Package org.datanucleus.plugin
Class OSGiPluginRegistry
java.lang.Object
org.datanucleus.plugin.OSGiPluginRegistry
- All Implemented Interfaces:
PluginRegistry
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected static class
Sorter for extensions that puts DataNucleus extensions first, then any vendor extension. -
Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final String
DataNucleus package to define whether to check for deps, etc.(package private) ExtensionPoint[]
extension points(package private) Map
<String, ExtensionPoint> extension points keyed by Unique Id (plugin.id +"."+ id)registered bundles files keyed by bundle symbolic name -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptioncreateExecutableExtension
(ConfigurationElement confElm, String name, Class[] argTypes, Object[] args) Loads a class (do not initialize) from an attribute ofConfigurationElement
Bundle[]
Accessor for all registered bundlesAcessor for the ExtensionPointAcessor for the currently registed ExtensionPointsprivate org.osgi.framework.Bundle
getOsgiBundle
(String symbolicName) Loads a class (do not initialize)private Bundle
registerBundle
(org.osgi.framework.Bundle osgiBundle) Register the plugin bundle.void
Look for Bundles/Plugins and register them.protected void
registerExtensionPointsForPluginInternal
(List<ExtensionPoint> extPoints, boolean updateExtensionPointsArray) Register extension-points for the specified plugin.void
Look for Bundles/Plugins and register them.void
Resolve constraints declared in bundle manifest.mf files.resolveURLAsFileURL
(URL url) Converts a URL that uses a user-defined protocol into a URL that uses the file protocol.
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Field Details
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DATANUCLEUS_PKG
DataNucleus package to define whether to check for deps, etc.- See Also:
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extensionPointsByUniqueId
Map<String,ExtensionPoint> extensionPointsByUniqueIdextension points keyed by Unique Id (plugin.id +"."+ id) -
registeredPluginByPluginId
registered bundles files keyed by bundle symbolic name -
extensionPoints
ExtensionPoint[] extensionPointsextension points
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Constructor Details
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OSGiPluginRegistry
Constructor- Parameters:
clr
- the ClassLoaderResolver
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Method Details
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getExtensionPoint
Description copied from interface:PluginRegistry
Acessor for the ExtensionPoint- Specified by:
getExtensionPoint
in interfacePluginRegistry
- Parameters:
id
- the unique id of the extension point- Returns:
- null if the ExtensionPoint is not registered
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getExtensionPoints
Description copied from interface:PluginRegistry
Acessor for the currently registed ExtensionPoints- Specified by:
getExtensionPoints
in interfacePluginRegistry
- Returns:
- array of ExtensionPoints
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registerExtensionPoints
public void registerExtensionPoints()Description copied from interface:PluginRegistry
Look for Bundles/Plugins and register them. Register also ExtensionPoints and Extensions declared in /plugin.xml files- Specified by:
registerExtensionPoints
in interfacePluginRegistry
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registerExtensions
public void registerExtensions()Description copied from interface:PluginRegistry
Look for Bundles/Plugins and register them. Register also ExtensionPoints and Extensions declared in /plugin.xml files- Specified by:
registerExtensions
in interfacePluginRegistry
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registerExtensionPointsForPluginInternal
protected void registerExtensionPointsForPluginInternal(List<ExtensionPoint> extPoints, boolean updateExtensionPointsArray) Register extension-points for the specified plugin.- Parameters:
extPoints
- ExtensionPoints for this pluginupdateExtensionPointsArray
- Whether to update "extensionPoints" array
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registerBundle
Register the plugin bundle.- Parameters:
osgiBundle
- the OSGi bundle- Returns:
- the Plugin
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createExecutableExtension
public Object createExecutableExtension(ConfigurationElement confElm, String name, Class[] argTypes, Object[] args) throws ClassNotFoundException, SecurityException Description copied from interface:PluginRegistry
Loads a class (do not initialize) from an attribute ofConfigurationElement
- Specified by:
createExecutableExtension
in interfacePluginRegistry
- Parameters:
confElm
- the configuration elementname
- the attribute nameargTypes
- Types of the constructor argumentsargs
- The arguments- Returns:
- the instance
- Throws:
ClassNotFoundException
- If an error occursSecurityException
- If an error occurs
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loadClass
Description copied from interface:PluginRegistry
Loads a class (do not initialize)- Specified by:
loadClass
in interfacePluginRegistry
- Parameters:
pluginId
- the plugin idclassName
- the class name- Returns:
- the Class
- Throws:
ClassNotFoundException
- if an error occurs in loading
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resolveURLAsFileURL
Description copied from interface:PluginRegistry
Converts a URL that uses a user-defined protocol into a URL that uses the file protocol.- Specified by:
resolveURLAsFileURL
in interfacePluginRegistry
- Parameters:
url
- the url to be converted- Returns:
- the converted URL
- Throws:
IOException
- if an error occurs
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resolveConstraints
public void resolveConstraints()Description copied from interface:PluginRegistry
Resolve constraints declared in bundle manifest.mf files. This must be invoked after registering all bundles. Should log errors if bundles are not resolvable, or raise runtime exceptions.- Specified by:
resolveConstraints
in interfacePluginRegistry
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getBundles
Description copied from interface:PluginRegistry
Accessor for all registered bundles- Specified by:
getBundles
in interfacePluginRegistry
- Returns:
- the bundles
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getOsgiBundle
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