fr.inria.atlanmod.neoemf.resource

Class DefaultPersistentResource

java.lang.Object

org.eclipse.emf.common.notify.impl.BasicNotifierImpl

org.eclipse.emf.common.notify.impl.NotifierImpl

org.eclipse.emf.ecore.resource.impl.ResourceImpl

fr.inria.atlanmod.neoemf.resource.DefaultPersistentResource

All Implemented Interfaces:

PersistentResource, Closeable, AutoCloseable, Notifier, Resource, Resource.Internal

public class DefaultPersistentResource
extends ResourceImpl
implements PersistentResource

The default implementation of a PersistentResource that contains PersistentEObject.

DefaultPersistentResources is backend-agnostic and only delegates model element operations to its internal PersistentStore which is responsible of database access.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.ecore.resource.impl.ResourceImpl

ResourceImpl.ContentsEList<E extends Object & EObject>, ResourceImpl.ModificationTrackingAdapter

Nested classes/interfaces inherited from class org.eclipse.emf.common.notify.impl.BasicNotifierImpl

BasicNotifierImpl.EAdapterList<E extends Object & Adapter>, BasicNotifierImpl.EObservableAdapterList

Nested classes/interfaces inherited from interface org.eclipse.emf.ecore.resource.Resource

Resource.Diagnostic, Resource.Factory, Resource.Internal, Resource.IOWrappedException

Field Summary

Fields

Modifier and Type	Field and Description
protected PersistenceBackend	backend The underlying PersistenceBackend that stores the data.
protected PersistentStore	store The PersistentStore responsible of the database serialization.

Fields inherited from class org.eclipse.emf.ecore.resource.impl.ResourceImpl

contents, defaultDeleteOptions, defaultLoadOptions, defaultSaveOptions, errors, intrinsicIDToEObjectMap, isLoaded, isLoading, isModified, modificationTrackingAdapter, resourceSet, timeStamp, unloadingContents, uri, warnings

Fields inherited from class org.eclipse.emf.common.notify.impl.NotifierImpl

eAdapters, EDELIVER, eFlags, ELAST_NOTIFIER_FLAG

Fields inherited from interface org.eclipse.emf.ecore.resource.Resource

OPTION_CIPHER, OPTION_LINE_DELIMITER, OPTION_LINE_DELIMITER_UNSPECIFIED, OPTION_SAVE_ONLY_IF_CHANGED, OPTION_SAVE_ONLY_IF_CHANGED_FILE_BUFFER, OPTION_SAVE_ONLY_IF_CHANGED_MEMORY_BUFFER, OPTION_ZIP, RESOURCE__CONTENTS, RESOURCE__ERRORS, RESOURCE__IS_LOADED, RESOURCE__IS_MODIFIED, RESOURCE__IS_TRACKING_MODIFICATION, RESOURCE__RESOURCE_SET, RESOURCE__TIME_STAMP, RESOURCE__URI, RESOURCE__WARNINGS

Constructor Summary

Constructors

Constructor and Description
DefaultPersistentResource(URI uri) Constructs a new DefaultPersistentResource with the given uri.

Method Summary

Modifier and Type	Method and Description
void	close()
protected void	doUnload() Does all the work of unloading the resource.
InternalEObject.EStore	eStore() Returns the InternalEObject.EStore used to store the model.
protected void	finalize()
EList<EObject>	getAllInstances(EClass eClass) Computes the set of instances of the given EClass (including its sub-types).
EList<EObject>	getAllInstances(EClass eClass, boolean strict) Computes the set of instances of the given EClass.
EList<EObject>	getContents() Returns the list of the direct content objects; each is of type EObject.
EObject	getEObject(String uriFragment) Returns the resolved object for the given URI fragment.
protected File	getFile() Returns the database file.
String	getURIFragment(EObject eObject) Returns the URI fragment that, when passed to getEObject will return the given object.
void	load(Map<?,?> options) Loads the resource using the specified options.
void	save(Map<?,?> options) Saves the resource using the specified options.

Methods inherited from class org.eclipse.emf.ecore.resource.impl.ResourceImpl

addModificationTrackingAdapters, attached, attachedHelper, basicSetResourceSet, createModificationTrackingAdapter, delete, detached, detachedHelper, doLoad, doSave, getAllContents, getAllProperContents, getAllProperContents, getDefaultURIConverter, getEObject, getEObjectByID, getEObjectForURIFragmentRootSegment, getErrors, getIntrinsicIDToEObjectMap, getResourceSet, getTimeStamp, getUnloadingContents, getURI, getURIConverter, getURIFragmentRootSegment, getWarnings, handleLoadResponse, handleSaveResponse, isAttachedDetachedHelperRequired, isContentZipEntry, isLoaded, isLoading, isModified, isTrackingModification, load, mergeMaps, newContentZipEntry, removeModificationTrackingAdapters, save, saveOnlyIfChangedWithFileBuffer, saveOnlyIfChangedWithMemoryBuffer, setIntrinsicIDToEObjectMap, setLoaded, setModified, setTimeStamp, setTrackingModification, setURI, toKeyString, toString, unload, unloaded, useZip

Methods inherited from class org.eclipse.emf.common.notify.impl.NotifierImpl

eAdapters, eBasicAdapters, eDeliver, eSetDeliver

Methods inherited from class org.eclipse.emf.common.notify.impl.BasicNotifierImpl

eBasicAdapterArray, eBasicHasAdapters, eNotificationRequired, eNotify

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.emf.ecore.resource.Resource.Internal

attached, basicSetResourceSet, detached, isLoading

Methods inherited from interface org.eclipse.emf.ecore.resource.Resource

delete, getAllContents, getErrors, getResourceSet, getTimeStamp, getURI, getWarnings, isLoaded, isModified, isTrackingModification, load, save, setModified, setTimeStamp, setTrackingModification, setURI, unload

Methods inherited from interface org.eclipse.emf.common.notify.Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Field Detail

store

protected PersistentStore store

The PersistentStore responsible of the database serialization.

backend

protected PersistenceBackend backend

The underlying PersistenceBackend that stores the data.

Constructor Detail

DefaultPersistentResource

public DefaultPersistentResource(URI uri)

Constructs a new DefaultPersistentResource with the given uri.

Parameters:

uri - the URI of the resource

Method Detail

getFile

protected File getFile()

Returns the database file.

Returns:

the database file

getContents

public EList<EObject> getContents()

Description copied from interface: org.eclipse.emf.ecore.resource.Resource

Returns the list of the direct content objects; each is of type EObject.

The contents may be directly modified. Removing an object will have the same effect as EcoreUtil.remove(EObject). Adding an object will remove it from the previous container; it's container will be null and it's resource will the this.

Specified by:

getContents in interface Resource

Overrides:

getContents in class ResourceImpl

Returns:

the direct content objects.

getURIFragment

public String getURIFragment(EObject eObject)

Description copied from interface: org.eclipse.emf.ecore.resource.Resource

Returns the URI fragment that, when passed to getEObject will return the given object.

In other words, the following is true for any object contained by a resource:

   Resource resource = eObject.eResource();
   eObject == resource.getEObject(resource.getURIFragment(eObject))

An implementation may choose to use IDs or to use structured URI fragments, as supported by eURIFragmentSegment.

Specified by:

getURIFragment in interface Resource

Overrides:

getURIFragment in class ResourceImpl

Parameters:

eObject - the object to identify.

Returns:

the URI fragment for the object.

See Also:

Resource.getEObject(String), InternalEObject.eURIFragmentSegment(org.eclipse.emf.ecore.EStructuralFeature, EObject)

getEObject

public EObject getEObject(String uriFragment)

Description copied from interface: org.eclipse.emf.ecore.resource.Resource

Returns the resolved object for the given URI fragment.

The fragment encoding will typically be that produced by getURIFragment.

Specified by:

getEObject in interface Resource

Overrides:

getEObject in class ResourceImpl

Parameters:

uriFragment - the fragment to resolve.

Returns:

the resolved object for the given fragment, or null if it can't be resolved.

See Also:

Resource.getURIFragment(EObject), ResourceSet.getEObject(URI, boolean), EcoreUtil.resolve(EObject, ResourceSet), InternalEObject.eObjectForURIFragmentSegment(String)

save

public void save(Map<?,?> options)
          throws IOException

Description copied from interface: org.eclipse.emf.ecore.resource.Resource

Saves the resource using the specified options.

Options are handled generically as feature-to-setting entries; the resource will ignore options it doesn't recognize. The options could even include things like an Eclipse progress monitor...

An implementation typically uses the URI converter of the containing resource set to create an output stream, and then delegates to save(OutputStream, Map).

Specified by:

save in interface Resource

Overrides:

save in class ResourceImpl

Parameters:

options - the save options.

Throws:

IOException

See Also:

Resource.save(OutputStream, Map)

load

public void load(Map<?,?> options)
          throws IOException

Description copied from interface: org.eclipse.emf.ecore.resource.Resource

Loads the resource using the specified options.

Options are handled generically as feature-to-setting entries; the resource will ignore options it doesn't recognize. The options could even include things like an Eclipse progress monitor...

An implementation typically uses the URI converter of the containing resource set to create an input stream, and then delegates to load(InputStream, Map).

When the load completes, the errors and warnings can be consulted. An implementation will typically deserialize as much of a document as possible while producing diagnostics for any problems that are encountered.

Specified by:

load in interface Resource

Overrides:

load in class ResourceImpl

Parameters:

options - the load options.

Throws:

IOException

See Also:

Resource.load(InputStream, Map)

doUnload

protected void doUnload()

Description copied from class: org.eclipse.emf.ecore.resource.impl.ResourceImpl

Does all the work of unloading the resource. It calls unloaded for each object it the content tree, and clears the contents, errors, and warnings.

Overrides:

doUnload in class ResourceImpl

close

public void close()

Specified by:

close in interface PersistentResource

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

eStore

public InternalEObject.EStore eStore()

Description copied from interface: PersistentResource

Returns the InternalEObject.EStore used to store the model.

Specified by:

eStore in interface PersistentResource

Returns:

the InternalEObject.EStore

getAllInstances

public EList<EObject> getAllInstances(EClass eClass)

Description copied from interface: PersistentResource

Computes the set of instances of the given EClass (including its sub-types).

This method is similar to PersistentResource.getAllInstances(EClass, boolean) with strict=false.

Specified by:

getAllInstances in interface PersistentResource

Parameters:

eClass - the EClass for which look for instances

Returns:

all the instances of the given EClass from the resource

getAllInstances

public EList<EObject> getAllInstances(EClass eClass,
                                      boolean strict)

Description copied from interface: PersistentResource

Computes the set of instances of the given EClass.

Specified by:

getAllInstances in interface PersistentResource

Parameters:

eClass - the EClass for which look for instances

strict - true if the lookup searches for strict instances

Returns:

if true then the method returns only the strict instances of the given EClass, otherwise it also returns the instances of the sub-types of eClass.

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable