spring Frameworks default Cache KeyGenerator. It seems to often encounter conflicts and it appears to have been recorded on this I know this question has already been marked as answered, but I thought I would share how I resolved this. Basically, we created and used our own Cache KeyGenerator in place of the default one. Drivers in labview arduino.