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testing for equality. Since: Jakarta Persistence (JPA) 3.2 Fetch fetch ( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Inherited from FetchParent Parameters: attribute - target of the join Returns: the resulting fetch join. Since: Jakarta

( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Inherited from FetchParent Parameters: attribute - target of the join Returns: the resulting fetch join. Since: Jakarta Persistence (JPA) 1.0 Fetch fetch ( SingularAttribute attribute

, embeddables, and collections belonging to the type, and for Path s of attributes belonging ... . Since: Jakarta Persistence (JPA) 3.2 Fetch fetch ( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Inherited from FetchParent

fetch ( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Inherited from FetchParent Parameters: attribute - target of the join Returns ... attribute , JoinType jt ) Create a fetch join to the specified single-valued attribute using the given join

" is specified (the default is false ). The optional name attribute has no specific role ... on more than one persistent field. It is defined by specifying multiple fields in the members attribute ... explicitly in the members attribute , as shown above, the @Index or @Unique annotation can be attached

, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices ... copy of the attribution notices contained within such NOTICE file, excluding those notices ... are for informational purposes only and do not modify the License. You may add Your own attribution notices

Parameters: - The type containing the represented attribute - The type of the represented attribute Super Interfaces: Attribute , Bindable Instances of the type SingularAttribute represents persistent single ... is PLURAL_ ATTRIBUTE , the Java element type is returned. If the bindable type is SINGULAR_ ATTRIBUTE

specifies how clients can connect to the server: The port attribute specifies a TPC port ... when connecting to the database (as explained in the JPA Overview section in chapter 3). The max attribute ... connections limit. The element The element has one attribute , path , which specifies the location

;  The  url   attribute of the element defines a master database. As demonstrated above, a full URL has to be specified including user and password attributes . The slave server uses ... the location of the master server on port 6000. Notice that the specified user and password attributes

the allocationSize attribute . It is possible that some of the IDs in a given allocation will not be used ... difference is related to the initial value attribute . Whereas the SEQUENCE strategy maintains ... . The implication for the initialValue attribute is that if you want sequence numbers to start with 1 in the TABLE

rules apply to all the relevant configuration elements and attributes : $objectdb , representing ... path attribute value in the configuration file. The mb and kb suffixes, representing megabytes and kilobytes (respectively), can be used in any size value attribute in the configuration file

contains the following element: The enabled attribute of the ssl element (whose value is "true" or ... the enabled attribute of the ssl  element has to be set to true . Every Keystore / Truststore file is represented by a separate child element with two required attributes : path , which specifies

would otherwise apply. The Convert annotation should not be used to specify conversion of id attributes , of version attributes , of relationship attributes , or of attributes explicitly declared as Enumerated or ... may be applied to: a basic attribute , or a collection attribute of any type other than Map , in which case

Interfaces: PluralAttribute , Attribute , Bindable Instances of the type ListAttribute represent persistent List -valued attributes . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Class ... is PLURAL_ ATTRIBUTE , the Java element type is returned. If the bindable type is SINGULAR_ ATTRIBUTE or

Collection Super Interfaces: PluralAttribute , Attribute , Bindable Instances of the type CollectionAttribute represent persistent Collection -valued attributes . Since: Jakarta Persistence (JPA) 2.0 Public ... . If the bindable type of the object is PLURAL_ ATTRIBUTE , the Java element type is returned. If the bindable

: PluralAttribute , Attribute , Bindable Instances of the type SetAttribute represent persistent Set -valued attributes . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Class ... is PLURAL_ ATTRIBUTE , the Java element type is returned. If the bindable type is SINGULAR_ ATTRIBUTE or

of the key of the represented Map Super Interfaces: PluralAttribute , Attribute , Bindable Instances of the type MapAttribute represent persistent Map -valued attributes . Since: Jakarta Persistence (JPA ... object. If the bindable type of the object is PLURAL_ ATTRIBUTE , the Java element type is returned

- The type of the represented collection Super Interfaces: Attribute , Bindable Instances of the type PluralAttribute represent persistent collection-valued attributes . Since: Jakarta Persistence (JPA ... object. If the bindable type of the object is PLURAL_ ATTRIBUTE , the Java element type is returned

the load state of a given persistent attribute of an entity belonging to the persistence unit. Overrides PersistenceUtil.isLoaded Parameters: attributeName - name of attribute whose load state is to be determined entity - entity instance containing the attribute Returns: false if entity's state

-fetched association or attribute . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Fetch fetch ( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Inherited from FetchParent Parameters: attribute - target of the join Returns

Persistence (JPA) 1.0 CriteriaUpdate set ( SingularAttribute attribute , X value ) Update the value of the specified attribute . Parameters: attribute - attribute to be updated value - new value Returns ... ( SingularAttribute attribute , Expression value ) Update the value of the specified attribute . Parameters: attribute

( SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Parameters: attribute - target of the join Returns: the resulting fetch join. Since: Jakarta Persistence (JPA) 1.0 Fetch fetch ( SingularAttribute attribute , JoinType jt ) Create a fetch join

or compound attribute path from a bound type or collection, and is a "primitive" expression ... (JPA) 3.2 Path get ( SingularAttribute attribute ) Create a path corresponding to the referenced single-valued attribute . Parameters: attribute - single-valued attribute Returns: path corresponding

must automatically apply the converter to every mapped attribute of the specified target type belonging to any entity in the persistence unit, except for attributes for which conversion is overridden by means ... auto-apply conversion on a per- attribute basis. In determining whether a converter applies

on a different physical device by setting the path attribute in the configuration . The recording

can be set explicitly by using the name attribute of the Entity annotation: @Entity ( name ="MyName

The JPA Metamodel API, which is introduced in JPA 2.0, enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API. The main interface of the JPA Metamodel API is: Types (mainly classes) and attributes (persistent field and properties

configuration :       The level2 attribute determines the size

ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's support of the JPA and JDO APIs. Fundamental features of relational databases (e.g. primary keys, derived attributes , grouping queries and aggregate queries) which are usually missing from Object Oriented

A persistence unit is defined by a persistence-unit XML element. The required name attribute ( “my-pu

an attribute of a preceding variable in the FROM clause) are represented by the Join subinterface

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of the attribute . Represents an attribute node of an entity graph. See Also: EntityGraph Subgraph ... getAttributeName () Return the name of the attribute corresponding to the attribute node. Returns: name of the attribute . Since: Jakarta Persistence (JPA) 1.0 Map getKeySubgraphs () Return a map of subgraphs

to the root entity of the graph, and specifies the limits of the graph of associated attributes and entities ... Persistence (JPA) 1.0 NamedAttributeNode[] attributeNodes (Optional) A list of attributes of the entity ... includeAllAttributes (Optional) Includes all of the attributes of the annotated entity class as attribute nodes

: Annotation Target: Method, Field Designates a ManyToOne or OneToOne relationship attribute that provides the mapping for an EmbeddedId primary key, an attribute within an EmbeddedId primary key, or a simple primary key of the parent entity. The value element specifies the attribute within a composite key

of the entity attribute Interface implemented by custom attribute converters . A converter is a class ... Methods Y convertToDatabaseColumn ( X attribute ) Converts the value stored in the entity attribute into the data representation to be stored in the database. Parameters: attribute - the entity

is retrieved from the application scope attribute , and then an EntityManager (representing a database ... entity objects are retrieved from the database and stored in the request's "guest" attribute ... uses the "guest" attribute to generate the page output. Finally, the database connection (including

on every http request: The EntityManagerFactory is retrieved from the application scope attribute ... and stored in the request's "guest" attribute . Then the processing is forwarded to the JSP page (which is presented in the next tutorial step). The JSP uses the "guest" attribute to generate the page output

it as an application scope attribute in the servlet context - when the web application starts ( contextInitialized ). Retrieves the EntityManagerFactory from the application scope attribute and closes

from the database and stored in the request's "guest" attribute . Then the processing is forwarded to the JSP page (which is presented in the next tutorial step). The JSP uses the "guest" attribute

and creates an EntityManagerFactory instance and stores it as an application scope attribute in ... the EntityManagerFactory from the application scope attribute and closes the EntityManagerFactory and the database

"guest" attribute . Then the processing is forwarded to the JSP page (which is presented in the next tutorial step). The JSP uses the "guest" attribute to generate the page output. Notice that operations

that have already signed (which are retrieved from the request's guestDao attribute that is set by

a request attribute (whose name is "guestDao" and its value is guestDao ). The next step is 

that have already signed (which are retrieved from the request's "guests" attribute that is set by the servlet in

( "guest.jsp" ) and passes the GuestDao component to the JSP as a request attribute (whose name

that have already signed (which are retrieved from the request's "guests" attribute that is set by the servlet in

from the request's "guests" attribute that is set by the servlet in the previous step). The next step

the request's  guestDao attribute that is set by the controller in the previous step

" attribute that is set by the servlet in the previous step). The next step (and the last one in this tutorial) is running the web application .