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Manual
14

JPA Entity Fields

that do not participate in persistence and their values are never stored in the database (similar ... . When an entity object is stored in the database every persistent field must contain either null or a value ... static type, including a generic java.lang.Object, as long as the type of the actual value at runtime
JPA Doc
13

javax.persistence.TypedQuery

- if the statement execution exceeds the query timeout value set and only the statement is rolled back PersistenceException - if the query execution exceeds the query timeout value set ... .0 Map getHints() Get the properties and hints and associated values that are in
Manual
12

Database Explorer

, every column represents a persistent field, and the content of a cell is the value of a single field in ... and the values of its persistent fields are represented as child nodes. Tree windows provide easier ... to construct and store the new entity objects. Editing Values and References You can edit simple field
Manual
12

Database Management Settings

is needed. Small initial size and resize values save space. Larger values can improve performance by ... attribute (whose value is "true" or "false") specifies if recovery file is used. The sync attribute (whose value is "true" or "false") specifies if physical writing is required before commit returns
Manual
12

FROM clause (JPQL / Criteria API)

that appear earlier in the FROM clause. Join variables can also be bound to a single value path expression ... to a single value expression are less commonly used because usually they can be replaced by ... skips any outer variable value (e.g. any Country) that has no matching inner variable (e.g. a Capital
Issue
12

ObjectDB-2.6.9: Failed to commit transaction: Failed to set numeric value of field property Element.id using reflection

to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection ... .6.9] javax.persistence.RollbackException Failed to commit transaction: Failed to set numeric value ... : com.objectdb.o.UserException: Failed to set numeric value of field property com.greensoft.objectdb
JPA Doc
12

javax.persistence.criteria.CriteriaBuilder

. Expression abs( Expression x) Create an expression that returns the absolute value of its argument. Create an expression that returns the absolute value of its argument. Parameters: x - expression Returns: absolute value Since: JPA 2.0 Expression all( Subquery subquery) Create
Manual
11

Database Schema Evolution

entity object is initialized using the value of the matching old field in the original entity object ... with default values (0, false or null). Fields in the old schema that do not have matching fields in the new ... with a default value (0, false or null). The following type conversions are supported: From any numeric type
Manual
11

Entity Management Settings

specifies enhancement related settings: The agent attribute (whose value is "true" or "false ... can manage non enhanced classes by using reflection at the cost of performance. The possible values ... the persistence context of the EntityManager (which serves as a first level cache). The valid values are "weak
Manual
11

Shared (L2) Entity Cache

size, 0, indicates that the cache is disabled. To enable the cache a positive value ... name="javax.persistence.sharedCache.mode" value="ALL"/>           ...    The javax.persistence.sharedCache.mode property can be set to one of the following values