Package org.apache.sling.servlets.resolver.internal.resolution

Class ResolutionCache

java.lang.Object
org.apache.sling.servlets.resolver.internal.resolution.ResolutionCache
All Implemented Interfaces:
EventListener, org.apache.sling.api.resource.observation.ExternalResourceChangeListener, org.apache.sling.api.resource.observation.ResourceChangeListener, org.osgi.framework.ServiceListener, org.osgi.service.event.EventHandler
public class ResolutionCache extends Object implements org.osgi.service.event.EventHandler, org.apache.sling.api.resource.observation.ResourceChangeListener, org.apache.sling.api.resource.observation.ExternalResourceChangeListener, org.osgi.framework.ServiceListener
Cache for script resolution

  • Field Summary

    Fields inherited from interface org.apache.sling.api.resource.observation.ResourceChangeListener

    CHANGE_ADDED, CHANGE_CHANGED, CHANGE_PROVIDER_ADDED, CHANGE_PROVIDER_REMOVED, CHANGE_REMOVED, CHANGES, PATHS, PROPERTY_NAMES_HINT

  • Constructor Summary

    Constructors
    Constructor
    Description
    ResolutionCache()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    activate(org.osgi.framework.BundleContext context, org.apache.sling.servlets.resolver.internal.ResolverConfig config)
    Activate this component.
    protected void
    deactivate(org.osgi.framework.BundleContext context)
    Deactivate this component.
    void
    flushCache()
     
    jakarta.servlet.Servlet
    get(AbstractResourceCollector context)
     
    long
    getGeneration()
     
    List<String>
    getScriptEngineExtensions()
    Get the list of script engine extensions
    void
    handleEvent(org.osgi.service.event.Event event)
     
    protected void
    modified(org.osgi.framework.BundleContext context, org.apache.sling.servlets.resolver.internal.ResolverConfig config)
     
    void
    onChange(List<org.apache.sling.api.resource.observation.ResourceChange> changes)
     
    void
    put(long generation, AbstractResourceCollector context, jakarta.servlet.Servlet candidate)
    Caches the candidate unless the cache has been flushed since generation was obtained, i.e. the resolution that produced the candidate may be based on stale data.
    void
    serviceChanged(org.osgi.framework.ServiceEvent event)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ResolutionCache

      public ResolutionCache()

  • Method Details

    • activate

      protected void activate(org.osgi.framework.BundleContext context, org.apache.sling.servlets.resolver.internal.ResolverConfig config) throws org.osgi.framework.InvalidSyntaxException
      Activate this component.
      Throws:
      org.osgi.framework.InvalidSyntaxException

    • modified

      protected void modified(org.osgi.framework.BundleContext context, org.apache.sling.servlets.resolver.internal.ResolverConfig config) throws org.osgi.framework.InvalidSyntaxException
      Throws:
      org.osgi.framework.InvalidSyntaxException

    • deactivate

      protected void deactivate(org.osgi.framework.BundleContext context)
      Deactivate this component.

    • getScriptEngineExtensions

      public List<String> getScriptEngineExtensions()
      Get the list of script engine extensions
      Returns:
      The list of script engine extensions

    • handleEvent

      public void handleEvent(org.osgi.service.event.Event event)
      Specified by:
      handleEvent in interface org.osgi.service.event.EventHandler
      See Also:
      • EventHandler.handleEvent(org.osgi.service.event.Event)

    • serviceChanged

      public void serviceChanged(org.osgi.framework.ServiceEvent event)
      Specified by:
      serviceChanged in interface org.osgi.framework.ServiceListener

    • flushCache

      public void flushCache()

    • onChange

      public void onChange(List<org.apache.sling.api.resource.observation.ResourceChange> changes)
      Specified by:
      onChange in interface org.apache.sling.api.resource.observation.ResourceChangeListener

    • get

      public jakarta.servlet.Servlet get(AbstractResourceCollector context)

    • getGeneration

      public long getGeneration()
      Returns:
      the current cache generation, to be passed to put(long, AbstractResourceCollector, Servlet)

    • put

      public void put(long generation, AbstractResourceCollector context, jakarta.servlet.Servlet candidate)
      Caches the candidate unless the cache has been flushed since generation was obtained, i.e. the resolution that produced the candidate may be based on stale data.