org.eclipse.core.internal.resources
Class ContentDescriptionManager

java.lang.Object
  org.eclipse.core.internal.resources.ContentDescriptionManager

All Implemented Interfaces:

java.util.EventListener, ILifecycleListener, IManager, org.eclipse.core.runtime.content.IContentTypeManager.IContentTypeChangeListener, org.eclipse.core.runtime.IRegistryChangeListener

public class ContentDescriptionManager
extends java.lang.Object
implements IManager, org.eclipse.core.runtime.IRegistryChangeListener, org.eclipse.core.runtime.content.IContentTypeManager.IContentTypeChangeListener, ILifecycleListener

Keeps a cache of recently read content descriptions.

Since:

3.0

See Also:

IFile.getContentDescription()

Field Summary

static byte	ABOUT_TO_FLUSH
static byte	EMPTY_CACHE
static java.lang.String	FAMILY_DESCRIPTION_CACHE_FLUSH
static byte	FLUSHING_CACHE
static byte	INVALID_CACHE
static byte	USED_CACHE

Constructor Summary

ContentDescriptionManager()

Method Summary

void	contentTypeChanged(org.eclipse.core.runtime.content.IContentTypeManager.ContentTypeChangeEvent event)
byte	getCacheState() Public so tests can examine it.
long	getCacheTimestamp()
org.eclipse.core.runtime.content.IContentTypeMatcher	getContentTypeMatcher(Project project)
org.eclipse.core.runtime.content.IContentDescription	getDescriptionFor(File file, ResourceInfo info)
void	handleEvent(LifecycleEvent event)
void	invalidateCache(boolean flush, IProject project) Marks the cache as invalid.
void	projectPreferencesChanged(IProject project)
void	registryChanged(org.eclipse.core.runtime.IRegistryChangeEvent event)
void	shutdown(org.eclipse.core.runtime.IProgressMonitor monitor)
void	startup(org.eclipse.core.runtime.IProgressMonitor monitor)

Methods inherited from class java.lang.Object

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

Field Detail

FAMILY_DESCRIPTION_CACHE_FLUSH

public static final java.lang.String FAMILY_DESCRIPTION_CACHE_FLUSH

See Also:

Constant Field Values

EMPTY_CACHE

public static final byte EMPTY_CACHE

See Also:

Constant Field Values

USED_CACHE

public static final byte USED_CACHE

See Also:

Constant Field Values

INVALID_CACHE

public static final byte INVALID_CACHE

See Also:

Constant Field Values

FLUSHING_CACHE

public static final byte FLUSHING_CACHE

See Also:

Constant Field Values

ABOUT_TO_FLUSH

public static final byte ABOUT_TO_FLUSH

See Also:

Constant Field Values

Constructor Detail

ContentDescriptionManager

public ContentDescriptionManager()

Method Detail

contentTypeChanged

public void contentTypeChanged(org.eclipse.core.runtime.content.IContentTypeManager.ContentTypeChangeEvent event)

Specified by:

contentTypeChanged in interface org.eclipse.core.runtime.content.IContentTypeManager.IContentTypeChangeListener

See Also:

IContentTypeManager.IContentTypeChangeListener#contentTypeChanged(IContentTypeManager.ContentTypeChangeEvent)

getCacheState

public byte getCacheState()

Public so tests can examine it.

getCacheTimestamp

public long getCacheTimestamp()
                       throws org.eclipse.core.runtime.CoreException

Throws:

org.eclipse.core.runtime.CoreException

getContentTypeMatcher

public org.eclipse.core.runtime.content.IContentTypeMatcher getContentTypeMatcher(Project project)
                                                                           throws org.eclipse.core.runtime.CoreException

Throws:

org.eclipse.core.runtime.CoreException

getDescriptionFor

public org.eclipse.core.runtime.content.IContentDescription getDescriptionFor(File file,
                                                                              ResourceInfo info)
                                                                       throws org.eclipse.core.runtime.CoreException

Throws:

org.eclipse.core.runtime.CoreException

invalidateCache

public void invalidateCache(boolean flush,
                            IProject project)

Marks the cache as invalid. Does not do anything if the cache is new. Optionally causes the cached information to be actually flushed.

Parameters:

flush - whether the cached information should be flushed

See Also:

doFlushCache(IProgressMonitor, IPath[])

registryChanged

public void registryChanged(org.eclipse.core.runtime.IRegistryChangeEvent event)

Specified by:

registryChanged in interface org.eclipse.core.runtime.IRegistryChangeListener

See Also:

IRegistryChangeListener.registryChanged(IRegistryChangeEvent)

handleEvent

public void handleEvent(LifecycleEvent event)

Specified by:

handleEvent in interface ILifecycleListener

See Also:

ILifecycleListener.handleEvent(LifecycleEvent)

shutdown

public void shutdown(org.eclipse.core.runtime.IProgressMonitor monitor)
              throws org.eclipse.core.runtime.CoreException

Specified by:

shutdown in interface IManager

Throws:

org.eclipse.core.runtime.CoreException

startup

public void startup(org.eclipse.core.runtime.IProgressMonitor monitor)
             throws org.eclipse.core.runtime.CoreException

Specified by:

startup in interface IManager

Throws:

org.eclipse.core.runtime.CoreException

projectPreferencesChanged

public void projectPreferencesChanged(IProject project)