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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojo/data/api/Notification.js
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
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New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
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+if(!dojo._hasResource["dojo.data.api.Notification"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojo.data.api.Notification"] = true;
+dojo.provide("dojo.data.api.Notification");
+dojo.require("dojo.data.api.Read");
+
+dojo.declare("dojo.data.api.Notification", dojo.data.api.Read, {
+ // summary:
+ // This is an abstract API that data provider implementations conform to.
+ // This file defines functions signatures and intentionally leaves all the
+ // functions unimplemented.
+ //
+ // description:
+ // This API defines a set of APIs that all datastores that conform to the
+ // Notifications API must implement. In general, most stores will implement
+ // these APIs as no-op functions for users who wish to monitor them to be able
+ // to connect to then via dojo.connect(). For non-users of dojo.connect,
+ // they should be able to just replace the function on the store to obtain
+ // notifications. Both read-only and read-write stores may implement
+ // this feature. In the case of a read-only store, this feature makes sense if
+ // the store itself does internal polling to a back-end server and periodically updates
+ // its cache of items (deletes, adds, and updates).
+ //
+ // example:
+ //
+ // | function onSet(item, attribute, oldValue, newValue) {
+ // | //Do something with the information...
+ // | };
+ // | var store = new some.newStore();
+ // | dojo.connect(store, "onSet", onSet);
+
+ getFeatures: function(){
+ // summary:
+ // See dojo.data.api.Read.getFeatures()
+ return {
+ 'dojo.data.api.Read': true,
+ 'dojo.data.api.Notification': true
+ };
+ },
+
+ onSet: function(/* item */ item,
+ /* attribute-name-string */ attribute,
+ /* object | array */ oldValue,
+ /* object | array */ newValue){
+ // summary:
+ // This function is called any time an item is modified via setValue, setValues, unsetAttribute, etc.
+ // description:
+ // This function is called any time an item is modified via setValue, setValues, unsetAttribute, etc.
+ // Its purpose is to provide a hook point for those who wish to monitor actions on items in the store
+ // in a simple manner. The general expected usage is to dojo.connect() to the store's
+ // implementation and be called after the store function is called.
+ //
+ // item:
+ // The item being modified.
+ // attribute:
+ // The attribute being changed represented as a string name.
+ // oldValue:
+ // The old value of the attribute. In the case of single value calls, such as setValue, unsetAttribute, etc,
+ // this value will be generally be an atomic value of some sort (string, int, etc, object). In the case of
+ // multi-valued attributes, it will be an array.
+ // newValue:
+ // The new value of the attribute. In the case of single value calls, such as setValue, this value will be
+ // generally be an atomic value of some sort (string, int, etc, object). In the case of multi-valued attributes,
+ // it will be an array. In the case of unsetAttribute, the new value will be 'undefined'.
+ //
+ // returns:
+ // Nothing.
+ throw new Error('Unimplemented API: dojo.data.api.Notification.onSet');
+ },
+
+ onNew: function(/* item */ newItem, /*object?*/ parentInfo){
+ // summary:
+ // This function is called any time a new item is created in the store.
+ // It is called immediately after the store newItem processing has completed.
+ // description:
+ // This function is called any time a new item is created in the store.
+ // It is called immediately after the store newItem processing has completed.
+ //
+ // newItem:
+ // The item created.
+ // parentInfo:
+ // An optional javascript object that is passed when the item created was placed in the store
+ // hierarchy as a value f another item's attribute, instead of a root level item. Note that if this
+ // function is invoked with a value for parentInfo, then onSet is not invoked stating the attribute of
+ // the parent item was modified. This is to avoid getting two notification events occurring when a new item
+ // with a parent is created. The structure passed in is as follows:
+ // {
+ // item: someItem, //The parent item
+ // attribute: "attribute-name-string", //The attribute the new item was assigned to.
+ // oldValue: something //Whatever was the previous value for the attribute.
+ // //If it is a single-value attribute only, then this value will be a single value.
+ // //If it was a multi-valued attribute, then this will be an array of all the values minues the new one.
+ // newValue: something //The new value of the attribute. In the case of single value calls, such as setValue, this value will be
+ // //generally be an atomic value of some sort (string, int, etc, object). In the case of multi-valued attributes,
+ // //it will be an array.
+ // }
+ //
+ // returns:
+ // Nothing.
+ throw new Error('Unimplemented API: dojo.data.api.Notification.onNew');
+ },
+
+ onDelete: function(/* item */ deletedItem){
+ // summary:
+ // This function is called any time an item is deleted from the store.
+ // It is called immediately after the store deleteItem processing has completed.
+ // description:
+ // This function is called any time an item is deleted from the store.
+ // It is called immediately after the store deleteItem processing has completed.
+ //
+ // deletedItem:
+ // The item deleted.
+ //
+ // returns:
+ // Nothing.
+ throw new Error('Unimplemented API: dojo.data.api.Notification.onDelete');
+ }
+});
+
+}