org.infinispan.distribution.ch
Class DefaultConsistentHash.Externalizer
java.lang.Object
org.infinispan.marshall.AbstractExternalizer<T>
org.infinispan.distribution.ch.AbstractWheelConsistentHash.Externalizer<DefaultConsistentHash>
org.infinispan.distribution.ch.DefaultConsistentHash.Externalizer
- All Implemented Interfaces:
- Externalizer<DefaultConsistentHash>
- Enclosing class:
- DefaultConsistentHash
public static class DefaultConsistentHash.Externalizer
- extends AbstractWheelConsistentHash.Externalizer<DefaultConsistentHash>
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DefaultConsistentHash.Externalizer
public DefaultConsistentHash.Externalizer()
instance
protected DefaultConsistentHash instance()
- Specified by:
instance
in class AbstractWheelConsistentHash.Externalizer<DefaultConsistentHash>
getId
public Integer getId()
- Description copied from interface:
Externalizer
- Returns an integer that identifies the externalizer type. This is used
at read time to figure out which
Externalizer
should read the
contents of the incoming buffer.
Using a positive integer allows for very efficient variable length
encoding of numbers, and it's much more efficient than shipping
Externalizer
implementation class information around. Negative
values are not allowed.
Implementers of this interface can use any positive integer as long as
it does not clash with any other identifier in the system. You can find
information on the pre-assigned identifier ranges in
here.
It's highly recommended that maintaining of these identifiers is done
in a centralized way and you can do so by making annotations reference
a set of statically defined identifiers in a separate class or
interface. Such class/interface gives a global view of the identifiers
in use and so can make it easier to assign new ids.
Implementors can optionally avoid giving a meaningful implementation to
this method (i.e. return null) and instead rely on XML or programmatic
configuration to provide the Externalizer id. If no id can be determined
via the implementation or XML/programmatic configuration, an error will
be reported. If an id has been defined both via the implementation and
XML/programmatic configuration, the value defined via XML/programmatic
configuration will be used ignoring the other.
- Specified by:
getId
in interface Externalizer<DefaultConsistentHash>
- Overrides:
getId
in class AbstractExternalizer<DefaultConsistentHash>
- Returns:
- A positive identifier for the Externalizer.
getTypeClasses
public Set<Class<? extends DefaultConsistentHash>> getTypeClasses()
- Description copied from interface:
Externalizer
- Returns a collection of Class instances representing the types that this
Externalizer can marshall. Clearly, empty sets are not allowed.
- Returns:
- A set containing the Class instances that can be marshalled.
Copyright © 2011 JBoss, a division of Red Hat. All Rights Reserved.