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The Java Persistence API (JPA) : a standard interface-based Java model abstraction of persistence, developed by the JCP.
@(#)orm_2_0.xsd 2.0 August 27 2008
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The entity-mappings element is the root element of an mapping
file. It contains the following four types of elements:
1. The persistence-unit-metadata element contains metadata
for the entire persistence unit. It is undefined if this element
occurs in multiple mapping files within the same persistence unit.
2. The package, schema, catalog and access elements apply to all of
the entity, mapped-superclass and embeddable elements defined in
the same file in which they occur.
3. The sequence-generator, table-generator, named-query,
named-native-query and sql-result-set-mapping elements are global
to the persistence unit. It is undefined to have more than one
sequence-generator or table-generator of the same name in the same
or different mapping files in a persistence unit. It is also
undefined to have more than one named-query, named-native-query, or
result-set-mapping of the same name in the same or different mapping
files in a persistence unit.
4. The entity, mapped-superclass and embeddable elements each define
the mapping information for a managed persistent class. The mapping
information contained in these elements may be complete or it may
be partial.
Metadata that applies to the persistence unit and not just to
the mapping file in which it is contained.
If the xml-mapping-metadata-complete element is specified,
the complete set of mapping metadata for the persistence unit
is contained in the XML mapping files for the persistence unit.
These defaults are applied to the persistence unit as a whole
unless they are overridden by local annotation or XML
element settings.
schema - Used as the schema for all tables, secondary tables,
collection tables, sequence generators, and table generators
that apply to the persistence unit
catalog - Used as the catalog for all tables, secondary tables,
collection tables, sequence generators, and table generators
that apply to the persistence unit
delimited-identifiers - Used to treat database identifiers as
delimited identifiers.
access - Used as the access type for all managed classes in
the persistence unit
cascade-persist - Adds cascade-persist to the set of cascade options
in all entity relationships of the persistence unit
entity-listeners - List of default entity listeners to be invoked
on each entity in the persistence unit.
Defines the settings and mappings for an entity. Is allowed to be
sparsely populated and used in conjunction with the annotations.
Alternatively, the metadata-complete attribute can be used to
indicate that no annotations on the entity class (and its fields
or properties) are to be processed. If this is the case then
the defaulting rules for the entity and its subelements will
be recursively applied.
@Target(TYPE) @Retention(RUNTIME)
public @interface Entity {
String name() default "";
}
This element determines how the persistence provider accesses the
state of an entity or embedded object.
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
public @interface AssociationOverride {
String name();
JoinColumn[] joinColumns() default{};
JoinTable joinTable() default @JoinTable;
}
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
public @interface AttributeOverride {
String name();
Column column();
}
This element contains the entity field or property mappings.
It may be sparsely populated to include only a subset of the
fields or properties. If metadata-complete for the entity is true
then the remainder of the attributes will be defaulted according
to the default rules.
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Basic {
FetchType fetch() default EAGER;
boolean optional() default true;
}
public enum CascadeType { ALL, PERSIST, MERGE, REMOVE, REFRESH};
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface CollectionTable {
String name() default "";
String catalog() default "";
String schema() default "";
JoinColumn[] joinColumns() default {};
UniqueConstraint[] uniqueConstraints() default {};
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Column {
String name() default "";
boolean unique() default false;
boolean nullable() default true;
boolean insertable() default true;
boolean updatable() default true;
String columnDefinition() default "";
String table() default "";
int length() default 255;
int precision() default 0; // decimal precision
int scale() default 0; // decimal scale
}
@Target({}) @Retention(RUNTIME)
public @interface ColumnResult {
String name();
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface DiscriminatorColumn {
String name() default "DTYPE";
DiscriminatorType discriminatorType() default STRING;
String columnDefinition() default "";
int length() default 31;
}
public enum DiscriminatorType { STRING, CHAR, INTEGER };
@Target({TYPE}) @Retention(RUNTIME)
public @interface DiscriminatorValue {
String value();
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface ElementCollection {
Class targetClass() default void.class;
FetchType fetch() default LAZY;
}
Defines the settings and mappings for embeddable objects. Is
allowed to be sparsely populated and used in conjunction with
the annotations. Alternatively, the metadata-complete attribute
can be used to indicate that no annotations are to be processed
in the class. If this is the case then the defaulting rules will
be recursively applied.
@Target({TYPE}) @Retention(RUNTIME)
public @interface Embeddable {}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Embedded {}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface EmbeddedId {}
Defines an entity listener to be invoked at lifecycle events
for the entities that list this listener.
@Target({TYPE}) @Retention(RUNTIME)
public @interface EntityListeners {
Class[] value();
}
@Target({}) @Retention(RUNTIME)
public @interface EntityResult {
Class entityClass();
FieldResult[] fields() default {};
String discriminatorColumn() default "";
}
public enum EnumType {
ORDINAL,
STRING
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Enumerated {
EnumType value() default ORDINAL;
}
public enum FetchType { LAZY, EAGER };
@Target({}) @Retention(RUNTIME)
public @interface FieldResult {
String name();
String column();
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface GeneratedValue {
GenerationType strategy() default AUTO;
String generator() default "";
}
public enum GenerationType { TABLE, SEQUENCE, IDENTITY, AUTO };
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Id {}
@Target({TYPE}) @Retention(RUNTIME)
public @interface IdClass {
Class value();
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface DatastoreId {}
@Target({TYPE}) @Retention(RUNTIME)
public @interface Inheritance {
InheritanceType strategy() default SINGLE_TABLE;
}
public enum InheritanceType
{ SINGLE_TABLE, JOINED, TABLE_PER_CLASS};
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface JoinColumn {
String name() default "";
String referencedColumnName() default "";
boolean unique() default false;
boolean nullable() default true;
boolean insertable() default true;
boolean updatable() default true;
String columnDefinition() default "";
String table() default "";
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface JoinTable {
String name() default "";
String catalog() default "";
String schema() default "";
JoinColumn[] joinColumns() default {};
JoinColumn[] inverseJoinColumns() default {};
UniqueConstraint[] uniqueConstraints() default {};
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Lob {}
public enum LockModeType { READ, WRITE, OPTIMISTIC,
OPTIMISTIC_FORCE_INCREMENT, PESSIMISTIC_READ, PESSIMISTIC_WRITE,
PESSIMISTIC_FORCE_INCREMENT, NONE};
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface ManyToMany {
Class targetEntity() default void.class;
CascadeType[] cascade() default {};
FetchType fetch() default LAZY;
String mappedBy() default "";
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface ManyToOne {
Class targetEntity() default void.class;
CascadeType[] cascade() default {};
FetchType fetch() default EAGER;
boolean optional() default true;
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface MapKey {
String name() default "";
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface MapKeyClass {
Class value();
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface MapKeyColumn {
String name() default "";
boolean unique() default false;
boolean nullable() default false;
boolean insertable() default true;
boolean updatable() default true;
String columnDefinition() default "";
String table() default "";
int length() default 255;
int precision() default 0; // decimal precision
int scale() default 0; // decimal scale
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface MapKeyJoinColumn {
String name() default "";
String referencedColumnName() default "";
boolean unique() default false;
boolean nullable() default false;
boolean insertable() default true;
boolean updatable() default true;
String columnDefinition() default "";
String table() default "";
}
Defines the settings and mappings for a mapped superclass. Is
allowed to be sparsely populated and used in conjunction with
the annotations. Alternatively, the metadata-complete attribute
can be used to indicate that no annotations are to be processed
If this is the case then the defaulting rules will be recursively
applied.
@Target(TYPE) @Retention(RUNTIME)
public @interface MappedSuperclass{}
@Target({TYPE}) @Retention(RUNTIME)
public @interface NamedNativeQuery {
String name();
String query();
QueryHint[] hints() default {};
Class resultClass() default void.class;
String resultSetMapping() default ""; //named SqlResultSetMapping
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface NamedQuery {
String name();
String query();
LockModeType lockMode() default NONE;
QueryHint[] hints() default {};
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface OneToMany {
Class targetEntity() default void.class;
CascadeType[] cascade() default {};
FetchType fetch() default LAZY;
String mappedBy() default "";
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface OneToOne {
Class targetEntity() default void.class;
CascadeType[] cascade() default {};
FetchType fetch() default EAGER;
boolean optional() default true;
String mappedBy() default "";
boolean orphanRemoval() default false;
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface OrderBy {
String value() default "";
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface OrderColumn {
String name() default "";
boolean nullable() default true;
boolean insertable() default true;
boolean updatable() default true;
String columnDefinition() default "";
String table() default "";
}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PostLoad {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PostPersist {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PostRemove {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PostUpdate {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PrePersist {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PreRemove {}
@Target({METHOD}) @Retention(RUNTIME)
public @interface PreUpdate {}
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
public @interface PrimaryKeyJoinColumn {
String name() default "";
String referencedColumnName() default "";
String columnDefinition() default "";
}
@Target({}) @Retention(RUNTIME)
public @interface QueryHint {
String name();
String value();
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface SecondaryTable {
String name();
String catalog() default "";
String schema() default "";
PrimaryKeyJoinColumn[] pkJoinColumns() default {};
UniqueConstraint[] uniqueConstraints() default {};
}
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
public @interface SequenceGenerator {
String name();
String sequenceName() default "";
String catalog() default "";
String schema() default "";
int initialValue() default 1;
int allocationSize() default 50;
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface SqlResultSetMapping {
String name();
EntityResult[] entities() default {};
ColumnResult[] columns() default {};
}
@Target({TYPE}) @Retention(RUNTIME)
public @interface Table {
String name() default "";
String catalog() default "";
String schema() default "";
UniqueConstraint[] uniqueConstraints() default {};
}
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME)
public @interface TableGenerator {
String name();
String table() default "";
String catalog() default "";
String schema() default "";
String pkColumnName() default "";
String valueColumnName() default "";
String pkColumnValue() default "";
int initialValue() default 0;
int allocationSize() default 50;
UniqueConstraint[] uniqueConstraints() default {};
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Temporal {
TemporalType value();
}
public enum TemporalType {
DATE, // java.sql.Date
TIME, // java.sql.Time
TIMESTAMP // java.sql.Timestamp
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Transient {}
@Target({}) @Retention(RUNTIME)
public @interface UniqueConstraint {
String name() default "";
String[] columnNames();
}
@Target({METHOD, FIELD}) @Retention(RUNTIME)
public @interface Version {}
@Target({TYPE}) @Retention(RUNTIME)
public @interface SurrogateVersion {}
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