Class AbstractCopier<A>

java.lang.Object
com.github.benmanes.caffeine.jcache.copy.AbstractCopier<A>
All Implemented Interfaces:
Copier
Direct Known Subclasses:
JavaSerializationCopier
public abstract class AbstractCopier<A> extends Object implements Copier
A skeleton implementation where subclasses provide the serialization strategy. Serialization is not performed if the type is a known immutable, an array of known immutable types, or specially handled by a known cloning strategy.
Author:
ben.manes@gmail.com (Ben Manes)

  • Constructor Details

  • Method Details

    • javaImmutableClasses

      public static Set<Class<?>> javaImmutableClasses()
      Returns:
      the set of Java native classes that are immutable

    • javaDeepCopyStrategies

      public static Map<Class<?>, Function<Object,Object>> javaDeepCopyStrategies()
      Returns:
      the set of Java native classes that are deeply copied.

    • copy

      public <T> T copy(T object, ClassLoader classLoader)
      Description copied from interface: Copier
      Returns a deep copy of the object.
      Specified by:
      copy in interface Copier
      Type Parameters:
      T - the type of object being copied
      Parameters:
      object - the object to copy
      classLoader - the classloader to instantiate with
      Returns:
      a copy of the object

    • isImmutable

      protected boolean isImmutable(Class<?> clazz)
      Returns if the class is an immutable type and does not need to be copied.
      Parameters:
      clazz - the class of the object being copied
      Returns:
      if the class is an immutable type and does not need to be copied

    • canDeeplyCopy

      protected boolean canDeeplyCopy(Class<?> clazz)
      Returns if the class has a known deep copy strategy.
      Parameters:
      clazz - the class of the object being copied
      Returns:
      if the class has a known deep copy strategy

    • roundtrip

      protected <T> T roundtrip(T object, ClassLoader classLoader)
      Performs the serialization and deserialization, returning the copied object.
      Type Parameters:
      T - the type of object being copied
      Parameters:
      object - the object to serialize
      classLoader - the classloader to create the instance with
      Returns:
      the deserialized object

    • serialize

      protected abstract A serialize(Object object)
      Serializes the object.
      Parameters:
      object - the object to serialize
      Returns:
      the serialized bytes

    • deserialize

      protected abstract Object deserialize(A data, ClassLoader classLoader)
      Deserializes the data using the provided classloader.
      Parameters:
      data - the serialized bytes
      classLoader - the classloader to create the instance with
      Returns:
      the deserialized object