summaryrefslogtreecommitdiffstats
path: root/src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl
diff options
context:
space:
mode:
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl')
-rw-r--r--src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl81
1 files changed, 81 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl b/src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl
new file mode 100644
index 00000000..3f0efbf5
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/ds/nsISimpleEnumerator.idl
@@ -0,0 +1,81 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsISupports.idl"
+
+/**
+ * Used to enumerate over elements defined by its implementor.
+ * Although hasMoreElements() can be called independently of getNext(),
+ * getNext() must be pre-ceeded by a call to hasMoreElements(). There is
+ * no way to "reset" an enumerator, once you obtain one.
+ *
+ * @status FROZEN
+ * @version 1.0
+ */
+
+[scriptable, uuid(D1899240-F9D2-11D2-BDD6-000064657374)]
+interface nsISimpleEnumerator : nsISupports {
+ /**
+ * Called to determine whether or not the enumerator has
+ * any elements that can be returned via getNext(). This method
+ * is generally used to determine whether or not to initiate or
+ * continue iteration over the enumerator, though it can be
+ * called without subsequent getNext() calls. Does not affect
+ * internal state of enumerator.
+ *
+ * @see getNext()
+ * @return PR_TRUE if there are remaining elements in the enumerator.
+ * PR_FALSE if there are no more elements in the enumerator.
+ */
+ boolean hasMoreElements();
+
+ /**
+ * Called to retrieve the next element in the enumerator. The "next"
+ * element is the first element upon the first call. Must be
+ * pre-ceeded by a call to hasMoreElements() which returns PR_TRUE.
+ * This method is generally called within a loop to iterate over
+ * the elements in the enumerator.
+ *
+ * @see hasMoreElements()
+ * @return NS_OK if the call succeeded in returning a non-null
+ * value through the out parameter.
+ * NS_ERROR_FAILURE if there are no more elements
+ * to enumerate.
+ * @return the next element in the enumeration.
+ */
+ nsISupports getNext();
+};