Java Expiring map example
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I have an usecase where I load the data from CB on the startup of the app, where I build the hashmap with . When a request is made to the app, it checked for the key in the map to load the object and makes downstream calls to another service based on the fields from the object value.
Now, there are apis on the app where we can modify the CB data in datastore, which means the map on the app needs to be refreshed. Is there any way that I can load the map every once in 5 hours or 10 hours...where I delete the key/values of the map and rebuild it.
Please point me to any examples.
I looked at the Guava CacheBuilder but I am guessing it loads the values for the existing keys. In my case, the keys need to be purged too and reload the entire map from data store
cache = CacheBuilder.newBuilder().refreshAfterWrite(2,TimeUnit.SECONDS).
build(new CacheLoader<String, String>(){
@Override
public String load(String arg0) throws Exception {
// TODO Auto-generated method stub
return addcache(arg0);
}
}
hash-map
asked 2 hours ago
SaiSai
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I have an usecase where I load the data from CB on the startup of the app, where I build the hashmap with . When a request is made to the app, it checked for the key in the map to load the object and makes downstream calls to another service based on the fields from the object value.
Now, there are apis on the app where we can modify the CB data in datastore, which means the map on the app needs to be refreshed. Is there any way that I can load the map every once in 5 hours or 10 hours...where I delete the key/values of the map and rebuild it.
Please point me to any examples.
I looked at the Guava CacheBuilder but I am guessing it loads the values for the existing keys. In my case, the keys need to be purged too and reload the entire map from data store
cache = CacheBuilder.newBuilder().refreshAfterWrite(2,TimeUnit.SECONDS).
build(new CacheLoader<String, String>(){
@Override
public String load(String arg0) throws Exception {
// TODO Auto-generated method stub
return addcache(arg0);
}
}
hash-map
asked 2 hours ago
SaiSai
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
$begingroup$
I have an usecase where I load the data from CB on the startup of the app, where I build the hashmap with . When a request is made to the app, it checked for the key in the map to load the object and makes downstream calls to another service based on the fields from the object value.
Now, there are apis on the app where we can modify the CB data in datastore, which means the map on the app needs to be refreshed. Is there any way that I can load the map every once in 5 hours or 10 hours...where I delete the key/values of the map and rebuild it.
Please point me to any examples.
I looked at the Guava CacheBuilder but I am guessing it loads the values for the existing keys. In my case, the keys need to be purged too and reload the entire map from data store
cache = CacheBuilder.newBuilder().refreshAfterWrite(2,TimeUnit.SECONDS).
build(new CacheLoader<String, String>(){
@Override
public String load(String arg0) throws Exception {
// TODO Auto-generated method stub
return addcache(arg0);
}
}
hash-map
asked 2 hours ago
SaiSai
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I have an usecase where I load the data from CB on the startup of the app, where I build the hashmap with . When a request is made to the app, it checked for the key in the map to load the object and makes downstream calls to another service based on the fields from the object value.
Now, there are apis on the app where we can modify the CB data in datastore, which means the map on the app needs to be refreshed. Is there any way that I can load the map every once in 5 hours or 10 hours...where I delete the key/values of the map and rebuild it.
Please point me to any examples.
I looked at the Guava CacheBuilder but I am guessing it loads the values for the existing keys. In my case, the keys need to be purged too and reload the entire map from data store
cache = CacheBuilder.newBuilder().refreshAfterWrite(2,TimeUnit.SECONDS).
build(new CacheLoader<String, String>(){
@Override
public String load(String arg0) throws Exception {
// TODO Auto-generated method stub
return addcache(arg0);
}
}
hash-map
hash-map
asked 2 hours ago
SaiSai
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
SaiSai
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
SaiSai
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
SaiSai
1
asked 2 hours ago
SaiSai
1
1
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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