com.sleepycat.persist.model
Enum Relationship

java.lang.Object
  java.lang.Enum<Relationship>
      com.sleepycat.persist.model.Relationship

All Implemented Interfaces:

Serializable, Comparable<Relationship>

public enum Relationship
extends Enum<Relationship>

Defines the relationship between instances of the entity class and the secondary keys. This can be specified using a SecondaryKey.relate() annotation.

MANY_TO_ONE

public static final Relationship MANY_TO_ONE

Relates many entities to one secondary key.

The secondary index will have non-unique keys; in other words, duplicates will be allowed.

The secondary key field is singular, in other words, it may not be an array or collection type.

ONE_TO_MANY

public static final Relationship ONE_TO_MANY

Relates one entity to many secondary keys.

The secondary index will have unique keys, in other words, duplicates will not be allowed.

The secondary key field must be an array or collection type.

MANY_TO_MANY

public static final Relationship MANY_TO_MANY

Relates many entities to many secondary keys.

The secondary index will have non-unique keys, in other words, duplicates will be allowed.

The secondary key field must be an array or collection type.

ONE_TO_ONE

public static final Relationship ONE_TO_ONE

Relates one entity to one secondary key.

The secondary index will have unique keys, in other words, duplicates will not be allowed.

The secondary key field is singular, in other words, it may not be an array or collection type.

values

public static Relationship[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Relationship c : Relationship.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Relationship valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null