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java.lang.Objectcom.sleepycat.persist.evolve.Mutation
com.sleepycat.persist.evolve.Deleter
public class Deleter
A mutation for deleting an entity class or field.
WARNING: The data for the deleted class or field will be
 destroyed and will be recoverable only by restoring from backup.  If you
 wish to convert the instance data to a different type or format, use a
 Conversion mutation instead.
For example, to delete a field:
  package my.package;
  // The old class.  Version 0 is implied.
  //
  @Entity
  class Person {
      String name;
      String favoriteColors;
  }
  // The new class.  A new version number must be assigned.
  //
  @Entity(version=1)
  class Person {
      String name;
  }
  // Add the mutation for deleting a field.
  //
  Mutations mutations = new Mutations();
  mutations.addDeleter(new Deleter(Person.class.getName(), 0,
                                   "favoriteColors");
  // Configure the mutations as described here.
 To delete an entity class:
  package my.package;
  // The old class.  Version 0 is implied.
  //
  @Entity
  class Statistics {
      ...
  }
  // Add the mutation for deleting a class.
  //
  Mutations mutations = new Mutations();
  mutations.addDeleter(new Deleter("my.package.Statistics", 0));
  // Configure the mutations as described here.
Class Evolution, 
Serialized Form| Constructor Summary | |
|---|---|
| Deleter(String className,
        int classVersion)Creates a mutation for deleting an entity class. | |
| Deleter(String declaringClass,
        int declaringClassVersion,
        String fieldName)Creates a mutation for deleting the given field from all instances of the given class version. | |
| Method Summary | |
|---|---|
|  String | toString() | 
| Methods inherited from class com.sleepycat.persist.evolve.Mutation | 
|---|
| equals, getClassName, getClassVersion, getFieldName, hashCode | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, finalize, getClass, notify, notifyAll, wait, wait, wait | 
| Constructor Detail | 
|---|
public Deleter(String className,
               int classVersion)
public Deleter(String declaringClass,
               int declaringClassVersion,
               String fieldName)
| Method Detail | 
|---|
public String toString()
toString in class Mutation| 
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