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82 lines
2.8 KiB
Plaintext
82 lines
2.8 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsrootidl.idl"
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#include "nsIRDFNode.idl"
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/**
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* An nsIRDFResource is an object that has unique identity in the
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* RDF data model. The object's identity is determined by its URI.
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*/
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[scriptable, uuid(fb9686a7-719a-49dc-9107-10dea5739341)]
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interface nsIRDFResource : nsIRDFNode {
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/**
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* The single-byte string value of the resource.
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* @note THIS IS OBSOLETE. C++ should use GetValueConst and script
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* should use .valueUTF8
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*/
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readonly attribute string Value;
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/**
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* The UTF-8 URI of the resource.
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*/
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readonly attribute AUTF8String ValueUTF8;
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/**
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* An unscriptable version used to avoid a string copy. Meant
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* for use as a performance optimization. The string is encoded
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* in UTF-8.
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*/
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[noscript] void GetValueConst([shared] out string aConstValue);
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/**
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* This method is called by the nsIRDFService after constructing
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* a resource object to initialize its URI. You would not normally
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* call this method directly
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*/
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void Init(in string uri);
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/**
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* Determine if the resource has the given URI.
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*/
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boolean EqualsString(in string aURI);
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/**
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* Retrieve the "delegate" object for this resource. A resource
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* may have several delegate objects, each of whose lifetimes is
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* bound to the life of the resource object.
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*
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* This method will return the delegate for the given key after
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* QueryInterface()-ing it to the requested IID.
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*
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* If no delegate exists for the specified key, this method will
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* attempt to create one using the component manager. Specifically,
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* it will combine aKey with the resource's URI scheme to produce
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* a ContractID as follows:
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*
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* component:/rdf/delegate-factory/[key]/[scheme]
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*
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* This ContractID will be used to locate a factory using the
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* FindFactory() method of nsIComponentManager. If the nsIFactory
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* exists, it will be used to create a "delegate factory"; that
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* is, an object that supports nsIRDFDelegateFactory. The delegate
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* factory will be used to construct the delegate object.
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*/
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void GetDelegate(in string aKey, in nsIIDRef aIID,
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[iid_is(aIID),retval] out nsQIResult aResult);
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/**
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* Force a delegate to be "unbound" from the resource.
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*
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* Normally, a delegate object's lifetime will be identical to
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* that of the resource to which it is bound; this method allows a
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* delegate to unlink itself from an RDF resource prematurely.
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*/
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void ReleaseDelegate(in string aKey);
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};
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