Package org.exoplatform.services.ispn

Class AbstractMapper<KIn,VIn,KOut,VOut>

java.lang.Object
org.exoplatform.services.ispn.AbstractMapper<KIn,VIn,KOut,VOut>
All Implemented Interfaces:
Serializable, org.infinispan.distexec.mapreduce.Mapper<KIn,VIn,KOut,VOut>
Direct Known Subclasses:
DistributedExoCache.ClearCacheMapper, DistributedExoCache.GetCachedObjectsMapper, DistributedExoCache.GetEntriesMapper, DistributedExoCache.GetSizeMapper
public abstract class AbstractMapper<KIn,VIn,KOut,VOut> extends Object implements org.infinispan.distexec.mapreduce.Mapper<KIn,VIn,KOut,VOut>
The main class of all the mappers.
Version:
$Id$
Author:
Nicolas Filotto
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    AbstractMapper()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected abstract void
    _map(KIn key, VIn value, org.infinispan.distexec.mapreduce.Collector<KOut,VOut> collector)
    This method is in fact an internal mapping, it will be called by the map method in case the given key matches with the context
    protected abstract boolean
    isValid(KIn key)
    Indicates if the given key matches with the current context, indeed as the cache instances are shared it is needed to check each key to know if it is part of the targeted scope or not.
    void
    map(KIn key, VIn value, org.infinispan.distexec.mapreduce.Collector<KOut,VOut> collector)

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • AbstractMapper

      public AbstractMapper()

  • Method Details

    • map

      public void map(KIn key, VIn value, org.infinispan.distexec.mapreduce.Collector<KOut,VOut> collector)
      Specified by:
      map in interface org.infinispan.distexec.mapreduce.Mapper<KIn,VIn,KOut,VOut>

    • _map

      protected abstract void _map(KIn key, VIn value, org.infinispan.distexec.mapreduce.Collector<KOut,VOut> collector)
      This method is in fact an internal mapping, it will be called by the map method in case the given key matches with the context

    • isValid

      protected abstract boolean isValid(KIn key)
      Indicates if the given key matches with the current context, indeed as the cache instances are shared it is needed to check each key to know if it is part of the targeted scope or not.
      Parameters:
      key - the key to check
      Returns:
      true if the key matches with the scope, false otherwise.