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51-100 of 200 resultsJPQL query to get entities that does not have a child entity in their child entities having status '%Started' and not '%Failed' and not '%Canceled' and not 'Finished'. I have entities for Job and Status with NamedQueries on Job entity and using TomEE for deployment. I am using following | |
EntityManager.getLockMode(entity) - JPA Method; entity ) Get the current lock mode for the entity instance. Parameters: entity - entity instance Return: lock mode Throws: TransactionRequiredException - if there is no transaction or if the entity ... is not a managed entity and a transaction is active Since: JPA 2.0 | |
PersistenceUnitUtil.isLoaded(entity,attributeName) - JPA Method; entity , String attributeName ) Determine the load state of a given persistent attribute of an entity belonging to the persistence unit. Parameters: entity - entity instance ... : false if entity's state has not been loaded or if the attribute state has not been loaded, else true Since: JPA 2.0 | |
PessimisticLockException.PessimisticLockException(message,cause,entity) - JPA Constructor JPA Constructor in javax.persistence.PessimisticLockException PessimisticLockException ( String message, Throwable cause, Object entity ... , and entity . Parameters: message - the detail message. cause - the cause. entity - the entity . Since: JPA 2.0 | |
PessimisticLockException.PessimisticLockException(entity) - JPA Constructor JPA Constructor in javax.persistence.PessimisticLockException PessimisticLockException ( Object entity ) Constructs a new PessimisticLockException exception with the specified entity . Parameters: entity - the entity . Since: JPA 2.0 | |
LockTimeoutException.LockTimeoutException(message,cause,entity) - JPA Constructor;String message, Throwable cause, Object entity ) Constructs a new LockTimeoutException exception with the specified detail message, cause, and entity . Parameters: message - the detail message. cause - the cause. entity - the entity . Since: JPA 2.0 | |
PersistenceUtil.isLoaded(entity,attributeName) - JPA Method JPA Method in javax.persistence.PersistenceUtil boolean isLoaded ( Object entity ... attribute. Parameters: entity - entity containing the attribute attributeName - name of attribute whose load state is to be determined Return: false if entity's state has not been loaded or if the attribute state has not been loaded, else true Since: JPA 2.0 | |
OptimisticLockException.OptimisticLockException(message,cause,entity) - JPA Constructor JPA Constructor in javax.persistence.OptimisticLockException OptimisticLockException ( String message, Throwable cause, Object entity ... , and entity . Parameters: message the - detail message. cause the - cause. entity the - entity . Since: JPA 1.0 | |
OptimisticLockException.OptimisticLockException(entity) - JPA Constructor JPA Constructor in javax.persistence.OptimisticLockException OptimisticLockException ( Object entity ) Constructs a new OptimisticLockException exception with the specified entity . Parameters: entity the - entity . Since: JPA 1.0 | |
javax.persistence.Entity.name JPA Annotation Attribute in javax.persistence. Entity String name default "" (Optional) The entity name. Defaults to the unqualified name of the entity class. This name is used to refer to the entity in queries. The name must not be a reserved literal in the Java Persistence query language. Since: JPA 1.0 | |
LockTimeoutException.LockTimeoutException(entity) - JPA Constructor JPA Constructor in javax.persistence.LockTimeoutException LockTimeoutException ( Object entity ) Constructs a new LockTimeoutException exception with the specified object. Parameters: entity - the entity . Since: JPA 2.0 | |
Auto Generated Values for entity objects with no primary key fields defined (as explained in the previous section ). The same ... @GeneratedValue with the AUTO strategy: @ Entity public class EntityWithAutoId1 { @Id @GeneratedValue ... definition is equivalent: @ Entity public class EntityWithAutoId2 { @Id @GeneratedValue long id | |
JPA Named Queries to exactly one entity class or mapped superclass - usually to the most relevant entity class ... carefully to avoid collision (e.g. by using the unique entity name as a prefix). It makes sense to add the above @NamedQuery to the Country entity class: @ Entity @NamedQuery ( name ="Country.findAll | |
DELETE Queries in JPA/JPQL As explained in chapter 2 , entity objects can be deleted from the database by: Retrieving the entity objects into an EntityManager . Removing these objects from the EntityManager   ... DELETE queries provide an alternative way for deleting entity objects. Unlike SELECT queries | |
javax.persistence.metamodel.Bindable | |
javax.persistence.SqlResultSetMapping.entities JPA Annotation Attribute in javax.persistence.SqlResultSetMapping EntityResult [] entities default {} Specifies the result set mapping to entities . Since: JPA 1.0 | |
javax.persistence.metamodel.Type | |
JPA Metamodel API. Three methods can be used to retrieve sets of types: // Get all the managed classes: // ( entity classes ... (); // Get all the entity classes: Set allEntityTypes = metamodel. getEntities (); // Get all the embeddable ... methods can be used to retrieve a specific type by its Class instance: // Get a managed type ( entity | |
ObjectDB Object Database Features). Up to 2,147,483,648 entity classes per database file. Up to 2,147,483,648 indices per database file. Up to 9,223,372,036,854,775,808 entity objects per database file. Unlimited database connections ... . Configurable - minimum/maximum connections and timeout. Caching L1 entity object cache | |
FROM clause (JPQL / Criteria API) are query identification variables that iterate over all the database objects of a specific entity class hierarchy (i.e. an entity class and all its descendant entity classes). Identification variables ... of an entity class in a JPQL query is the unqualified name of the class (e.g. just Country with no package | |
JPA Query Structure (JPQL / Criteria) classes and objects. For example, a JPQL query can retrieve and return entity objects ... elements such as names of entity classes and persistent fields, which are case sensitive. In addition ... over objects in the database. A query variable that is bound to an entity class is referred to as a range | |
JPA Class Enhancer ( entity classes , embeddable classes and mapped superclasses ), and is usually optional ... efficient tracking of persistent field modifications, avoiding the need for snapshot comparison of entities ... loading of entity objects. With no enhancement, only persistent collection and map fields | |
Eclipse Public License - v 1.0 entity that distributes the Program. "Licensed Patents" mean patent claims licensable by ... property rights of any other entity . Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise. As | |
Posting Sample Code. Whenever possible: Use a single Java file with one main class + static inner classes for entity ... (); } @ Entity public static class MyEntity ... warnings (There is no ID defined for this entity hierarchy, The class should have a no-arg public or | |
JPA Exceptions because of an attempt to store a new entity object with a primary key that is already in use by another existing entity object, the nested exception is: Other common causes for RollbackException are lock failures: Exceptions can also be thrown on an attempt to retrieve entity objects from the database. For example | |
Database Management Settings some ORM JPA providers) is defined in the entity class or not. It can be disabled by setting the  ... indexes are handled. When a new index is defined for an existing entity class that already has instances ... Removing ObjectDB evaluation restrictions (of 10 entity classes and 1,000,000 entity objects | |
Setting and Tuning of JPA Queries automatic optimistic locking to prevent concurrent changes to entity objects by multiple users. JPA 2 ... " . When LAZY is used result entity objects are returned as references (with no content). This could be useful when the shared L2 cache is enabled and entity objects may already be available in the cache | |
CRUD Database Operations with JPA it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... (); for (int i = 0; i = 100) { em. remove (p); // delete entity } else { p.setX(p.getX() + 100); // update entity } } em. getTransaction (). commit (); In the above example all the Point objects whose x | |
javax.persistence.EntityManager. An EntityManager instance is associated with a persistence context. A persistence context is a set of entity instances in which for any persistent entity identity there is a unique entity instance. Within the persistence context, the entity instances and their lifecycle are managed. The EntityManager API is used | |
Is ObjectDB scalable? What are its limitations? supports: Database file size up to 128 TB (= 131,072 GB = 134,217,728 MB). Up to 2,147,483,648 entity ... . Up to 9,223,372,036,854,775,808 entity objects per database file. Unlimited database connections (limited by operating system resources). | |
ObjectDB License Free License ObjectDB can be downloaded and used at no cost (including commercially) with the restriction of a maximum of 10 entity classes and one million entity objects per database file. This could be useful for small projects, academic assignments, evaluation and learning | |
Comparison in JPQL and Criteria API defined classes ( entity classes and embeddable classes) can be compared by using the equality operators (=, , == , != ). For entities , e1 = e2 if e1 and e2 have the same type and the same primary key value | |
JPA Persistence Unit A JPA Persistence Unit is a logical grouping of user defined persistable classes ( entity classes, embeddable classes and mapped superclasses) with related settings. Defining a persistence unit ... registration of all the user defined persistable classes ( entity classes, embeddable classes and mapped | |
Eclipse/JPA Spring MVC Web Tutorial that has signed the guestbook is represented by a Guest JPA entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need | |
Spring MVC and JPA Tutorial that has signed the guestbook is represented as Guest JPA entity object, and all Guest entity objects | |
Step 4: Add a Servlet Class the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database and stored in the request's "guest" attribute | |
Step 3: Add a Context Listener Class The Guest entity objects will be stored in an ObjectDB database, which will be represented by a JPA's EntityManagerFactory instance with a global application scope. We have to register ... the Enhancer to enhance the entity class, creates an EntityManagerFactory instance and stores | |
NetBeans/JPA Web Application Tutorial. Every visitor that has signed the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial | |
Java EE Web Tutorial is represented by a Guest entity object and all the Guest entity objects are stored in an ObjectDB | |
NetBeans/JPA Spring MVC Web Tutorial. Every visitor that has signed the guestbook is represented by a Guest JPA entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need | |
Eclipse/JPA Java EE Tutorial by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database | |
Eclipse/JPA Web Application Tutorial is managed by JPA. Every visitor that has signed the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software | |
JPA Web Application Tutorial by a Guest entity object and all the Guest entity objects are stored in an ObjectDB | |
NetBeans/JPA Java EE Tutorial the guestbook is represented by a Guest entity object and all the Guest entity objects are stored in | |
Step 4: Add a Servlet Class entity object is constructed and stored in the database. All the Guest entity objects are retrieved | |
Step 3: Add a Context Listener Class The Guest entity objects will be stored in an ObjectDB database, which will be represented by a JPA's EntityManagerFactory instance with a global application scope. We have to register ... ().getAttribute("emf"); emf.close(); } } The code above: Invokes the Enhancer to enhance the entity class | |
Step 4: Add a Servlet Class that will be added in the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database and stored in the request's | |
Step 4: Add a Servlet Class (using a JSP form that is shown in the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database | |
Report Generation with BIRT and JPA Started tutorial. The database file contains 1,000 Point entity objects, which represent points | |
Step 4: Add a Controller Class the next tutorial step) - a new Guest entity object is constructed and stored in the database. Processing |