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6.4.4. Registering Advanced Externalizers
In JBoss Data Grid, AdvancedExternalizer implementation can be registered using XML or Programmatic configuration, or via annotation.
An Advanced Externalizer implementation for Person object stored as a static inner class can be configured programmatically or declaratively.
Declarative Configuration:
The following is an example of a declarative configuration for an advanced Externalizer implementation:
<infinispan>
<global>
<serialization>
<advancedExternalizers>
<advancedExternalizer externalizerClass="Person$PersonExternalizer"/>
</advancedExternalizers>
</serialization>
</global>
...
</infinispan>
Programmatic Configuration:
The following is an example of a programmatic configuration for an advanced Externalizer implementation:
GlobalConfigurationBuilder builder = ...
builder.serialization()
.addAdvancedExternalizer(new Person.PersonExternalizer());
An AdvancedExternalizer implementation must be associated with an identifier, regardless of the configuration method used.
If an identifier in an AdvancedExternalizer implementation is defined using both XML/Programmatic configuration as well as annotation, XML/Programmatic defined value will be used.
The following example shows an Externalizer where the identifier is defined at the time of registration:
Declarative Configuration:
The following is a declarative configuration for the location of the identifier definition during registration:
<infinispan>
<global>
<serialization>
<advancedExternalizers>
<advancedExternalizer id="123"
externalizerClass="Person$PersonExternalizer"/>
</advancedExternalizers>
</serialization>
</global>
...
</infinispan>
Programmatic Configuration:
The following is a programmatic configuration for the location of the identifier definition during registration:
GlobalConfigurationBuilder builder = ...
builder.serialization()
.addAdvancedExternalizer(123, new Person.PersonExternalizer());
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