com.hazelcast.hibernate.distributed

Class UpdateEntryProcessor

java.lang.Object

com.hazelcast.hibernate.distributed.AbstractRegionCacheEntryProcessor

com.hazelcast.hibernate.distributed.UpdateEntryProcessor

All Implemented Interfaces:

EntryBackupProcessor<Object,Expirable>, EntryProcessor<Object,Expirable>, DataSerializable, IdentifiedDataSerializable, Serializable

public class UpdateEntryProcessor
extends AbstractRegionCacheEntryProcessor

A concrete implementation of EntryProcessor which attempts to update a region cache entry

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UpdateEntryProcessor()
UpdateEntryProcessor(ExpiryMarker lock, Object newValue, Object newVersion, String nextMarkerId, long timestamp)

Method Summary

Methods

Modifier and Type	Method and Description
int	getId() Returns type identifier for this class.
Boolean	process(Map.Entry<Object,Expirable> entry) Process the entry without worrying about concurrency.
void	readData(ObjectDataInput in) Reads fields from the input stream
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class com.hazelcast.hibernate.distributed.AbstractRegionCacheEntryProcessor

getBackupProcessor, getFactoryId, processBackup

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateEntryProcessor

public UpdateEntryProcessor()

UpdateEntryProcessor

public UpdateEntryProcessor(ExpiryMarker lock,
                    Object newValue,
                    Object newVersion,
                    String nextMarkerId,
                    long timestamp)

Method Detail

process

public Boolean process(Map.Entry<Object,Expirable> entry)

Description copied from interface: EntryProcessor

Process the entry without worrying about concurrency.

Note that to modify an entry by using EntryProcessor you should explicitly call Map.Entry.setValue(V) method of Map.Entry such as:

 
 Override
        public Object process(Map.Entry entry) {
          Value value = entry.getValue();
          // process and modify value
          // ...
          entry.setValue(value);
          return result;
        }
 
 

otherwise EntryProcessor does not guarantee to modify the entry.

Parameters:

entry - entry to be processed

Returns:

result of the process

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Parameters:

out - output

Throws:

IOException

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Parameters:

in - input

Throws:

IOException

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. Id should be unique per DataSerializableFactory.

Returns:

type id