Using relationships between contexts in model view controller design pattern

A method for storing an interaction status of an application, wherein the application comprises a model, a view for presenting the model, a controller for manipulating the model;

• the view relating to the controller;
• the method comprising:
• providing at least a first context and a second context, wherein each context has a lifetime and the lifetime of the second context spans the lifetime of the first context and wherein a user interface element of the view binds to a first structure element of the first context and the first structure element references a second structure element of the second context;
• receiving from the UI element a modification of application data;
• and
• modifying at least one runtime instance of the second structure element in accordance with the modification.

A plurality of contexts for storing an interaction status of an application, wherein the application comprises a model, a view for presenting the model and a controller for manipulating the model;

• the view relating to the controller, the plurality of contexts comprising:
• a first context;
• and
• a second context,
• wherein:
• a user interface element of the view binds to a first structure element of the first context and the first structure element references a second structure element of the second context;
• the first context relates to the controller and the second context relates to a further controller of the application, wherein the further controller is for manipulating the model without requiring a related view;
• and
• the second structure element declares application data to be instantiated at runtime in at least one runtime instance of the second structure element and to be presented by the UI element.

A computer program product, tangibly embodied in an information carrier, the computer program product being operable to cause data processing apparatus to:

• establish a model;
• establish a first controller and at least a second controller for manipulating the model;
• establish a first view and at least a second view for presenting the model;
• and
• establish at least a first context, a second context and a third context,
• wherein:
• the first and second views relate to the first and second controllers, respectively;
• a user interface (UI) element of the first view binds to a first structure element of the first context and a UI element of the second view binds to a second structure element of the second context;
• and
• the first structure element and the second structure element reference a third structure element of the third context.

A computer program product, tangibly embodied in an information carrier, the computer program product being operable to cause data processing apparatus to:

• provide at least a first context and a second context, wherein each context has a lifetime and the lifetime of the second context spans the lifetime of the first context and wherein a user interface element of the view binds to a first structure element of the first context and the first structure element references a second structure element of the second context;
• receive from the UI element a modification of application data;
• and
• modify at least one runtime instance of the second structure element in accordance with the modification.