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JPA Method in javax.persistence.metamodel.Attribute boolean isCollection () Is the attribute collection-valued (represents a Collection, Set, List, or Map). Return: boolean indicating whether the attribute is collection-valued Since: JPA 2.0

JPA Method in javax.persistence.metamodel.IdentifiableType boolean hasSingleIdAttribute () Whether the identifiable type has a single id attribute. Returns true for a simple id or embedded id; returns false for an idclass. Return: boolean indicating whether the identifiable type has a single id attribute Since: JPA 2.0

JPA Method in javax.persistence.metamodel.IdentifiableType boolean hasVersionAttribute () Whether the identifiable type has a version attribute. Return: boolean indicating whether the identifiable type has a version attribute Since: JPA 2.0

JPA Method in javax.persistence.metamodel.SingularAttribute boolean isId () Is the attribute an id attribute. This method will return true if the attribute is an attribute that corresponds to a simple id, an embedded id, or an attribute of an id class. Return: boolean indicating whether the attribute is an id Since: JPA 2.0

JPA Method in javax.persistence.metamodel.SingularAttribute boolean isVersion () Is the attribute a version attribute. Return: boolean indicating whether the attribute is a version attribute Since: JPA 2.0

JPA Method in javax.persistence.metamodel.SingularAttribute boolean isOptional () Can the attribute be null. Return: boolean indicating whether the attribute can be null Since: JPA 2.0

. Since: JPA 1.0 boolean optional default true (Optional) Defines whether the value of the field or property

JPA Annotation Attribute in javax.persistence.Basic boolean optional default true (Optional) Defines whether the value of the field or property may be null. This is a hint and is disregarded for primitive types; it may be used in schema generation. If not specified, defaults to true . Since: JPA 1.0

article explains how to use Cacheable . Public Annotation Attributes boolean value default true

JPA Annotation Attribute in javax.persistence.Cacheable boolean value default true (Optional) Whether or not the entity should be cached. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.Column boolean unique default false (Optional) Whether the column is a unique key. This is a shortcut for the UniqueConstraint annotation at the table level and is useful for when the unique key constraint corresponds to only a single column

JPA Annotation Attribute in javax.persistence.Column boolean nullable default true (Optional) Whether the database column is nullable. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.Column boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.Column boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.Convert boolean disableConversion default false Used to disable an auto-apply or inherited converter. If disableConversion is true, the converter element should not be specified. Since: JPA 2.1

. See Also: AttributeConverter Convert Since: JPA 2.1 Public Annotation Attributes boolean autoApply default false Since: JPA 2.1

JPA Annotation Attribute in javax.persistence.Converter boolean autoApply default false Since: JPA 2.1

JPA Method in javax.persistence.EntityManager boolean isOpen () Determine whether the entity manager is open. Return: true until the entity manager has been closed Since: JPA 1.0

2.1 boolean unique default false (Optional) Whether the index is unique. Since: JPA 2.1

JPA Annotation Attribute in javax.persistence.Index boolean unique default false (Optional) Whether the index is unique. Since: JPA 2.1

JPA Annotation Attribute in javax.persistence.JoinColumn boolean unique default false (Optional) Whether the property is a unique key. This is a shortcut for the UniqueConstraint annotation at the table level and is useful for when the unique key constraint is only a single field. It is not

JPA Annotation Attribute in javax.persistence.JoinColumn boolean nullable default true (Optional) Whether the foreign key column is nullable. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.JoinColumn boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.JoinColumn boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 1.0

is a hint to the persistence provider runtime. Since: JPA 1.0 boolean optional default true

JPA Annotation Attribute in javax.persistence.ManyToOne boolean optional default true (Optional) Whether the association is optional. If set to false then a non-null relationship must always exist. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.MapKeyColumn boolean unique default false (Optional) Whether the column is a unique key. This is a shortcut for the UniqueConstraint annotation at the table level and is useful for when the unique key constraint corresponds to only a single column

JPA Annotation Attribute in javax.persistence.MapKeyColumn boolean nullable default false (Optional) Whether the database column is nullable. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyColumn boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyColumn boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyJoinColumn boolean unique default false (Optional) Whether the property is a unique key. This is a shortcut for the UniqueConstraint annotation at the table level and is useful for when the unique key constraint is only a single field. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyJoinColumn boolean nullable default false (Optional) Whether the foreign key column is nullable. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyJoinColumn boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.MapKeyJoinColumn boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 2.0

that are included in this graph. Since: JPA 2.1 boolean includeAllAttributes default false (Optional

JPA Annotation Attribute in javax.persistence.NamedEntityGraph boolean includeAllAttributes default false (Optional) Includes all of the attributes of the annotated entity class as attribute nodes in the NamedEntityGraph without the need to explicitly list them. Included attributes

the relationship is unidirectional. Since: JPA 1.0 boolean orphanRemoval default false (Optional

JPA Annotation Attribute in javax.persistence.OneToMany boolean orphanRemoval default false (Optional) Whether to apply the remove operation to entities that have been removed from the relationship and to cascade the remove operation to those entities. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.OneToOne boolean optional default true (Optional) Whether the association is optional. If set to false then a non-null relationship must always exist. Since: JPA 1.0

JPA Annotation Attribute in javax.persistence.OneToOne boolean orphanRemoval default false (Optional) Whether to apply the remove operation to entities that have been removed from the relationship and to cascade the remove operation to those entities. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.OrderColumn boolean nullable default true (Optional) Whether the database column is nullable. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.OrderColumn boolean insertable default true (Optional) Whether the column is included in SQL INSERT statements generated by the persistence provider. Since: JPA 2.0

JPA Annotation Attribute in javax.persistence.OrderColumn boolean updatable default true (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Since: JPA 2.0

JPA Method in javax.persistence.PersistenceUnitUtil boolean isLoaded (   Object entity,    String attributeName ) Determine the load state of a given persistent attribute of an entity belonging to the persistence unit. Parameters: entity - entity instance

JPA Method in javax.persistence.PersistenceUnitUtil boolean isLoaded (   Object entity ) Determine the load state of an entity belonging to the persistence unit. This method can be used to determine the load state of an entity passed as a reference. An entity is considered loaded

JPA Method in javax.persistence.PersistenceUtil boolean isLoaded (   Object entity,    String attributeName ) Determine the load state of a given persistent attribute. Parameters: entity - entity containing the attribute attributeName - name of attribute

with a field in the candidate class. Valid field types are primitive types except boolean ; wrapper types except Boolean ; BigDecimal ; BigInteger ; String ; and Date . Parameters: ordering - the ordering specification. Since: JDO 1.0

JDO Interface StateInterrogationBooleanReturn This is an interface used to interrogate the state of an instance that does not implement PersistenceCapable. It is used for the methods that return a boolean value. Since: JDO 1.0 Public Methods Boolean is (Object pc,  StateInterrogation

JDO Method in javax.jdo.spi.StateManager boolean getBooleanField (   PersistenceCapable pc,    int field,     boolean  currentValue ) Return the value for the field. Parameters: pc - the calling PersistenceCapable instance field - the field

JDO Method in javax.jdo.spi.StateManager void setBooleanField (   PersistenceCapable pc,    int field,     boolean  currentValue,     boolean  newValue ) Mark the field as modified by the user. Parameters: pc - the calling