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.objectdb.o._LockTimeoutException: Write lock cannot be granted for a.b.c.d.EE#150. irrespective if I set ... setting a shared lock in the EJB could get around this, but this would be global and impact all threads ... on stale updates. Willks William Support of pessimistic lock timeout  setting ( javax.persistence

to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... like the following fail to change the value from null to false: UPDATE RecordingMetaData AS r SET r

an instance of Address , which is another entity class. Due to the CascadeType.DETACH setting ... setting , when an Employee instance is merged the operation is automatically cascaded

FROM ... [WHERE ...] UPDATE ... SET ... [WHERE ...] Besides a few exceptions, JPQL is case insensitive ... . Organization of this Section This section contains the following pages: Detailed explanations on how to set

) in the persistent object model are represented by the following sets of interfaces and enum types ... in the above sets extend the Bindable interface, which may be used in defining criteria query

Persistence fields can either be accessed by JPA directly (as fields) or indirectly (as properties and get/ set methods). JPA 2 provides an annotation and an enum for setting the access mode: More details are provided in chapter 2 of the ObjectDB manual.

Criteria Queries The CriteriaQuery interface provides methods for setting the ORDER BY clause ... (c. get ("population"))); Unlike other methods for setting criteria query clauses - the orderBy

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

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

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

, 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

how the native SQL query result set should be interpreted, for example: @NamedNativeQuery( name ... set mapping is needed, which may be specified using either a separate annotation: @NamedNativeQuery ... query result. If a result set mapping is specified, the specified result class must agree

. The resultSetMappings element names one or more result set mappings, as defined by the SqlResultSetMapping annotation. If there are multiple result sets , it is assumed that they are mapped using the same mechanism — e.g., either all via a set of result class mappings or all via a set of result set mappings

directly in query construction. All queries must have: a set of root entities (which may in turn ... (JPA) 1.0 Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Inherited from CommonAbstractCriteria

to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection ... " [ObjectDB 2.6.9] javax.persistence.RollbackException Failed to commit transaction: Failed to set numeric ... : com.objectdb.o.UserException: Failed to set numeric value of field property com.greensoft.objectdb

the request's  guestDao attribute that is set by the controller in the previous step). The next step (and the last in this tutorial) is setting the  Spring XML configuration .

+ ")"; } } 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

of the ObjectDB data source. The next step is using this data source to create a data set for the BIRT report.

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

these fields for content assistant) and click Next . In the [Format Chart] tab you can set the chart title

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 .