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-if(!dojo._hasResource["dojo.data.api.Write"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource["dojo.data.api.Write"] = true;
-dojo.provide("dojo.data.api.Write");
-dojo.require("dojo.data.api.Read");
-
-dojo.declare("dojo.data.api.Write", dojo.data.api.Read, {
- // summary:
- // This is an abstract API that data provider implementations conform to.
- // This file defines function signatures and intentionally leaves all the
- // functionss unimplemented.
-
- getFeatures: function(){
- // summary:
- // See dojo.data.api.Read.getFeatures()
- return {
- 'dojo.data.api.Read': true,
- 'dojo.data.api.Write': true
- };
- },
-
- newItem: function(/* Object? */ keywordArgs, /*Object?*/ parentInfo){
- // summary:
- // Returns a newly created item. Sets the attributes of the new
- // item based on the *keywordArgs* provided. In general, the attribute
- // names in the keywords become the attributes in the new item and as for
- // the attribute values in keywordArgs, they become the values of the attributes
- // in the new item. In addition, for stores that support hierarchical item
- // creation, an optional second parameter is accepted that defines what item is the parent
- // of the new item and what attribute of that item should the new item be assigned to.
- // In general, this will assume that the attribute targetted is multi-valued and a new item
- // is appended onto the list of values for that attribute.
- //
- // keywordArgs:
- // A javascript object defining the initial content of the item as a set of JavaScript 'property name: value' pairs.
- // parentInfo:
- // An optional javascript object defining what item is the parent of this item (in a hierarchical store. Not all stores do hierarchical items),
- // and what attribute of that parent to assign the new item to. If this is present, and the attribute specified
- // is a multi-valued attribute, it will append this item into the array of values for that attribute. The structure
- // of the object is as follows:
- // {
- // parent: someItem,
- // attribute: "attribute-name-string"
- // }
- //
- // exceptions:
- // Throws an exception if *keywordArgs* is a string or a number or
- // anything other than a simple anonymous object.
- // Throws an exception if the item in parentInfo is not an item from the store
- // or if the attribute isn't an attribute name string.
- // example:
- // | var kermit = store.newItem({name: "Kermit", color:[blue, green]});
-
- var newItem;
- throw new Error('Unimplemented API: dojo.data.api.Write.newItem');
- return newItem; // item
- },
-
- deleteItem: function(/* item */ item){
- // summary:
- // Deletes an item from the store.
- //
- // item:
- // The item to delete.
- //
- // exceptions:
- // Throws an exception if the argument *item* is not an item
- // (if store.isItem(item) returns false).
- // example:
- // | var success = store.deleteItem(kermit);
- throw new Error('Unimplemented API: dojo.data.api.Write.deleteItem');
- return false; // boolean
- },
-
- setValue: function( /* item */ item,
- /* string */ attribute,
- /* almost anything */ value){
- // summary:
- // Sets the value of an attribute on an item.
- // Replaces any previous value or values.
- //
- // item:
- // The item to modify.
- // attribute:
- // The attribute of the item to change represented as a string name.
- // value:
- // The value to assign to the item.
- //
- // exceptions:
- // Throws an exception if *item* is not an item, or if *attribute*
- // is neither an attribute object or a string.
- // Throws an exception if *value* is undefined.
- // example:
- // | var success = store.set(kermit, "color", "green");
- throw new Error('Unimplemented API: dojo.data.api.Write.setValue');
- return false; // boolean
- },
-
- setValues: function(/* item */ item,
- /* string */ attribute,
- /* array */ values){
- // summary:
- // Adds each value in the *values* array as a value of the given
- // attribute on the given item.
- // Replaces any previous value or values.
- // Calling store.setValues(x, y, []) (with *values* as an empty array) has
- // the same effect as calling store.unsetAttribute(x, y).
- //
- // item:
- // The item to modify.
- // attribute:
- // The attribute of the item to change represented as a string name.
- // values:
- // An array of values to assign to the attribute..
- //
- // exceptions:
- // Throws an exception if *values* is not an array, if *item* is not an
- // item, or if *attribute* is neither an attribute object or a string.
- // example:
- // | var success = store.setValues(kermit, "color", ["green", "aqua"]);
- // | success = store.setValues(kermit, "color", []);
- // | if (success) {assert(!store.hasAttribute(kermit, "color"));}
- throw new Error('Unimplemented API: dojo.data.api.Write.setValues');
- return false; // boolean
- },
-
- unsetAttribute: function( /* item */ item,
- /* string */ attribute){
- // summary:
- // Deletes all the values of an attribute on an item.
- //
- // item:
- // The item to modify.
- // attribute:
- // The attribute of the item to unset represented as a string.
- //
- // exceptions:
- // Throws an exception if *item* is not an item, or if *attribute*
- // is neither an attribute object or a string.
- // example:
- // | var success = store.unsetAttribute(kermit, "color");
- // | if (success) {assert(!store.hasAttribute(kermit, "color"));}
- throw new Error('Unimplemented API: dojo.data.api.Write.clear');
- return false; // boolean
- },
-
- save: function(/* object */ keywordArgs){
- // summary:
- // Saves to the server all the changes that have been made locally.
- // The save operation may take some time and is generally performed
- // in an asynchronous fashion. The outcome of the save action is
- // is passed into the set of supported callbacks for the save.
- //
- // keywordArgs:
- // {
- // onComplete: function
- // onError: function
- // scope: object
- // }
- //
- // The *onComplete* parameter.
- // function();
- //
- // If an onComplete callback function is provided, the callback function
- // will be called just once, after the save has completed. No parameters
- // are generally passed to the onComplete.
- //
- // The *onError* parameter.
- // function(errorData);
- //
- // If an onError callback function is provided, the callback function
- // will be called if there is any sort of error while attempting to
- // execute the save. The onError function will be based one parameter, the
- // error.
- //
- // The *scope* parameter.
- // If a scope object is provided, all of the callback function (
- // onComplete, onError, etc) will be invoked in the context of the scope
- // object. In the body of the callback function, the value of the "this"
- // keyword will be the scope object. If no scope object is provided,
- // the callback functions will be called in the context of dojo.global.
- // For example, onComplete.call(scope) vs.
- // onComplete.call(dojo.global)
- //
- // returns:
- // Nothing. Since the saves are generally asynchronous, there is
- // no need to return anything. All results are passed via callbacks.
- // example:
- // | store.save({onComplete: onSave});
- // | store.save({scope: fooObj, onComplete: onSave, onError: saveFailed});
- throw new Error('Unimplemented API: dojo.data.api.Write.save');
- },
-
- revert: function(){
- // summary:
- // Discards any unsaved changes.
- // description:
- // Discards any unsaved changes.
- //
- // example:
- // | var success = store.revert();
- throw new Error('Unimplemented API: dojo.data.api.Write.revert');
- return false; // boolean
- },
-
- isDirty: function(/* item? */ item){
- // summary:
- // Given an item, isDirty() returns true if the item has been modified
- // since the last save(). If isDirty() is called with no *item* argument,
- // then this function returns true if any item has been modified since
- // the last save().
- //
- // item:
- // The item to check.
- //
- // exceptions:
- // Throws an exception if isDirty() is passed an argument and the
- // argument is not an item.
- // example:
- // | var trueOrFalse = store.isDirty(kermit); // true if kermit is dirty
- // | var trueOrFalse = store.isDirty(); // true if any item is dirty
- throw new Error('Unimplemented API: dojo.data.api.Write.isDirty');
- return false; // boolean
- }
-});
-
-}