Example usage for javax.persistence EntityExistsException EntityExistsException

Introduction

In this page you can find the example usage for javax.persistence EntityExistsException EntityExistsException.

Prototype

public EntityExistsException(String message, Throwable cause) 

Source Link

Document

Constructs a new EntityExistsException exception with the specified detail message and cause.

Usage

From source file:org.castor.jpa.CastorEntityManager.java

/**
 * Make an entity instance managed and persistent.
 * //from   ww  w .  ja  v a 2s  .  c  o m
 * @param entity
 * @throws EntityExistsException
 *             if the entity already exists. (The EntityExistsException may
 *             be thrown when the persist operation is invoked, or the
 *             EntityExistsException or another PersistenceException may be
 *             thrown at flush or commit time.)
 * @throws IllegalStateException
 *             if this EntityManager has been closed.
 * @throws IllegalArgumentException
 *             if not an entity
 * @throws TransactionRequiredException
 *             if invoked on a container-managed entity manager of type
 *             PersistenceContextType.TRANSACTION and there is no
 *             transaction.
 */
public void persist(Object entity) {
    // Check whether the entity manager is open.
    verifyOpenEntityManager();
    // Check whether a transaction is running.
    verifyRunningTransaction();

    if (this.context.contains(entity)) {
        // The entity is already managed within this persistence context.
        return;
    }

    try {

        // Create the entity.
        this.database.create(entity);

        // Add the entity to the set of managed entities.
        this.context.manage(entity);

    } catch (ClassNotPersistenceCapableException e) {
        log.error("Entity of type >" + entity.getClass().getName() + "< is not valid entity type.", e);
        throw new IllegalArgumentException(
                "Entity of type >" + entity.getClass().getName() + "< is not valid entity type.", e);
    } catch (DuplicateIdentityException e) {
        log.error("Entity of type " + entity.getClass().getName() + " already exists.");
        throw new EntityExistsException("Entity of type " + entity.getClass().getName() + " already exists.",
                e);
    } catch (org.exolab.castor.jdo.PersistenceException e) {
        throw new PersistenceException(e);
    }
}

---