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| Provides classes for binding observable objects, for example UI widgets and model objects. |
| <h2> |
| Package Specification</h2> |
| <p> |
| This package provides classes that can be used to synchronize state between pairs of |
| observable objects with optional data type conversion and validation. |
| <p> |
| A <tt>DataBindingContext</tt> is used to manage a list of <tt>Bindings</tt> |
| with their validation results. |
| </p> |
| <p> |
| Concrete subclasses of <tt>Binding</tt> synchronize state between two observables, |
| called the target observable and the model observable. Usually, the binding will |
| first copy the current state of the model observable to the target observable and |
| from then on track changes on both sides, reacting to changes on one side by |
| performing the corresponding change on the other side. |
| </p> |
| <p> |
| For each binding, two <tt>UpdateValueStrategy</tt> or <tt>UpdateListStrategy</tt> objects (one |
| for each direction) is used to control how the binding should synchronize, and can be used to |
| specify data type converters and validators. |
| </p> |
| <p> |
| <tt>AggregateValidationStatus</tt> allows clients to aggregate the current validation |
| statuses of a list of bindings, typically obtained from a data binding context. |
| </p> |
| <p> |
| For advanced validation, conversion, or similar requirements that affect the way |
| state is copied from one side to the other, subclasses of <tt>UpdateValueStrategy</tt> |
| or <tt>UpdateListStrategy</tt> can be created. |
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