问题
I have installed HazelCast 2.5. I want to persist my records into disk. I learned that MapStore does this job. However i'm not sure how to implement MapStore.
Code i've written so far:
public class MyMaps implements MapStore<String,String> {
public static Map<Integer, String> mapCustomers = Hazelcast.getMap("customers");
public static void main(String[] args) {
{
mapCustomers.put(1, "Ram");
mapCustomers.put(2, "David");
mapCustomers.put(3, "Arun");
}
}
How do i put all these entries into disk.
Is it necessary to have a back-end like MySQL or PostgreSQL to use this class?
I believe the following function can be used:
public void delete(String arg0);
public void deleteAll(String arg0);
public void store(String arg0);
public void storeAll(String arg0);
I need a sample snippet of how to implement MapStore.
Please provide me with sample code.
Please Help.!!
回答1:
In following links you can find example map store implementations (fro SimpleDB and HBase).
- Integrating Hazelcast and SimpleDB
- Distribute with Hazelcast, Persist into HBase
Yes, you should have a centralized datastore and your MapStore implementation will connect and operate on.
来源:https://stackoverflow.com/questions/15132946/persisting-data-on-disk-using-hazelcast