Module org.datanucleus
Package org.datanucleus

Interface NucleusContext

  • All Known Subinterfaces:
    PersistenceNucleusContext
    All Known Implementing Classes:
    AbstractNucleusContext, EnhancementNucleusContextImpl, PersistenceNucleusContextImpl
    public interface NucleusContext
    Representation of the context being run within DataNucleus. Provides basic services that can be used by all DataNucleus contexts.
    • properties defining configuration for persistence.
    • manages the plugins involved in this DataNucleus context
    • provides access to the API in use
    • manages metadata for persistable classes
    • provides access to the TypeManager, defining the behaviour for java types.

    • Method Detail

      • applyDefaultProperties

        void applyDefaultProperties​(Configuration conf)
        Method called when initialising the Configuration to load up defaults for the properties appropriate for this NucleusContext.
        Parameters:
        conf - The configuration

      • initialise

        void initialise()
        Method to initialise the context for use. If any services are considered essential for operation then they will be enabled here, otherwise left for lazy initialisation.

      • close

        void close()
        Clear out resources for the supported services.

      • getApiName

        String getApiName()
        Accessor for the name of the API (JDO, JPA, etc).
        Returns:
        the api

      • getConfiguration

        Configuration getConfiguration()
        Accessor for the overall configuration for DataNucleus.
        Returns:
        The Configuration

      • getPluginManager

        PluginManager getPluginManager()
        Accessor for the manager for DataNucleus plugins.
        Returns:
        The PluginManager

      • getMetaDataManager

        MetaDataManager getMetaDataManager()
        Accessor for the manager for persistence metadata information.
        Returns:
        The MetaDataManager

      • getTypeManager

        TypeManager getTypeManager()
        Accessor for manager for java types.
        Returns:
        The TypeManager

      • getClassLoaderResolver

        ClassLoaderResolver getClassLoaderResolver​(ClassLoader primaryLoader)
        Accessor for a ClassLoaderResolver to use in resolving classes. Caches the resolver for the specified primary loader, and hands it out if present.
        Parameters:
        primaryLoader - Loader to use as the primary loader (or null)
        Returns:
        The ClassLoader resolver

      • supportsORMMetaData

        boolean supportsORMMetaData()