Delete a key-value pair

When a key-value pair is no longer needed, it can be permanently deleted from the cache segment. The key-value pair cannot be restored once it is deleted,but it can be recreated.

Delete using a key

You can delete a key by passing it directly to the deleteCacheValue() method as a parameter.

Ensure the following packages are imported:

    

        
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         import com.zc.component.cache.ZCCache; 
import com.zc.component.cache.ZCSegment;

    

    

        
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         //Get a Cache Instance 
ZCCache cacheobj=ZCCache.getInstance(); 
//Get an instance of a specific segment with segment ID 
ZCSegment segment = cacheobj.getSegment(1510000000054091L); 
//Delete the Cache object using key 
segment.deleteCacheValue("Name");

    

Delete using a cache object

In this delete variant, an empty cache instance is constructed and the key value is set to it. This instance is passed as an argument to the deleteCacheObject() method.

Ensure the following packages are imported:

    

        
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         import com.zc.component.cache.ZCCache; 
import com.zc.component.cache.ZCCacheObject; 
import com.zc.component.cache.ZCSegment; 

    

    

        
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         //Get a Cache Instance ZCCache
cacheobj=ZCCache.getInstance(); 
//Get an instance of a specific segment with segment ID 
ZCSegment segment = cacheobj.getSegment(1510000000054091L); 
//Create a CacheObject and set cache details 
ZCCacheObject cacheDetails = ZCCacheObject.getInstance(); 
cacheDetails.setKeyName("ObjectKey"); 
//Delete the cache using the CacheObject
segment.deleteCacheObject(cacheDetails);