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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /rdf/base/nsIRDFObserver.idl
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/rdf/base/nsIRDFObserver.idl b/rdf/base/nsIRDFObserver.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+#include "nsIRDFResource.idl"
+#include "nsIRDFNode.idl"
+
+interface nsIRDFDataSource;
+
+// An nsIRDFObserver object is an observer that will be notified
+// when assertions are made or removed from a datasource
+[scriptable, uuid(3CC75360-484A-11D2-BC16-00805F912FE7)]
+interface nsIRDFObserver : nsISupports {
+ /**
+ * This method is called whenever a new assertion is made
+ * in the data source
+ * @param aDataSource the datasource that is issuing
+ * the notification.
+ * @param aSource the subject of the assertion
+ * @param aProperty the predicate of the assertion
+ * @param aTarget the object of the assertion
+ */
+ void onAssert(in nsIRDFDataSource aDataSource,
+ in nsIRDFResource aSource,
+ in nsIRDFResource aProperty,
+ in nsIRDFNode aTarget);
+
+ /**
+ * This method is called whenever an assertion is removed
+ * from the data source
+ * @param aDataSource the datasource that is issuing
+ * the notification.
+ * @param aSource the subject of the assertion
+ * @param aProperty the predicate of the assertion
+ * @param aTarget the object of the assertion
+ */
+ void onUnassert(in nsIRDFDataSource aDataSource,
+ in nsIRDFResource aSource,
+ in nsIRDFResource aProperty,
+ in nsIRDFNode aTarget);
+
+ /**
+ * This method is called when the object of an assertion
+ * changes from one value to another.
+ * @param aDataSource the datasource that is issuing
+ * the notification.
+ * @param aSource the subject of the assertion
+ * @param aProperty the predicate of the assertion
+ * @param aOldTarget the old object of the assertion
+ * @param aNewTarget the new object of the assertion
+ */
+ void onChange(in nsIRDFDataSource aDataSource,
+ in nsIRDFResource aSource,
+ in nsIRDFResource aProperty,
+ in nsIRDFNode aOldTarget,
+ in nsIRDFNode aNewTarget);
+
+ /**
+ * This method is called when the subject of an assertion
+ * changes from one value to another.
+ * @param aDataSource the datasource that is issuing
+ * the notification.
+ * @param aOldSource the old subject of the assertion
+ * @param aNewSource the new subject of the assertion
+ * @param aProperty the predicate of the assertion
+ * @param aTarget the object of the assertion
+ */
+ void onMove(in nsIRDFDataSource aDataSource,
+ in nsIRDFResource aOldSource,
+ in nsIRDFResource aNewSource,
+ in nsIRDFResource aProperty,
+ in nsIRDFNode aTarget);
+
+ /**
+ * This method is called when a datasource is about to
+ * send several notifications at once. The observer can
+ * use this as a cue to optimize its behavior. The observer
+ * can expect the datasource to call endUpdateBatch() when
+ * the group of notifications has completed.
+ * @param aDataSource the datasource that is going to
+ * be issuing the notifications.
+ */
+ void onBeginUpdateBatch(in nsIRDFDataSource aDataSource);
+
+ /**
+ * This method is called when a datasource has completed
+ * issuing a notification group.
+ * @param aDataSource the datasource that has finished
+ * issuing a group of notifications
+ */
+ void onEndUpdateBatch(in nsIRDFDataSource aDataSource);
+};