org.infinispan.marshall
Class MarshalledValue

java.lang.Object
  extended by org.infinispan.marshall.MarshalledValue

public class MarshalledValue
extends Object

Wrapper that wraps cached data, providing lazy deserialization using the calling thread's context class loader.

The MarshalledValueInterceptor handles transparent wrapping/unwrapping of cached data.

Since:
4.0
Author:
Manik Surtani (manik@jboss.org), Mircea.Markus@jboss.com, Galder ZamarreƱo
See Also:
MarshalledValueInterceptor

Nested Class Summary
static class MarshalledValue.Externalizer
           
 
Field Summary
protected  Object instance
           
protected  byte[] raw
           
 
Constructor Summary
MarshalledValue(byte[] raw, int cachedHashCode, StreamingMarshaller marshaller)
           
MarshalledValue(Object instance, boolean equalityPreferenceForInstance, StreamingMarshaller marshaller)
           
 
Method Summary
 void compact(boolean preferSerializedRepresentation, boolean force)
          Compacts the references held by this class to a single reference.
 void deserialize()
           
 boolean equals(Object o)
           
 Object get()
          Returns the 'cached' instance.
 byte[] getRaw()
           
 int hashCode()
           
 void init(byte[] raw, int cachedHashCode)
           
static boolean isTypeExcluded(Class type)
          Tests whether the type should be excluded from MarshalledValue wrapping.
 void serialize()
           
 String toString()
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

instance

protected volatile Object instance

raw

protected volatile byte[] raw
Constructor Detail

MarshalledValue

public MarshalledValue(Object instance,
                       boolean equalityPreferenceForInstance,
                       StreamingMarshaller marshaller)
                throws NotSerializableException
Throws:
NotSerializableException

MarshalledValue

public MarshalledValue(byte[] raw,
                       int cachedHashCode,
                       StreamingMarshaller marshaller)
Method Detail

init

public void init(byte[] raw,
                 int cachedHashCode)

serialize

public void serialize()

deserialize

public void deserialize()

compact

public void compact(boolean preferSerializedRepresentation,
                    boolean force)
Compacts the references held by this class to a single reference. If only one representation exists this method is a no-op unless the 'force' parameter is used, in which case the reference held is forcefully switched to the 'preferred representation'.

Either way, a call to compact() will ensure that only one representation is held.

Parameters:
preferSerializedRepresentation - if true and both representations exist, the serialized representation is favoured. If false, the deserialized representation is preferred.
force - ensures the preferred representation is maintained and the other released, even if this means serializing or deserializing.

getRaw

public byte[] getRaw()

get

public Object get()
Returns the 'cached' instance. Impl note: this method is synchronized so that it synchronizez with the code that nullifies the instance.

See Also:
nullifyInstance()

equals

public boolean equals(Object o)
Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

toString

public String toString()
Overrides:
toString in class Object

isTypeExcluded

public static boolean isTypeExcluded(Class type)
Tests whether the type should be excluded from MarshalledValue wrapping.

Parameters:
type - type to test. Should not be null.
Returns:
true if it should be excluded from MarshalledValue wrapping.

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