зеркало из https://github.com/mozilla/gecko-dev.git
Bug 296836: Convert nsIRDFService documentation to a doxygen-parseable format, patch by J.P.Klippel <jklippel@xtux.org>, r=bsmedberg, rs=shaver
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@ -41,107 +41,133 @@
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#include "nsIRDFDataSource.idl"
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// The RDF service interface. This is a singleton object, and should be
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// obtained from the <tt>nsServiceManager</tt>.
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/**
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* The RDF service interface. This is a singleton object which should be
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* obtained from the <code>nsServiceManager</code>.
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*/
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[scriptable, uuid(BFD05261-834C-11d2-8EAC-00805F29F370)]
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interface nsIRDFService : nsISupports {
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// Construct an RDF resource from a single-byte URI. <tt>nsIRDFSerivce</tt>
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// caches resources that are in-use, so multiple calls to <tt>GetResource()</tt>
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// for the same <tt>uri</tt> will return identical pointers. FindResource
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// is used to find out whether there already exists a resource corresponding to that url.
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/**
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* Construct an RDF resource from a single-byte URI. <code>nsIRDFService</code>
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* caches resources that are in-use, so multiple calls to <code>GetResource()</code>
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* for the same <code>uri</code> will return identical pointers. FindResource
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* is used to find out whether there already exists a resource corresponding to that url.
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*/
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nsIRDFResource GetResource(in AUTF8String aURI);
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// Construct an RDF resource from a Unicode URI. This is provided
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// as a convenience method, allowing automatic, in-line C++
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// conversion from <tt>nsString</tt> objects. The <tt>uri</tt> will
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// be converted to a single-byte representation internally.
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/**
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* Construct an RDF resource from a Unicode URI. This is provided
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* as a convenience method, allowing automatic, in-line C++
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* conversion from <code>nsString</code> objects. The <code>uri</code> will
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* be converted to a single-byte representation internally.
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*/
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nsIRDFResource GetUnicodeResource(in AString aURI);
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nsIRDFResource GetAnonymousResource();
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// Construct an RDF literal from a Unicode string.
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/**
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* Construct an RDF literal from a Unicode string.
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*/
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nsIRDFLiteral GetLiteral(in wstring aValue);
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// Construct an RDF literal from a PRTime.
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/**
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* Construct an RDF literal from a PRTime.
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*/
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nsIRDFDate GetDateLiteral(in long long aValue);
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// Construct an RDF literal from an int.
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/**
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* Construct an RDF literal from an int.
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*/
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nsIRDFInt GetIntLiteral(in long aValue);
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// Construct an RDF literal from a data blob
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/**
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* Construct an RDF literal from a data blob
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*/
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[noscript] nsIRDFBlob getBlobLiteral(in const_octet_ptr aValue, in long aLength);
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boolean IsAnonymousResource(in nsIRDFResource aResource);
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// Registers a resource with the RDF system, making it unique w.r.t.
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// GetResource.
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//
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// An implementation of nsIRDFResource should call this in its
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// Init() method if it wishes the resource to be globally unique
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// (which is usually the case).
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//
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// NOTE that the resource will <i>not</i> be ref-counted by the
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// RDF service: the assumption is that the resource implementation
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// will call nsIRDFService::UnregisterResource() when the last
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// reference to the resource is released.
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//
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// NOTE that the nsIRDFService implementation may choose to
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// maintain a reference to the resource's URI; therefore, the
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// resource implementation should ensure that the resource's URI
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// (accessable via nsIRDFResource::GetValue(const char* *aURI)) is
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// valid before calling RegisterResource(). Furthermore, the
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// resource implementation should ensure that this pointer
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// <i>remains</i> valid for the lifetime of the resource. (The
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// implementation of the resource cache in nsIRDFService uses the
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// URI maintained "internally" in the resource as a key into the
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// cache rather than copying the resource URI itself.)
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/**
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* Registers a resource with the RDF system, making it unique w.r.t.
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* GetResource.
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*
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* An implementation of nsIRDFResource should call this in its
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* Init() method if it wishes the resource to be globally unique
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* (which is usually the case).
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*
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* @note that the resource will <i>not</i> be ref-counted by the
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* RDF service: the assumption is that the resource implementation
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* will call nsIRDFService::UnregisterResource() when the last
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* reference to the resource is released.
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*
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* @note that the nsIRDFService implementation may choose to
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* maintain a reference to the resource's URI; therefore, the
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* resource implementation should ensure that the resource's URI
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* (accessible via nsIRDFResource::GetValue(const char* *aURI)) is
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* valid before calling RegisterResource(). Furthermore, the
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* resource implementation should ensure that this pointer
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* <i>remains</i> valid for the lifetime of the resource. (The
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* implementation of the resource cache in nsIRDFService uses the
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* URI maintained "internally" in the resource as a key into the
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* cache rather than copying the resource URI itself.)
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*/
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void RegisterResource(in nsIRDFResource aResource, in boolean aReplace);
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// Called to notify the resource manager that a resource is no
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// longer in use. This method should only be called from the
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// destructor of a "custom" resource implementation to notify the
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// RDF service that the last reference to the resource has been
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// released, so the resource is no longer valid.
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//
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// NOTE. As mentioned in nsIRDFResourceFactory::CreateResource(),
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// the RDF service will use the result of
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// nsIRDFResource::GetValue() as a key into its cache. For this
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// reason, you must always un-cache the resource <b>before</b>
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// releasing the storage for the <tt>const char*</tt> URI.
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/**
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* Called to notify the resource manager that a resource is no
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* longer in use. This method should only be called from the
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* destructor of a "custom" resource implementation to notify the
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* RDF service that the last reference to the resource has been
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* released, so the resource is no longer valid.
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*
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* @note As mentioned in nsIRDFResourceFactory::CreateResource(),
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* the RDF service will use the result of
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* nsIRDFResource::GetValue() as a key into its cache. For this
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* reason, you must always un-cache the resource <b>before</b>
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* releasing the storage for the <code>const char*</code> URI.
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*/
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void UnregisterResource(in nsIRDFResource aResource);
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// Register a <i>named data source</i>. The RDF service will call
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// <tt>nsIRDFDataSource::GetURI()</tt> to determine the URI under
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// which to register the data source.
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//
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// Note that the data source will <i>not</i> be refcounted by the
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// RDF service! The assumption is that an RDF data source
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// registers with the service once it is initialized (via
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// <tt>nsIRDFDataSource::Init()</tt>), and unregisters when the
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// last reference to the data source is released.
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/**
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* Register a <i>named data source</i>. The RDF service will call
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* <code>nsIRDFDataSource::GetURI()</code> to determine the URI under
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* which to register the data source.
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*
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* @note that the data source will <i>not</i> be refcounted by the
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* RDF service! The assumption is that an RDF data source
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* registers with the service once it is initialized (via
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* <code>nsIRDFDataSource::Init()</code>), and unregisters when the
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* last reference to the data source is released.
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*/
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void RegisterDataSource(in nsIRDFDataSource aDataSource,
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in boolean aReplace);
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// Unregister a <i>named data source</i>. The RDF service will call
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// <tt>nsIRDFDataSource::GetURI()</tt> to determine the URI under which the
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// data source was registered.
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/**
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* Unregister a <i>named data source</i>. The RDF service will call
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* <code>nsIRDFDataSource::GetURI()</code> to determine the URI under which the
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* data source was registered.
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*/
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void UnregisterDataSource(in nsIRDFDataSource aDataSource);
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// Get the <i>named data source</i> corresponding to the URI. If a data
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// source has been registered via <tt>RegisterDataSource()</tt>, that
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// data source will be returned.
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//
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// If no data source is currently
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// registered for the specified URI, and a data source <i>constructor</i>
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// function has been registered via <tt>RegisterDatasourceConstructor()</tt>,
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// the RDF service will call the constructor to attempt to construct a
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// new data source. If construction is successful, the data source will
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// be initialized via <tt>nsIRDFDataSource::Init()</tt>.
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/**
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* Get the <i>named data source</i> corresponding to the URI. If a data
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* source has been registered via <code>RegisterDataSource()</code>, that
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* data source will be returned.
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*
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* If no data source is currently
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* registered for the specified URI, and a data source <i>constructor</i>
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* function has been registered via <code>RegisterDatasourceConstructor()</code>,
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* the RDF service will call the constructor to attempt to construct a
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* new data source. If construction is successful, the data source will
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* be initialized via <code>nsIRDFDataSource::Init()</code>.
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*/
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nsIRDFDataSource GetDataSource(in string aURI);
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// Same as GetDataSource, but if a remote/XML data source needs to be
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// constructed, then this method will issue a <b>blocking</b> Refresh
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// call on that data source.
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/**
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* Same as GetDataSource, but if a remote/XML data source needs to be
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* constructed, then this method will issue a <b>blocking</b> Refresh
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* call on that data source.
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*/
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nsIRDFDataSource GetDataSourceBlocking(in string aURI);
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};
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