Package com.tangosol.util.processor

Class AbstractEvolvableProcessor<K,V,R>

java.lang.Object

com.tangosol.io.AbstractEvolvable

com.tangosol.util.processor.AbstractEvolvableProcessor<K,V,R>

Type Parameters:

K - the type of the Map entry key

V - the type of the Map entry value

R - the type of value returned by the EntryProcessor

All Implemented Interfaces:

Evolvable, EvolvablePortableObject, PortableObject, InvocableMap.EntryProcessor<K,V,R>, Serializable

public abstract class AbstractEvolvableProcessor<K,V,R>
extends AbstractEvolvable
implements InvocableMap.EntryProcessor<K,V,R>, EvolvablePortableObject

An Evolvable AbstractProcessor that is a partial EntryProcessor implementation that provides the default implementation of the processAll(java.util.Set<? extends com.tangosol.util.InvocableMap.Entry<K, V>>) method.

Since:

Coherence 14.1.1

Author:

jf 2019.11.21

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
AbstractEvolvableProcessor()

Method Summary

Modifier and Type	Method	Description
R	process(InvocableMap.Entry<K,V> entry)	Process a Map.Entry object.
Map<K,R>	processAll(Set<? extends InvocableMap.Entry<K,V>> setEntries)	Process a Set of InvocableMap.Entry objects.

Methods inherited from class com.tangosol.io.AbstractEvolvable

getDataVersion, getFutureData, getImplVersion, setDataVersion, setFutureData

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tangosol.io.Evolvable

getDataVersion, getFutureData, getImplVersion, setDataVersion, setFutureData

Methods inherited from interface com.tangosol.io.pof.PortableObject

readExternal, writeExternal

Constructor Detail

AbstractEvolvableProcessor

public AbstractEvolvableProcessor()

Method Detail

process

public R process(InvocableMap.Entry<K,V> entry)

Description copied from interface: InvocableMap.EntryProcessor

Process a Map.Entry object.

Note: if this method throws an exception, all modifications to the supplied entry or any other entries retrieved via the BackingMapContext.getBackingMapEntry(java.lang.Object) API will be rolled back leaving all underlying values unchanged.

Specified by:

process in interface InvocableMap.EntryProcessor<K,V,R>

Parameters:

entry - the Entry to process

Returns:

the result of the processing, if any

processAll

public Map<K,R> processAll(Set<? extends InvocableMap.Entry<K,V>> setEntries)

Process a Set of InvocableMap.Entry objects. This method is semantically equivalent to:

   Map mapResults = new ListMap();
   for (Iterator iter = setEntries.iterator(); iter.hasNext(); )
       {
       Entry entry = (Entry) iter.next();
       mapResults.put(entry.getKey(), process(entry));
       }
   return mapResults;
 

Note: if processAll() call throws an exception, only the entries that were removed from the setEntries would be considered successfully processed and the corresponding changes made to the underlying Map; changes made to the remaining entries or any other entries obtained from BackingMapContext.getBackingMapEntry(java.lang.Object) will not be processed.

Specified by:

processAll in interface InvocableMap.EntryProcessor<K,V,R>

Parameters:

setEntries - a Set of InvocableMap.Entry objects to process

Returns:

a Map containing the results of the processing, up to one entry for each InvocableMap.Entry that was processed, keyed by the keys of the Map that were processed, with a corresponding value being the result of the processing for each key