ObjectDB Database Search

Jakarta Persistence (JPA) Method in jakarta.persistence.DiscriminatorColumn String columnDefinition (Optional) The SQL fragment that is used when generating the DDL for the discriminator column . Defaults to the provider-generated SQL to create a column of the specified discriminator type. Default: "" Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.ColumnResult Class type (Optional) The Java type to which the column type is to be mapped. If the type element is not specified, the default JDBC type mapping for the column is used. Default: void/class Since: Jakarta Persistence (JPA) 2.1

Jakarta Persistence (JPA) Method in jakarta.persistence.PrimaryKeyJoinColumn String columnDefinition (Optional) The SQL fragment that is used when generating the DDL for the column . This should not ... a column of the inferred type. Default: "" Since: Jakarta Persistence (JPA) 1.0

for the entity using a database identity column . May be used to generate primary keys of type Long

(increment) to the entity's version column . The persistence implementation is not required to support

Annotation Elements JoinColumn[] value The join columns that map the relationship. Since: Jakarta

Annotation Elements MapKeyJoinColumn[] value (Required) The map key join columns that are used to map

to PT_EMP.ADDR_ID fk @ Column (name = "WAGE") protected Float hourlyWage; public PartTimeEmployee

Jakarta Persistence (JPA) Enum jakarta.persistence.DiscriminatorType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.DiscriminatorType Implemented Interfaces: Constable , Comparable , Serializable Defines supported types of the discriminator column . See Also: DiscriminatorColumn

Jakarta Persistence (JPA) Annotation Type jakarta.persistence.EnumeratedValue Implemented Interfaces: Annotation Target: Field Specifies that an annotated field of a Java enum type is the source of database column values for an enumerated mapping. The annotated field must be declared final

(Required) The names of the column which make up the constraint. Since: Jakarta Persistence (JPA) 1.0

an association or element collection for which an order column has been defined. Returns: expression

by the Column and JoinColumn annotations and constraints entailed by primary key mappings. Defaults

Jakarta Persistence (JPA) Method in jakarta.persistence.UniqueConstraint String[] columnNames (Required) The names of the column which make up the constraint. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.TableGenerator String valueColumnName (Optional) Name of the column that stores the last value generated. Defaults to a provider-chosen name. Default: "" Since: Jakarta Persistence (JPA) 1.0

the primary key column of the generator table Default: "" Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.TableGenerator int initialValue (Optional) The initial value to be used to initialize the column that stores the last value generated. Default: 0 Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.TableGenerator String pkColumnName (Optional) Name of the primary key column in the table. Defaults to a provider-chosen name. Default: "" Since: Jakarta Persistence (JPA) 1.0

element collection for which an order column has been defined. Returns: expression denoting the index. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.Table UniqueConstraint[] uniqueConstraints (Optional) Unique constraints to be placed on the table. These are only used if table generation is in effect. These constraints apply in addition to any constraints specified by the Column

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityResult FieldResult[] fields Maps the columns specified in the SELECT list of the query to the properties or fields of the entity class. Default: {} Since: Jakarta Persistence (JPA) 1.0

is determined by the value held by a discriminator column . Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.InheritanceType TABLE_PER_CLASS A table for each concrete entity class. Each concrete class in the hierarchy has its own table, and each entity instance is stored as a single table row. No discriminator column is necessary. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OrderColumn String name (Optional) The name of the ordering column . Defaults to the concatenation of the name of the referencing property or field; " _ "; " ORDER ". Default: "" Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OrderColumn boolean nullable (Optional) Whether the database column is nullable. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OrderColumn boolean insertable (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.GenerationType IDENTITY Indicates that the persistence provider must assign primary keys for the entity using a database identity column . May be used to generate primary keys of type Long , Integer , long , or int . Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OrderColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.OrderColumn String options (Optional) A SQL fragment appended to the generated DDL which declares this column . May not be used in conjunction with OrderColumn.columnDefinition . Default: "" Since: Jakarta Persistence (JPA) 3.2

.entities , NamedNativeQuery.classes , and NamedNativeQuery. columns may be used to specify a result set

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyColumn boolean nullable (Optional) Whether the database column is nullable. Default: false Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyColumn boolean insertable (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.ManyToOne boolean optional (Optional) Whether the association is optional. If set to false then a non-null relationship must always exist. May be used in schema generation to infer that the mapped foreign key column is not null . Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyColumn String options (Optional) A SQL fragment appended to the generated DDL which declares this column . May not be used in conjunction with MapKeyColumn.columnDefinition . Default: "" Since: Jakarta Persistence (JPA) 3.2

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyColumn String table (Optional) The name of the table that contains the column . Defaults: If the map key is for an element collection, the name of the collection table for the map value. If the map key is for a OneToMany or ManyToMany

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyJoinColumn boolean insertable (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyJoinColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyJoinColumn String options (Optional) A SQL fragment appended to the generated DDL which declares this column . May not be used in conjunction with MapKeyJoinColumn.columnDefinition . Default: "" Since: Jakarta Persistence (JPA) 3.2

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyJoinColumn boolean nullable (Optional) Whether the foreign key column is nullable. Default: false Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.MapKeyJoinColumns MapKeyJoinColumn[] value (Required) The map key join columns that are used to map to the entity that is the map key. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn String options (Optional) A SQL fragment appended to the generated DDL which declares this column . May not be used in conjunction with JoinColumn.columnDefinition . Default: "" Since: Jakarta Persistence (JPA) 3.2

to explicitly specify this for a join column that corresponds to a primary key

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn boolean nullable (Optional) Whether the foreign key column is nullable. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn boolean insertable (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Default: true Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn CheckConstraint[] check (Optional) Check constraints to be applied to the column . These are only used if table generation is in effect. Default: {} Since: Jakarta Persistence (JPA) 3.2

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumn String comment (Optional) A comment to be applied to the column . This is only used if table generation is in effect. Default: "" Since: Jakarta Persistence (JPA) 3.2

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinColumns JoinColumn[] value The join columns that map the relationship. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.JoinTable JoinColumn[] joinColumns (Optional) The foreign key columns of the join table which reference the primary table of the entity owning the association. (I.e. the owning side of the association). Uses the same defaults as