com.sleepycat.persist.evolve
Class EntityConverter

java.lang.Object
  com.sleepycat.persist.evolve.Mutation
      com.sleepycat.persist.evolve.Converter
          com.sleepycat.persist.evolve.EntityConverter

All Implemented Interfaces:

Serializable

public class EntityConverter
extends Converter

A subclass of Converter that allows specifying keys to be deleted.

When a Converter is used with an entity class, secondary keys cannot be automatically deleted based on field deletion, because field Deleter objects are not used in conjunction with a Converter mutation. The EntityConverter can be used instead of a plain Converter to specify the key names to be deleted.

It is not currently possible to rename or insert secondary keys when using a Converter mutation with an entity class.

See Also:

Converter, Class Evolution, Serialized Form

EntityConverter

public EntityConverter(String entityClassName,
                       int classVersion,
                       Conversion conversion,
                       Set<String> deletedKeys)

Creates a mutation for converting all instances of the given entity class version to the current version of the class.

getDeletedKeys

public Set<String> getDeletedKeys()

Returns the set of key names that are to be deleted.

equals

public boolean equals(Object other)

Returns true if the deleted and renamed keys are equal in this object and given object, and if the Converter.equals(java.lang.Object) superclass method returns true.

Overrides:

equals in class Converter

hashCode

public int hashCode()

Overrides:

hashCode in class Converter

toString

public String toString()

Overrides:

toString in class Converter