ObjectDB Database Search

Refresh data in application after database data has changed

.GenericTypeResolver.getTypeVariableMap(Ljava/lang/Class;)Ljava/util/Map; from class org.springframework. data .util ... org.springframework. data .util.ClassTypeInformation at org.springframework.beans.factory.support ... .springframework. data .util.ClassTypeInformation at org.springframework. data .util.ClassTypeInformation

Hello! When i configure Spring Data JPA to use ObjectDB 2.4.0_03 i get an exception ... .getMetamodel(Unknown Source) at org.springframework. data .jpa.repository.support.JpaEntityInformationSupport.getMetadata(JpaEntityInformationSupport.java:56) at org.springframework. data .jpa.repository

system. However we want to work on one of the aspects that is the data should be able to pulled out of the ObjectDB to some sort of Big Data File system or Relation DB for reporting / analytics ... our OLTP to be affected by data intensive reporting and analytics requirements. This could be handled

Table contains all necessary Data . Most of the others  contains all  Object-Rows ... More information is needed (e.g. about your method exportToCSV ). support Support The Data is even missing in ... ) then you must make sure that data is fetched from the database before you your first reflection operation

) at com.sun.proxy.$Proxy13.getMetamodel(Unknown Source) at org.springframework. data .jpa.repository ... ) at org.springframework. data .jpa.repository.config.JpaMetamodelMappingContextFactoryBean.createInstance(JpaMetamodelMappingContextFactoryBean.java:56) at org.springframework. data .jpa.repository

data mart that is appended to daily via an SSIS package. I would like to pull the data from SQL, add ... other JPA implementations to retrieve data from RDBMS tables and then use the same JPA entity classes to store the data in ObjectDB. support Support Hi -   Thanks for getting back to me. I'm unfamiliar

Hi, I've never used an OODB, I'm looking for a starting point but a recurrent concern is the Data Portability one. More clear: what options / strategies do I have to export / move my data ... Portability (based on JPA/JDO standards), but what about Data Portability? Regards, lorenzo.sm Lorenzo

To access relational databases using the Java Persistence API (JPA) you will need an Object Relational Mapping (ORM) tool, such as Hibernate, TopLink, EclipseLink, Open JPA or DataNucleus. The DataNucleus ORM implementation supports also the Java Data Objects (JDO) API. ObjectDB is a full featured

, damages for loss of data or profit, or due to business interruption,) arising out of the use or

ObjectDB Software develops, markets and supports the ObjectDB Object-Oriented Database Management System (ODBMS). ObjectDB Software is the market leader in providing a very high performance persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects (JDO

clauses are explained: ObjectDB also supports the Java Data Objects (JDO) Query Language (JDOQL

Persistence (JPA) 1.0 Set getAttributes () Return the attributes of the managed type. Inherited from ... the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type has no declared attributes

of the given name is not present in the managed type. Since: Jakarta Persistence (JPA) 1.0 Set ... declared in the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type has no declared

. Since: Jakarta Persistence (JPA) 1.0 Set getAttributes () Return the attributes of the managed type. Inherited ... in the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type has no declared

the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getAttributes () Return the attributes ... name is not declared in the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type

is not present in the managed type. Since: Jakarta Persistence (JPA) 1.0 Set getAttributes () Return ... (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type has no declared attributes. Inherited from ManagedType Returns: declared

. A persistence context is a set of entity instances in which for any given persistent entity identity ... flush . The timing of the flush process depends on the flush mode , which may be set explicitly by ... must also be flushed before execution of any query whose result set would be affected by unflushed modifications

: - the source type of the join - the element type of the target Set Super Interfaces: PluralJoin , Join ... that has been specified as a Set . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String ... (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty

when data is read from the database and when data is written to the database. USE indicates that data may be written to the second-level cache. BYPASS indicates that data may not be written to the second-level cache. REFRESH indicates that data must be written to the second-level cache

Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect ... Persistence (JPA) 1.0 Set getJoins () Return the joins that have been made from this bound type. Returns

) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect the query ... .0 Set getJoins () Return the joins that have been made from this bound type. Returns empty set

(JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect ... TupleElement Returns: the Java type of the tuple element. Since: Jakarta Persistence (JPA) 1.0 Set getJoins

. Since: Jakarta Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect the query. Inherited from FetchParent Returns: fetch joins made from this type

Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect ... (JPA) 1.0 Set getJoins () Return the joins that have been made from this bound type. Returns empty

. Since: Jakarta Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect the query. Inherited from FetchParent Returns: fetch joins made from this type

. Since: Jakarta Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set ... ) 1.0 Set getJoins () Return the joins that have been made from this bound type. Returns empty set

(JPA) 1.0 SetJoin correlate ( SetJoin parentSet ) Create a subquery set join object correlated to a set ... (JPA) 2.1 Set getCorrelatedJoins () Return the correlated joins of the subquery. Returns empty set if the subquery has no correlated joins. Modifications to the set do not affect the query. Returns

, MOD, NEW, NOT, NULL, NULLIF, OBJECT, OF, OR, ORDER, OUTER, POSITION, SELECT, SET , SIZE, SOME, SQRT

The way a field of a persistable class is managed by JPA can be set by the following annotations: Additional annotations (and enum) are designated for enum fields: Other additional annotations (and enum) are designated for date and calendar fields: Chapter 2 of the ObjectDB manual explains how to use all the above annotations.

the picture by describing some tools and settings that are specific to ObjectDB:

all the Country instances to zero: int count = em. createQuery ("UPDATE Country SET area = 0

The JPA Criteria API interfaces in this group are used for setting the SELECT and ORDER BY clauses and for representing query results as tuples. SELECT Clause Elements The content of the SELECT clause in a criteria query is represented by Selection : Because Selection  is a super interface

directory can be specified by setting the target parameter before executing the backup query:  

JPA defines three types of persistable classes which are set by the following annotations: Chapter 2 of the ObjectDB manual explains these annotations in detail. Entity and mapped super classes can be further configured by annotations that specify cache preferences and lifecycle event listener

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 is optional when using ObjectDB, but required by JPA. persistence.xml Persistence units are defined in

The interfaces in this group are in use for setting a criteria query FROM clause. Criteria Query Variables The FROM clause  in JPA queries (as in SQL) defines the query variables. Query variables are represented in criteria queries by descendant interfaces of the From interface: Range

file name (e.g. report.rptdesign ) and click Finish. The next step is creating an ObjectDB data source .

+ ")"; } } The Guest entity class will represents guests in the database. We also need to configure JPA by setting

; copy and paste to replace its content with the following settings : 4.0.0 com.objectdb.tutorial

qualified class name is set (you may use copy & paste). Click the Finish button to create

file and use copy and paste to replace its content with the following settings : 4.0.0 com.objectdb

JPA persistence unit (with default settings ) was generated in a persistence.xml file that was added

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

by setting a  META-INF/persistence.xml file: Right click the src/main/resources node (in

JPA persistence unit (with default settings ) was generated in a persistence.xml file that was added

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

" 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 .

You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API. Both share similar architecture, design and abilities. When to prefer JPA JPA is more commonly used. Therefore, it might be the first choice for most new applications. You can use JPA as