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Berkeley DB version 5.3.21 |
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SUMMARY: NESTED | ENUM CONSTANTS | FIELD | METHOD | DETAIL: ENUM CONSTANTS | FIELD | METHOD |
java.lang.Objectjava.lang.Enum<Relationship>
com.sleepycat.persist.model.Relationship
public enum Relationship
Defines the relationship between instances of the entity class and the
secondary keys. This can be specified using a SecondaryKey.relate()
annotation.
Enum Constant Summary | |
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MANY_TO_MANY
Relates many entities to many secondary keys. |
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MANY_TO_ONE
Relates many entities to one secondary key. |
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ONE_TO_MANY
Relates one entity to many secondary keys. |
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ONE_TO_ONE
Relates one entity to one secondary key. |
Method Summary | |
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static Relationship |
valueOf(String name)
Returns the enum constant of this type with the specified name. |
static Relationship[] |
values()
Returns an array containing the constants of this enum type, in the order they are declared. |
Methods inherited from class java.lang.Enum |
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clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf |
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Enum Constant Detail |
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public static final Relationship MANY_TO_ONE
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.
public static final Relationship ONE_TO_MANY
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.
public static final Relationship MANY_TO_MANY
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.
public static final Relationship ONE_TO_ONE
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.
Method Detail |
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public static Relationship[] values()
for (Relationship c : Relationship.values()) System.out.println(c);
public static Relationship valueOf(String name)
name
- the name of the enum constant to be returned.
IllegalArgumentException
- if this enum type has no constant
with the specified name
NullPointerException
- if the argument is null
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