Examples of javax.persistence.EntityExistsException

javax.persistence.EntityExistsException
Thrown by the persistence provider when EntityManager.persist(Object) is called and the entity already exists. The current transaction, if one is active, will be marked for rollback. @author Emmanuel Bernard

            {
                // The JPA spec is very confuse about when this exception
                // is thrown, however the JPA TCK test, invokes this operation
                // multiple times over the same instance
                // Entity is already persistent. Maybe the ObjectManager.exists method isnt the best way of checking
                throw new EntityExistsException(LOCALISER.msg("EM.EntityIsPersistent", StringUtils.toJVMIDString(entity)));
            }
        }


        try
        {

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    JdbcMetaData metaData = _persistenceUnit.getMetaData();


    if (metaData.isUniqueConstraintSQLState(sqlState)) {
      // jpa/0ga5
      throw new EntityExistsException(L.l("Trying to persist an entity '{0}[{1}]' that already exists. Entity state '{2}'", entity.getClass().getName(), entity.__caucho_getPrimaryKey(), entity.__caucho_getEntityState()));
    }
    else if (metaData.isForeignKeyViolationSQLState(sqlState)) {
      // jpa/0o42
      throw new IllegalStateException(L.l("Trying to persist an entity of class '{0}' with PK '{1}' would break a foreign key constraint. The entity state is '{2}'. Please make sure there are associated entities for all required relationships. If you are merging an entity make sure the association fields are annotated with cascade=MERGE or cascade=ALL.", entity.getClass().getName(), entity.__caucho_getPrimaryKey(), entity.__caucho_getEntityState()));
    }

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        return entity;
      else {
        // jpa/0ga5 (tck):
        // See entitytest.persist.basic.persistBasicTest4 vs.
        //     callback.inheritance.preUpdateTest
        throw new EntityExistsException(L.l("Trying to persist an entity that is detached or already exists. Entity state '{0}'", state));
      }
    }


    // jpa/0j5e
    updateFlushPriority(entity);

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            sccee.addException(sce);
            throw sccee;
        }


        if (resourceDAO.find(resourceTO.getName()) != null) {
            throw new EntityExistsException("Resource '" + resourceTO.getName() + "'");
        }


        ExternalResource resource = resourceDAO.save(binder.create(resourceTO));


        auditManager.audit(Category.resource, ResourceSubCategory.create, Result.success,

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        }


        AttributableUtil attrUtil = getAttributableUtil(kind);


        if (virSchemaDAO.find(virSchemaTO.getName(), attrUtil.virSchemaClass()) != null) {
            throw new EntityExistsException(attrUtil.schemaClass().getSimpleName()
                    + " '" + virSchemaTO.getName() + "'");
        }


        AbstractVirSchema virSchema = virSchemaDAO.save(binder.create(virSchemaTO, attrUtil.newVirSchema()));

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        }


        AttributableUtil attrUtil = getAttributableUtil(kind);


        if (derSchemaDAO.find(derSchemaTO.getName(), attrUtil.derSchemaClass()) != null) {
            throw new EntityExistsException(attrUtil.schemaClass().getSimpleName()
                    + " '" + derSchemaTO.getName() + "'");
        }


        AbstractDerSchema derivedSchema = derSchemaDAO.save(binder.create(derSchemaTO, attrUtil.newDerSchema()));

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        break;
      case MANAGED:
        // no-op, but cascade to relatives
        break;
      case DETACHED:
        throw new EntityExistsException();
      }
      break;
    case MERGE:
      switch (oldState) {
      case NEW:

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      PersistenceException converted = wrapLockException( (HibernateException) e, null );
      throwPersistenceException( converted );
    }
    else if ( e instanceof ConstraintViolationException ) {
      //FIXME this is bad cause ConstraintViolationException happens in other circumstances
      throwPersistenceException( new EntityExistsException( e ) );
    }
    else if ( e instanceof org.hibernate.QueryTimeoutException ) {
      javax.persistence.QueryTimeoutException converted = new javax.persistence.QueryTimeoutException(e.getMessage(), e);
      throwPersistenceException( converted );
    }

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        }


        AttributableUtil attrUtil = getAttributableUtil(kind);


        if (schemaDAO.find(schemaTO.getName(), attrUtil.schemaClass()) != null) {
            throw new EntityExistsException(attrUtil.schemaClass().getSimpleName()
                    + " '" + schemaTO.getName() + "'");
        }


        AbstractSchema schema = attrUtil.newSchema();
        binder.create(schemaTO, schema);

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        // FALLTHROUGH
      case MANAGED:
        // no-op, but cascade to relatives
        break;
      case DETACHED:
        throw new EntityExistsException();
      }
      break;
    case DETACHED:
      switch (oldState) {
      case NEW:

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