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About Metadata API

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JPA Doc
2

createContainerEntityManagerFactory(info, map)

is to be created. Parameters: info - metadata for use by the persistence provider map - a Map ... : EntityManagerFactory for the persistence unit specified by the metadata Since: JPA 1.0
JPA Doc
2

javax.persistence.NamedNativeQuery

resultSetMapping The name of a SqlResultSetMapping, as defined in metadata. The name of a SqlResultSetMapping, as defined in metadata. Default value: "" Since: JPA 1.0
JPA Doc
2

javax.persistence.spi.PersistenceProvider

when an EntityManagerFactory is to be created. Parameters: info - metadata for use by the persistence provider map ... ". Returns: EntityManagerFactory for the persistence unit specified by the metadata Since: JPA 1.0
JDO Doc
2

newNamedQuery(cls, queryName)

of a query defined in metadata. Parameters: cls - the Class of candidate instances queryName - the name of the query to look up in metadata Returns: the new Query Since: JDO 1.0
JDO Doc
2

unregisterClass(pcClass)

Method javax.jdo.spi.JDOImplHelper void unregisterClass(   Class pcClass ) Unregister metadata by class. This method unregisters the specified class. Any further attempt to get metadata for the specified class will result in a JDOFatalUserException. Parameters: pcClass - the PersistenceCapable class to be unregistered. Since: JDO 1.0.2
JDO Doc
2

unregisterClasses(cl)

Method javax.jdo.spi.JDOImplHelper void unregisterClasses(   ClassLoader cl ) Unregister metadata by class loader. This method unregisters all registered PersistenceCapable classes loaded by the specified class loader. Any attempt to get metadata for unregistered classes will result in
Result
2

[ODB1] Chapter 4 - JDO Metadata

A JDO metadata file is an XML file with a '.jdo' suffix, containing information about one or more persistent classes. All the persistent classes, and only them, have to be declared in a metadata file. The metadata is used first by the JDO Enhancer, and later by the JDO
JPA Doc
2

javax.persistence.Query

a Criteria API query Since: JPA 2.0 int getMaxResults() The maximum number of results the query ... Persistence query language SELECT query or a Criteria API query Since: JPA 2.0 Query setMaxResults(int ... (Class cls) Return an object of the specified type to allow access to the provider-specific API
Forum
2

How to define Default Entity Listeners without persistence.xml and orm.xml

metadata. You cannot define default listeners using annotations (at least in JPA 2.0). Is there a way using em.getDelegate() and then using objectdb api ? I would like to do specifics actions ... . You may also register listener using the JDO API, which is not documented but supported by ObjectDB. mgangat
Issue
2

Query fails with failed to read

.hummingbird.API.handleGetContainer(API.java:3130) com.agile.hummingbird.API.directRequest(API.java:965) com.agile.hummingbird.API.handleWebSocketRequest(API.java:808) com.agile.hummingbird ... ) at com.agile.hummingbird.API.executeGetProcessOperations(API.java:4175) at com.agile